TM-5-4210-205-12
TM-5-4210-205-12
DEPARTMENT OF THE ARMY TECHNICAL MANUAL
ORGANIZATIONAL MAINTENANCE MANUAL
TRUCK, FIRE FIGHTING: POWERED
PUMPER; FOAM AND WATER,
500 G.M.P. CAP.; CENTRIFUGAL
PUMP, POWER TAKE OFF DRIVEN;
400 GAL. WATER TANK, 40 GAL.
FOAM CHEMICAL TANK
(WARD LAFRANCE MODEL M44A1WLF)
FSN 4210-225-9127
HEADQUARTERS, DEPARTMENT OF THE ARMY
11 DECEMBER 1964
SAFETY PRECAUTIONS
BEFORE OPERATION
Do not smoke or use open flame in the area when servicing the batteries. Batteries generate hydrogen, a highly
explosive gas.
Keep metal decks free from grease, oil, and mud, to avoid possible injury.
When handling gasoline always provide a good metal-to-metal contact between fuel tank and container.
DURING OPERATION
When water is being pumped through the discharge system, at least two men should control the hose at the nozzle to
prevent the hose from whipping and causing serious injury.
Stop all operation before performing service adjustments.
Use of a nozzle too small for the pressure can rupture the hose.
AFTER OPERATION
When handling gasoline always provide a good metal-to-metal contact between fuel tank and container.
Do not remove radiator cap from a hot engine until engine has been shut down for 5 minutes to relieve pressure and
avoid being burned.
Changes in Forces: C 1 and C 3
*TM 5-4210-205-12
C3
CHANGE
HEADQUARTERS
DEPARTMENT OF THE ARMY
Washington N, D. C., 16 July 1973
No. 3
Operator and Organizational Maintenance Manual
TRUCK, FIRE FIGHTING: POWERED PUMPER;
FOAM AND WATER, 500-GPM; CENTRIFUGAL PUMP,
POWER TAKE-OFF DRIVEN; 400 GAL WATER TANK, 40
GAL FOAM CHEMICAL TANK (WARD LAFRANCE MODEL
M44A1WLF) NON-WINTERIZED FSN 4210-225-9127
(WARD LAFRANCE MODEL M44A1WLF-W)
WINTERIZED FSN 4210-965-1306
TM 5-4210-205-12, 11 December 1964, is changed as
follows:
Page 1. Appendix III Title is changed as follows: "Basic
Issue Items List and Items Troop Installed or
Authorized."
Page 2. Paragraph 1d is changed as follows:
"d.
Reports of errors, omissions, and
recommendations for improving this publication by the
individual
user
is
encouraged.
Reports
should be submitted on DA Form 2028 (Recommended
Changes to DA Publications) and forwarded direct to
Commanding General, U.S.
Army Troop Support Command, ATTN:
AMSTS-MPP, 4300 Goodfellow Blvd., St. Louis, MO.
63120.
Page 7. After paragraph 8d(5) add "e. For Maintenance
and Operating Supplies see Table 1."
Table 1.1. Maintenance and Operating Supplies
(1)
(2)
Component
Application
Federal
Stock Number
(3)
Description
PUMP
ASSEMBLY
915-231
(1)
9130-265-9435
(1)
9150-231-0937
(1)
9150-265-9428
(1)
9150-242-7601
(1)
GREASE
POINTS
9150-190-0904
TANK PRIMING PUYP
(4)
(5)
Quantity
Required
F/ Initial
Operation
Quantity
Required
F/8 Hours
Operation
OIL, LUBRICATING:
5- gal pail as follows:
Grade 9250 or
2 qt
(2)
OE-30
2 qt
(2)
Grade 9110 or
2 qt
(3)
OE-10
2 qt
(2)
OES
2 qt
(2)
GREASE, AUTOMOTIVE
AND ARTILLERY: 1lb.
can as follows:
GAA
OIL LUBRICATING (3)
as reqr
6 qt
(2)
(2)
{6)
Notes
(1) S" SM 10-C-100-Se
for additional data and
requisitioning procedure
(2) See current LO for
grade application and replacement intervals
(3)Use oil as prescribed
for pump assembly above
*This change supersedes C2, 7 April 1969
THIS PUBLICATION IS A COURTESY QUICK COPY
FROM THE UNITED STATES ARMY PUBLICATIONS
DISTRIBUTION CENTER, ST. LOUIS, MISSOURI,
TO MEET YOUR NEEDS WHILE WE REPLENISH OUR
REGULAR STOCK.
1
Page 107. Appendix III, Basic Issue Items List
and Maintenance Operating Supplies is superseded as follows:
APPENDIX III
BASIC ISSUE ITEM LIST AND ITEMS
TROOP INSTALLED OR AUTHORIZED
Section I. INTRODUCTION
umn in the tabular list of Basic Issue Items List, Section
II, and Items Troop Installed or Authorized, Section m.
a.
Source, Maintenance, and Recoverability
Code(s) (SMR): Not applicable.
b. Federal Stock Number. This column indicates
the Federal stock number assigned to the item and will
be used for requisitioning purposes.
c. Description This column indicates the Federal
item name and any additional description of the item
required.
d. Unit of Measure (U/M). A character alphabetic
abbreviation indicating the amount or quantity of the
item upon which the allowances are based, e.g., ft, ea,
pr, etc.
e. Quantity Authorized (Items Troop Installed or
Authorized Only). This column indicates the quantity of
the item authorized to be used with the equipment.
1. Scope
This appendix lists basic issue items, items troop
installed or authorized which accompany the fire truck
and are required by the crew/ operator for operation,
installation, or operator's maintenance.
2. General
This basic issue items, items troop installed or t
authorized list is divided into the following sections:
a Basic Issue Items List Section II.
Not
applicable.
b. Items Troop Installed or Authorized List -Section
III. A list in alphabetical sequence of items which at the
discretion of the unit commander may accompany the
end item, but are NOT subject to be turned in with the
end item.
3. Explanation of Columns
The following provides an explanation of col
(1)
SMR
Code
Section III. ITEMS TROOP INSTALLED OR AUTHORIZED LIST
(2)
(3)
Description
Federal Stock Ref. No. & Mfr
Usable
Number
Code
On Code
5140-777-4142 BAG, TOOL SATCHEL
4910-204-2547 GAGE, INFLATOR
4720-092-9264 HOSE ASSEMBLY, RUBBER
5120-223-7398 PLIERS, SLIP JOINT
2520-222-8852 SCREWDRIVER
5120-234-9913 SCREWDRIVER
5120-240-8716 SCREWDRIVER
5120-449-8063 WRENCH, ADJUSTABLE,
5120-293-2452 WRENCH, SOCKET
2
(4)
Unit
of
Meas
EA
EA
EA
EA
EA
EA
EA
EA
EA
(5)
Qty
Auth
1
1
1
1
1
1
1
1
1
By Order of the Secretary of the Army:
Official:
VERNE L. BOWERS
Major General, United States Army
The Adjutant General
CREIGHTON W. ABRAMS
General, United States Army
Chief of Staff
Distribution:
To be distributed in accordance with DA Form 12-25A (qty rqr block no. 122), Organizational maintenance requirements
for Fire Fighting Equipment.
U.S. GOVERNMENT PRINTING OFFICE: 1973-769620-1107
221-255
GPO 8908761
TM 5-4210-205-12
C1
CHANGE
HEADQUARTERS
DEPARTMENT OF THE ARMY
WASHINGTON, D.C., 1 September 1966
No. 1
Operator and Organizational Maintenance Manual
TRUCK, FIRE FIGHTING: POWERED PUMPER; FOAM AND
WATER, 500-GPM; CENTRIFUGAL PUMP, POWER TAKE
OFF DRIVEN; 400-GAL WATER TANK, 40 GAL FOAM
CHEMICAL TANK (WARD LAFRANCE MODEL M44A1WLF)
NON-WINTERIZED FSN 4210-225-9127 (WARD LAFRANCE
MODEL M44A2WLF-W) WINTERIZED, FSN 4210-965-1306
TM 5-4210-205-12, 11 December 1964, is changed as follows:
Title is changed as shown above.
Page 100, chapter 6 is added after chapter 5.
CHAPTER 6
WINTERIZATION
Section I. GENERAL
145. Scope
a.
This supplement is published to provide
operating and maintenance instructions for the
winterization kit supplied with the Ward LaFrance Model
M44A2WLF Fire Truck.
b. The winterization kit is designed to provide heat
to maintain equipment and components at an operable
temperature and prevent fluid in the components and
water tank from freezing when ambient temperature
range is from +20°F to -65°F.
Section II. DESCRIPTION
146. Description
The winterization kit consists of four separate
components which can be operated independently: an
engine radiator shutter mechanism (fig. 71.1) which can
be adjusted to restrict the amount of air flowing through
the engine radiator; a liquid heating unit (fig. 71.2)
which heats and circulates liquid through the engine,
engine crankcase, battery compartment, personnel
heater, water tank, and foam tank; a space heater (fig.
71.3) which heats and circulates air through the pump
compartment, hose reel compartment, and equipment
compartments; and an auxiliary motor-generator set (fig.
71.4) which enables the winterization kit to be operated
with the fire truck engine at rest.
147. Engine Radiator Shutters
(fig. 71.1).
The engine radiator shutter assembly is mounted
directly in front of the engine radiator. A control cable
connects the control knob,
TAGO 5667A
1
Figure 71.1. Engine Radiator Shutter.
AGO 5667A
2
Figure 71.2. Fluid heating system diagram.
AGO 5667A
3
Figure 71.3. Space heater system diagram.
AGO 5667A
4
Figure 71.4. Motor-generator set.
Heat Output (BTU per hr) 60,000
Dimensions:
Length ............................................ 24 in. (approx)
Width.............................................. 8 1/2 in.
Height ............................................. 12 in.
Weight (heater only).............................. 30 lbs
Inlet and Outlet Fittings ......................... 3/4 in. I.P.S.
Fuel Consumption High
Fire (bal per hr)............................... 0.75
Watts (running) . ................................... .40-50
Maximum Ignition Voltage
(normal rate) ................................... 12%
Minimum Ignition Voltage
(normal rate) ....................85%
Minimum Operating Voltage (normal rate) .............75%
Voltage (nominal)...................24 Volts DC
Fuel .......................................Gasoline, kerosene, fuel
oil, diesel oil, JP-4
Fuel Inlet................................1/8 in. NPT (female)
Mounting Position...................Horizontal
Radio Suppression .................In accordance with U.S.
Army Specification
MIL-I-10379 (SIG-C)
Electrical Connections............Receptacle
Figure 71.5. Fluid heater specifications.
located in the instrument panel, to the shutters. The
shutters can be manually adjusted to an infinite number
of positions from fully open to fully closed to control the
flow of air through the radiator.
AGO 5667A
148. Liquid Heater
149.
The liquid heater is designed to heat liquid
contained in the truck engine. The heater utilizes any
grade of gasoline, kerosene, M.1,
5
Figure 71.6. Fuel system diagram.
AGO 5667A
6
Figure 71.7. Fluid heater system electrical diagram.
AGO 5667A
7
M.2, or M.3 fuel oil or JP-4 fuel as a combustible. The
electrical requirement is 24 volts-direct current (dc).
Refer to figure 71.5 for specifications.
150. Liquid and Air Systems
a. Liquid Flow System. The liquid flow system
operates in conjunction with the combustion air flow
system to transfer the heat of combustion from the
burner to the liquid to be heated. The combustion
chamber provides passages through which the liquid
flows. The combustion air is circulated around these
passages so that the chamber functions as a heat
exchanger. The liquid is forced into the inlet port at the
side of the combustion chamber by an externally
mounted liquid pump. It leaves the heater through the
fitting at the top of the combustion chamber. The liquid
pump is powered by the electrical circuit of the heater.
b. Combustion Air System. The combustion air
system provides the air to maintain combustion. The air
system consists of a blower motor fan and the
necessary air passages. The air enters the heater
through the larger opening in the heater base, passes
through the combustion air blower shell and into the
burner. The air mixes with the fuel vapor in the burner
and combustion occurs.
The hot, contaminated
combustion air passes through ports at the far end of the
combustion chamber, into the secondary heat
exchanger. During this time, much of its heat is
transferred to the liquid. The air leaves the heater
through the centrally located exhaust opening.
151. Fuel Systems
(fig. 71.6).
The heater fuel system provides a constant flow
of liquid fuel to the burner for combustion, and operates
in conjunction with the heater electrical system. Fuel is
supplied through a fuel pump and filter to the heater,
and reaches the combustion chamber through the
regulator valve and nozzle.
a. Fuel Pump. The fuel pump is electrically
connected to the heater operating circuits and supplies
fuel at low pressure to the regulator valve. The pump is
self-priming, requiring no bleeding or adjustment on first
start.
AGO 5667A
b. Regulator Valve. The regulator valve, mounted
in the control head, consists of two parts-one is a
solenoid-operated shut-off valve and the other is a highlow pressure regulator which varies the pressure of the
fuel being supplied to the nozzle assembly for high- or
low-fire operation.
c. Nozzle Assembly. The nozzle assembly is
contained in a tee, which is connected to the regulator
valve outlet port by an elbow. The nozzle is a thin plate
orifice through which fuel is metered to the burner, and
works with the regulator valve to assure a constant,
smooth metered flow of fuel regardless of the fuel used.
d.
Burner.
The burner is of the modified
vaporizing-pot type with a porous ceramic burner wick
mounted in its base. Fuel enters the burner through the
fuel inlet connection, saturates the wick, and combustion
occurs in the burner throat and the combustion
chamber.
152. Electrical System
(fig. 71.7).
The heater electrical system controls the operations
of the fuel, liquid, and air systems throughout the
complete heater cycle. It also provides safeguards
against electrical and mechanical failures. The remotely
mounted control box assembly controls the circuits from
the power source to the heater and the fuel pump
through a connecting cable assembly.
a. Control Box Assembly.
(1) The control box assembly contains a circuit
breaker, control switch, and indicator lamp.
(2) The circuit breaker protects the system if an
electrical failure occurs. Located in the
power circuit to the system, the circuit
breaker can disconnect the system entirely
when the reset button is pulled out. Never
pull the reset button, however, while the
heater is in operation, since this will
eliminate the heater purging cycle.
(3) The control switch is a double-pole, doublethrow switch with "ON-HI, OFF, ON-LO"
positions. The heater starts operating when
the thermostat calls for heat after the switch
is moved
8
to either ON position. In the ON-LO position
the control switch closes a circuit to the fuel
regulator to reduce fuel flow.
(4) The indicator lamp glows after the heater
reaches
operating
temperature
and
continues to glow until the heater
extinguishes and the combustion chamber
cools. The indicator lamp also provides a
check of the power supply to the heater. A
spring-loaded terminal on the lamp socket
is connected to the circuit breaker, so the
lamp glows when pressed in if the circuit
breaker button is in and power is available.
b. Flame Switch Assembly. The flame switch
assembly is a mechanically operated device which
controls the electrical circuits during heater operation. It
consists of a frame supporting a microswitch and a heatresisting tube encasing a quartz rod. The tube extends
into the combustion chamber and is subjected to the
heat resulting from combustion. The difference in
expansion of the metal tube and the quartz rod when
heated trips the microswitch. The switch automatically
restores itself to the normal position when it cools.
c. Preheater Assembly. The preheater assembly is
an imbedded coil of resistance wire encased in a metal
sheath and mounted within the burner. It is energized
only when the heater is initially started. The preheater
heats the burner in preparation for the incoming fuel for
combustion. This vaporizes the fuel so that it can easily
be ignited.
d. Preheat Relay. The preheat relay is a thermaltype, time-delay relay which delays energizing the power
relay that controls the ignition system, for approximately
one minute until the preheater sufficiently heats the
burner to allow fuel vapor to ignite.
e. Power Relay. The power relay is a coil operated
relay that controls the circuits to the combustion air
blower, ignition system, and the fuel regulator valve
during normal heater operation. The flame switch
supplies energy to the power relay coil through the
preheat relay.
AGO 5667A
f. Non-Fire Relay. The non-fire relay is a thermaltype, time-delay relay which is a safety device
incorporated into the heater electrical system to stop
fuel flow if ignition fails to occur two minutes after the
heater is turned on. The relay heater element is
energized by a circuit through the power relay and the
flame switch in cold position. If the flame switch does
not trip to hot position, the relay will break the circuit to
the fuel regulator valve.
g. Ignition System. The ignition system consists of
a spark plug, ignition coil, condenser, and contact set
similar to automotive systems. The contact set is a
mechanical interrupter, operated by a cam collar on the
combustion air motor shaft, which causes the ignition
coil to energize the spark plug to ignite the fuel vapor.
The spark plug, located in the burner, creates a spark
between its electrode and the ground electrode in the
burner base, causing fuel ignition. The ignition system
is thoroughly shielded for suppression of radio
frequencies.
h. Limit Switch. The overheat limit switch shuts the
heater off by breaking the primary power circuit if the
temperature of the liquid rises beyond a safe limit. The
switch incorporates a manual reset button which must
be pressed to close the circuit again for further heater
operation.
i. Thermostat. The thermostat is an adjustable heat
sensor which is electrically connected to the control box.
When the liquid has attained the preset temperature, the
electric circuit is opened, stopping the heater operation.
The circuit is closed when the liquid temperature is
below the thermostat adjustment allowing the heating
cycle to be completed.
j. Motor Switch. A two position switch permits
operation of the liquid pump without the heating cycle.
When the switch is in the automatic position, the
electrical circuit is connected directly to the liquid heater
system. With the switch in the manual position, the
electrical circuit is disconnected from the liquid heater
system and a circuit is completed to an electrical
source, allowing the pump to circulate fluid.
9
Figure 71.8. Battery compartment shut-of valve.
A 4-way valve (fig. 71.8) allows the heated fluid to
by-pass the battery compartment to prevent overheating
the storage batteries.
personnel heater. An electrically operated fan causes
air to flow through the core, where heat is transferred
from the heated liquid, and circulated throughout the
cab. A separate blower diverts warm air from the heater
core, through apertures in the instrument panel, to the
windshield to eliminate and prevent frost and fogging
conditions on the glass.
155. Personnel heater
157.
156.
When the exterior temperature is not sufficiently
cold to warrant use of the liquid heater, the personnel
heater may be used by actuating the circulating pump in
the liquid heating system, utilizing liquid which has been
heated by the truck engine to supply the heater core.
153. Battery Compartment Shut-off Valve
154.
The personnel heater (fig. 71.9) utilizes liquid which
has been heated by the liquid heater on the engine, to
provide warm air to the cab of the truck. The heated
fluid circulates through a honeycomb core in the
AGO 5667A
10
Figure 71.9. Personnel heater.
158. Space Heating System
The fresh air heater is a fuel burning unit which
incorporates a blower to circulate air. The heater will
function efficiently with any grade of gasoline, kerosene,
No. 1 or No. 2 fuel oil, or JP-4 fuel (fig. 71.10 for
specifications).
159. Air System
(fig. 71.11).
Heat Output (BTU per hr) ............30,000
Dimensions (overall):
Length .................................23 9/16 in.
Width...................................6 1/2 in.
Height ..................................10 in.
Weight (heater only) ...................25 lbs
Standard Heat Outlet ..................6 in.
Fuel Consumption High
Fire (gal. per hr) ...................0.40
Watts (running)...........................120-180
Maximum Ignition Voltage
(normal rate) ........................120%
Minimum Ignition Voltage
(normal rate)........................85%
Minimum Operating Voltage (normal rate) .................75%
Voltage (nominal) .......................24 Volts DC
Fuel ............................................Gasoline, kerosene, fuel
oil, diesel oil, JP-4
Fuel Inlet ....................................1/8 in. NPT (female)
Mounting ....................................Any position
Radio Suppression......................In accordance with U.S.
Army Specification MIL
-S-10379 (SIG-C)
Electrical Connections ................Receptacle
The heater has two air systems that are completely
sealed from each other; they are the circulating air
system and the combustion air
Figure 71.10. Space heater specifications.
AGO 5667A
11
Figure 71.11. Space heater flow diagram.
system. Each system consists of a blower motor, fan,
and the necessary air passages.
a. Fresh Air System. To circulate fresh air for
heating and distribution to the compartment, the fresh
air fan draws air through the opening at the rear of the
heater. The fresh air passes over and cools the motors,
then passes around the burner unit and through a
passageway between the combustion chamber and the
inner wall of a secondary heat exchanger. It also
passes between the heater outer casing and the outer
wall of the heat exchanger.
b. Combustion Air System. Air for the combustion
chamber enters the heater through the larger opening in
the heater base, passes through the combustion air
blower shell and into the burner. The air mixes with the
fuel vapor in the burner, and combustion occurs.
Contaminated combustion air passes through parts at
the far end of the combustion chamber, into the
secondary heat exchanger, and leaves the heater
through the centrally located exhaust opening.
160. Fuel System
The fuel system for the space heater is identical to
AGO 5667A
the liquid heater system. Refer to paragraph 151 for
details.
161. Electrical System
The space heater is similar to the liquid heater
electrical system described in paragraph 152 with the
exceptions of the pump switch and personnel heater and
defroster switch which are omitted and the variations in
the internal wiring (fig. 71.12 for the wiring diagram).
162. Motor-Generator Set
(fig. 71.13).
A 115 volt ac electric motor coupled to a 24 volt dc
generator provides an electrical source to maintain the
vehicle storage batteries at full charge while operating
the winterization kit with the truck engine at rest.
Facility electrical source to operate the motor is
connected to the vehicle by a 50-foot cable. The
generator is protected from damage caused by
excessive current draw by a 30 amp circuit breaker. A
reverse current relay prevents current draw from the
battery when the electric motor is not operating.
12
Figure 71.12. Space heater wiring diagram.
AGO 5667A
13
Figure 71.13. Motor-generator set wiring diagram.
Section Ill. OPERATION
make sure power is available for operation.
If the lamp lights, power is available. If the
lamp fails to light when depressed, press the
reset button to see if the circuit breaker is
tripped, and repeat the test.
(2) Set the control switch to either ON position.
(When the "ON-LO" setting is used, the heat
output is lower than for high-fire operation.)
(3) Preheating takes place for approximately
one minute, after which time the ignition
cycle starts. After approximately another
minutes, the control box indicator lamp will
glow and the heater will circulate warm
liquid.
163. General
This section of the supplement contains complete
operating instructions for all components of the
winterization kit.
164. Engine Radiator Shutter
a. Pull the control knob (fig. 71.14) outward to
close the shutters, restricting air flow through the
radiator.
b. When the engine temperature gage indicates
approximate operating temperature, push the control
knob in to adjust the shutters in a position which allows
sufficient air flow to maintain the engine operating
temperature.
c. Push the control knob fully in to open the shutter
to maximum aperture.
Note. For one minute after the control
switch is turned on, the heater will
indicate no visible or audible signs of
operation until the preheater element
heats the burner sufficiently to cause
combustion. If the control box indicator
lamp glows 1 1/2 to 2 minutes after
heater was turned on, the heater is
operating properly.
165. Liquid Heating System
166. Liquid Heater
a. Starting.
(1) Depress the lens of the indicator lamp to
AGO 5667A
14
Note. When the heater is started for the
first time after installation, or at the
beginning of the heating season, air trapped
in the fuel lines may prevent sufficient fuel
from reaching the heater on the timed
ignition cycle. If the indicator lamp does not
light after three minutes, turn control switch
to OFF position. Check the reset button in
the control box. Wait five minutes; then
restart heater. If the heater still does not
operate properly, shut the unit off and check
for the difficulty, following instructions in
maintenance and repair.
b. Stopping. The heater stops automatically when
the proper temperature is reached. Placing the control
switch in "OFF" position stops heater operation. The
heater will continue to operate, and the indicator lamp
will glow, for approximately two minutes after shutdown.
Caution: Pulling out on the circuit breaker
button on the control box breaks all the electrical
circuits to the heater. Do not attempt to stop heater
operation with the circuit breaker.
Figure 71.14. Engine radiator shutter control.
Figure 71.15. Liquid heater and space heater controls.
AGO 5667A
15
Stopping heater operation with the circuit breaker
prevents the heater from purging itself at the end of
the operating cycle.
169. Battery Compartment Valve
(fig. 71.8).
Place handle on the valve stem. Turn the handle to
the desired position.
167. Personnel Heater
170. Space Heater
The personnel heater can be operated utilizing
heated fluid from either the vehicle engine or the liquid
heater.
a. Heater. Pull heater switch knob (fig. 71.16)
outward to actuate the fan. Open the heater doors to
allow the air to circulate.
b. Defroster. Pull defroster switch outward to
actuate the defroster blower.
168. Operation Without Liquid Heater
Position switch (fig. 71.17) to actuate the pump.
Operate the heater as described in paragraph 167.
171. Operation
a. Starting.
(1) Depress the lens of the indicator lamp (fig.
71.15) to make sure power is available for
operation. If the lamp lights, power is
available. If the lamp fails to light when
depressed, press the reset button to see if
the circuit breaker is tripped, and repeat the
test.
(2) Position the control switch to either of the
ON positions.
Figure 71.16. Personnel heater controls.
AGO 5667A
16
heater. If the heater still does not
operate properly, shut the unit off
and check for the difficulty, following
instructions in maintenance and
repair.
b. Stopping. Position the control switch in the OFF
position.
Caution
Do not use the circuit breaker to stop
the heater as the system will not
purge when all circuits are open.
(3) Preheating takes place for approximately
one minute, after which time the ignition
cycle starts, and the combustion blower
operates. After approximately another
minute, the heater will circulate warm air,
and the control box indicator lamp will
glow to indicate that the heater is
operating properly.
Note
For one minute after the control
switch is turned on, the heater will
give no visible or audible signs of
operation until the preheater element
heats the burner sufficiently to cause
combustion.
If the control box
indicator lamp glows 1/2 to 2 minutes
after the heater was turned on, the
heater is operating properly. If the
indicator lamp does not glow, air
may be trapped in the fuel line,
preventing sufficient fuel from
reaching the heater during the timed
ignition cycle.
This may happen
when the heater is started for the
first time after installation or at the
beginning of the heating season. If
the indicator lamp does not light
after three minutes, turn the control
switch to OFF AG0 SW7A position.
Check the reset button in the control
box. Wait five minutes, then restart
Note
When the control switch is in the
OFF position, the heater will
continue to operate through the
purge cycle. The indicator lamp will
glow for approximately two minutes
after shutdown, until the heater
starts to cool.
172. Motor-Generator Set
a. Starting. Connect the 50-foot cable supplied
with the winterization kit or equivalent to the motorgenerator set receptacle (fig. 71.18) and 115 volt ac
electrical source.
b. Stopping. Disconnect the cable.
17
Note
If the motor-generator set stops, press the reset button (fig. 71.9) to reset the circuit breaker.
Shut off unnecessary electrical components to reduce current draw.
Figure 71.18. 110 VAC receptacle.
Figure 71.19. Circuit breaker.
Section IV. MAINTENANCE
173. General
The section contains instructions to maintain the
winterization kit in an efficient operating condition.
b.
Make certain all electrical connections are
tight. Inspect the insulation on wires and cables for
chafing or damage.
c.
Check fuel lines and connections for leaks.
Make sure lines are securely fastened. If there is any
motion between the heater and the fuel tank, insert a
flexible connection at the point of greatest stress.
d.
Clean the fuel filter sediment bowl. Replace
the filter element as necessary (fig. 71.6).
e.
Keep the heater and accessories clean, and
make certain no obstructions form near the intake and
exhaust openings.
f.
Check the heater and its accessories for tight
mountings.
174. Engine Radiator Shutters
a. Insure that all surfaces and contact points are
clean.
b. Apply a thin coat of lubricant to all pivot points.
175. Liquid Heater
Perform the maintenance procedures listed
below at regular intervals to maintain efficient heater
operation. No lubrication or additional servicing is
required except as noted.
a.
Inspect periodically the spark plug and contact
breaker points, since most heater troubles are caused
by faulty or dirty ignition components. The spark plug
electrode and the insulator should always be dry and
clean. The is gap between the contact points should be
0.025 inches.
176. Space Heater
Refer to paragraph 2-13 for maintenance
procedures.
AGO 5667A
18
177. Motor-Generator Set
a. Motor. No maintenance required.
b.
Generator. Refer to TM 9-2920-209-35 for
maintenance procedures.
c. Voltage Regulator. Refer to TM 9-2920-209-35
for maintenance procedures.
Trouble
Heater fails to ignite
d.
Wiring. Check that all connections are tight.
Inspect the insulation for chafing or damage.
178. Lubrication
No lubrication required.
Probable Cause
Ignition failure
Preheater failure
Excessive carbon deposits in burner
Fuel system failure
Electrical system failure
Excessive time required for ignition
Preheater relay or power relay failure
Flame switch failure
Low voltage
Fuel flow rate slow
Heater starts but fails to keep burning
Heater combustion surges
Heater smokes
Heater fails to respond to "ON-HI"
and "ON-LO" switch operation
No warm liquid circulated (Liquid
Heater)
No warm air distributed (Fresh Air
Heater)
Nonfire relay failure (fuel shuts off
shortly after ignition occurs)
Combustion chamber overheated (limit
switch stops operation)
Burner clogged
Vapor lock in fuel line
Electrical system failure
Timing or power relay failure
Fuel system not supplying steady or
proper flow
Low combustion air blower motor
speed
Low voltage
Fuel system not supplying steady or
adequate flow
Low combustion air blower motor
speed
Low voltage
Remedy
Replace spark plug and/or adjust
contact points.
Replace preheater.
Clean burner bowl.
Test and repair fuel system (para
181).
Test and repair electrical system (par.
2-18).
Replace relay.
Replace flame switch.
Test batteries for proper operating
voltage.
Test and repair fuel system (para
181).
Replace nonflre relay.
Correct overheating. (Make sure air
blower is distributing combustion
air adequately.) Check for plugged
liquid circulating hoses or passages.
Reset limit switch.
Clean Burner.
Prevent excessive heat near fuel line.
Test electrical system (para 180).
Replace relay.
Test and repair fuel system (para
181).
Replace motor.
Test batteries for proper operating
voltage.
Test and repair fuel system (para
181).
Replace motor.
Fuel regulator valve failure
Test batteries for proper operating
voltage.
Replace regulator valve.
Liquid circulating failure
Faulty thermoswitch
Circulating air blower failure
Faulty thermostat
Replace pump.
Replace thermoswitch.
Replace blower motor.
Replace thermostat.
Figure 71.20. Troubleshooting chart
AGO 5667A
19
If the lamp is not faulty, check the power supply and the
power circuit through the circuit breaker.
f. If these steps fail to localize the trouble, check
the operation of the preheater, the preheat relay, the
power relay, and other electrical components.
179. Troubleshooting
Refer to fig. 71.20 for probable causes and
remedies for malfunctions in the winterization kit. The
troubleshooting chart is applicable to both the liquid and
fresh air heaters. Refer to applicable paragraphs for
additional tests to further analyze malfunctions which
may occur within specific components.
181. Fuel System Test
a.
Make certain the feed line shut-off valve is
open.
b. Check the fuel supply. Make certain the fuel is
the proper type for the heater and that it is not
contaminated.
c.
If the fuel pump is not operating, test as
described in paragraph 201.
d.
If the fuel pump is operating, disconnect the
pump outlet connections and check for fuel flow. If flow
does not occur, check the fuel lines for obstructions.
Make sure the fuel filter is clean.
e. If a flow occurs, reconnect the pump outlet and
remove the regulator valve and the nozzle assembly.
Test the operation of these units as described in
paragraphs 192(d) and 193(b).
180. Electrical System Test
a.
Make certain power supply is adequate for the
unit.
b.
Check all electrical connections for tightness
and good condition.
c.
Check limit switch. If switch is open, correct
the reason for overheating of the heater combustion
chamber. Reset limit switch manually.
d.
Check the circuit breaker reset button position
on the control box. The power supply circuit is closed
when the button is pushed in. If the button jumps out
when the heater is started, test further for the electrical
failure.
e.
Press in "press-to-test" indicator lamp on the
control box. If the power supply circuit through the
circuit breaker is complete, the lamp light. If the lamp
does not light, make certain the lamp is not burned out.
Section V. GENERAL
Note
Part numbers for items in this
section are included in the TM 54210-205-35 Supplement Parts List.
182. General
Repair procedures which are standard or
obvious may be excluded from this supplement. In
instances where specific instructions have been omitted,
procedures shall be performed in accordance with good
mechanical practices.
Section VI. BODY CHASSIS OR HULL AND ACCESSORY ITEMS
183. Oil Pan Box Assembly
Refer to TM 5-4210-205-12
procedures.
for
185. Radiator Shutter Assembly
Repair consists of replacement of defective
components.
Refer to fig.
71.21 for assembly
sequence.
repair
184.
Oil Pan and battery Box Heat Exchanger
Assembly
Refer to TM 5-4210-205-12 for repair
procedures.
186. Heater Control Box Assembly
(fig. 71.22)
Remove the two screws (14) on each side of the
nameplate (13) and separate the box assembly (10)
AG0 5667A
20
1 Shutter
2 Control
Figure 71 .21. Radiator shutter assembly.
from the panel (18). Inspect the assembly visually for
wiring defects and faulty parts. Check the circuits, using
the wiring diagram (fig. 71.7). Replace any units that
are obviously faulty. Disassemble and test the control
box components as follows:
a. Circuit Breaker.
(1) To remove the circuit breaker (12, fig.
71.22), disconnect the electrical leads
from the terminals. Tag leads to facilitate
reassembly.
Remove two mounting
screws (15) from the panel (18) and
remove circuit breaker (12).
(2) To test, connect the circuit breaker to a
test circuit which will supply 200 percent
rated current. Press in the reset button;
b.
21
the circuit breaker should open within 10
to 125 seconds. If it fails to meet this
requirement, replace the circuit breaker.
(3) To install the circuit breaker, position it on
the pineal and fasten in place with the two
mounting screws.
Connect the leads
according to the wiring diagram (fig.
71.7.)
Control Switch.
(1) To replace the control switch, disconnect
the electrical leads. Tag leads to facilitate
reassembly. Remove the mounting nut
from the threaded lever lug. Remove
1
2
3
4
5
6
7
8
Screw
Washer
Box
Nut
Connector
Light
Lead
Wire
9
10
11
12
13
14
15
16
Lead
Distribution box
Switch
Circuit breaker
Plate
Screw
Screw
Lead
17
18
19
20
21
22
28
Grommet
Panel
Screw
Nut
Bracket
Lamp
Connector and
light assembly
Figure 71.22. Heater control box assembly.
control switch (11, fig. 71.22) from panel
(18).
(3) To install the control switch (11), position
on the panel and secure with the
mounting nut. (Make certain the switch
lever correctly indicates "ON-HI, OFF,
ON-LO" operation on the plate.) Connect
the leads according to the wiring diagram
(fig. 71.7.)
(2) Check switch continuity with an ohmmeter
in all positions. Make sure the switch
operates freely. Replace if faulty.
AGO 5667A
22
Figure 71.23. Flame switch removal and
installation.
c.
Figure 71.24. Flame switch adjustment.
plate (13). Fasten in place with the
external mounting nut and install the
button.
(4) Fasten the receptacle to the angle bracket
(21) with the mounting screws, washers,
and nuts (1, 2 and 20). Connect the wires
according to the wiring diagram (fig.
71.7). The ground wire from the lamp
connects to a receptacle mounting nut.
Indicator Lamp.
(1) To replace the indicator lamp (22, fig.
71.22), remove the lamp button from the
light socket (6); then remove lamp (22).
(2) Replace the lamp socket or the
receptacle, remove both as an assembly
(2.3). Disconnect the wires leading to the
control switch, circuit breaker, and
ground. To remove the connector (5),
remove the screws (1), washers (2), and
nuts (20) fastening the connector to the
angle bracket (21). Remove the light
socket (6) by removing the lamp button
and external mounting nut. Inspect the
indicator light socket and receptacle for
broken leads, damaged terminals, and
worn or damaged threads. If any parts
are faulty, replace the entire assembly.
(3) To install the connector and light
assembly (23), insert the light socket
through the hole in the panel (18) and
187. Flame Switch, Liquid and Space Heaters
(fig. 71.23).
a. Removal. Remove the control head (para 192)
and remove control head cover. Disconnect the wires
from the terminals of the flame switch. Unscrew the
flame switch mounting nut and remove the flame switch.
b. Flame Switch Adjustment (fig. 71.24).
(1) The adjusting screw is a spring-loaded
screw at the open end of the switch
frame.
It adjusts the travel of the
actuating pin of the switch.
AGO 5667A
23
c.
(2) With the flame switch at room
temperature, loosen the adjusting screw
until a distinct click is heard. Then tighten
the screw until a second click occurs. At
this point continue to tighten for threeeighths of a turn to correctly position the
adjusting screw.
Flame Switch Test.
(1) At room temperature, check for continuity
across terminals 2 and 4 and terminals 2
and 5 (fig. 71.23) with an ohmmeter. If
continuity exists, continue the test.
(2) Apply heat to the flame switch tube. The
switch should change to hot position at
400° to 500oF. Continuity should now be
across terminals 1 and 2 and terminals 1
and 5. Allow the
Figure 71.25. Limit switch, removal and installation.
Figure 71.26. Circulating pump switch.
AGO 5667A
24
Figure 71.27. Personnel heater and defroster
switch, removal and installation.
189. Circulating Pump Switch
(fig. 71.26).
a. Removal. Disconnect electrical leads from the
switch. Remove retaining nut and switch.
b. Installation. Install in reverse of removal.
tube to cool. The switch should return to
cold position at 200°to 300°F.
(3) If a correctly adjusted switch does not
meet these requirements, replace the
flame switch.
d.
Flame Switch Installation. To install the flame
switch, position the switch in the control head; secure
with the mounting nut. Connect the wiring as indicated
in fig. 71.7.
190. Personnel Heater Switch
(fig. 71.27).
a. Removal. Disconnect the electrical leads from
the switch.
Remove the knob and retaining nut.
Remove the switch.
b. Installation. Install in reverse of removal.
188. Limit Switch
(fig. 71.25).
a. Removal. Disconnect the wires at the two limit
switch terminals.
Remove attaching screws, limit
switch, and switch retainer.
b. Installation. Install in reverse of removal.
AGO 5667A
25
191. Defroster Switch
(fig. 71.27).
a. Removal. Disconnect the electrical leads from
the switch.
Remove the knob and retaining nut.
Remove the switch.
b. Installation. Install in reverse of removal.
192. Control Head Assembly (Liquid Heater)
(fig. 71.28).
Most of the parts of the control head assembly
can be replaced by merely removing the cover and
disconnecting the part. Refer to paragraph 194b if
complete removal is required.
a. Lower Delay.
(1) The power relay controls the circuits to
the fuel regulator valve, combustion
blower motor, ignition system, and the
nonfire relay. A defective power relay
would affect operation of the heater
beyond the preheating cycle.
(2) Remove the power relay (9, fig. 71.28) by
pulling it from the socket (11).
(3) To test, apply nominal voltage to
terminals 2 and 7 (fig. 1.7 for method of
determining terminal numbers); the
contacts should close immediately. Use
an ohmmeter to check continuity between
contacts 1 and 3, 4 and 5, and 6 and 8,
when the relay is energized. Replace a
faulty relay; do not attempt to adjust or
repair it.
b. Preheat and Nonfire Relays (fig. 71.28). The
preheat relay and the nonfire relay (3) are identical
timing relays effective during different cycles of heater
operation. Remove and test the relays as follows:
1
2
8
4
5
6
7
8
9
10
Screw
Socket
Relay
Shield
Screw
Terminal block
Resistor
Nut
Relay
Screw
11
12
13
14
15
16
17
18
19
20
c.
Socket
Spacer
Base
Nut
Shield
Clamp
Tee
Elbow
Valve
Base
(1) Remove the control head cover. Depress
and turn the shield (4), then lift off. Pull
relay from the shield-type socket (2).
(2) To test the timing relay, apply proper
voltage across terminals 1 and 2 and
check continuity across terminals 6 and 9
(fig. 71.7 for method of determining
terminal numbers).
Within 30 to 60
seconds, the circuit through terminals 6
and 9 should open. Continuity should now
be between terminals 4 and 6. Replace a
faulty relay; do not attempt to adjust or
repair it.
(3) Either relay can operate in either socket.
If the operation of the preheat relay is
suspected, interchange it with the nonfire
relay and operate the heater. If ignition
takes place, the relay originally in the
preheat circuit is defective. If ignition
does not take place, continue testing the
relays and the other circuits.
Ignition Coil Assembly (fig. 71.28).
(1) If ignition troubles occur, inspect the
ignition coil assembly (25) for a corroded
high-tension terminal socket or a crazed
high-tension cable. Test the coil with
standard coil testing equipment, using
voltage stamped in the coil case. If it is
defective, replace the coil.
Do not
attempt to repair a faulty coil.
(2) To replace the ignition coil assembly (25),
loosen the clamp that secures the shield
(15) to the ignition coil, remove the shield,
and disconnect the wires. Loosen the
screw on the coil mounting clamp (16);
remove the coil assembly. When
21
22
23
24
25
26
27
28
29
Connector
Screw
Screw
Grommet
Coil
Nut
Base assembly
Grommet
Screw
Figure 71.28. Control head assembly.
AGO 5667A
26
Figure 71.28--Continued.
AGO 5667A
27
flow should be between 27 and 33
cc/min. at a pressure of 140.15 psi.
Break the circuit and the fuel flow
should stop immediately.
(e) If outlet pressures do not conform to
specification, or fuel flow does not
stop when the circuit is broken, the
fuel regulator valve is faulty and
should be replaced.
(f) If outlet pressures do conform, but
the fuel flow is lower than specified
during tests, the nozzle assembly is
clogged. Clean the passages of the
nozzle assembly with compressed
air only. Do not attempt to clean
the fuel regulator with any type of
instrument.
(g) If outlet pressures do conform, but
fuel flow is higher than specified
during tests, replace a faulty
assembly.
(3) Install Fuel Regulator Valve and Nozzle
Assembly.
(a) Position the fuel regulator valve (19,
fig. 71.28) on the control head base
(20) and fasten with two screws
(23). Connect wires as shown in
wiring diagram (fig. 71.7.)
(b) Place the nozzle assembly (19, fig.
71.31) in the adapter tee (17, fig.
71.28) and insert pipe plug (18, fig.
71.31).
(c) Install the elbow (18, fig. 71.28) and
the adapter tee on the outlet port of
the fuel regulator valve.
(d) Attach the nut (16, fig. 71.81),
sleeve (17), and fuel tube (15) to
the adapter tee. Install the control
head assembly (para 195k).
193. Control Head Assembly (Space Heater)
a. Removal. Refer to paragraph 192 (above) for
removal procedures.
b. Test Regulator Valve and Nozzle Assembly.
(1) Install a tee with the pressure gage in the
regulator valve outlet port. To this
installing the coil assembly, connect the
wires as indicated in figure 71.7.
d.
Fuel Regulator Valve and Nozzle Assembly. If
faulty fuel regulator operation is suspected, remove the
regulator valve and nozzle assembly and test for correct
fuel flow:
(1) Regulator Valve and Nozzle Assembly
Removal.
(a) Remove the control head assembly
(para 194b).
(b) Remove the adapter tee (17, fig.
71.28) and the elbow (18) from the
fuel regulator valve. Remove the
pipe plug (18, fig. 71.31) from the
adapter tee and unscrew the nozzle
assembly (19) from the tee.
(c) Disconnect the wires at the
terminals of the regulator valve.
Remove the two screws (23, fig.
71.28) fastening regulator valve
(19) to the control head base (20).
(2) Test Regulator Valve and Nozzle
Assembly.
(a) Install a tee with pressure gage in
the regulator valve outlet port. To
this tee, install the adapter tee with
the nozzle assembly. Connect a
fuel supply capable of supplying a
steady flow of fuel under constant
pressure of 3 to 5 psig to the
regulator valve inlet port. Connect
the fuel tube (15, fig. 71.31) to the
adapter tee, and make provisions to
catch the fuel flow in a measuring
graduate (approximately 50-100
ml).
(b) Connect a power supply of proper
voltage to both sides of regulator
valve and make provision to
energize one or both sides of the
valve.
(c) Operate the test setup to energize
the shut-off valve (nameplate end)
of the regulator valve and to supply
fuel to the system. The fuel flow
should be between 40 and 48 cc/
min. at a pressure of 2 ± 0.2 psi.
Break the circuit and the fuel flow
should stop immediately.
(d) Connect both sides of the regulator
valve to the power supply and note
the fuel flow and pressure. The fuel
AGO 5667A
28
Minimum
Maximum
Fuel Flow
(cc/min.)
22
28
Pressure
(psig)
2±0.2
Fuel Flow
(cc/min.)
14.5
19.5
Pressure
(psig)
1±0.15
Figure 71.29. Fuel regulator valve test chart.
(2)
(3)
(4)
(5)
(6)
(7)
c.
Install Fuel Regulator Valve and nozzle
assembly.
(1) Position the fuel regulator valve (19, fig.
71.28) on the control head base (20) and
fasten with two screws (23). Connect
wires as shown in the wiring diagram (fig.
71.12).
(2) Install the nozzle assembly (19, fig. 71.35)
in the adapter tee (17, fig. 71.28) and
insert the pipe plug (18, fig. 71.35).
(3) Install the elbow (18, fig. 71.28) and the
tee on the outlet port of the fuel regulator
valve.
(4) Attach nut (16, fig. 71.35), sleeve (17) and
fuel tube (15) to the adapter tee. Install
the control head assembly.
tee, install the adapter tee with nozzle
assembly. Connect a fuel supply capable
of supplying a steady flow of fuel under
constant pressure of 3 to 5 psig to the
regulator valve inlet port. Connect the
fuel tube (13, fig. 71.35) to the tee and
allow the fuel to flow into a measuring
graduate (approximately 50-100 ml).
Connect the nominal voltage power
supply to both sides of the regulator valve
and make provision to energize one or
both sides of the valve.
Operate the test setup to energize the
shut-off valve (nameplate end) of the
regulator valve and to supply fuel to the
system. The fuel flow should be within
the limits shown in the fuel regulator valve
test chart below for the model heater
tested. Break the circuit, and the fuel flow
should stop immediately.
Connect both sides of the regulator valve
to the power supply and note the fuel flow
and pressure. The fuel flow and pressure
should be within the limits shown in figure
71.29. Break the circuit, and the fuel flow
should stop immediately.
If outlet pressures do not conform to
specification or fuel flow does not stop
during test, the fuel regulator valve is
faulty and should be replaced.
If outlet pressures do conform but the fuel
flow is lower than specified during tests,
the nozzle assembly is clogged. Clean
the passages of the nozzle assembly with
air. Do not attempt to clean the regulator
with any type of instrument.
If outlet pressures do conform, but the
fuel flow is higher than specified during
tests, replace a faulty nozzle assembly.
194. Liquid Heater Disassembly
(fig. 71.30).
a. Removal. Refer to figure 71.31 for removal.
b. Control Head Assembly Removal.
(1) Remove two screws (12) from the control
head cover (18) and lift cover.
(2) Disconnect ignition coil high-tension wire
from
the
spark
plug
assembly.
Disconnect both primary wires leading to
the ignition coil.
(3) Loosen the fuel tube nuts (16) and
remove the fuel tube (15) and sleeves
17).
(4) Disconnect at their terminal points the
three wires extending through the
grommet (48) in the heater casing.
Unscrew the flame switch mounting nut.
(5) Remove the two wires from the limit
switch (2) and disconnect the wire
AGO 5667A
29
Figure 71.30. Liquid heating system.
AGO 5667A
30
1
2
8
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
Hose
Clamp
Heater
Hose
Chain
Hook, S
Handle installation
Handle
Bushing
Elbow
Clamp
Washer
Washer
Nut
Bushing
Elbow
Hose
Tube assembly
Valve
Bushing
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
Elbow
Tube
Valve assembly
Tube
Tube assembly
Bushing
Cock
Valve
Bolt, U
Elbow assembly
Tube assembly
Insulation
Tube
Tube assembly
Tube assembly
Bushing
Cock
Tube
Space heater
Hose
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
Clamp
Clamp
Hose
Insulation
Adapter
Strainer
Element
Insulation
Plug
Nipple
Elbow
Reducer
Nipple
Coupling
Nipple
Elbow
Tee
Nipple
Pump installation
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
Elbow
Adapter
Hose
Elbow
Coolant heater
Elbow
Tube
Switch
Tube assembly
Bushing
Tee assembly
Cock
Tube assembly
Tube
Elbow
Pipe
Bushing
Nipple
Nipple
Figure 71.30--Continued.
(4) Remove the four screws (50) attaching
the casing to the combustion chamber (1).
(5) Remove four screws joining the casing at
the seam. Spread the casing and lift from
the blower assembly (63), burner (28),
and combustion chamber, withdrawing
wire through the rubber grommet (48) in
the casing.
(6) Remove four nuts (65) fastening the
combustion blower assembly (63) to the
combustion chamber; remove the blower
assembly.
(7) Insert a screwdriver through the shell
intake opening; loosen the setscrew (37)
and remove the fan (38).
(8) Disconnect the lead wire at the contact
plate terminal. Remove the three screws
(55) and the contact plate cap (54).
Remove the screws and lock washers
joining the contact plate assembly, motor,
and shell. Remove the contact plate (42)
and the two spacers (68); on the opposite
end of the motor, remove the combustion
air intake shell (77).
(9) Remove screw (56), and remove the
bushing (44), cam collar (43), and contact
cam (67) from the motor shaft.
which extends to the liquid circulating
pump through the grommet (24, fig.
71.28) in the control head base.
(6) Remove the screw (9, fig. 71.31) and the
nut (20), and lift the control head
assembly (21) and the flame switch
assembly (11) from the casing and
combustion chamber. When necessary to
further disassemble the control head, see
control head repair instructions in
paragraphs 192 and 193.
c. Limit Switch Removal. Disconnect the wires at
the two limit switch terminals. Remove two screws (4)
fastening the limit switch (2) to the combustion chamber.
Remove the switch retainer (3).
d. Casing Disassembly.
(1) Remove the spark plug assembly (25),
washer (26), and seal (27) from the
burner.
(2) Remove the two screws (76) attaching the
heater mounting base assembly (75) to
the casing and the combustion chamber.
Remove the heater mounting base
assembly and remove seal (62).
(3) Remove the three screws (49) and the
intake cover (52) from the casing (53).
AGO 5667A
31
Figure 71.31. Liquid heater assembly.
AGO 5667A
32
1
2
8
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
Chamber
Switch
Retainer
Screw
Union
Washer
Seal
Gasket
Screw
Lead
Lead
Screw
Cover
Lead
Tube
Nut
Sleeve
Plug
Nozzle
Nut
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
Head assembly
Screw
Washer
Screw
Spark plug
Washer
Seal
Burner
Gasket
Preheater
Insulator
Washer
Insulator
Insulator
Band
Nut
Setscrew
Fan
Screw
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
Nut
Screw
Plate
Collar
Bushing
Contact set
Washer
Screw
Grommet
Screw
Screw
Nut
Cover
Casing
Cap
Screw
Setscrew
Screw
Washer
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
Bracket
Screw
Washer
Seal
Blower assembly
Bumper
Nut
Motor
Cam
Spacer
Screw
Washer
Insulator
Bracket
Insulator
Washer
Base
Screw
Shell
Figure 71.31-Continued.
cracked, burned, dented or otherwise
damaged condition. Replace faulty parts.
f.
Blower Motor Test. Reassemble the blower
assembly to test the motors. Connect a power supply of
proper voltage to the assembly and operate the motor.
Check motor speed with a stroboscope. The motor
speed should be a minimum of 6,500 rpm. Replace this
motor if it does not meet this requirement.
g. Contact Plate Assembly.
(1) Inspect Contact Set. Disassemble the
heater to provide access to the contact
plate.
Clean the contacts with fine
sandpaper. If the contacts are burned or
deeply pitted and are difficult to clean,
replace both the contact set and the
capacitor, since the capacitor probably
caused the faulty contact condition.
Adjust contact as described in paragraph
(3) below.
(2) Replace Contact Set and Capacitor.
(a) Loosen the terminal nuts (40, fig.
71.31) and disengage the capacitor
lead wire from the terminal.
Remove the capacitor mounting
screw (57) and washer (58) and
remove the capacitor bracket (59)
(10) To remove the burner assembly from the
combustion chamber, remove the union
(5), union seal washer (6), union seal (7),
and gasket (8) extending from the burner
fuel feed connector. ire, washer (32),
insulator washer (33), post insulator (34),
connector band (35), and screw (39) from
the combustion chamber.
(11) Remove the nut (20), lead w Remove the
screw (24) and washer (23) from each
side of the combustion chamber; then
remove the burner (28).
(12) The preheater (30) is threaded to the
burner; unscrew to remove the preheater
and gasket (29). Remove the preheater
nut (36) to remove the connector band
(35) from the preheater.
e. Cleaning and Inspection of Burner Parts.
(1) Use a cloth dampened with solvent, and
dry, compressed air to clean accumulated
dirt from all heater parts. Scrape carbon
deposits and other foreign materials
caused by combustion, being careful to
avoid damaging the ceramic wick. Clean
air ports thoroughly to remove all
accumulations of carbon, or restrictions.
(2) Inspect burner and blower parts,
combustion chamber, and casing for
AGO 5667A
33
and capacitor.
(3)
(b) If the gap needs adjusting, loosen the
adjustable contact mounting screw
and position the stationary contact to
correct the contact gap. Tighten the
mounting screw.
(4) Contact Plate Reassembly. Install contact
plate on the blower motor as instructed in h
(6) below.
h.
Blower, Burner, and Combustion Chamber
Reassembly.
(1) To assemble the blower, burner, and the
combustion chamber, position the gasket
(29, fig. 71.31) on the preheater (30), and
screw the heater onto the burner assembly
(28).
(2) Insert the post insulator (34) into the
opening on the combustion chamber.
Attach the connector band (35) to the post
insulator with a brass screw (39) inserted
from inside the combustion chamber.
Position the insulator washer (33), flat
washer (32), and control head lead on the
screw; secure with a nut (20).
(3) Insert the burner assembly into the
combustion chamber (1). Align the burner
brackets with the screw holes in the
combustion chamber sides, and fasten with
two screws (24) and washers (23), holding
the burner in place against the throat of the
combustion chamber.
Secure the
connector band (35) to the terminal of the
preheater (30) with the preheater nut (36).
(4) Install the gasket (8), union seal (7), union
seal washer (6), and union (5) on burner
fuel feed connector.
(5) Apply several drops of light oil on the cam
collar (43). Position the cam collar and the
cam bushing (44) on the contact cam (67).
Align the holes of the contact cam and the
cam bushing, and install the setscrew (56)
just far enough to hold the parts together.
Position the cam assembly on the motor
shaft so that the setscrew is aligned with
the flat on the motor shaft, and tighten the
setscrew. Make sure that some clearance
exists
(b) Disengage the contact spring from
the terminal screw (69), and lift the
movable (top) contact from the pivot
pin. Remove the screw (47) and
washer (46), and then remove the
adjustable (bottom) contact from the
pivot pin.
Note
Be sure to place the rubbing block of
the movable contact between the two
teeth on the brass cam collar.
(c)
Secure the capacitor to the
contact plate with the capacitor bracket
(59), screw (57) and washer (58). Engage
the capacitor lead wire with the terminal
between the contact spring and brass
washer. Tighten the terminal nuts (40).
Contact Plate Gap Adjustment (fig. 71.32).
(a) With the cam and contact plate
assembled to the motor, rotate the motor
shaft until the movable contact is at the
high point of the cam. Make sure the
rubbing block of the movable contact is
between the teeth of the cam collar. At
this position, an 0.025-in. feeler gage
should just pass between the contacts
Figure 71.32. Adjusting the contact plate
point gap.
AGO 5667A
34
i.
(3) Install intake cover (52) and fasten with
three screws (49).
(4) Position the heater mounting base
assembly (75) on the casing and the
combustion chamber, and fasten to the
casing with two screws (76).
(5) Install the seal (27), washer (26), and
spark plug (25) on the burner.
j.
Limit Switch Installation. Position the limit
switch (2) on the combustion chamber. Place the switch
retainer (3) on the switch and fasten to the weld nuts on
the combustion chamber with two screws (4). Connect
the lead wires to the switch.
k. Control Head Installation.
(1) Position the control head assembly (21)
on the heater, and fasten to the casing
with the screw (9) and to the combustion
chamber stud with the nut (20).
(2) Insert the tube of the flame switch (11)
into the flame switch support tube of the
combustion chamber and tighten the
mounting nut.
Connect the wires as
indicated in the wiring diagram (fig. 71.7).
(3) Connect the fuel tube (15, fig. 71.31) to
the metering tee and union with sleeves
(17) and nuts (16).
(4) Connect the primary lead wires of the coil
shield and connect the high-tension wire
to the spark plug, as indicated in the
wiring diagram (fig. 71.7).
(5) Install the cover (18, fig. 71.31) and
fasten with the two screws (12).
195. Personnel Heater
(fig. 71.33).
a.
Removal. Disconnect the electrical leads.
Remove the defroster hose and liquid hoses. Remove
attaching hardware and lift the heater out of the cab.
b. Installation. Install in reverse of removal.
196. Defroster Blower
(fig. 71.33).
a.
Removal. Remove the defroster hose and
disconnect the electrical lead at the blower. Re
between the motor and the cam
assembly.
(6) Insert the screws and lock washers
through the contact plate (42), and place
the spacers (68) on threaded end of the
screws. Insert the screws straight through
motor (66). Make sure the teeth of the
cam collar (43) engage the rubbing block
of the movable contact. Position the shell
assembly (77) on the opposite end of
motor, and attach with the two screws
inserted through the motor into the tapped
holes of the shell.
(7) Install the contact plate cap (54) over the
cam assembly and the contact plate
assembly, and fasten with three screws
(55). Connect the lead wire from the
ignition coil to the contact plate terminal.
(8) Place the fan (38) on the motor shaft and
adjust the mounting position to allow
approximately 1 6-inch clearance between
shell and fan. Tighten setscrew (37) with
a screwdriver inserted through the shell
intake opening to secure fan to motor
shaft. Make sure the setscrew is aligned
with the flat on the motor shaft.
(9) Position the combustion air blower
assembly (63) on four combustion
chamber studs.
Apply a coat of
"Permatex
Form-A-Gasket,
Aviation
Grade No. 3" for sealing. Fasten with the
four nuts (65). Rotate motor shaft slowly
to make certain the fan does not hit any
stationary parts.
Casing Reassembly.
(1) Place the casing (53) over the assembled
blower, burner, and combustion chamber,
passing the three lead wires through the
grommet (48). Fasten together the edges
of the casing with screws.
(2)
Fasten the casing to the combustion
chamber with four screws (50). Install the
combustion air seal (62) on the intake port
of the blower shell.
AGO 5667A
35
Figure 71.33. Personnel heater and defroster.
move the blower motor to expose the blower attaching
hardware. Remove the blower.
b. Installation. Install in reverse of removal.
(1) Remove the three screws (50, fig. 71.35)
and the intake cover (48) from the casing.
After removing the three screws (50),
remove the circulating air blower
assembly (49) from the casing. Withdraw
the wire through the rubber grommet (23)
in the casing during removal. If the
control head has not been removed,
disconnect the wire at its terminal in the
control head.
(2) Loosen the setscrew (45) and remove the
fan (52) from the motor shaft. Insert a
screwdriver through the motor clamp
assembly to loosen clamp screw (46).
197. Space Heater
Repair procedures for the space heater are
similar to the procedures described in paragraph 194
with the following exceptions. Refer to figure 71.12 for
electrical schematic.
a.
Removal. (fig. 71.34). Disconnect electrical
leads and the flexible tubing from the space heater
assembly. Remove attaching hardware and the space
heater.
b.
Circulating Air Blower Removal and
Disassembly.
AGO 5667A
36
Figure 71.34. Space heating system.
c.
d.
Remove the motor (47) from the motor
clamp (51).
Casing Disassembly.
(1) Remove the spark plug assembly (6),
spark plug seal washer (7), and spark plug
seal (8) from the burner.
(2) Remove the four screws (79) attaching
the heater mounting base assembly (80)
to the casing; remove the base assembly.
(3) Remove the seals (81) from the
combustion air ports, and the five screws
(24) fastening the casing assembly (1).
Spread the casing apart at the joint and
remove the combustion air blower
assembly (63), burner (40), and
combustion chamber (26) as an
assembly. Withdraw the wires through
the grommets (23) and (9) in the casing
during the removal.
Contact Plate. Refer to paragraph 194g.
e.
Blower Motor Test. Reassemble the blower
assembly to test the motors. Connect a 24 vdc power
supply to the assembly and operate the motor. Check
the motor speed with a stroboscope. Minimum speed
allowed is: 5,000 rpm, circulating motor; 6,500 rpm,
combustion motor.
f.
Blower, Burner and Combustion Chamber
Reassembly.
(1) To assemble the blower, burner, and
combustion chamber, insert the burner
assembly (40, fig.
71.35) into the
combustion chamber. Align the burner
brackets with the screw holes in the
combustion chamber sides and fasten in
place with two washers (31) and screws
(32), being careful to hold the burner in
place against the throat of the combustion
chamber.
AGO 5667A
37
Figure 71.35. Space heater assembly.
AGO 5667A
38
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
Casing
Switch
Retainer
Cap
Screw
Spark plug
Washer
Seal
Grommet
Lead
Screw
Switch
Tube
Nut
Screw
Cover
Sleeve
Plug
Nozzle
Lead
Head assembly
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
Grommet
Grommet
Screw
Screw
Chamber
Union
Washer
Seal
Gasket
Washer
Screw
Nut
Washer
Insulator
Insulator
Screw
Screw
Fan
Burner
Washer
Contact set
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
Washer
Screw
Setscrew
Screw
Motor
Cover
Blower assembly
Screw
Clamp assembly
Fan
Cap
Screw
Bushing
Setscrew
Collar
Capacitor and
bracket
59 Screw
60 Bracket
61 Screw
62 Washer
63 Blower assembly
64 Plate
65 Washer
66 Screw
67 Nut
68 Washer
69 Insulator
70 Bracket
71 Insulator
72 Screw
73 Spacer
74 Cam
75 Motor
76 Nut
77 Bumper
78 Shell
79 Screw
80 Base
81 Seal
Figure 71.35-Continued
(75). Make sure that the teeth of the cam
collar (57) engage the rubbing block of the
movable contact. Position the combustion
air shell assembly (78) on the opposite end
of the motor and attach by turning the two
screws inserted through the motor into the
tapped holes of the shell.
(6) Install the contact plate cap (53) over the
contact plate assembly and fasten with
three screws (54).
(7) Place the fan assembly (39) on the motor
shaft and adjust the mounting position to
allow approximately 1-16 inch clearance
between the shell and the fan. Tighten the
special screw (38) with a screwdriver
inserted through the shell intake opening to
secure the fan to the motor shaft. Make
sure the special screw is aligned with the
flat of the motor shaft.
(8) Position the combustion air blower
assembly (63) on the four combustion
chamber studs. Apply a coat of "Permatex
Form-A-Gasket, Aviation Grade No. 3" for
sealing; fasten with nuts (76). Rotate motor
shaft slowly to check for free rotation.
(2) Attach the preheater lead of burner to the
post insulator (36) with the brass screw (37)
inserted from inside the combustion
chamber assembly (26).
Attach the
insulator washer (35), flat washer (34), and
nut (33) to the screw and tighten.
(3) Install the gasket (30), union seal (29),
union seal washer (28), and union (27) on
the burner fuel feed connector.
(4) Apply several drops of light oil on the cam
collar (57). Position the cam collar and the
cam bushing (55) on the contact cam (74).
Align the holes of the contact cam and the
cam bushing and install the setscrew (56)
just far enough to hold the parts together.
Position the cam assembly on the motor
shaft so that the setscrew is aligned with the
flat on the motor shaft.
Tighten the
setscrew. Make sure that some clearance
exists between the motor and the cam.
(5) Insert the screws (61) and lockwashers (62)
through the contact plate (64) and place the
spacers (73) on the threaded end of the
screws. Insert the screws straight through
the motor
AGO 5667A
39
g. Casing Reassembly.
(1) Spread the casing (1); install the assembled
combustion blower, burner, and combustion
chamber into the casing, passing the lead
wires from the preheater, ignition coil, and
the combustion blower motor through the
grommet.
Connect the lead from the
ignition coil to the terminal on the contact
plate (64).
(2) Install the exhaust tube seals (81) around
the combustion air ports and fasten together
the edges of the casing with screws (24).
Install the spark plug seal (8), spark plug
seal washer (7), and the spark plug
assembly (6) into the burner.
(3) Position the heater mounting base assembly
(80) at the bottom of the casing and fasten
with four screws (79).
h. Circulating Air Blower Reassembly.
(1) Place the motor (47) within the motor clamp
assembly (51), allowing the front of the
motor to extend approximately 1/16-inch
beyond the clamp assembly.
Insert a
screwdriver through the clamp shell to
tighten the screw (46).
(2) Place the fan (52) on the motor shaft and
adjust the mounting position to allow
approximately ,/16-inch clearance between
the fan and motor hub.
Tighten the
setscrew (45) to secure the fan to shaft.
(3) Rotate the motor shaft to check for free
rotation.
(4) Insert the circulating air blower assembly
(49) through air intake, first passing the lead
wire through the grommet (23). Fasten the
assembly to the casing with three screws
(50).
198. Battery Box
Refer to TM 5-4210-205-12 for repair procedures.
199. Battery Compartment Shut-off Valve
a. Removal. Disconnect all liquid lines at the valve.
Remove the two U-bolts and the valve.
b. Installation. Install in reverse of removal.
200. Liquid Circulating Pump
a. Removal. Remove nipple (58, fig. 71.30) and
elbow (60) from the pump assembly. Remove coupling
from the pump shaft. Remove attaching parts and the
pump.
b. Installation. Install in reverse of removal.
201. Fuel Pump
Figure 71.36. Battery compartment shut-off valve.
AGO 5667A
a. Fuel Pump Test.
(1) With the fuel pump assembled, connect a
power supply of proper voltage to the fuel
pump, making sure to check for proper
polarity. Connect a fuel supply to the fuel
pump. Connect a liquid pressure gage to
the output port and operate the pump.
Observe the fuel discharge pressure. The
pump should discharge at 3 to 5 psig.
40
1
2
3
Pump assembly
Plunger
Spring
4
5
6
Gasket
Cup
Screw
7
8
9
Screen
Gasket
Cover assembly
Figure 71.37. Fuel pump assembly.
(2) If the pump does not operate satisfactorily,
disassemble, and inspect the screen (7) for
clogging. If the screen is clean and the
pump does not operate satisfactorily,
replace the pump assembly.
b. Fuel Pump Disassembly.
(1) Give the cover (9) one-quarter turn
counterclockwise, using a wrench on the cover nut to
remove it from the bottom of the pump. Carefully
remove the screen (7).
(2) If further pump disassembly is required,
remove screws (6); lift out the cup (5), gasket (4), spring
(8), and the plunger assembly (2). Do not dis
AGO 5667A
assemble the plunger assembly or the
pump assembly.
c. Cleaning and Inspection.
(1) Immerse the screen (7) and the cover (9) in
cleaning solvent; flush carefully.
(2) Clean dirt and dust particles from other
pump parts, using dry, compressed air,
carefully applied.
(3) Check the screen (7) for distortion and
damage.
(4) Check all the parts for cracks, distortion,
signs of overheating, and damaged threads.
d. Fuel Pump Reassembly.
(1) Insert the plunger assembly (2) in the pump
assembly (1). Check the fit
41
of the plunger by slowly raising and lowering
the plunger (2) in the pump cylinder. The
plunger assembly should move freely
without binding or sticking. A click will be
heard each time the plunger approaches the
top of the cylinder. This indicates that the
pump interrupter system is operating
properly.
(2) Insert the spring (3), gasket (4), and cup (5)
into the housing; secure with the screws.
(3) Place the gasket (4) on the cover and seat
the screen (7) in the cover. Assemble these
parts to the pump, being careful to guide the
screen around the cup. Use a wrench on
the cover nut and turn the cover one-quarter
turn clockwise to secure it to the housing.
202. Fuel Filter
a. Removal. Disconnect the three-inch tube (fig.
71.6) from the elbow. Remove the fuel filter from the
pipe connecting the filter to the fuel pump.
b. Repair. Repair of the fuel filter is limited to
replacement of the element and gasket.
c. Installation. Install in reverse of removal.
203. Fuel Lines and Fittings
a. Removal. Refer to figure 71.6 for removal
sequence of the fuel lines and fittings.
b. Installation. Install in reverse of removal.
Section VII. ELECTRIC MOTORS AND GENERATORS
206. Circuit Breaker
204. Motor-Generator Assembly
a. Removal. Remove components of the
motor-generator assembly in the sequence
Refer to figure 71.38 for removal sequence.
shown in figure 71.38.
a. Removal. Refer to figure 71.38 for removal
b. Repair. Repair of the applicable composequence.
nents is limited to replacement of defective
b. Installation. Install in reverse of removal.
parts.
207. Voltage Regulator
c. Installation. Install in reverse of removal.
a. Removal. Refer to figure 71.38 for removal
sequence.
205. Components Drive Coupling
b. Installation. Install in reverse of removal.
a. Removal. Remove either the electric motor
208. Reverse Current Relay
(35, figure 71.38) or the generator (83). Slide
a. Removal. Refer to figure 71.38 for removal
the coupling (34) from the shafts of the electric
sequence.
motor and the generator.
b. Installation. Install in reverse of removal.
1
2
8
4
5
6
7
8
9
10
11
12
Relay assembly
Enclosure
Relay
Lead
Circuit breaker
Lead
Clamp
Connector
Terminal
Nut
Washer
Screw
13 Washer
14 Screw
15 Base
16 Adapter
17 Connector
18 Cable
19 Cable assembly
20 Connector
21 Screw
22 Gasket
28 Cover
24 Gasket
25
26
27
28
29
80
81
82
88
84
85
Connector
Junction box
Washer
Nut
Cable
Screw
Clamp
Connector
Generator
Coupling
Motor
Figure 71.38. Motor-generator set.
AGO 5667A
42
36 Washer
37 Nut
88 Cable
89 .Regulator
40 Connector
-41 Loom
42 Lead
48 Lead
44 Loom
45 Connector
46 Screw
Figure 71.38-Continued
AGO 5667A
43
Pages 103, appendix II is superseded as follows:
APPENDIX II
MAINTENANCE ALLOCATION CHART
Section I. INTRODUCTION
condition, i.e., to clean, preserve, drain, paint, and
1. General
replenish fuel, lubricants, hydraulic, and deicing
a. Section I provides a general explanation of all
fluids, or compressed air supplies.
maintenance and repair functions authorized at various
B— ADJUST: Regulate periodically to prevent
maintenance levels.
malfunction.
Adjustments will be made
b. Section II designates overall responsibility for the
commensurate with adjustment procedures and
performance of maintenance operations on the
associated equipment specifications.
identified end item or component. The implementation
C— ALINE: Adjust two or more components of an
of the maintenance tasks upon the end item or
electrical or mechanical system so that their
component will be consistent with the assigned
functions are properly synchronized or adjusted.
maintenance operations.
D— CALIBRATE: Determine, check, or rectify the
graduation of an instrument, weapon, or weapons
2. Explanation of Columns In Section II
system or components of a weapons system.
a. Functional Group Number. The functional group
E—
INSPECT:
Verify serviceability and detect incipient
is a numerical group set up on a functional basis. The
electrical
or
mechanical failure by close visual
applicable functional grouping indexes (obtained from
examination.
TB 750-93-1, Functional Grouping Codes) are listed on
F— TEST: Verify serviceability and detect incipient
the MAC in the appropriate numerical sequence. These
electrical or mechanical failure by measuring the
indexes are normally set up in accordance with their
mechanical or electrical characteristics of the item
function and proximity to each other.
and comparing those characteristics with authorized
b.
Component Assembly Nomenclature.
This
standards. Tests will be made commensurate with
column contains a brief description of the components
test procedures and with calibrated tools and/or test
of each functional group.
equipment referenced in the MAC.
c.
Maintenance Operations and Maintenance
G—
REPLACE: Substitute serviceable components,
Levels. This column list the various maintenance
assemblies and subassemblies for unserviceable
operations (A through J) and indicates the lowest
counterparts or remove and install the same item
maintenance level authorized to perform these
when required for the performance of other
operations.
maintenance operations.
H— REPAIR : Restore to a serviceable condition by
The symbol designations for the various
replacing unserviceable parts or by any other action
maintenance levels are as follows:
required using available tools, equipment and skills-to include welding, grinding, riveting, straightening,
C--Operator or crew
adjusting and facing.
O--Organizational maintenance
F--Direct support maintenance
H--General support maintenance
D--Depot maintenance
The Maintenance Operations are defined as follows:
A -SERVICE: Operations required periodically to keep
the item in proper operating
AGO 5667A
44
I— OVERHAUL: Restore an item to a completely
serviceable condition (as prescribed by serviceability
standards developed and published by the
commodity commands) by employing techniques of
"Inspect and Repair Only as Necessary" (IROAN).
Maximum use of diagnostic and test equipment is
combined with minimum disassembly during
overhaul. "Overhaul" may be assigned to any level
of maintenance except organizational, provided the
time, tools, equipment, repair parts authorization, and
technical skills are available at that level.
AGO 5667A
Normally, overhaul as applied to end items, is
limited to depot maintenance level.
J— REBUILD: Restore to a condition comparable to new
by disassembling to determine the condition of each
component part and reassembling using serviceable,
rebuilt, or new assemblies, subassemblies, and part.
c. Reference Note. This column, subdivided into
columns K and L, is provided for referencing the
SPECIAL
TOOL
AND
TEST
EQUIPMENT
REQUIREMENTS and REMARKS that may be
associated with maintenance operations (sec. II).
45
Section II. MAINTENANCE ALLOCATION CHART
F
U
N
C.
G
R
O
U
P
E
S
S
COMPONENT ASSEMBLY NOMENCLATURE
N
O.
03
0312
06
0607
0608
0609
0611
0612
0613
0615
12
1208
18
1808
E
N
T
I
A
L
I
T
Y
FUEL SYSTEM
Throttle Controls
Controls, Throttle
ELECTRICAL SYSTEM
Instrument or Engine Control Panel Switches; gages; hourmeter; box, instrument housing; tachometer; lamp
holder: bulb; panel
Cable assembly wiring
Miscellaneous Items
Receptacle, slave; switch, turn signal
Lights
Lights; Lens; doors; gaskets
Light, rotating
Siren
Siren
Switch
Batteries
Box, battery
Chassis Wiring Harness
Harness, wiring
Radio Interference Suppression
Component
BRAKES
Air Brake System
Fitting
Tubing
BODY
Hose Reels
Reels, hose
NOTE REF
A
S
E
R
V
I
C
E
B
A
D
J
U
S
T
C
D
A
L
I
N
E
C
A
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I
B
R
A
T
E
E
I
N
S
P
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C
T
F
T
E
S
T
G
R
E
P
L
A
C
E
H
R
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P
A
I
R
O
O
F
O
O
O
C
AGO 5667A
46
O
O
O
O
O
O
F
O
O
O
O
O
O
O
F
I
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1812
22
2207
2210
31
8100
82
8200
40
4000
4006
4007
4012
4018
4016
Special Pipe Bodies
Body
Doors
Aprons
Tank, water
Brackets; grating; holder, nozzle
BODY CHASSIS OR HULL AND ACCESSORY ITEMS
Winterization Equipment
Box assembly oil pan
Heat exchanger assembly, oil pan and battery box
Exchanger, Heat, Water Tank
Shutter assembly, radiator
Control box assembly
Switches
Control head assembly
Heater assembly, liquid
Heater, personnel
Blower, defroster
Heater assembly, space
Battery Box
Valves
Pump, liquid circulating
Pump, fuel
Fuel filters
Fuel lines and fittings
Data Plates and Instruction Holders
Plates, data
Plates, instruction
BASIC ISSUE ITEMS, MANUFACTURER INSTALLED
Basic Issue Items, Manufacturer or Depot Installed
Case; publications; accessories
BASIC ISSUE ITEMS, TROOP INSTALLED
Basic Issue Items, Troop Installed or Authorized
Tools, common
ELECTRIC MOTORS AND GENERATORS
Motor Assembly
Motors, electric
Starting and Protective Devices
Switches; solenoids
Motor Generator Assembly
Drive components coupling
Switches
Voltage Regulator
Relay
C
O
C
O
O
O
O
F
O
O
O
O
O
O
O
O
F
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
F
F
F
F
O
O
O
F
O
C
C
O
O
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AGO 5667A
47
O
O
O
O
O
F
F
U
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C.
G
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COMPONENT ASSEMBLY NOMENCLAT URE
N
O.
47
4702
55
5500
5501
6506
6507
5513
76
7601
7603
E
N
T
I
A
L
I
T
Y
GAGES
Gages, Mounting, lines and fittings
Gages
PUMPS
Pump Assembly
Pump, primer
Pump, fire
Impellers; Rotors
Rotor, primer pump
Impeller, fire pump
Suction and/or Discharge Systems
Manifolds; valves
Head, suction
Valve, solenoid; fittings
Tubing
Pump Drives
Gears; shafts; seals; bearings
Tubing
Universal joint
Controls, clutch
Fittings
Fluid Lines
Fittings; lines; valves; controls
FIRE FIGHTING EQUIPMENT COMPONENTS
Foam Making Units
Tank, storage
Valves
Rods, valve operating
Pipes; fittings; baffles
Fire Extinguishers
Extinguishers, fire
MAINTENANCE OPERATIONS AND LEVELS
A
S
E
R
V
I
C
E
B
A
D
J
U
S
T
C
D
A
L
I
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C
A
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I
B
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A
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F
F
F
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F
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O
O
O
F
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O
O
O
C
O
F
O
O
O
O
O
C
C
C
AGO 5667A
48
C
O
F
F
O
C
O
NOTE REF
I
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K
S
By Order of the Secretary of the Army:
HAROLD K. JOHNSON,
General, United State Army,
Chief of Staff.
Official:
KENNETH G. WICKHAM,
Major General, United States Army,
The Adjutant General.
Distribution:
Active Army:
USASA (2)
ACSI (1)
DCSLOG (1)
CNGB (1)
TSG (1)
CofEngrs (3)
(1) Army Tml (1)
CofSptS (1)
USAMB (1)
USAARTYBD (2)
USAARMBD (2)
USAIB (2)
USAADBD (2)
USAAESWB (2)
USAAVNBD (2)
USCONARC (3)
OS Maj Comd (6) except
USASETAF (2)
USARJ (1)
USAMOCOM (2)
MDW (1)
Armies (2)
Corps (2)
Div (2)
Engr Bde (1)
Svc Colleges (2)
Br Svc Sch (2) except
USACDEC-AG-A (10)
USlA (2)
GENDEP (10)
Engr Dep (10)
Army Dep (2) except
TOAD (8)
USA Tml Comd (2)
Div Engr (2)
USAERDL (8)
USAMEC (46)
Engr Cen (5)
USAREUR Engr Proc Can (S)
USAREUR Engr Sup Con Agei (10)
Engr Fld Maint Shops (2)
Fort Knox Fld Maint (10)
Fld Comd, DASA (8)
AMS (8)
USAREURCOMZ (2)
USA Corps (1)
MAAG (1)
JBUSMC (1)
Units org under fol TOE:
5-48 (2)
5-287 (5)
5-262 (6)
5-267 (1)
5-278 (5)
5-279 (2)
NG: State AG (3).
USAR: Same active Army except allowance is one (1) copy for each unit.
For explanation of abbreviations used, see AR 8320-50.
* U.S. GOVERNMENT PRINTING OFFICE: 1964-764-028/5089
TM 5-4210-205-12
TECHNICAL MANUAL
HEADQUARTERS
DEPARTMENT OF THE ARMY
WASHINGTON, D. C., 11 December 1964
No. 5-4210-205-12
ORGANIZATIONAL MAINTENANCE MANUAL
TRUCK, FIRE FIGHTING: POWERED PUMPER: FOAM AND WATER,
500 G.P.M. CAP; CENTRIFUGAL PUMP, POWER TAKE OFF DRIVEN;
400 GAL. WATER TANK, 40 GAL. FOAM CHEMICAL TANK (WARD
LAFRANCE MODEL M44A1WLF) FSN 4210-225-9127
CHAPTER 1.
Section
I.
II.
CHAPTER 2.
Section
I.
II.
III.
IV.
V.
CHAPTER 3.
Section
I.
II.
III.
IV.
V.
VI.
VII.
VIII.
IX.
X.
XI.
XII.
XIII.
XIV.
CHAPTER 4.
5.
Section
I.
II.
APPENDIX I.
II.
III.
INDEX
Paragraph
INTRODUCTION......................................................................................................
General ................................................................................................................... 1,2
Description and data................................................................................................. 3-5
INSTALLATION AND OPERATING INSTRUCTIONS
Service upon receipt of equipment .......................................................................... 6-10
Movement to a new worksite ................................................................................... 11,12
Controls and instruments ......................................................................................... 13,14
Operation of equipment ........................................................................................... 15--27
Operation of auxiliary material used in conjunction with the fire truck ...................... 28,29
OPERATOR AND ORGANIZATIONAL, MAINTENANCE
INSTRUCTIONS
Operator and organizational maintenance tools and equipment ............................... 30,31
Lubrication................................................................................................................ 32,33
Preventive maintenance services ............................................................................ 34-36
Troubleshooting ....................................................................................................... 37-47
Field expedient repairs ............................................................................................ 48-50
Radio interference suppression ................................................................................ 51-54
Retainers, steps, tool box door, guards, hose bed assemblies,
and ladder support assemblies ................................................................................ 55-67
Compartment accessory doors, battery box, and oil pan heater adapter .................. 68-74
Fuel system ............................................................................................................. 75,76
Air system ................................................................................................................ 77,78
Electrical system ..................................................................................................... 79-111
Controls, instruments, and panels ............................................................................ 112-120
Pumping system ...................................................................................................... 121-133
Lubrication system ................................................................................................ 134,135
DEMOLITION OF FIRE TRUCK TO PREVENT ENEMY USE ............... .................. 136-140
SHIPMENT AND LIMITED STORAGE
Shipment within zone of interior ............................................................................. 141,142
Limited storage......................................................................................................... 143, 144
REFERENCES........................................................................................................ ............
MAINTENANCE ALLOCATION ............................................................................... ............
BASIC ISSUE ITEMS LIST AND MAINTENANCE AND
OPERATING SUPPLIES ......................................................................................... ............
................................................................................................................................. ............
TAGO 6839A
1
Page
2
2
6
9
9
13
29
31
31
35
41
42
42
44
50
57
58
59
77
83
96
97
99
100
101
103
107
116
CHAPTER 1
INTRODUCTION
Section I. GENERAL
1. Scope
a. These instructions are published for the use of
the personnel to whom the Ward LaFrance Model
M44A1WLF Fire Truck is issued.
They provide
information on organizational maintenance of the
equipment, its accessories, and auxiliaries. This manual
also includes instructions for shipment and limited
storage.
b.
Appendix I contains a list of publications
applicable to this manual. Appendix II contains the
maintenance allocation chart. Appendix III contains a
list of basic issue items authorized the operator of this
equipment. The organizational repair parts and special
tool list will be listed in TM 5-4210-205-20P, when
published.
c. Numbers in parentheses on illustrations indicate
quantity. Numbers preceding nomenclature callouts on
illustrations indicate the preferred maintenance
sequence.
d. The direct reporting, by the individual user, of
errors, omissions and recommendations for improving
this manual is authorized and encouraged.
DA Form 2028 (Recommended Changes to DA
Publications) will be used for reporting these
improvements. This form will be completed in triplicate
using pencil, pen, or typewriter. The original and one
copy will be forwarded direct to the Commanding
Officer, 1.U. S. Army Mobility Equipment Center,
ATTN: SMOME-MM, P. O. Drawer 58, St. Louis, Mo.
63166. One information copy will be provided to the
individual's immediate supervisor (e.g., officer,
noncommissioned officer, supervisor, etc.).
e.
Report
all
equipment
improvement
recommendations as prescribed by TM 38750.
2. Record and Report Forms
DA Form 2258, (Depreservation Guide of Engineer
Equipment). For any other record and report forms
applicable to the operator and organizational
maintenance, refer to TM 38-750.
Note. Applicable forms, excluding standard
Form 46 which is carried by the operator. will be
kept in a canvas bag mounted on the equipment.
Section II. DESCRIPTION AND DATA
and transporting the ladders. Two spotlights one on
each side of the personnel cab windshield cab
windshield posts, and two floodlights are mounted on the
The War(LaFrance Model M44A1WLF Fire Truck
rear of the truck to provide a means of lighting during
has the following major components of fire-fighting
night operation. The battery charger receptacles are
equipment mounted on the chassis. A foam concentrate
located on the rear of the truck for connection to an
tank is mounted in the fire pump compartment
external battery charging source. The fire extinguisher
immediately behind the personnel cab, while two
brackets are on the rear stanchion of the truck. A
pioneered hose reel assemblies, one on each side of the
combination siren and siren light, located on top of the
truck, are installed in the hose reel and pump
left front fender provides means o warning in an
compartments (figs. 1 and 2). A 500 gallon water tank
emergency operation.
All fire fighting equipment
with a water tank fill provides a means filling the tank
enclosed in an insulated body.
without engaging the fire pump. The support assembly
is locate above the water tank and provides a means of
securing
3. Description
TAGO 6839A
2
Figure 1. Fire truck, right front, three-quarter view and shipping dimensions.
TAGO 6839A
3
Figure -2. Fire truck, left rear, three-quarter view.
TAGO 6839A
4
4. Identification and Tabulated Data
a.
Identification.
The fire truck has three
identification plates. Refer to TM 9-2320-235-10 for
chassis and engine data plates.
(1) Corps of Engineers plate. Provides a short
nomenclature, Federal stock number,
manufacturer's name, equipment model,
and serial numbers. It is mounted in the
cab on the cab front panel.
(2) Operating instruction plate.
Provides
instructions for pumper operation. It is
mounted on the left side of the unit boldy
near the pump station.
(3) Pumper capacity plate. Provides the engine
revolution per nlinute, pressure and gallons
per minute for pump, operation.
It is
mounted on the left side of the unit body
near the pumper station.
b. Tabulated Data.
(1) Water pump.
Manufacturer ............... Hale Fire Pump Company
Type ........................ Centrifugal
Serial number . ............ 24192
Capacity....................... 500 gpm (gallons per minute)
Type drive ................... Power takeoff shaft from truck
transfer ease
Water pressure control ......Throttle and relief valve
control
Performance data:
GPM ..................... Pressure .................. Engine Rpm
500 ........................ 120 .......................... 1550
250 ........................ 200 ........................... 1775
167 ........................ 250 ........................... 1980
80%, Engine peak ..........2080 rpm (revolutions per
minute)
90% Engine peak ...........2340 rpm
(2) Primer pump.
Manufacturer ...............Hale Fire Pump Company
Type .......................Microswitch actuator, rotary
vacuum pump
(3) Water tank.
Manufacturer ...............Ward LaFrance Co.
Capacity ...................400 gal (gallons)
(4) Foam tank.
Manufacturer ............... .Ward LaFrance Co.
Capacity ...................... 40 gal
(5) Hose reels assemblies.
Type ........................ Electric Rewind Mechanical
........................ or manual
Pressure ...................... .3000 psi (pounds per square
inch)
(6) Heat exchanger.
Manufacturer ............... Sekdure Co.
Model ........................ 1113-1
(7) Foam metering valve.
Manufacturer ............... . Rockwood Sprinkler Co.
Solution ....................... Foam Liquid and Water
Water supply
. Water tank, hydrant or suction
lift
Type ........................ .Adjustable
(8) Hose reel motor.
Manufacturer ............... .The ,Leland Ohio Electric Co.
Horsepower ................. .1/4
Volts
....................... .24
Amperes ..................... 20
Time Rating ................ . 5 minutes
Revolutions per minute 500
Serial number ............. 19110 63K CCW
(9) Siren.
Manufacturer ............... .Sireno Signal Mfg. Corp.
Model number ............. VAL,
Serial number ............. 1791
Federal stock number .. .6350577-3417
Volts .24 de (direct current)
(10) Beacon warning light.
Manufacturer ............... .Sireno Signal Mfg. Corp.
Serial number ............. 192
Volts ........................ 24
(11) Dimensions and weight.
Overall length ............. 272 inches
Overall height ............. 110 inches
Overall width ............... 96 inches
Shipping weight ........... 15,700 pounds
(12) Wiring diagram.
Figure Y. Wiring diagram.
(Located in back of manual)
5. Difference in Models
This manual covers only the Ward LaFrance Model
M44A1WLF Fire Truck. No known differences exist
for the model covered by this manual.
TAGO 6839A
5
CHAPTER 2
INSTALLATION AND OPERATING INSTRUCTIONS
Section I. SERVICE UPON RECEIPT OF EQUIPMENT
Figure 4. Blocking and tiedown removal and lifting with as crane.
TAGO 6839A
6
6. Unloading the Equipment
a. Preparation for Unloading. Refer to figure 4, and
remove blocking and tiedown from wheels and axles.
Note. The fire trunk will have to be jacked up slightly to
remove blocking from axles.
b. Unloading.
(1) Unloading by driving or towing.
(a) Drive the fire truck off the carrier using
a suitable ramp.
Refer to TM 9232023,5-10 for the fire( truck operating
details.
(b) In the event no is available to drive the
truck off the carrier, construct a ramp
following construction details and
specifications contained in figure 5.
(2) Lifting. Attach four slings of equal length to
the four lifting rings as illustrated on figure 4 with a hoist
of sufficient capacity lift the fire truck off and away from
carrier.
Caution: Be sure the fire truck has sufficient
clearance before unloading.
7. Unpacking the Equipment
a. Unpacking.
(1) Open the electrolyte boxes and remove the
bottles of electrolyte.
(2) Open packing boxes and place tools in tool
box.
(3) Place fire extinguisher in compartment.
b. Depreservation.
Prepare the fire truck for
inspection and operational as outlined on DA Form 2258
(Depreservation Guide) that is attached on or near the
operator's controls.
8. Inspecting and Servicing Equipment
Note. Make sure equipment is completely deprocessed
before servicing. Make sure preservatives have been
remove from such items as crankcase, fuel tank,
gearboxes, and the like.
a. Inspection.
(1) Make a thorough visual inspection of the fire
truck for damage that may have occurred during
shipment. Inspect components for loose mounting and
missing mounting hardware.
(2) Inspect the packing list and make sure that
all equipment listed has been received.
TAGO 639A
(3) Inspect the truck chassis TM 9-2320-23510.
b. Servicing.
(1) Perform
the
daily
and
(quarterly
maintenance services paras. 35 and 36).
(2) Lubricate the truck chassis TM 9-2320-23510 ).
(3) Fill the truck cooling system (TM-923-23510).
c. Emergency Duty. If tile fire truck is to be placed
on emergency standby duty, close water and foam
concentrate drain valves and fill each tank. Both tanks
may be filled with water or the 400-gallon tank with
water and the 40-gallon tank with foam concentrate,
depending upon the individual requirements.
d. Initial Test.
(1) Unload fire truck (para. 6)
(2) Start the engine (TM 9-2320-235-10),
operate at low speed for 5 to 10 minutes , and make
sure the engine is operating properly.
(3) Do not operate the truck at speeds in
excess of 25 miles per hour (mph) during break-inperiod.
(4) Fill the 400-gallon water tank and the 40gallon foam tank (para. 18).
(5) Check performance of fire truck pump
controls, instruments, and gages.
9. Installation of Separately Packed Components
a. Batteries are shipped adding electrolyte.
b. For battery servicing and installation, refer to TM
9-2320-235-10.
Warning: Do not smoke or use an open
flame in the vicinity when servicing the
batteries. Batteries generate hydrogen, a
highly explosive gas.
10. Installation or Setting Up Instructions
a.
General.
The fire truck will be received
completely assembled and ready for use, except for
servicing the batteries.
b. Batteries. Refer to TM 9-2320-235-10 for battery
service.
7
Figure 5. Ramp construction details.
TAGO 6839A
8
Section II. MOVEMENT TO A NEW WORKSITE
c.
11. Dismantling for Movement
a.
The fire truck requires no (disassembly
other than the safe and -proper storage of hoses,
ladders, hose connections, adapters, and accessories
for movement to a new worksite.
b.
Disconnect the battery cables and drain the
fuel (TI 9-2320-235-10) in the event the fire truck is
moved by some means other than its own power.
Caution: Do not exceed 20 mph on
good hard surface road or 10 mph on
secondary roads or across country
when towing the fire truck.
Drain the water tank and foam tank.
(para 20).
d.
Lock the hose reel assemblies (para. 19).
12. Reinstallation After Movement
a.
Fill the water tank and foam tank (para.
18).
b.
Service the carriers' fuel system (TM 92320-235-10).
c.
Connect the battery cables to the batteries
(TM 9-2320-235-10).
Section III. CONTROLS AND INSTRUMENTS
13. General
14. Controls and Instruments
This section describes, locates, illustrates, and
furnishes tile operator,
crew, or driver sufficient
information about the various (controls and instruments
for p)roper operation of the fire truck.
The purpose, location, and use of the controls and
normal readings of the instruments and gages are
illustrated on figure 6. Refer to TM 9-2320-235-10 for
chassis and engine controls and instruments.
TAGO 6839A
9
Figure 6. Controls and instruments.
TAGO 6839A
10
D-Left side controls and instruments
Figure 6-Continued.
TAGO 6839A
11
Figure 6-Continued.
E-Left side controls and instruments-Continued
TAGO 6839A
12
Section IV. OPERATION OF EQUIPMENT
15. General
a.
The instructions in this section are published
for the information and guidance of the personnel
responsible for operation of the fire truck.
b.
The operator must know how to perform
every operation of which the fire truck is capable. This
section gives instructions on starting and stopping the
fire truck, on the basic motions to perform the specific
tasks for which the equipment is designed. Since nearly
every job presents a different problem, the operator or
crew may have to vary the given procedure to fit the
individual job.
Figure 7. Priming pump details.
TAGO 6839A
13
16. Starting the Engine
18. Priming Water Pump and Filling Tanks
a.
Perform the daily preventive maintenance
(para. 35).
a.
Priming Water Pump. Refer to figure 7, and
prime the water pump by one of the three methods.
b.
Start the engine (TM 9-2320-235-10).
b.
Filling the 400-Gallon Water Tank From
Suction Lift. Refer to figure 8, and fill the 400-gallon
water tank.
17. Stopping the Engine
Stop the engine (TM 9-2320-235-10).
Figure 7-Continued.
TAGO 6839A
14
Figure 7-Continued.
TAGO 6839A
15
Figure 7-Continued.
TAGO 6839A
16
Figure 8. Filling water tank from suction lift.
TAGO 6839A
17
c.
Filling the 400-Gallon Water Tank Through
the Water Tank Fill. Refer to figure 9, and fill water tank
through water tank fill.
d.
Filling the 400-Gallon Water Tank From a
Hydrant. Refer to figure 10, and fill the 400-gallon water
tank from a hydrant.
Figure 9. Water tank fill.
TAGO 6839A
18
Figure 10. Filling water tank from hydrant.
TAGO 6839A
19
e.
Filling
40-Gallon
Foam
Tank
With
Concentrate. Refer to figure 11, and fill the 40-gallon
foam tank with concentrate.
NOTE:
Pumping Water From the 400-Gallon Tank.
(1)
Water may be pumped either
independently to one, or to all of the outlets after
removing the discharge caps and connecting hoses.
(2)
tank (para. 18).
ALWAYS FLUSH THE FOAM SYSTEM
AS SOON AS IT IS DRAINED UNLESS
IT
IS
TO
BE
IMMEDIATELY
REFILLED.
DRAINING:
b.
Prime the water pump from water
(3)
Follow steps 4 through 7, figure 13,
outlined in pumping from suction lift to pump water from
water tank.
PLACE A SUITABLE
CONTAINER
UNDER
FOAM TANK AND OPEN
DRAINCOCK.
c.
Pumping Water From Hydrant.
figure 14, and pump water from hydrant.
Refer to
Note.
If possible, flush dirt from hydrant
before attaching hose.
d.
Pumping Water from the Hose Reels. Refer
to figure 15, and pump water from hose reels.
e
Pumping Foam.
pump foam from foam tank.
Refer to figure 16, and
20. Draining and Flushing Details
a.
Draining Water Pumping and Lines. Refer
to figure 7, and (drain the water pump, valves, and lines.
b.
Draining the Water Tank. Refer to figure 7,
and drain the 400-gallon water tank.
c.
Draining and Flushing the 40-Gallon Foam
Concentrate Tank. Refer to figure 17, and drain and
flush the 40-gallon foam concentrate tank.
d.
Flushing Discharge Line System. Refer to
figure 177, and flush the discharge line system.
21.
Final Test Before Housing Fire Truck After
Returning From Fire
a.
Perform
services (para. 35).
daily
preventive
maintenance
b.
Close all controls and valves and have
suction caps tight.
c.
Pull primer valve lever and run until
combination gage shows about 15 inches of vacuum in
15 seconds.
Figure 11. Foam tank filling details.
f.
Filling Both Tanks With Foam Concentrate.
Refer to figure 12, and fill both foam and water tanks
with concentrate.
d.
Close primer valve lever and watch gage. If
vacuum falls rapidly it indicates air leakage.
19. Pumping Details
e.
Test suction hose by attaching suction hose
to pump and placing suction tube cap on end of suction
hose in place of strainer and test for leaks.
a.
Pumping Water From Suction Lift. Refer to
figure 13, and pump water from suction lift.
f.
Repair
maintenance.
TAGO 6839A
20
or
report
to
direct
support
B-Tank cover and overflow
C-Tank screen and opening
Figure 11-Continued.
TAGO 6839A
21
Figure 12. Foam tank and water tank filling with foam concentrate details.
TAGO 6839A
22
Figure 13. Pumping water from suction lift.
TAGO 6839A
23
Figure 14. Pumping water from hydrant.
TAGO 6839A
24
Figure 15. Pumping water from the hose reels.
22. Operation in Extreme Cold (Below 0°F.)
a. General.
Operation in extreme cold
temperatures creates special problems which require
careful inspection and maintenance. Personnel should
be especially careful not to subject the fire truck to any
sudden shock loads or rough handling which might
strain the equipment and crack or break metal parts. Do
not allow water to spray over the body of the truck or the
compartment doors carefully at slow speeds.
All
controls, linkage, frame mountings, and drive parts must
be carefully inspected for damage. Refer to TM 9-2320235-10 for additional information on operating the fire
truck in extremely cold temperatures.
TAGO 6839A
b.
Lubrication. Be sure to use the correct grade of
lubricant for all points of application. Refer to LO 92320-235-12 and LO 5-4210-205-12 for special cold
weather lubrication instructions.
c.
Hose Nozzles and Hoses. If the hose
nozzles are closed in extremely cold weather, water in
the hoses and nozzles freezes rapidly. Immediately
after pumping, detach the nozzles and drain the hoses.
If possible, dry the hoses before stowing to prevent
freezing.
d.
Pump, Lines. Drain water from pump and
lines and leave drain open until all water is drained then
close drain.
25
Figure 15-Continued.
TAGO 6839A
26
Figure 16. Pumping foam.
23. Operation in Extreme Heat
a.
General. Refer to TM 9-2320 235-10 for
additional information on operating the fire truck in
extreme heat. Pumps are not affected by extreme heat,
except for lubrication requirements.
b.
Lubrication. Be sure to use the proper
grade of lubricant for all points of application. Refer to
LO 9-2320-235-12 and LO 5-210-205-12 for special
lubrication. Check the lubricant level frequently.
24. Operation in Sandy or Dusty Areas
a.
Lubrication.
Keep all lubrication points
clean and well lubricated. Lubricate sparingly but more
frequently than under normal conditions. Clean all oily
TAGO 6839A
or greasy surfaces, paying particular attention to the
pump oil fill as it accumulates dust and sand. Service
the air cleaners, breathers, and oil filters more
frequently than under normal conditions (TM 9-2320235-10).
b..
Cooling and Fuel Systems. Service the
radiator, fuel tank, and fuel filter (TM 9-2320-235-10).
c.
Pumps and Hose Reels. Keep the body
compartment doors closed except to perform necessary
operations. Wipe the hose reel drive gears and drive
chains to remove as much grease and oil from the
exposed surfaces as possible. When dusty or sandy
conditions no longer exist, remove the chains and wash
with an approved cleaning solvent,
27
Figure 17. Draining and flushing foam concentrate tank and discharge line system.
TAGO 6839A
28
lubricate, and reinstall. Clean all the machined surfaces
of the pump and control linkages to remove
accumulated dust and sand.
d.
Electrical Systems. Keep the insulation
electrical connections, and all motors free from dust and
sand to prevent wear and short circuits. Cover the siren
when not in use.
25. Operation Under Rainy or Humid Conditions
a.
General. High humidity causes a rusting
and corrosive action to exposed metal surfaces with oil
or grease.
b.
Fuel System.. Keep the fuel tank as full as
possible to eliminate condensation. Clean the fuel line
sediment bowl daily (TM 9-2320-235-10).
c.
Electrical System.
Keep the electrical
system clean an(d dry. Wipe off any excess moisture.
Pay particular attention to electrical connections.
26. Operation in Salt Water Areas
a.
exposed metal is greatly accelerated in salt water areas.
Coat all exposed metal surfaces with an approved
lubricant. When the fire truck has been partly immersed
or sprayed with salt water, wash down with fresh water.
b.
Pumping Salt Water. Do not use salt water
except in case of extreme emergency. At the earliest
opportunity after pumping salt water, flush the tank
piping and fire pump thoroughly with fresh water. After
flushing, drain the water pump.
27. Operation at High Altitude
a.
General. Operation at high altitude presents
special problems due to lower atmospheric pressure and
wide differences in temperature, which occurs during the
day and night. Protect the fire truck at all times from the
lowest anticipated temperature.
b.
Cooling System. Keep the cooling system
clean and filled to the proper level. Inspect frequently
as water evaporates more rapidly at high altitudes.
Keep the radiator clean and engine compartment doors
and radiator shutters open when in operation.
General. The deterioration and corrosion of
Section V. OPERATION OF AUXILIARY MATERIEL USED IN CONJUNCTION WITH FIRE TRUCK
28. Carbon Dioxide and Carbon Tetrachloride Type
Fire Extinguishers
a.
(3)
Refilling and Maintenance.
For
detailed information on refilling and maintenance, refer
to TM 5-687 and TM 9-1799.
Carbon Tetrachloride Type.
(1)
Description. The carbon tetrachloride
type fire extinguisher is suitable for electrical fires
because it will not damage electrical equipment or
conduct electricity. It is a 1-quart, vaporizing-liquid,
pump operated extinguisher.
(2)
Warning
Carbon Dioxide Type.
(1)
Description. The carbon dioxide fire
extinguisher is suitable for use on
electrical and flammable fires.
The
carbon dioxide type is of the 15-pound
size.
The 15-pound extinguisher is
portable.
(2)
Operation.
Remove the fire
extinguisher from its location, break the seal, operate
the control valve, and direct the stream at the base of
the flame.
b.
its location; turn the handle and work the handle like a
pump. Direct the stream at the base of flame.
Operation.
Be extremely careful when using a
carbon tetrachloride fire extinguisher
in an enclosed area.
Provide
adequate ventilation before entering
an enclosed area where carbon
tetrachloride has been used.
(3)Maintenance.
For maintenance of the
extinguisher, refer to TM 5-687 and TM 9-1799.
29.
Monobromotrifluoromethane and Foam Type
Fire Extinguishers
a.
Monobromotrifluoromethane Type.
(1)
Description.
The monobromotrifluoromethane
type fire extinguisher is generally suitable for all types of
fire, except fire involved with LOX (liquid oxygen)
generating equipment. The fire extinguisher is furnished
with a disposable type cylinder.
(2)
Operation.
To operate the fire
extinguisher, perform the following:
Remove fire extinguished from
TAGO 6839A
fire
29
(a)
Remove fire extinguisher from
(b)
Break seal by pulling safety pin
its location.
(f)
Attach valve assembly and
tighten swivel coupling nut on the new cylinder and
place fire extinguisher in mounting bracket.
from handle.
(c)
Point horn at base of flame.
(d) Press trigger for discharge and
direct stream at base of flame.
(e)
Replace cylinder immediately
after using.
(3)
Replacement of Cylinder. To replace
cylinder, perform the following:
(a)
from used cylinder.
Press lever to release pressure
(b) Loosen swivel valve coupling
nut and remove valve assembly from used cylinder.
(c)
Remove instruction band from
(d)
Place
used cylinder.
new
cylinder
through
instruction band.
(e) Replace safety pin in valve and
seal pin with sealing wire.
TAGO 6839A
cylinder to
instructions.
(g)
show
Adjust instruction
maintenance and
band on
operating
(4)
Maintenance. Weigh fire extinguisher
every 3 months, and replace cylinder if gross weight has
decreased 4 ounces or more. Lubricate cylinder neck
threads with one drop of OE 30 oil before reassembly.
b.
Foam Type.
(1)
Description.
The foam type fire
extinguisher is similar in size and appearance to the
soda-acid extinguisher but differs in internal construction
and extinguishing agent.
(2)
Operation.
Remove the foam
extinguisher from its location.
Invert the fire
extinguisher permitting the contents of the two
chambers to mix, and flow from the hose.
(3)
Refilling and Maintenance.
For
detailed instructions on refilling and maintenance, refer
to TM 5-687 and TM 9-1799.
30
CHAPTER 3
OPERATOR AND ORGANIZATIONAL MAINTENANCE INSTRUCTIONS
Section I. OPERATOR AND ORGANIZATIONAL MAINTENANCE TOOLS AND EQUIPMENT
30. Special Tools or Equipment
31. Basic Issue Tools and Equipment
There are no special tools or equipment used by
the operator or by organizational maintenance personnel
for performing maintenance on the fire truck.
Tools and repair parts issued with or authorized
for the fire truck are listed in the basic issue items list,
appendix III.
Section II. LUBRICATION
32. General Lubrication Information
a.
This section contains a reproduction of the
lubrication order and lubrication instructions which are
supplemental to and are not specifically covered in the
lubrication order.
b.
The lubrication order, shown on figure 18, is
an exact reproduction of the approved lubrication order
for the fire truck. Refer to LO 9-2320-235-12 for
lubrication of the fire truck engine and chassis. For the
current lubrication order, refer to DA Pam 310-4.
33. Detailed Lubrication Information
a.
General. Refer to LO 9-2320-235-12 for
additional detailed lubrication information.
TAGO 6839A
b.
Care of Lubricants. Store lubricants in
covered containers that will protect them from dirt,
water, and foreign material.
Keep all lubrication
equipment clean and ready for use.
c.
Cleaning. Clean all points of lubrication with
an approved cleaning solvent before lubricating.
d.
Points of Application.
Follow the
instructions and apply the lubricants as prescribed. It is
recommended that the fire truck and each of the
components be lubricated while warm from operation.
Over lubrication may cause equipment failure, damage
to working parts, and erratic operation.
e.
Operation after Lubrication. Operate the fire
truck engine for 5 minutes after hanging oil and
lubricating.
31
Figure 18. Lubrication order.
TAGO 6839A
32
Figure 18-Continued.
TAGO 6839A
33
Figure 18-Continued.
TAGO 6839A
34
Section III. PREVENTIVE MAINTENANCE SERVICES
34. General
35. Daily Preventive Maintenance Services
To insure that the fire truck is ready for operation
at all times, it must be inspected systematically, so that
defects may be discovered and corrected before they
result in serious damage or failure. The necessary
preventive maintenance services to be performed are
listed and described in paragraphs 35 and 36. The item
numbers indicate the sequence of minimum inspection
requirements. Defects discovered during operation of
the unit will be noted for future correction, to be made as
soon as operation has ceased.
Stop operation
immediately if a deficiency is noted during operation
which would damage the fire truck if operation were
continued. All deficiencies and shortcomings will be
recorded, together with the corrective action taken, on
DA Form 2404 at the earliest possible opportunity.
This paragraph contains an illustrated tabulated
listing of preventive maintenance services which must
l)e performed by the operator. The item numbers are
listed consecutively and indicate the sequence of
minimum requirements. Refer to figure 19 for the daily
preventive maintenance services.
TAGO 6839A
36. Quarterly Preventive Maintenance Services
a.
This paragraph contains an illustrated
tabulated listing of preventive maintenance services
which must be performed by organizational
maintenance personnel at quarterly intervals.
A
quarterly interval is equal to 3 calendar months or 250
hours of operation, whichever occurs first.
b.
The item numbers are listed consecutively
and indicate the sequence of minimum requirements.
Refer to figure 20 for quarterly preventive maintenance
services.
35
Figure 19. Daily preventive maintenance services.
TAGO 6839A
36
Figure 19-Continued.
TAGO 6839A
37
Figure 20. Quarterly preventive maintenance services.
TAGO 6839A
38
Figure 20-Continued.
TAGO 6839A
39
Figure 20-Continued.
TAGO 6839A
40
Section IV. TROUBLESHOOTING
37. General
41. Water Pump Vibrates or Becomes Noisy
This section provides information useful in
diagnosing and correcting unsatisfactory operation or
failure of the fire truck and its components. Each
trouble symptom stated is followed by a list of probable
causes of the trouble.
The possible remedy
recommended is described opposite the probable cause.
Any trouble beyond the scope of organizational
maintenance will be reported to direct support
maintenance.
38. Water Pump Capacity Drops
Probable cause
Speed too low.
Water pump loses prime.
Fire truck too high to permit pump suction.
Water lines loose or defective.
39.
42.
Adjust throttle.
Clean dirty or replace dam
aged water line suction
screens.
Check for air
leaks. Submerge suction
at deeper supply point.
Reprime pump (para. 18).
Change position of fire
truck.
Tighten or replace lines.
Possible remedy
Positive suction lacking.
Inspect for air leaks in the
suction lines or at the
suction hose strainer when
pumping from draft. See
that suction hose is 2 feet
below surface of open
water. Reprime (para. 18).
Lift required beyond pumps Draw supply from different
capacity.
source or change position
of fire truck.
Water discharge valve
Open water discharge valve.
closed.
Discharge head requires
Increase engine speed.
higher pump speed.
40.
Pump Clutch Lever Is Hard or Impossible to
Engage
Probable cause
Possible remedy
Improper linkage or clutch
Adjust clutch or linkages as
adjustment.
necessary (para. 126).
Disconnected, worn, or bent Connect, repair, or replace
linkage.
faulty parts (para. 126).
Foam Pump Fails To Deliver Adequate Foam
Discharge
Probable cause
Possible remedy
Foam concentrate supply is Refill foam tank (para. 18):
exhausted.
Foam concentrate tank
Open valve (para. 18).
valve is in closed position.
Improperly adjusted foam
Adjust foam proportion
proportion regulating
regulating valve (para.
valve.
19).
43. Foam Does Not Have Proper Characteristics For
Effective Use
Probable cause
Improperly adjusted foam
proportion regulating
valve.
Change in characteristics of
water regarding mineral
content,
Improper nozzle.
Foam concentrate liquid
supply is diluted or
contaminated.
44.
Possible remedy
Adjust foam proportion
regulating valve (para. 19).
Adjust foam proportion
regulating valve to
components (para. 19).
Change nozzle.
Drain and flush foam system
Fill with concentrate
of proper quality (para. 20).
Hose Reel Assemblies Stick and Bind When
Reeling or Unreeling Hose
Probable cause
Possible remedy
Insufficient lubrication of
Lubricate as specified in
hose reel shaft bearings or LO 5-4210-205-12 and
badly worn bearings.
replace a badly worn bear
ing.
Report to direct,
general support, and depot
maintenance.
Hose reel assemblies
Replace hose reel (para.
damaged or defective.
123).
45. Hose Reel Assemblies Inoperative
Probable cause
Motor solenoid relay
defective.
Hose reel switch defective.
Hose reel assemblies
Damaged or defective.
TAGO 6839A
Possible remedy
Check suction pressure.
Relocate suction strainers
when pumping from draft.
Reprime the pump (para.
18).
Pump vapor bound and not Temporarily reduce speed
fully loaded.
or partially close discharge
valve.
Possible remedy
Water Pump Fails To Deliver Water Upon
Starting
Probable cause
Probable cause
Cavitation occurring.
41
Possible remedy
Replace relay (para. 103).
Replace switch (para. 102).
Replace hose reel (para.
123).
Hose reel motor defective.
Tighten
loose
wiring
connections.
Replace
defective motor (para.
104).
46. Siren Inoperative
Probable cause
Possible remedy
Wiring defective.
Tighten loose connections
and replace wiring as
necessary (para. 80).
Siren hand switch defective. Replace
defective
hand
switch (para. 94).
Defective siren.
Replace or repair defective
siren (para. 82).
47.
Spotlight, Floodlights or Warning Lights
Inoperative
Probable cause
Possible remedy
Wiring defective.
Tighten loose connections
and replace wiring as
necessary (para. 80).
Beacon warning light switch Replace defective beacon
defective.
warning light switch (para.
91).
Rear floodlight defective.
Replace defective rear floodBeacon warning light defeclight (para. 108).
tive.
Replace or repair defective
beacon warning light (para.
84).
Spotlight defective.
Replace defective spotlight
(para. 83).
Section V. FIELD EXPEDIENT REPAIRS
49. Transfer Case Lever Disengages
48. Field Expedient Repairs
Organizational maintenance troubles may occur
while the Ward Lafrance Model M44A1WLF Fire Truck
is operating in the field where supplies and repair parts
are not available and normal corrective action cannot be
performed. When this condition exists, the following
expedient repairs may be used in emergencies, upon
the decision of the unit commander. Equipment so
repaired must be removed from operation as soon as
possible and properly repaired before being placed in
operation again.
Trouble
Expedient remedy
Control lever will not stay in Wedge, block, or tie the
desired position.
control lever in the desired
position.
50. Loss of Water or Foam
Trouble
Hole in water or foam tank.
Expedient remedy
Plug hole with wooden plug
or metal screw.
Section VI. RADIO INTERFERENCE SUPPRESSION
51. General Methods Used To Attain Suppression
Essentially, suppression is attained by providing a
low resistance path to ground for stray currents. The
methods used include shielding the ignition and highfrequency wires, grounding the frame with bonding
straps, and using capacitors and resistors. For general
information on radio interference suppression, see TM
11-483.
52. Interference Suppression Components
a.
are illustrated on figure 21.
(2)
Ground strap. The unit has four
ground straps, two from chassis to frame and one each
located on the frame to hose motor assemblies. The
ground straps are illustrated on figure 21.
(3)
Secondary Suppression Components.
Tooth-type lockwashers are used to assure good metalto-metal contact where electrical components are
mounted.
53. Replacement of Suppression Components
Primary Suppression Components.
(1)
Capacitors.. The fire truck has four
capacitors locate(l on the turn signal flasher, siren, siren
flasher, and beacon warning light. The capacitors
TAGO 6839A
a.
Primary Suppression Components. Replace
ratio interference components with new components
42
Figure 21. Radio interference suppression components.
TAGO 6839A
43
1
2
3
4
5
A
Screw, machine, 10-32 x 1/4 in.
Washer, lock, ET, 1/4 in.
Screw, machine, 10 32 x 1/4 in.
Washer, lock, ET, 1/4 in.
Capacitor, 1.0-50v
Turn signal flasher capacitor
1
Screw, machine, 8-32 x 1/4 in. (2 rqr)
2
Capacitor, 25 mfd-100 vdc-20 amp
B-Beacon warning light capacitor
1
Screw, machine, 8-32 x 1/4 in. (2 rqr)
2
Capacitor, 0.1-100 dc
C-Siren-light flasher capacitor
1
Screw, cap, 3/8-16 x 1 in.
2
Washer, lock, ET, 3/8 in.
3
Ground strap (2 rqr)
4
Nut, 3/8-16
D-Hose reel to hose reel motor ground strap
Figure 21-Continued.
that are identical. Capacitors must be the same size
and have the same rating as the parts being replaced. It
is essential that a good-metal-to-metal contact is
achieved to maintain proper radio interference
suppression. To correct faulty suppression, substitute
new interference suppression components until the
faulty components are discovered.
Remove the
capacitors and ground straps in the numerical sequence
as illustrated on figure 21.
b. Secondary Suppression Component. Remove
tooth-type lockwashers. If proper suppression is to be
obtained, it is necessary that good metal-to-metal
contact is made by tightening the mounting hardware
employing tooth-type lockwashers.
54.
Testing of Radio Interference Suppression
Components
Test the capacitors for leaks and shorts on a
capacitor tester; replace defective capacitors. If test
equipment is not available and interference is indicated,
isolate the cause of interference by the trial-and-error
method of replacing each capacitor in turn until the
cause of interference is located and eliminated.
1
2
3
Screw, cap, 7 7/16-20 x 1 in.
4
Screw, cap, 7/16-20 x 1 in.
Washer, flat, 7/16 in.
5
Washer, flat 7/16 in.
Ground strap (2 rqr)
E - Pump compartment to chassis frame ground strap
Figure 21--Continued.
Section VII. RETAINERS, STEPS, TOOL BOX DOOR, GUARDS, HOSE BED ASSEMBLIES, AND LADDER
SUPPORT ASSEMBLIES
brackets are mounted on the rear step. Folding steps
are mounted at the front of the hose reel compartments
and at the rear of the fire truck. A handrail is mounted
on the rear of the fire truck and splash guards are
mounted on each side of the fire truck below the
instrument panels. The tool box door is mounted to the
rear step between the fire extinguisher brackets. The
hose bed partition is located on top of the fire truck
water tank and divides the hose compartment into
55. General
The hose retainer mounted on the right rear of the fire
truck provides a means of locking the hoses, inside the
hose compartment. A retainer and bracket provides a
means for mounting two foam applicator tubes. Two
shovel buckets are located on the left rear of the fire
truck. The ladder brackets are mounted on the top front
of the left side compartments. Two fire extinguishers
TAGO 6839A
44
Figure 22. Hose bed assemblies, handrails, rear step, tool box door, and brackets, removal and installation.
TAGO 6839A
45
two parts. The two hose bed assemblies, which are
constructed of wood slats, lay on top of the water tank.
The three ladder support assemblies are attached to the
sides of and extend above the right and left
compartment assemblies.
(3) Replace or repair damaged or defective
parts as necessary.
c. Installation. Refer to figure 22, and install the
fire extinguisher bracket on the rear step.
60. Tool Box Door
a. Removal. Refer to figure 22, and remove the
tool box door from the rear step.
b. Cleaning, Inspection, and Repair.
(1) Clean all parts with an approved cleaning
solvent, and dry thoroughly.
12) Inspect all parts for damaged or defective
condition.
(3) Replace or repair damaged or defective
parts as necessary.
c. Installation. Refer to figure 22, and install the
tool box door on the rear step.
56. Hose Bed Assemblies
a. Removal. Refer to figure 22, and remove the
hose bed assemblies from the water tank.
b. Cleaning, Inspection, and Repair.
(1) Clean all parts in an approved cleaning
solvent, and dry thoroughly.
(2) Inspect all parts for damaged or defective
condition.
(3) Replace or repair damaged or defective
parts as necessary.
c. Installation. Refer to figure 22, and install the
hose bed assemblies on the water tank.
61. Rear Step
a. Removal.
(1) Remove the fire extinguisher bracket (para.
59).
(2) Remove the side handrails and panels (para.
58).
(3) Refer to figure 22, and remove the rear step
from the special purpose body.
b. Cleaning, Inspection, and Repair.
(1) Clean all parts with an approved cleaning
solvent, and dry thoroughly.
(2) Inspect all parts for damaged or defective
condition.
(3) Replace or repair damaged or defective
parts as necessary.
c. Installation.
(1) Refer to figure 22, and install the rear step
on the special purpose body.
(2) Install the side handrails and panels (para.
58).
(3) Install the fire extinguisher bracket (para.
59)
57. Hose Bed Partition
a. Removal. Refer to figure 22, and remove the
hose bed partition from the water tank.
b. Cleaning, Inspection, and Repair.
(1) Clean all parts with an approved cleaning
solvent, and dry thoroughly.
(2) Inspect all parts for damaged or defective
condition.
(3) Replace or repair damaged or defective
parts as necessary.
c. Installation. Refer to figure 22, and install the
hose bed partition on the water tank.
58. Handrails and Brackets
a. Removal. Refer to figure 22, and remove the
handrails and brackets from the special purpose body.
b. Cleaning, Inspection, and Repair.
(1) Clean all parts with an approved cleaning
solvent, and dry thoroughly.
(2) Inspect all parts for damaged or defective
condition.
(3) Replace or repair damaged or defective
parts as necessary.
c. Installation. Refer to figure 22, and install the
handrails and brackets on the special purpose body.
62. Shovel Brackets
a. Removal. Refer to figure 22, and remove the
shovel brackets from the apron.
b. Cleaning, Inspection, and Repair.
(1) Clean all parts with an approved cleaning
solvent, and dry thoroughly.
(2) Inspect all parts for damaged or defective
condition.
(3) Replace or repair damaged or defective
parts as necessary.
59. Fire Extinguisher Bracket
a. Removal. Refer to figure 22, and remove the
fire extinguisher bracket from the rear step.
b. Cleaning, Inspection, and Repair.
(1) Clean all parts with an approved cleaning
solvent, and dry thoroughly.
(2) Inspect all parts for damaged or defective
condition.
TAGO 6839A
46
c. Installation. Refer to figure 22, and install the
shovel brackets on the apron.
b. Cleaning, Inspection, and Repair.
(1) Clean all parts with an approved cleaning
solvent, and dry thoroughly.
(2) Inspect all parts for damaged or defective
condition.
(3) Replace or repair damaged or defective
parts as necessary.
c. Installation. Refer to figure 23, and install the
foam nozzle retainer on the apron.
63. Ladder Support Assemblies
a. Removal. Refer to figure 23, and remove the
ladder support assemblies from the special purpose
body.
b. Cleaning, Inspection, and Repair.
(1) Clean all parts with an approved cleaning
solvent, and dry thoroughly.
(2) Inspect all parts for damaged or defective
condition.
(3) Replace or repair damaged or defective
parts as necessary.
c. Installation. Refer to figure 23, and install the
ladder support assemblies on the special purpose body.
65. Hose Retainer
a. Removal. Refer to figure 23, and remove the
hose retainer from the apron.
b. Cleaning, Inspection, and Repair.
(1) Clean all parts with an approved cleaning
solvent, and dry thoroughly.
(2) Inspect all parts for damaged or defective
condition.
64. Foam Nozzle Retainer
a. Removal. Refer to figure 23, and remove the
foam nozzle retainer from the apron.
Figure 23. Ladder support assemblies, retainers and fill door, removal and installation.
TAGO 6839A
47
Figure 22-Continued.
TAGO 6839A
48
(3) Replace or repair damaged or defective
parts as necessary.
c. Installation. Refer to figure 23, and install the
hose retainer on the apron.
(3) Replace or repair damaged or defective
parts as necessary.
c. Installation. Refer to figure 23, and install the
folding steps on the special purpose body.
66. Folding Steps
a. Removal. Refer to figure 23, and remove the
folding steps from the special purpose body.
67. Splash Guards
a. Removal. Refer to figure 24, and remove the
splash guard from the truck chassis.
b. Cleaning, Inspection, and Repair.
(1) Clean all parts with an approved cleaning
solvent, and dry thoroughly.
(2) Inspect all parts for damaged or defective
condition.
(3) Replace or repair damaged or defective
parts as necessary.
c. Installation. Refer to figure 24, and install the
splash guards on the truck chassis.
NOTE
Remove folding steps from pump
and hose reel compartment in a
similar manner.
b. Cleaning, Inspection, and Repair.
(1) Clean all parts with an approved cleaning
solvent, and dry thoroughly.
(2) Inspect all parts for damaged or defective
condition.
A-Right splash guard
B-Left splash guard
Figure 24. Splash guards, removal and installation.
TAGO 6839A
49
Section VIII. COMPARTMENT ACCESSORY DOORS, BATTERY BOX,
AND OIL PAN HEATER ADAPTER
axe, bars, cutters, and compartment accessories
brackets from the compartment.
b. Cleaning, Inspection, and Repair.
(1) Clean all parts with an approved cleaning
solvent, and dry thoroughly.
(2) Inspect all parts for damaged or defective
condition.
(3) Replace or repair damaged or defective
parts as necessary.
c. Installation. Refer to figure 25, and install the
axe, bars, and cutter accessories brackets on the
compartment.
68. General
The compartment accessories are brackets and
mounting devices used to secure the fire fighting
equipment and accessories such as first aid kits, hose
nozzles, axes and fire extinguishers in the designed
compartments along the right and left side of the fire
truck. Each compartment is provided with a hinged
door. The battery box is located on the right front cab
step and houses two 12-volt batteries. The oil pan
heater adapter is mounted under the oil pan.
69. Axe, Bars, Cutter, Compartment Accessories
Brackets
a. Removal. Refer to figure 25, and remove the
Figure 25. Axe, bars, cutter compartment accessory
brackets, removal and installation.
Figure 26. Extinguisher compartment accessories,
removal and installation
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Figure 27. First aid bracket, hand lantern bracket, and fittings, removal and installation.
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Figure 28. Pump and hose reel compartment door assemblies, removal and installation.
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Figure 28 - Continued
70. Extinguisher Compartment Accessories
a. Removal. Refer to figure 26, and remove the
extinguisher compartment accessories from the
compartment.
b. Cleaning, Inspection, and Repair.
(1) Clean all parts with an approved cleaning
solvent, and dry thoroughly.
(2) Inspect all parts for damaged or defective
condition.
(3) Replace or repair damaged or defective
parts as necessary.
c. Installation. Refer to figure 26, and install the
extinguisher
compartment
accessories
on
the
compartment.
the first aid bracket, hand lantern bracket, and fittings
from the compartment.
b. Cleaning, Inspection, and Repair.
(1) Clean all parts with an approved cleaning
solvent, and dry thoroughly.
(2) Inspect all parts for damaged or defective
condition.
(3) Replace or repair damaged or defective
parts as necessary.
c. Installation. Refer to figure 27, and install the
first aid bracket, hand lantern bracket, and fittings from
the compartment.
72. Pump and Hose Reel Compartment Door
Assemblies
71. First Aid Bracket, Hand Lantern Bracket, and
Fitting Compartment
a.
Removal. Refer to figure 27, and remove
a. Removal. Refer to figure 28, and remove the
doors from the compartment as necessary.
53
73. Oil Pan Heater Adapter
a. Removal. Refer to figure 29, and remove the oil
pan heater adapter from the engine oil pan.
b. Cleaning, Inspection, and Repair.
(1) Clean all parts with an approved cleaning
solvent, and dry thoroughly.
(2) Inspect all parts for damaged or defective
condition.
(3) Replace or repair damaged or defective
parts as necessary.
c. Installation. Refer to figure 29, and install the oil
pan heater adapter on the engine oil pan.
74. Battery Box
a. Removal. Refer to figure 30, and remove the
battery box from the truck chassis.
b. Disassembly.
Refer to figure 31, and
disassemble the battery box.
c. Cleaning, Inspection, and Repair.
(1) Clean all parts with an approved cleaning
solvent, and dry thoroughly.
(2) Inspect all parts for damaged or defective
condition.
(3) Replace or repair damaged or defective
parts.
d. Reassembly.
Refer to figure 31, and
reassemble the battery box in the reverse order.
e. Installation. Refer to figure 30, and install the
battery box on the truck chassis.
Figure 29. Oil pan heater adapter, removal and
installation.
b. Cleaning, Inspection, and Repair.
(1) Clean all parts with an approved cleaning
solvent, and dry thoroughly.
(2) Inspect all parts for damaged or defective
condition.
(3) Replace or repair damaged or defective
parts as necessary.
c. Installation. Refer to figure 28, and install the
pump and hose reel compartment door assemblies on
the compartments as necessary.
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Figure 30. Battery box, removal and installation.
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Figure 31. Battery box, exploded view.
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Section IX. FUEL SYSTEM
of the left pump operator's control panel. It provides
means of changing engine speed other than by use of
controls in the cab.
75. General
The fuel system consists of a manually operated
throttle control that is located on the lower left side area
A-Engine disconnect points
B--Control panel disconnect points
Figure 32. Throttle control and linkage, removal and installation.
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76. Throttle Control and Linkage
a. Removal. Refer to figure 32, and remove the
throttle control and linkage from the engine and
instrument panel.
b. Cleaning, Inspection, and Repair.
(1) Clean all parts with a clean cloth
dampened in an approved cleaning solvent, and dry
thoroughly.
(2) Inspect all parts for damaged or defective
condition.
(3) Replace or repair damaged or defective
parts as necessary.
c. Installation. Refer to figure 32, and install the
throttle control and linkage on the engine and instrument
panel.
Section X. AIR SYSTEM
tubing which connect the air brake system to the air
tanks.
77. General
This section consists of the various fittings and
Figure 33. Air tank tubing and fittings, removal and installation.
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78. Air Tank Tubing and Fittings
a. Removal. Refer to figure 33, and remove the
air tank tubing and fittings from the unit.
b. Cleaning, Inspection, and Repair.
(1) Clean all parts with an approved cleaning
solvent, and dry thoroughly.
(2) Inspect all parts for damaged or defective
condition.
(3) Replace or repair damaged or defective
parts as necessary.
c. Installation. Refer to figure 33, and install the
air tank tubing and fittings on the unit.
Section XI. ELECTRICAL SYSTEM
lights have waterproof, seal-beam-type lamps. A flasher
assembly mounted behind the cab instrument panel
functions to interrupt the circuit to the directional light
assemblies. A dome light mounted above the left side
control panel furnishes illumination for pump operating
controls. A temperature warning light, oil pressure
warning light, and two panel lights are mounted in the
instrument panel on the left side. Two underhood lights
79. General
The electrical system consists of two spotlights,
one mounted on each of the windshield posts, two rear
flood headlights mounted on the rear of the fire truck,
two front and two directional lights and an electric siren
mounted on the left front fender, rotating beacon
warning light mounted on the top of the cab. These
Figure 84. Front directional lights, removal and installation.
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mounted on each side of the front of the radiator furnish
illumination for the engine. Two motor solenoid relays
and motors. one mounted on each hose reel assembly
and one motor solenoid and motor mounted on the
priming pump serve to furnish power for the priming
pump and hose reels. There are two battery charging
receptacles located at the rear of the unit above the
apron. The temperature and oil pressure sending units
are mounted on the engine.
Refer to TM 9-2320-235-10 for the chassis and engine
electrical components.
80. Wiring
a. General. When testing, repairing, or replacing
the wiring, refer to wiring diagram (fig. 3).
b. Testing.
Test a wire for continuity by
disconnecting each end from the component or
components to which it is connected. Touch the test
probes of a multimeter to each end of the wire. If
continuity is not indicated, the wire is defective and must
be repaired or replaced.
c. Repair. Shave the insulation on the wire at both
ends of the break and twist the bare wires together and
solder the connection. Cover the repaired breaks with
electrical tape and friction tape.
If a terminal breaks off a wire, replace it, using a like
terminal.
d. Replacement. Replace a wire by disconnecting
it from the component or components and remove the
wire. Install a new wire and connect it. If a broken wire
is part of a wiring harness, disconnect the wire and tape
the ends. Install a new wire and attach it to the outside
of the wiring harness.
Figure 35. Siren and flasher light, removal and
installation.
c. Installation. Refer to figure 34, and install the
front directional lights on the fire truck fenders.
82. Siren and Flasher Light
a. Removal. Refer to figure 35, and remove the
siren and flasher light from the fire truck fender.
b. Disassembly.
Refer to figure 36.
and
disassemble the siren and flasher light.
c. Cleaning, Inspection., and Repair.
(1) Clean all parts with a clean cloth
dampened in an approved cleaning
solvent, and dry thoroughly.
(2) Inspect all parts for damaged or defective
condition.
(3) Replace or repair damaged or defective
parts as necessary.
d. Reassembly.
Refer to figure 36.
and
reassemble the siren and flasher light in the reverse
order.
c. Installation. Refer to figure 3.5, an(i install the
siren and flasher light on the fire truck fender.
81. Front Directional Light Assembly
a. Removal. Refer to figure 34, and remove the
front directional light assembly from the fire truck
fenders.
b. Cleaning, Inspection, and Repair.
(1) Clean all parts with a clean cloth
dampened in an approved cleaning
solvent, and dry thoroughly.
(2) Inspect lens, gasket for damaged or
defective condition.
(3) Inspect lamp for cracks, breaks, or burned
out condition.
(4) Replace or repair damage(d or defective
parts as necessary.
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Figure 36. Siren and flasher light, exploded view.
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Figure 37. Spotlight, removal and installation.
83. Spotlight
a. Removal. Refer to figure 37, and remove the
spotlight from the fire truck cab.
b. Cleaning, Inspection, and Repair.
84. Beacon Warning Light
a. Removal. Refer to figure 38, and remove the
beacon warning light from the fire truck.
b. Disassembly.
Refer to figure
disassemble the beacon warning light.
(1) Clean all parts with a clean cloth
dampened in an approved cleaning
solvent, and dry thoroughly.
(2) Inspect door gasket and body for
damaged or defective condition.
(3) Inspect lamp for cracks, breaks, or burned
out condition.
(4) Replace or repair damaged or defective
parts as necessary.
and
c. Cleaning, Inspection, and Repair.
(1) Clean all parts with a clean cloth
dampened in an approved cleaning solvent, and dry
thoroughly.
(2) Inspect all parts for damaged or defective
condition.
(3) Replace or repair damaged or defective
parts as necessary.
c. Installation. Refer to figure 37, and install the
spotlight on the fire truck cab.
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d. Reassembly. Refer to figure 39, and reassemble
the beacon warning light in the reverse order.
62
(4) Inspect lamps for cracks, breaks, or
burned out condition.
c. Installation. Refer to figure 40, and install the
underhood lights on the fire truck radiator mounting
bracket.
86. Siren Solenoid Relay
a. Removal. Refer to figure 41, and remove the
siren solenoid relay from the engine compartment.
b. Cleaning, Inspection, and Repair.
(1) Clean all parts with a clean cloth
dampened in an approved cleaning
solvent, and dry thoroughly.
(2) Inspect all parts for damaged or defective
condition.
(3) Replace or repair damage( or defective
parts as necessary.
c. Installation. Refer to figure 41, and install the
siren solenoid relay on the engine compartment.
87. Engine Oil Pressure Sending Unit
a. Removal. Refer to figure 42, and remove the
engine oil pressure sending unit from the engine.
b. Cleaning, Inspection, and Repair.
(1) Clean all parts with a clean cloth
dampened in an approved cleaning
solvent, and dry thoroughly.
(2) Inspect all parts for damaged or defective
condition.
(3) Replace or repair damaged or defective
l)arts as necessary.
Figure 38. Beacon warning light, removal and
installation.
c. Installation. Refer to figure 42, and install the
engine oil pressure sending unit on the engine.
e. Installation. Refer to figure 38, and install the
beacon warning light on the fire truck cab.
88. Engine Temperature Sending Unit
a. Removal. Refer to figure 43, and remove the
engine temperature sending unit form the engine
85. Underhood Lights
b. Cleaning, Inspection, and Repair.
(1) Clean all parts with a clean cloth
dampened in a n approved cleaning
solvent, and dry thoroughly.
(2) Inspect all parts for damaged or defective
condition.
(3) Replace or repair damaged or defective
parts as necessary.
a. Removal. Refer to figure 40, and remove the
underhood lights from the fire truck radiator mounting
bracket.
b. Cleaning, Inspection, and Repair
(1) Clean all parts with a clean cloth
dampened in an approved cleaning
solvent and dry thoroughly.
(2) Inspect body for damaged or defective
condition.
(3) Replace or repair damaged or defective
parts as necessary.
c. Installation. Refer to figure 43, and install the
engine temperature sending unit on the engine.
63
Figure 39. Beacon warning light, exploded view.
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64
Figure 40. Underhood lights, removal and
installation.
89. Flasher Assembly
a. Removal. Refer to figure 44, and remove the
flasher assembly from the fire truck control panel.
Figure 41. Siren solenoid relay, removal and
installation.
b. Cleaning, Inspection, and Repair.
(1) Clean all parts with a clean cloth
dampened in an approve(d cleaning
solvent, and dry thoroughly.
(2) Inspect all parts for damaged or defective
condition.
(3) Replace or repair damaged or defective
parts as necessary.
c. Installation. Refer to figure 44, and install the
flasher assembly on the fire truck control panel.
c. Installation. Refer to figure 45, and install the
circuit breakers on the cab fire wall.
91. Beacon Warning Light Switch
a. Removal. Refer to figure 46, and remove the
beacon warning light switch from the instrument panel.
b. Cleaning, Inspection, and repair.
(1) Clean all parts with a clean cloth
dampened in an approved cleaning
solvent, and dry thoroughly.
(2) Inspect all parts for damaged or defective
condition.
(3) Replace or repair damaged or defective
parts as necessary.
c. Installation. Refer to figure 46, and install the
siren light switch on the instrument Panel.
90. Circuit Breakers
a. Removal. Refer to figure 45, and remove the
circuit breakers from the cab fire wall.
b. Cleaning, Inspection, and Repair.
(1) Clean all parts with a clean cloth
dampened in an approved cleaning
solvent, and dry thoroughly.
(2) Inspect all parts for damaged or defective
condition.
(3) Replace or repair damaged or defective
parts as necessary.
92. Siren Light Switch
a. Removal Refer to figure 46, and remove the
siren light switch from the instrument panel.
65
Figure 42. Engine oil pressure sending unit, removal and installation.
(2) Inspect all parts for damaged or defective
condition.
(3) Replace or repair damaged or defective
parts as necessary.
b. Cleaning, Inspection, and repair.
(1) Clean all parts with a clean cloth
dampened in an approved cleaning
solvent, and dry thoroughly.
(2) Inspect all parts for damaged or defective
condition.
(3) Replace or repair damaged or defective
parts as necessary.
c. Installation. Refer to figure 46, and remove the
siren light switch from the instrument. Panel.
94. Siren Hand Switch
a. Removal. Refer to figure 46, and remove the
beacon warning light switch from the instrument panel.
c. Installation. Refer to figure 46, and remove the
siren light switch from the instrument panel.
b. Cleaning, Inspection, and repair.
(1) Clean all parts with a clean cloth
dampened in an approved cleaning
solvent, and dry thoroughly.
(2) Inspect all parts for damaged or defective
condition.
(3) Replace or repair damaged or defective
parts as necessary.
93. Turn Signal Switch
a. Removal. Refer to figure 46, and remove the
beacon warning light switch from the instrument panel.
b. Cleaning, Inspection, and repair.
(1) Clean all parts with a clean cloth
dampened in an approved cleaning
solvent, and dry thoroughly.
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Figure 43. Engine temperature sending unit,
removal and installation.
c. Installation. Refer to figure 46, and install the
siren light switch on the steering column.
95. Siren Foot Switch
Figure 44. Flasher assembly, removal and
installation.
a. Removal. Refer to figure 47, and remove the
beacon warning light switch from the instrument panel.
b. Cleaning, Inspection, and repair.
(1) Clean all parts with a clean cloth
dampened in an approved cleaning
solvent, and dry thoroughly.
(2) Inspect all parts for damaged or defective
condition.
(3) Replace or repair damaged or defective
parts as necessary.
96. Pump Gage Panel Warning Light
a. Removal. Refer to figure 48, and remove the pump
gage panel warning light from the pump gage panel.
b. Cleaning, Inspection, and Repair.
(1) Clean all parts with a clean cloth
dampened in an approved cleaning
solvent, and dry thoroughly.
(2) Inspect all parts for damaged or defective
condition.
(3) Inspect lamp for cracks, breaks, or burned
out condition.
(4) Replace or repair damaged or defective
parts as necessary.
c. Installation. Refer to figure 47, and remove the
siren light switch from the instrument. Panel.
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Figure 45. Circuit breakers, removal and installation.
c. Installation. Refer to figure 48, and install the
pump gage panel warning light on the pump gage panel.
c. Installation. Refer to figure 48, and install the
pump gage panel warning light on the pump gage panel.
97. Pump Gage Panel Light
98. Dome Light
a. Removal. Refer to figure 48, and remove the pump
gage panel warning light from the pump gage panel.
a. Removal. Refer to figure 49, and remove the
dome light from the special purpose body.
b. Cleaning, Inspection, and Repair.
(1) Clean all parts with a clean cloth
dampened in an approved cleaning
solvent, and dry thoroughly.
(2) Inspect all parts for damaged or defective
condition.
(3) Inspect lamp for cracks, breaks, or burned
out condition.
(4) Replace or repair damaged or defective
parts as necessary.
b. Cleaning, Inspection, and Repair.
(1) Clean all parts with a clean cloth
dampened in an approved cleaning
solvent, and dry thoroughly.
(2) Inspect all parts for damaged or defective
condition.
(3) Inspect lamp for cracks, breaks, or burned
out condition.
(4) Replace or repair damaged or defective
parts as necessary.
c. Installation. Refer to figure 49, and install the
dome light on the special purpose body.
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Figure 46. Beacon warning light switch and siren light switch, removal and installation.
b. Cleaning, Inspection, and Repair.
(1) Clean all parts with a clean cloth
dampened in an approved cleaning
solvent, and dry thoroughly.
(2) Inspect all parts for damaged or defective
condition.
(3) Inspect lamp for cracks, breaks, or burned
out condition.
(4) Replace or repair damaged or defective
parts as necessary.
99. Dome Light Switch
a. Removal. Refer to figure 49, and remove the
dome light switch from the instrument panel.
b. Cleaning, Inspection, and Repair.
(1) Clean all parts with a clean cloth
dampened in an approved cleaning
solvent, and dry thoroughly.
(2) Inspect all parts for damaged or defective
condition.
(3) Inspect lamp for cracks, breaks, or burned
out condition.
(4) Replace or repair damaged or defective
parts as necessary.
c. Installation. Refer to figure 49, and install the
pump gage panel light switch on the instrument panel.
101. Engine Light Switch
a. Removal. Refer to figure 49, and remove the
engine light switch from the instrument panel.
c. Installation. Refer to figure 49, and install the
dome light on the instrument panel.
b. Cleaning, Inspection, and Repair.
100. Pump Gage Panel Light Switch
a. Removal. Refer to figure 49, and remove the
pump gage panel light from the instrument panel.
69
c. Installation. Refer to figure 49, and install the
hose reel switch on the instrument panel.
103. Hose Reel Motor Solenoid Relay
a. Removal. Refer to figure 50, and remove the
hose reel motor solenoid relay from the hose reel.
b. Cleaning, Inspection, and Repair.
(1) Clean all parts with a clean cloth
dampened in an approved cleaning
solvent, and dry thoroughly.
(2) Inspect all parts for damaged or defective
condition.
(3) Inspect lamp for cracks, breaks, or burned
out condition.
(4) Replace or repair damaged or defective
parts as necessary.
c. Installation. Refer to figure 50, and install the
hose reel motor solenoid relay on the hose reel.
104. Hose Reel Motor
a. Removal. Refer to figure 50, and remove the
hose reel motor from the hose reel.
b. Cleaning, Inspection, and Repair.
(1) Clean all parts with a clean cloth
dampened in an approved cleaning
solvent, and dry thoroughly.
(2) Inspect all parts for damaged or defective
condition.
(3) Inspect lamp for cracks, breaks, or burned
out condition.
(4) Replace or repair damaged or defective
parts as necessary.
c. Installation. Refer to figure 50, and install the
hose reel motor on the hose reel.
Figure 47. Siren foot switch, removal and
installation.
(1) Clean all parts with a clean cloth
dampened in an approved cleaning
solvent, and dry thoroughly.
(2) Inspect all parts for damaged or defective
condition.
(3) Replace or repair damaged or defective
parts as necessary.
c. Installation. Refer to figure 49, and install the
engine light switch on the instrument panel.
105. Primer Pump Motor Solenoid Relay
a. Removal. Refer to figure 51, and remove the
primer pump motor solenoid relay from the primer
pump.
102. Hose Reel Switch
a. Removal. Refer to figure 49, and remove the
hose reel switch from the instrument panel.
b. Cleaning, Inspection, and Repair.
(1) Clean all parts with a clean cloth
dampened in an approved cleaning
solvent, and dry thoroughly.
(2) Inspect all parts for damaged or defective
condition.
(3) Inspect lamp for cracks, breaks, or burned
out condition.
(4) Replace or repair damaged or defective
parts as necessary.
c. Installation. Refer to figure 51, and install the
primer pump motor solenoid relay on the primer pump.
b. Cleaning, Inspection, and Repair.
(1) Clean all parts with a clean cloth
dampened in an approved cleaning
solvent, and dry thoroughly.
(2) Inspect all parts for damaged or defective
condition.
(3) Replace or repair damaged or defective parts as
necessary.
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A-Cover removal
B-Lamp and socket removal
Figure 48. Warning lights and panel lights, removal and installation.
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71
Figure 49. Dome light, and electrical control switches, removal and installation.
106. Primer Pump Motor
a. Removal. Refer to figure 51, and remove the
primer pump motor from the primer pump.
b. Cleaning, Inspection, and Repair.
(1) Clean all parts with a clean cloth dampened
in an approved cleaning solvent, and dry
thoroughly.
(2) Inspect all parts for damaged or defective
condition.
(3) Replace or repair damaged or defective
parts as necessary.
c. Installation. Refer to figure 51, and install the
primer pump motor on the primer pump.
107. Microswitch
a. Removal. Refer to figure 51, and remove the
microswitch from the primer valve.
b. Cleaning, Inspection, and Repair.
(1) Clean all parts with a clean cloth dampened
in an approved cleaning solvent, dry
thoroughly.
(2) Inspect all parts for damaged or defective
condition.
(3) Replace or repair damaged or defective
parts as necessary.
c. Installation. Refer to figure 51, and install the
microswitch on the primer valve.
108. Rear Floodlight
a. Removal. Refer to figure 52, and remove the rear
floodlight from the fire truck body.
b. Cleaning, Inspection, and Repair.
(1) Clean all parts with a clean cloth dampened
in an approved cleaning solvent, and dry
thoroughly.
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Figure 50. Hose reel motor and solenoid relay, removal and installation
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Figure 51. Primer pump solenoid, primer pump, and motor, removal and installation.
(2)
Inspect door, gasket, and body for damaged
or defective condition.
(3) Inspect lamp for crack, breaks, or burned out
condition.
(4) Replace or repair damaged or defective
parts as necessary.
c. Installation. Refer to figure 52, and install the rear
floodlight on the fire truck body.
109. Rear Directional Light
a. Removal. Refer to figure 53, and remove the rear
directional light from the fire truck panel.
b. Cleaning, Inspection , and Repair.
(1) Clean all parts with a clean cloth dampened
in an approved cleaning solvent, and dry
thoroughly.
(2) Inspect lens, gasket for damaged or
defective condition.
(3) Inspect lamp for cracks, breaks, or burned
out condition.
(4)
Replace or repair damaged or defective
parts as necessary.
c. Installation. Refer to figure 53, and install the rear
directional light on tile fire truck panel.
110. Taillights
a. Removal. Refer to figure 53, and remove the
taillights from the fire truck panel.
b. Cleaning, Inspection, and Repair.
(1) Clean all parts with a clean cloth dampened
in an approve(l cleaning solvent, and dry
thoroughly.
(2) Inspect lens, gaskets, and door for damaged
or defective condition.
(3) Inspect lamp for cracks, breaks, or burned
out condition.
(4) Replace or repair damaged or defective
parts as necessary.
c. Installation. Refer to figure 53, and install the
taillights on the fire truck panel.
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111. Battery Charging Receptacles
a. Removal. Refer to figure 53, and remove the
battery charging receptacles from the rear apron.
b. Cleaning, Inspection, and Repair.
(1) Clean all parts with a clean cloth dampened
in an approved cleaning solvent, and dry
thoroughly.
(2) Inspect all parts for damaged or defective
condition.
(3) Replace or repair damaged or defective
parts as necessary.
c. Installation. Refer to figure 53, and install the
battery charging receptacles on the rear apron.
Figure 52. Rear floodlight, removal and installation.
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Figure 53. Rear directional light and taillight, removal and installation.
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Section XII. CONTROLS, INSTRUMENTS AND PANELS
112. General
The controls and instruments are primarily located on
the operators instrument panels located on the left and
right sides of the fire truck below the hose reel
compartments. The pump gage panel is located near the
left-hand instrument panel. It houses tile tachometerhourmeter which registers the engine rpm and hours of
operation.
The pump discharge pressure gage
determines the water discharge pressure, and the hydrant
pressure and vacuum gage determines the hydrant
pressure. A throttle control located on the left instrument
panel operates the engine speed. The apron is mounted
to the special purpose body at the rear of the fire truck.
There is a pump compartment bottom panel located
below and mounted to the pump compartment frame.
113. Right Side Control Panel
a. Removal.
(1) Remove the hose reel switch (para. 102).
(2) Refer to figure 54, and remove the right side
control panel from the pump compartment.
b. Cleaning, Inspection, and Repair.
(1) Clean all parts with an approved cleaning
solvent, and dry thoroughly.
(2) Inspect all parts for damaged or defective
condition.
Figure 54. Right side control panels, removal and installation.
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Figure 55. Left side control panels, removal and installation.
(3)
c.
Replace or repair damaged or defective
parts as necessary.
Installation.
(1) Refer to figure 54, and install the right side
control panels on the pump compartment.
(2) Install the hose reel switch (para. 102).
114. Left Side Control Panel
a. Removal.
(1) Remove the throttle control (para. 76).
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(2)
(3)
Remove the hose reel switch (para. 102).
Remove the engine dome and pump gage
control panel lights switch (paras. 99, 100,
and 101).
(4) Refer to figure 55, and remove the left side
control panel and bottom panel from the
pump compartment.
b. Cleaning, Inspection, and Repair.
(1) Clean all parts with an approved cleaning
solvent, and dry thoroughly.
78
(1)
Clean all parts with a clean cloth dampened
in an approved cleaning solvent, and dry
thoroughly.
(2) Inspect all parts for damaged or defective
condition.
(3) Replace or repair damaged or defective
parts as necessary.
c. Installation.
(1) Refer to figure 56, and install the tachometer-hourmeter on the pump gage panel
and transfer case.
(2) Refer to figure 48, and install the cover.
Figure 56. Tachometer-hourmeter, pump control
panel, and gages, removal and installation.
(2)
c.
Inspect all parts for damaged or defective
condition.
(3) Replace or repair damaged or defective
parts as necessary.
Installation.
(1) Refer to figure 55, and install the left side
control panel and bottom panel on the pump
compartment.
(2) Install the engine, dome and pump gage
control panel light switch (paras. 99, 100,
and 101).
(3) Install the hose reel switch (para. 102).
(4) Install the throttle control (para. 76).
115. Tachometer-Hourmeter
a. Removal.
(1) Refer to figure 48, and remove the cover.
(2) Refer to figure 56, and remove the
tachometer-hourmeter from the pump gage
panel and transfer case.
b. Cleaning, Inspection, and Repair.
116. Discharge Pressure Gage
a. Removal.
(1) Refer to figure 48, and remove the cover.
(2) Refer to figure 56, and remove the discharge
pressure gage from the pump gage panel.
b. Cleaning, Inspection, and Repair.
(1) Clean all parts with an approved cleaning
solvent, and dry thoroughly.
(2) Inspect all parts for damaged or defective
condition.
(3) Replace or repair damaged or defective
parts as necessary.
c. Installation,.
(1) Refer to figure 56, and install the discharge
pressure gage on the pump gage panel.
(2) Refer to figure 48, and install the cover.
117. Vacuum and Hydrant Pressure Gage
a. Removal.
(1) Refer to figure 48, and remove the cover.
(2) Refer to figure 56, and remove the hydrant
pressure gage from the pump) gage panel.
b. Cleaning, Inspection, and Repair.
(1) Clean all parts with an approved cleaning
solvent, and dry thoroughly.
(2) Inspect all parts for damaged or defective
condition.
(3) Replace or repair damaged or defective
parts as necessary.
c. Installation.
(1) Refer to figure 56, and install the vacuum
hydrant pressure gage on the pump gage
panel.
(2) Refer to figure 48, and install the cover.
TAGO 6839A
79
Figure 56-Continued.
TAGO 6839A
80
118. Pump Gage Control Panel
a. Removal.
(1) Remove the tachometer-hourmeter (para.
115).
(2) Remove the vacuum hydrant pressure gage
(para. 117).
(3) Discharge pressure gage (para. 116).
(4) Refer to figure 56, and remove the pump
gage control panel from the special purpose
body.
b. Cleaning, Inspection, and Repair.
(1) Clean all parts with an approved cleaning
solvent, and dry thoroughly.
(2) Inspect all parts for damaged or defective
condition.
(3)
c.
Replace or repair damaged or defective
parts as necessary.
Installation.
(1) Refer to figure 56, and install the pump gage
panel on the special purpose body.
(2) Install the discharge pressure gage (para.
116).
(3) Install the hydrant pressure gage (para. 117).
(4) Install the tachometer-hourmeter (para. 115).
119. Apron
a. Removal.
(1) Remove the rear directional and taillights
(paras. 109 and 110).
Figure 57. Apron, removal and installation.
TAGO 6839A
81
Figure 58. Pump compartment panel, removal and installation.
Remove the rear step (para. 61).
Remove the hose retainers (paras. 64 and
65).
(4) Remove the receptacles (para. 111).
(5) Remove the shovel bracket (para. 62).
(6) Remove the folding step (para. 66).
(7) Refer to figure 57, and remove the apron
from the special purpose body.
b. Cleaning, Inspection, and Repair.
(1) Clean all parts *with a clean cloth dampened
in an approved cleaning solvent, and dry
thoroughly.
(2) Inspect all parts for damaged or defective
condition.
(3) Replace or repair damaged or defective
parts as necessary.
c. Installation.
(1) Refer to figure 57, and install the apron on
the special purpose body.
(2) Install the folding step (para. 66).
(3)
(4)
(5)
(6)
(7)
(2)
(3)
Install the shovel bracket (para. 62).
Install the receptacles (para. 111).
Install the hose retainers (paras. 64 and 65).
Install the rear step (para. 61).
Install the rear directional and taillights
(paras. 109 and 110).
120. Pump Compartment Panel
a. Removal. Refer to figure 58, and remove the
pump compartment panel from the pump compartment.
b. Cleaning, Inspection, and Repair.
(1) Clean all parts with an approved cleaning
solvent, and dry thoroughly.
(2) Inspect all parts for damaged or defective
condition.
(3) Replace or repair damaged or defective
parts as necessary.
c. Installation. Refer to figure 58, and install the
pump compartment panel on the pump compartment.
TAGO 6839A
82
Section XIII. PUMPING SYSTEM
121. General
The fire truck pumping system consists of a
centrifugal-type pump, rotary vacuum priming pump,
steady valve, relief valve, water tank, foam, and two
motor driven hose reels. A series of operating valves,
drain valves, and a foam proportion regulator, regulate
operation of the fire pump for pumping water, or a water
and foam combination.
The centrifugal-type pump
develops pressure and capacity, by means of centrifugal
force, and must be primed before it will lift water. The
priming system consists of a rotary vacuum pump
operated by a 24-volt electric motor controlled through a
manual priming valve which actuates a microswitch
controlling the electric motor.
Water pressure is
controlled manually by a throttle knob and is held
automatically by the relief valve. The relief valve is
adjusted to any pump pressure up to 300 psi. The hose
reels are electric motor driven, and actuated by a reel
rewind button, located beneath the hose reel assemblies
on the instrument panel. The heat exchanger is mounted
in the engine compartment, and circulates water through
the engine cooling system from the pumping system to
cool the engine. The primer oil tank is mounted on the
engine cab beneath the right-hand seat. It supplies oil to
the primer pump.
122. Primer Pump
a. Removal.
(1) Remove the primer pump motor and
solenoid relay (para. 105).
(2) Refer to figure 59, and remove the primer
pump from the water pump manifold.
b. Cleaning, Inspection., and Repair.
(1) Clean all parts with an approved cleaning
solvent, and dry thoroughly.
Figure 5.9. Primer pump and universal joint, removal and installation.
TAGO 6839A
83
A-Line disconnect
B-Assembly removal
Figure 60. Hose reel, removal and installation.
TAGO 6839A
84
A-Left side
B -Right side
Figure 61. Suction and discharge heads and screens, removal and installation.
TAGO 6839A
85
(2)
c.
Inspect all parts for damaged or defective
condition.
(3) Replace or repair damaged or defective
parts as necessary.
Installation.
(1) Refer to figure 59, and install the primer
pump on the water pump manifold.
(2) Install the primer pump motor and solenoid
relay (para. 105).
123. Hose Reel
a. Removal.
(1) Remove the hose reel motor solenoid (para.
103).
(2) Remove the hose reel motor (para. 104).
(3) Refer to figure 60, and remove the hose reel
from the hose reel and pump compartment.
b. Cleaning, Inspection, and Repair.
(1) Clean all parts with a clean cloth dampened
in an approved cleaning solvent, and dry
thoroughly.
(2) Inspect all parts for damaged or defective
condition.
(3) Replace or repair damaged or defective
parts as necessary.
c. Installation.
(1) Refer to figure 60, and install the hose reel
on the hose reel and pump compartment.
(2) Install the hose reel motor (para. 104).
(3) Install the hose reel motor solenoid (para.
103).
124. Drive Chain
a. Removal. Refer to figure 50, and remove the
drive chain from the hose reel and motor.
b. Cleaning, Inspection, and Repair.
(1) Clean all parts with a clean cloth dampened
in an approved cleaning solvent, and dry
thoroughly.
(2) Inspect all parts for damaged or defective
condition.
(3) Replace or repair damaged or defective
parts as necessary.
c. Installation. Refer to figure 50, and install the
drive chain on the hose reel and motor.
125. Suction and Discharge Heads and Screens
a. Removal.
(1) Remove the instrument panels (paras. 113
and 114).
(2) Refer to figure 61, and remove the suction
heads and screens from the suction and
discharge lines.
b. Cleaning, Inspection, and Repair.
(1) Clean all parts with an approved cleaning
solvent, and dry thoroughly.
(2) Inspect all parts for damaged or defective
condition.
(3) Replace or repair damaged or defective
parts as necessary.
c. Installation.
(1) Refer to figure 61, and install the suction and
discharge heads and screens on the suction
and discharge lines.
(2) Install the instrument panels (paras. 113 and
114).
126. Pump Clutch Linkage
a. Removal.
(1) Remove the tool box (TM 9-2320-235-20).
(2) Refer to figure 62, and remove the pump
clutch linkage from the clutch and transfer
case.
b. Disassembly.
Refer to figure 63, and
disassemble the pump clutch linkage.
c. Cleaning, Inspection, and Repair.
(1) Clean all parts with a clean cloth dampened
in an approved cleaning solvent, and dry
thoroughly.
(2) Inspect all parts for damaged or defective
condition.
(3) Replace or repair damaged or defective
parts.
d. Reassembly. Refer to figure 63, and reassemble
the pump clutch linkage in the reverse order.
e. Installation. Refer to figure 63, and install the
pump clutch linkage on the clutch and transfer case.
TAGO 6839A
86
A-Front removal points
B-Rear removal points
Figure 62. Pump clutch linkage, removal, installation and adjustment.
TAGO 6839A
87
Figure 63. Pump clutch linkage, exploded view.
TAGO 6839A
88
Figure 64. Foam tank, vent hose, and foam tank, removal and installation.
f.
c.
Adjustment.
(1) Refer to figure 62, and adjust the pump
clutch linkage.
(2) Install the tool box (TM 9-2320-235-20).
127. Foam Tank Strainer, Foam Tank and Vent Hose
a. Removal.
(1) Drain the foam tank (para. 20).
(2) Refer to figure 64, and remove the foam
tank and vent hose from the compartment.
b. Cleaning, Inspection, and Repair.
(1) Clean all parts with a clean cloth
dampened in an approved cleaning
solvent, and dry thoroughly.
(2) Inspect all parts for damaged or defective
condition.
(3) Replace or repair damaged or defective
parts as necessary.
Installation.
(1) Refer to figure 64, and install the foam
tank and vent hose on the compartment.
(2) Fill the foam tank (para. 18).
128. Water Tank and Lines
a. Removal
(1) Drain the water tank (para. 20).
(2) Remove the foam tank (para. 127).
(3) Remove the ladder support assemblies
(para. 127).
(4) Refer to figure 65, and remove the water
tank from the special purpose body.
b. Cleaning, Inspection, and Repair.
(1) Clean all parts with an approved cleaning
solvent, and dry thoroughly.
(2) Inspect all parts for damaged or defective
condition.
(3) Replace or repair damaged or defective
parts.
TAGO 6839A
89
A-Control lever removal
B-Through bolt removal
C-Line removal
Figure 65. Water tank and lines, removal and installation.
TAGO 6839A
90
D-Line removal
E-Vent line removal
F-Tank removal
Figure 65-Continued.
c.
Installation.
(1)
Refer to figure 65, and install the
water tank and lines on the special purpose body.
(2)
Install the ladder support assemblies
(2)
Inspect all parts for damaged or
defective condition.
(3)
Install the foam tank (para. 127).
(4)
Fill the water tank (para. 18).
(3)
defective parts.
(para. 63).
129. Pump Drive Universal Joint
a.
Removal. Refer to figure 59, and remove
the pump drive universal joint from the pump and
transfer case.
b.
Disassembly.
Refer to figure 66, and
disassemble the pump drive universal joint.
c.
(1)
Clean all parts with a clean cloth
dampened in an approved cleaning solvent, and dry
thoroughly.
Cleaning, Inspection, and Repair.
TAGO 6839A
Replace
or
repair
damaged
or
d.
Reassembly.
Refer to figure 66, and
reassemble the pump drive universal joint in the reverse
order.
e.
Installation. Refer to figure 59, and install
the pump drive universal joint on the pump and transfer
case.
130. Drain Valve and Tubing
a.
Removal
(1)
Drain the lines (para. 20)..
91
Figure 66. Pump drive universal joint, exploded view.
TAGO 6839A
92
Figure 67. Drain valve and tubing, removal and installation.
(2)
Refer to figure 67, and remove the
drain valve and tubing from the valves, lines, and
bracket.
b.
Cleaning, Inspection, and Repair
(1)
Clean all parts with a clean cloth
dampened in an approved cleaning solvent, and dry
thoroughly.
(2)
Inspect all parts for damaged or
defective condition.
(3)
Replace or
defective parts as necessary.
repair
damaged
or
c.
Installation. Refer to figure 67, and install
the drain valves and tubing on the valves, lines, and
bracket.
TAGO 6839A
131. Heat Exchanger and Tubing
a.
Removal. Refer to figure 68, and remove
the cooler manifold and tubing from the engine
compartment.
b.
Cleaning, Inspection, and Repair.
(1)
Clean all parts with a clean cloth
dampened in an approved cleaning solvent, and dry
thoroughly.
(2)
Inspect all parts for damaged or
defective condition.
(3)
Replace or
defective parts as necessary.
repair
damaged
or
c.
Installation. Refer to figure 68, and install
the heat exchanger and tubing on the engine
compartment.
93
Figure 68. Heat exchanger and tubing, removal and installation.
132. Relief Valve Control
a.
Removal. Refer to figure 55, and remove
the relief valve control from the left side control panel.
b.
Cleaning, Inspection, and Repair.
(1)
Clean all parts with an approved
cleaning solvent, and dry thoroughly.
(2)
Inspect all parts for damaged or
defective condition.
TAGO 6839A
(3)
Replace or
defective parts as necessary.
repair
damaged
or
c.
Installation. Refer to figure 55, and install
the relief valve control on the left side control panel.
133. Water Pump Packing
Refer to figure 69, and adjust the water pump
packing.
94
Figure 69. Water pump packing adjustment.
TAGO 6839A
95
Section XIV. LUBRICATION SYSTEM
134. General
The lubrication system consists of an oil tank and
lines that supply lubrication to the vacuum priming
pump.
135. Oil Tank and Lines
a.
Removal.
(1)
Disconnect the oil line at the priming
pump (para. 122).
(2)
Refer to figure 70, and remove the oil
tank and lines from the cab and p)riming pulp).
b.
(1)
Clean all parts with a clean cloth
dampened in an approved cleaning solvent, and dry
thoroughly.
(2)
Inspect all parts for damaged or
defective condition.
(3)
Replace or
defective parts as necessary.
c.
repair
damaged
or
Installation.
(1)
Refer to figure 70, and install the oil
tank and lines on the cab and printing pump.
(2)
Connect the oil line at the priming
pump (para. 122).
Cleaning, Inspection, and Repair.
Figure 70. Oil tank and lines, removal and installation.
TAGO 6839A
96
CHAPTER 4
DEMOLITION OF FIRE TRUCK TO PREVENT ENEMY USE
136. General
138. Demolition by Explosives or Weapons Fire
When capture or abandonment of the fire truck to
an enemy is imminent, the responsible unit commander
must make the decision either to destroy the equipment
or to render it inoperative. Based on this decision,
orders are issued which cover the desired extent of
destruction.
Whatever method of demolition is
employed, it is essential to destroy the same vital parts
of all fire trucks, and all corresponding repair parts.
a.
Explosives. Place as many of the charges
shown on figure 71 as the situation permits and detonate
them simultaneously with a detonating cord and suitable
detonator.
(1)
One 1/2-pound charge between the
generator and cylinder block.
(2)
One 1/2-pound charge between the
starting motor and flywheel housing.
(3)
One 1/2-pound charge between fire
pump and primer pump.
(4)
One 1/2-pound charge on each hose
reel.
(5)
One 1/2-pound charge on water tank.
137. Demolition to Render Equipment Inoperative
a.
Mechanical Means. Use sledge hammers,
crowbars, picks, axes, or other heavy tools that may be
available, together with the tools normally included with
the fire truck, to destroy the following:
(1)
Engine accessories.
(2)
Fuel tank.
(3)
Controls and instruments.
b.
Weapons Fire. Fire on the fire truck with
the heaviest suitable weapons available.
139. Other Demolition Methods
Note. The above steps are minimum
requirements for this method.
b.
Misuse. Perform the following steps to
render the fire truck inoperative.
(1)
Drain the engine crankcase.
(2)
Throw sand, mud, and other foreign substances
into the oil filter openings and engine crankcase.
(3)
Drain the cooling system.
(4)
Cut the drive belts.
(5)
Drain the water pump transmission.
(6)
Drain the primer pump oil tank.
(7)
Throw dirt or sand into the radiator and fuel tank.
a.
Scattering and Concealment. Remove all
easily accessible parts, such as fuel pump, fuel filters,
oil filter, air cleaner, and batteries. Scatter them through
dense foliage, bury them in the ground, or throw them in
a lake, stream, or other body of water.
b.
Burning. Pack rags, clothing, or canvas
around the engine, pump and control panels. Saturate
this packing with gasoline, oil, or diesel fuel and ignite.
c.
Submersion. Totally submerge the fire truck
in a body of water, if possible, to provide some water
damage and concealment. Salt water will do greater
damage to metal parts than fresh water.
(8)
Operate the engine and fire pump at full speed
until failure occurs.
Note. The above steps are minimum
requirements for this method.
TAGO 6839A
140. Training
All operators should receive thorough training in
the destruction of the fire truck (FM 5-25). Simulated
destruction, using all of the methods listed above,
should be included in the operator training, that
demolition operations are usually necessitated by
97
Figure 71. Placement of charges.
Critical situations when time available for carrying out
destruction is limited. For this reason, it is necessary
that operators be thoroughly familiar with all methods of
TAGO 6839A
destruction of equipment, and be able to carry out
demolition instructions without reference to this or any
other manual.
98
CHAPTER 5
SHIPMENT AND LIMITED STORAGE
Section I. SHIPMENT WITHIN ZONE OF INTERIOR
141. Preparation of Equipment for Shipment
a.
General.
Detailed instructions for
preparation of the fire truck for domestic shipment
outlined within this paragraph. Preservation will
accomplished in sequence that will not require
operation of previously preserved components.
the
are
he
the
b.
Inspection. Inspect the fire truck for any
unusual conditions such as damage, rusting,
deterioration, accumulation of water, and missing
components. Inspect in accordance with steps outlined
in tile quarterly preventive maintenance services.
c.
Cleaning and Drying. Before al)plying any
preservative or paint, thoroughly clean all exterior
surfaces by an approved cleaning process.
After
cleaning and before applying any preservatives or paint,
dry thoroughly all surfaces. Approved methods of
cleaning and drying are described in TM 38-230.
d.
Painting. Paint all surfaces where the paint
has been removed or damaged. Refer to TB ENG 60
for detailed cleaning and painting instructions.
e.
Depreservation
Guide.
Annotate
depreservation instructions on DA Form 2258
(Depreservation Guide of Engineer Equipment)
concurrently with the preservation of the fire truck. Any
additional requirements will be outlined in blocks 27
through 33 of DA Form 2258. Place completed DA
Form 2258 in a waterproof envelope marked
"Depreservation Guide" and secure it in a conspicuous
location on or near the operator's controls.
f.
Lubrication System. Drain the water pump
crankcase and primer pump oil tank and fill with
preservative oil. Attach tags to indicate that crankcase
and oil tank are filled with preservative oil.
g.
Sealing of Openings. Seal all openings that
will permit the direct entry of water into the interior of the
engine or other components of the fire truck, with tape
conforming to Type III, Class I of Specification PPP-T60.
TAGO 6839A
h. Exterior Surfaces. Coat exposed, machined,
ferrous metal surfaces with preservative (P-6)
conforming with Specification MIL-C-11796, Class 3. If
preservative
is
not
available,
GAA-GREASE,
Automotive and Artillery, may he used.
i.
Marking. Mark fire truck in accordance with
requirements of Military Standard MIL-STD-129.
j.
Pumps. Spray interior of pumps with P-3
preservative oil conforming to MIL-C-16173, grade 3.
Seal openings that will permit the direct entry of water
with Type III, Class I, waterproof pressure-sensitive
adhesive tape, PPP--T-60.
k.
Disassembly, Disassembled Parts, Basic
Issue Items.
(1)
Disassembly will be limited to the
removal of parts and projecting components that tend to
increase the overall profile of the equipment and that
which is subject to pilferage.
(2)
Disassembled items will be packed
with the publications in the tool box if possible.
Otherwise, items will be packed in a suitable container
and secure to the equipment to prevent loss or pilferage.
l.
Hose and Couplings. Recoil on hose reels.
Shroud exposed hose not protected by storage facilities
with waterproof wrapping paper (UU-P-271).
142. Loading Equipment for Shipment
a.
Use a suitable lifting device, and hoist the
fire truck on the carrier. Refer to paragraph 6.
Note. Spreader bars should be used
to keep hoist cables from coming in
contact with the fire truck.
b.
Block and secure the fire truck to the flatcar
as illustrated on figure 4.
c.
Apply handbrake and place transmission in
neutral position.
99
Section II. LIMITED STORAGE
143. Preparation of Equipment for Storage
a.
General.
Detailed instructions for
preserving an(l maintaining equipment in limited storage
are outlined in this paragraph. Limited storage is
defined as storage not to exceed 6 months. Refer to AR
743-505.
144. Inspection and Maintenance of Equipment in
Storage
b.
Inspection. Refer to paragraph 141b.
c.
Cleaning and Drying.
d.
Painting. Refer to paragraph 141d.
e.
Depreservation Guide. Refer to paragraph
f.
Lubrication.
System.
Refer to paragraph
g.
Sealing of Openings.
Refer to paragraph
h.
Exterior Surfaces. Refer to paragraph 141h.
i.
Marking. Refer to paragraph 141i.
j.
Pumps. Refer to paragraph 141j.
Refer to paragraph
141c.
141e.
141f.
141g.
k.
Disassembly, Disassembled Parts, Basic
Issue Items. Refer to paragraph 141k.
l.
Hose and Couplings.
m.
Weatherproofing. When suitable shelter is
not available, select a firm, level, storage location
protected from prevailing winds. Position the fire truck
on heavy planking or other solid surfaces. Cover the
fire truck with a tarpaulin or other suitable waterproof
covering and tiedown securely.
Refer to paragraph
1411.
TAGO 6839A
a.
Inspection.
When fire truck has been
placed in storage, all schedule preventive maintenance
services, including inspection, shall be suspended and
preventive maintenance inspection shall be performed
as specified herein. Refer to AR 743-505.
b.
Worksheet and Preventive Maintenance.
DA Form 2258 (Depreservation Guide of Engineer
Equipment) and applicable forms listed in TM 38-750
will be prepared for each major item of equipment when
initially placed in limited storage and every 90 days
thereafter. Perform required maintenance promptly to
make sure equipment is mechanically sound and ready
for immediate use.
c.
Exercising. Service equipment in limited
storage every 90 days in accordance with paragraph 18.
Operate equipment long enough to bring it up to
operating temperature and insure complete lubrication
of all bearings, gears, and the like.
Represerve
equipment after operation.
100
APPENDIX I
REFERENCES
1. Dictionaries of Terms and Abbreviations
AR 320-5
Dictionary of United States Army Terms.
AR 320-50
Authorized Abbreviations and Brevity Codes.
2. Fire Protection
TM 5-687
Repairs and Utilities: Fire Protection Equipment and Appliances; Inspections,
Operations, and Preventive Maintenance.
TM 9-1799
Ordnance Maintenance: Fire Extinguishers.
3. Lubrication
LO 5-4210-205-12
Truck, Fire Fighting: Powered Pumper: Foam and Water 500 G.P.M. Cap.;
Centrifical Pump, Power Take Off Driven; 400 Gal. Water Tank, 40 Gal. Foam
Chemical Tank (Ward LaFrance Model M44A1WLF).
4. Painting and Preservation
TB ENG 60
Preservation and Painting of Serviceable Corps of Engineers Equipment.
5. Preventive Maintenance
TM 9-207
Operation and Maintenance of Ordnance Materiel in Extreme Cold Weather
(0°to -65o F.).
TM 9-6140-200-15
Storage Batteries, Lead-Acid Type.
TM 38-750
The Army Equipment Records System and Procedures.
6. Publication Indexes
DA Pam 108 1
Index of Army Motion Pictures, Filmstrips, Slides, Tapes, and Phono-Recordings.
DA Pam 310-1
Index of Administrative Publications..
DA Pam 310-2
Index of Blank Forms.
DA Pam 310-3
Index of Doctrinal Training and Organizational Publications.
DA Pam 310-4
Index of Technical Annuals, Technical Bulletins, Supply Manuals (types 4, 6,
7, 8, and 9). Supply Bulletins, Lubrication Orders, and Modification Work
Orders.
DA Pam 310 5
Index of Graphic Training Aids and Devices.
DA Pam 310-25
Index of Supply Manuals - Engineer Type Items.
7. Radio Interference Suppression
TM 11-483
Ratio Interference Suppression.
8. Shipment and Limited Storage
AR 743-505
Limited Storage of Engineers Mechanical Equipment.
TM 38-230
Preservation, Packaging, and Packing of Military Supplies and Equipment.
TAGO 6839A
101
9. Supply Publications
SM 10-C9100-SL
Petroleum, Petroleum-Base Products, and Related Materiel.
10. Training Aids
FM 5-25
FM 21-5
FM 21-6
FM' 21-30
Explosives and Demolitions.
Military Training.
Techniques of Military Instructions.
Military Symbols.
TAGO 6839A
102
APPENDIX II
MAINTENANCE ALLOCATION
Section I. INTRODUCTION
1. General
i. Overhaul. To restore an item to completely
serviceable condition as prescribed by serviceability
standards developed. This is accomplished through
employment of the technique of "Inspect and Repair
Only as Necessary" (IROAN). Maximum utilization of
diagnostic and test equipment is combined with
minimum disassembly of the item during the overhaul
process.
This appendix contains explanations of all
maintenance and repair functions authorized for the
various levels. Section II contains the maintenance
allocation chart.
2. Maintenance
Maintenance is any action taken to keep materiel in
a serviceable condition or to restore it to serviceability
when it is unserviceable. Maintenance of materiel
includes the following:
3. Explanation of Columns
a. Functional Group. The functional group is a
numerical group set up on a functional basis. The
applicable functional grouping indexes (obtained from
the Mobility Command Functional Grouping Indexes)
are listed on the maintenance allocation chart in the
appropriate numerical sequence.
These indexes
normally are set up in accordance with their function and
proximity to each other. 15. Components and Related
Operation.
This column contains the functional
grouping index heading, subgroup headings, and a brief
description of the part starting with the noun name. It
also designates the operations to be performed such as
service, adjust, inspect, test, replace, repair, and
overhaul.
a. Service. To clean, preserve, and replenish fuel
and lubricants.
b. Adjust.
malfunction.
To regulate periodically to prevent
c. Inspect. To verify serviceability and detect
incipient electrical or mechanical failure by scrutiny.
d. Test. To verify serviceability and detect incipient
electrical or mechanical failure by use of special
equipment such as gages, meters, and the like.
c. Levels of Maintenance. This column contains the
various levels of maintenance by number designation.
An X placed in the appropriate level column and in line
with an indicated maintenance function authorizes that
level to perform the function. The X indicates the lowest
level responsible for performing the function, but does
not necessarily indicate repair parts stockage at that
level. Higher levels are authorized to perform the
indicated functions of lower levels.
e. Replace. To substitute serviceable assemblies,
subassemblies,
and
parts
for
unserviceable
components.
f. Repair. To restore an item to serviceable
condition through correction of a specific failure or
unserviceable condition. This function includes, but is
not limited to, inspecting, cleaning, preserving,
adjusting, replacing, welding, riveting, and straightening.
d.
Remarks.
This column lists specific
maintenance functions, special tools, cross-references,
instructions, and the like pertinent to the operation being
performed.
g. Aline. To adjust two or more components of an
electrical system so that their functions are properly
synchronized.
h. Calibrate. To determine, check, or rectify the
graduation of an instrument, weapon, or weapons
system, or components of a weapons system.
103
Section II. MAINTENENCE ALLOCATION CHART
Functional
group
Components and related operation
O/C
03
0312
06
0607
0608
0609
0611
O612
0613
0615
12
1208
18
1808
1812
Levels of
maintenance
O
DS GS
FUEL SYSTEM.
Throttle Controls.
Controls, throttle:
Replace ................................................................. ..... ........ X
ELECTRICAL SYSTEM.
Instrument or Engine Control Panel.
Switches; gages; hourmeter; box, instrument housing;
tachometer; lamp holder; bulb; panel:
Replace ................................................................. ..... ........ X
Cable assembly; wiring:
Replace ................................................................. ..... .........
X
Miscellaneous Items.
Receptacle, slave; switch, turn signal:
Replace ................................................................. ..... ........ X
Lights.
Lights; lens; doors; gaskets:
Replace ................................................................. ..... ........ X
Light, rotating:
. Replace ........................................................................... ..... ........ X
Repair X
Siren.
Siren:
Replace........................................................................ ..... ........ X
Repair .......................................................................... ..... ........ X
Switch:
Replace........................................................................ ..... ........ X
Batteries.
Box, battery:
Replace ................................................................. ..... ........ X
Repair .................................................................... ..... ........ X
Chassis Wiring Harness.
Harness, wiring:
Replace ................................................................. ..... ......... .........X
Repair .................................................................... ..... ........ X
Radio Interference Suppression.
Components:
Test ....................................................................... ..... ........ X
Replace ................................................................. ..... ........ X
BRAKES.
Air Brake System.
Fittings:
Replace ................................................................. ..... ........ X
Tubing:
Replace ................................................................. ..... ........ X
Repair .................................................................... ..... ........ X
BODY.
Hose Reels.
Reels, hose:
Service................................................................... ....X
Replace ................................................................. ..... ........ X
Repair .................................................................... ..... ......... .........X
Special Purpose Bodies.
Body:
Replace........................................................................ ..... ......... .........X
Repair .......................................................................... ..... ........ X
TAGO 6839A
104
Remarks
D
Functional
group
Components and related operation
O/C
22
31
32
40
47
55
Doors:
Replace .................................................................
Repair ....................................................................
Aprons:
Replace .................................................................
Tank, water:
Service...................................................................
Inspect...................................................................
Replace .................................................................
Repair ....................................................................
Brackets; grating; holder, nozzle:
Replace .................................................................
ACCESSORY ITEMS.
2210
Data Plates and Instruction Holders.
Plates, data:
Replace .................................................................
Plates, instruction:
Replace .................................................................
BASIC ISSUE ITEMS, MANUFACTURER INSTALLED
3100
Basic Issue Items, Manufacturer or Depot Installed.
Case; publications; accessories:
Replace........................................................................
BASIC ISSUE ITEMS TROOP INSTALLED.
3200
Basic Issue Items Troop Installed or Authorized.
Tools, common:
Replace .................................................................
ELECTRIC MOTORS.
4000
Motor Assembly.
Motors, electric:
Replace .................................................................
4006
Starting and Protective Devices.
Switches; solenoids:
Replace .................................................................
GAGES.
4702
Gages, Mounting, Lines and Fittings.
Gages:
Replace .................................................................
PUMPS. I
5500
Pump Assembly.
Pump, primer:
Replace .................................................................
Repair ....................................................................
Pump, fire:
Replace .................................................................
Repair ....................................................................
5501
Impellers, Rotors.
Rotor, primer pump:
Replace .................................................................
Impeller, fire pump:
Replace .................................................................
5505
Suction and/or Discharge Systems.
Manifolds; valves:
Replace ................................................................
Repair ....................................................................
Head, suction:
Service...................................................................
Replace .................................................................
Levels of
maintenance
O
DS GS
X
X
X
X
X
X
X
X
X
X
X
X
X
TAGO 6839A
X
X
X
X
X
X
X
X
X
X
X
.... X
105
Remarks
D
Functional
group
Components and related operation
O/C
5507
5513
76
7601
7603
Doors:
Replace .................................................................
Valve, solenoid; fittings:
Replace .................................................................
Tubing:
Replace .................................................................
Repair ....................................................................
Pump Drives.
Gears; shafts; seals; bearings:
Replace .................................................................
Tubing:
Replace .................................................................
Repair ....................................................................
Universal joint:
Service...................................................................
Replace .................................................................
Repair ....................................................................
Controls, clutch:
Adjust ....................................................................
Replace .................................................................
Repair ....................................................................
Fittings:
Replace .................................................................
Fluid Lines.
Fittings; lines; valves, controls:
Replace .................................................................
FIRE FIGHTING EQUIPMENT COMPONENTS.
Foam Making Units.
Tank, storage:
Service...................................................................
Inspect...................................................................
Replace .................................................................
Repair ....................................................................
Valves:
Replace .................................................................
Rods, valve operating:
Service...................................................................
Replace .................................................................
Pipes; fittings; baffles:
Replace .................................................................
Fire Extinguishers.
Extinguishers, fire:
Service...................................................................
Replace .................................................................
Levels of
maintenance
O
DS GS
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
TAGO 6839A
106
Remarks
D
APPENDIX III
BASIC ISSUE ITEMS LIST AND MAINTENANCE AND OPERATING SUPPLIES
Section I. INTRODUCTION
1. General
Section II lists the accessories, tools, and
publications required in 1st level maintenance and
operation, initially issued with, or authorized for the Fire
Truck. Section III lists the maintenance and operating
supplies required for initial operation.
manufacture the part is indicated by the
following code symbol:
O-Organizational Maintenance 1 st and 2d
level)
b. Federal Stock Number. The Federal stock
number will be shown in this column, and will be used
for requisitioning purposes.
2. Explanation of Columns Contained
in Section II
a. Source Codes. The information provided in each
column is as follows:
c. Description.
(1) The item name and a brief description of the
part are shown.
(1) Materiel. This column lists the basic materiel
code number of the supply service assigned
responsibility for the part. Blank spaces
denote supply responsibility of the preparing
agency. General Engineer supply parts are
identified by the letters GE in parentheses,
following
the
nomenclature
in
the
description column. Other basic materiel
code numbers are
(2) A five-digit Federal supply code for manufacturers and/or other supply services is
shown in parentheses followed by the
manufacturer's part number. This number
will be used for requisitioning purposes w
hen no Federal stock number is indicated in
the Federal stock number column.
Example: (08654) 86453
8-Medical Materiel
10-Quartermaster Materiel
11-Signal Materiel
12-Adjutant General
(3) The letters GE, shown in parentheses immediately following the description, indicates General Engineer supply responsibility
for the part.
(2) Source. The selection status and source of
supply for each part are indicated by one of
the following code symbols:
d. Unit of Issue. If no abbreviation is shown in this
column, t}-c unit of issue is "each".
(a) P-applied to high-mortality repair parts which
are stocked in or supplied from the supply
service depot system, and authorized for use
at indicated maintenance levels.
e. Quantity Authorized. This column lists the
quantities of repair parts, accessories, tools, or publications authorized for issue to the equipment operator
or crew as required.
(b) PI-applied to repair parts which are lowmortality parts, stocked in or supplied from
supply service depots, and authorized for
installation at indicated maintenance levels.
f. Quantity Issued With Equipment. This column
lists the quantities of repair parts, accessories, tools, or
publications that are initially issued with each item of
equipment. Those indicated by an asterisk are to be
requisitioned through normal supply channels, as
required.
(3) Maintenance. The lowest maintenance level
authorized to use, stock, install, or
g. Illustrations. This column provides the following
information:
(1) Figure number. Provides the identifying
number of the illustration.
TAGO 6839A
107
Figure 72. Basic issue items.
(2) Item number.
Provides the references
number for the parts shown in the illustration.
3. Explanation of Columns Contained in
Section
III
c. Source of Supply. This column lists the basic
materiel code number of the supply service assigned
responsibility for the item. Blank spaces denote supply
responsibility of the preparing agency. Other basic
materiel code number is10 Quartermaster Materiel
a. Item. This column contains numerical sequenced item numbers, assigned to each component
application, to facilitate reference.
d. Federal Stock Number. The Federal stock
number will be shown in this column and will be used for
requisitioning purposes.
b. Component Application. This column identifies
the component application of each maintenance or
operating supply item.
e. Deception. The item and a brief description are
shown.
TAGO 5667A
108
Figure 72— Continued
f. Quantity Required for Initial Operation. This
column lists the quantity of each maintenance or
operating supply item required for initial operation of the
equipment.
Quantities listed represent the estimated requirements
for an average 8 hours of operation.
h. Notes. This column contains informative notes
keyed to data appearing in the preceding column
g. Quantity Required far 8 Hours Operation.
TAGO 6839A
109
Section II. BASIC ISSUE ITEMS LIST
Source codes
Material Source
Maintenance
Illustrations
Recoverability
Federal Stock
Stock No.
P1
O
......
..........................
11
P
O
......
..........................
11
P
O
......
.........................
11
P
O
......
..........................
P1
O
......
4240-288-9125
P
O
......
4240-204-1917
P1
0
......
752-559-9618
P
O
......
4210-223-9884
P
O
......
4210 223-9874 -
P1
O
......
421U 262-7073
P1
O
......
4210-288-8816
P1
O
......
4210-288-8815
P1
O
......
.......................
P
0
......
4210-223-9915
P
O
......
4210-555-8837
P
0
......
5210-202-7878
P
O
......
4210-240-7708
P
O
.......
4210-399 5991
P
O
......
.4210-288-8263
P
O
......
4210-241-8343
Description
GROUP 31 BASIC ISSUE ITEMS, MANU
FACTURER INSTALLED
3100 Basic Issue Items, Manufacturer
or Depot Installed
ADAPTER: universal thread, male side 2-1/2 inch
NH, female sideaadjustable, 22 27/32- to 3 1/2- in. od
capacity (96821) 1400.
BATTERY: dry cell; rectangular, -volt; 2-11/16 in
sq, 3 15/16 in. high SIG 3A275-200.
BATTERY: dry cell; cylindrical, 1 1/2--volt, 1-11/32
in. diameter, 2-11-32 in. Ig SIG, 3A30.
BATTERY: dry cell; rectangular, 9-volt, 8 9/16 in
lg, 4 1/16 in wide, 5 15/16- in. high SIG 3A275-207.
BREATHING APPARATUS, OXYGEN GENERATING: with 1 canister and carrying ease.
CANISTER, OXYGEN BREATHING
APPARATUS.
CASE: operations and maintenance publications,
cotton duck, water repellent and mildew resistant,
MIL-B-11743B (GE).
CHARGE, FIRE EXTINGUISHER, ANTIFREEZE: intended for 5 gallon extinguisher.
CHARGE, FIRE EXTINGUISHER, FOAM: for
2 1/2.- gallon extinguisher.
CLAMP, FIRE HOSE SHUTOFF: for 2 1/2 and 3
inch hose.
COUPLING, FIRE HOSE: swivel female, 2 1/2 inch
7 1/2 NH, guard, pin, or rocket lug each end.
COUPLING, FIRE HOSE: brass swivel female,
4 1/2 inch, 4 NH, long handles each end.
CRANK, HAND: booster line hose reel (92858)
H-500 F-61.
EXTINGUISHER, FIRE, CARBON DIOXIDE:
shatterable cylinder; trigger, button or squeeze
grip-control, 15 pound capacity.
EXTINGUISHER, FIRE, MONOBROMOTRIFLUOROMETHANE: charged hand shatterable
cylinder, penetrating seal valve, stored pressure,
w/ bracket, 2.75 Ibs.
EXTINGUISHER, FIRE, CARBON DIOXIDE:
charged, hand type nonshatterable cylinder, 15
pound, squeeze grip control permanent shut-off
valve.
EXTINGUISHER, FIRE, FOAM: charged, hand,
splash proof, fixed stopple 2 1/2- gallon capacity.
EXTINGUISHER, FIRE, VAPORIZING LIQUID:
charged, hand, 1/4- gallon capacity MIL-E-5220A.
EXTINGUISHER, FIRE, VAPORIZING LIQUID:
charged, for use w/carbon tetrachloride base; hand
type; copper container 1 gallon capacity.
EXTINGUISHER, FIRE, WATER: back pack,
steel container, galvanized finish; 6 gallon rated
capacity, plunger or trombone pump type.
TAGO 6839A
110
Unit
of
issue
Expend
ability
Qty
Authorized
Qty
Issued
with
Equipment
Fig
Item
72
21
............
.........
2
2
...........
..........
2
2
............
.......
10
10
..............
.........
1
1
.......
...........
2
2
72
40
........
...........
4
4
72
46
.......
..........
1
1
........
............
6
.......
.........
3
3
72
20
........
..........
1
1
72
42
........
.........
2
2
72
31
........
.........
1
1
72
23
........
.........
2
2
72
45
.......
.........
2
2
.........
........
1
1
.......
.......
1
1
........
.......
1
1
........
.......
1
1
........
......
1
1
........
......
3
3
Source codes
Material Source
8
11
Maintenance
Illustrations
Recoverability
Federal Stock
Stock No.
P
0
......
6230-164-6605
P
0
......
4210-243-3065
P1
0
......
...................
P
O
........
5330-202-4637
P
0
......
5330-202-4645
P
0
......
5330-202-4659
P
O
......
5330-202-666
P
0
......
4210-202 6712
P
0
......
4210-202-716
P
O
......
4210-288 6810
P
0
......
4210-288 6812
P
0
......
...........................
P1
0
......
4210-241-2864
P
P1
0
O
......
......
6545-922-1200
.....................
P1
0
......
4210-241-3206
P1
O
......
.....................
P1
O
........
4210-260 0921
P
O
........
6230-498 9408
P1
0
.........
4210-288-8827
Description
Unit
of
issue
FLASHLIGHT: 2 batteries accommodated with....
out batteries, 11/ volt; with miniature screw base
lamp nonfocusing.
FOAM LIQUID, DEHYDRATED: fire extin....
guisher; 5 gallon can.
FOAM SHAPER: used with nozzle (51378) model
....
FFF-101 A.
GASKET: rubber, 1/8 in. thk, 1 7/16 in. outside
......
diameter, 1-inch aperture.
GASKET: rubber, -1/8 in. thk, 2 1/16 in. outside
......
diameter, 1 9/16 inch aperture.
GASKET: rubber, 3/16 in. thk, 3 3/16 in. outside
......
diameter, 2 9/16 in. aperture.
GASKET: rubber, 1/4 in. thk, 5 7/8 in. outside
......
diameter, 4 9/16 in. aperture.
HOSE ASSEMBLY, RUBBER: chemical hose, 3
......
braid, for booster line, I inch inside diameter, 50
feet long, I in. - 8 NH male and female couplings.
HOSE ASSEMBLY, RUBBER: suction, 4 inch
.......
inside diameter hose, 10 feet long, 4 1/4- in NH male
and female couplings, guard, pin, or rocker lug,
male fitting; long handles on female fitting.
HOSE, COTTON, RUBBER LINED: double
......
jacket, 1 1/2- in. inside diameter, 50 feet Ig, 1 1/2- in.
NH male and female couplings, rocker, pin, guard
lug.
HOSE, COTTON, RUBBER LINED: double
......
jacket, 2-1/2 in. inside diameter, 50 feet Ig, male and
female couplings, 2-1/2 inch NH thread, rocker, pin,
guard lugs.
HOSE, COTTON, RUBBER LINED: suction,
......
double jacket, 4-1/2 in. inside diameter hose, 16 ft.
Ig, 4-1/2 in. NH female couplings, long handles
(96821) 1420.
JACKET, FIRE HOSE: sleeve for 2 1/2 in. inside
......
diameter cotton hose, with pin lugs, 10 inches
overall length.
KIT, FIRST AID, MOTOR VEHICLE: 12 unit
......
LADDER, FIRE, EXTENSION: aluminum, 3
......
section, 36 ft Ig (96821) 1424.
LADDER, FIRE EXTENSION: automatic type
......
locks, without tormentor poles; 2 sections, single
rope spreader, 20 ft Ig extended.
LADDER, FIRE, SINGLE: roof type, aluminum,
......
14 ft. la, w/folding hooks (96821) 1425.
LADDER, FIRE, SINGLE: roof type, with
.......
folding hooks, 12 ft Ig, 15 7/8 inches wide.
LANTERN, ELECTRIC: 6 volt square dry
.......
battery accommodated.
NIPPLE, HOSE: brass, 2-1/2 in. 7-1/2 NH, with
.............
guard, pin, or rocker lug.
TAGO 6839A
111
Expend
ability
Qty
Authorized
Qty
Issued
with
Equipment
....
5
5
....
7
7
.....
1
......
Fig
Item
1
72
5
10
10
72
18
......
10
10
72
18
......
10
10
72
18
......
10
10
72
18
......
6
6
72
37
.....
2
2
72
38
.......
16
16
72
36
......
24
24
72
36
......
1
1
72
35
......
1
1
72
4
......
......
2
1
2
1
72
72
39
32
......
1
1
.......
1
1
72
33
........
1
1
72
33
........
2
2
72
6
.........
2
2
72
30
Source codes
Material Source
10
10
Maintenance
Illustrations
Recoverability
Federal Stock
Stock No.
P1
0
......
.......................
P1
0
......
.....................
P1
0
.......
......................
P1
0
......
....................
P1
0
......
....................
P1
0
P1
0
..........
421-288 8261
P1
0
...........
4210-289 4299
P1
0
..........
421-288 6857
P
O-
..........
7240 243-1116
P1
0
...........
8340 256-9122
P1
0
............
4210-344-4601
P1
0
................
4210-288 7735
P1
0
.............
4210288 8845
P1
0
P1
0
..............
4020 228-9664
P1
0
.............
4210-288 7860
4210-287-1948
421-288 8817
Description
Unit
of
issue
Expend
ability
NOZZLE, FIRE, HOSE, WATER: throw handle
......
......
shutoff, female end, underwriters play pipe thread;
male end 1 1/2- inch 9 NH, MIL-N-12314A with
amendment, 2, type III, class B, (except with
above threads) (96821) 1433.
NOZZLE, FIRE HOSE, WATER: adjustable spray
......
.......
and straight stream, 1 1/2 inch-8 NH, MIEN12314A with amendment 2, type II, clam A
(96821) 1427.
NOZZLE, FIRE HOSE, WATER: adjustable spray
........
.......
and straight stream, 1 1/2 inch-9 NH, MIL-N
12314A with amendment 2, type II, class A
(96821) 1428.
NOZZLE, FIRE HOSE, FOAM: combination fog
.......
.........
and straight stream, 2 1/2- inch NH, with fog foam
screen (51378) Model FFF-1O1A.
NOZZLE, FIRE HOSE, FOAM: combination
........
.........
straight stream fog-foam, 1 1/2 NH, with 6 foot
extension applicator (96821) 1431.
NOZZLE, FIRE HOSE, FOAM: chemical foam
........... ..........
type, rigid style, 60 gallon per minute capacity,
1 1/2 in. dia. 9 NH thread inlet.
NOZZLE, FIRE HOSE, WATER: brass, plain
........... ...........
removable tip, without playpipe, 1 inch, 8 NH
thread female, 3/4- in 11-1/2 NH thread male outlet.
NOZZLE, FIREHOSE, WATER: brass, removable
.........
..........
tip, with stub type playpipe; 2 1/2- inch, 7 1/2 NH
thread female with guard, pin, or rocker lug, 2 inch,
14, 60 degree V-form thread, male outlet.
NOZZLE, FIRE HOSE, WATER: brass; three
..........
.........
position, 1 1/2- inch 9 NH thread female, with
applicator, 10 It Ig.
PAIL, METAL: iron, 3 1/2- gallon, round bottom fire
..........
.........
bucket.
PAULIN: cotton duck cloth; olive drab; 12 It wide
.........
.........
17 ft lg.
PLAYPIPE: stub, male end, underwriters play.......... ..........
pipe thread female end, 2-1/2 in. NH, with ladder
hook and swivel rubber handles.
REDUCER, HOSE: 4-1/2 in, 4 NH, female, RH,
............. .........
with long handles; 2-1/2 in, 7 1/2 NH swivel female,
guard, pin, or rocker lug.
REDUCER, HOSE: brass, thread female, 3/4- in-14
........... ..........
thread, NPSH, right-hand; thread male, 1 in. thread, NH, right-hand with guard, pin, or rocker
lug.
REDUCER, HOSE: brass, thread female, 2 inch............ ...........
11 1/2- thd, NPSH, right-hand, thread male, 2- in.
7 1/2- thd, NH, right-hand; with guard, pin, or rocker
lug.
ROPE, SISAL: circumference, 2-1/4 inch ea, minimum
LB
.........
breaking strength, 4320 lbs. 6.00 foot per lb.
SIAMESE CONNECTION, FIRE HOSE:: 236
........
.........
in, 7-1/2 in. NH shrivel female inlet, 2 rind male
gated outlets, 2-1/2 in. 7-1/2 NH.
-
TAGO 6839A
112
Qty
Authorized
Qty
Issued
with
Equipment
2
Fig
Item
2
72
28
2
2
72
22
1
1
72
22
1
1
72
7
2
2
72
25
2
2
2
2
2
2
2
2
4
4
4
4
2
2
72
29
1
1
72
17
1
1
1
1
25
26
72
34
1
1
72
1
Source codes
Material Source
Maintenance
Illustrations
Recoverability
Federal Stock
Stock No.
P
O
.................
4210-288 7861
P1
0
...............
............................
P1
0
.................
6230-299 6674
P1
0
................
4210-240-5531
P
0
..................
4210-252-3378
P1
0
P1
0
.............
........................
P1
0
..................
.........................
P1
0
...............
4210-240-8793
P1
0
................
4210-287-5025
P1
0
................
4210-240-8790
P1
0
..............
4210-240 8791
P
O
.............
4210-223-9870
P
O
..............
4210-142-4949
10
P
O
................
5120-257 0303
12
.........
..............
................
............................
.................
............................
12
.............. .................
Description
Unit
of
issue
Expend
ability
SIAMESE CONNECTION, FIRE HOSE: Sated,
............. ............
swivel female inlet, guard, pin, or rocker lug 2
in, 7 1/2: NH; 2 rigid male outlets, 1-1/2 in, 9 NH.
SIAMESE CONNECTION, FIRE HOSE: with
.............. ............
clapper valves, 2 1/2 in., 7 1/2 NH male connection,
single end; Siamese end, female connections, 2
in. NH (96821) 1409.
SPOTLIGHT: do, 9 volt, with reflector, parabolic
........... ............
4 1/2 in. diameter; with 4 1/2 in. diameter glass lens,
with carrying case and strap.
STRAINER, SUCTION, FIRE HOSE: brass, 4 1/2
............ ...........
in. diameter, 3/8 in. perforations, guard, pin, or
rocker lug, rigid female connection, 4 1/2 in. 4 NH;
with 30-foot rope.
STRAP, HOSE, AND LADDER: 24 inches long,
........... ..........
1 1/4 in. wide, 4 in. iron hooks each end.
TIP, NOZZLE, FIRE HOSE: brass, nonadjus
........... ...........
able, rigid female inlet, 1-1/2 in.-9 NH, 1 in. discharge opening, MIL:-SPEC-T-12167A with
amendment 1, class C, (except with above thread)
(96821) 1435.
TIP, NOZZLE, FIRE HOSE: brass, nonadjust............. ............
able, rigid female inlet, 1-1/2 in. 9 NH, 1 1/8 in. dim
charge opening, MIL-SPEC-T-12167A with
amendment 1, class C (except with above thread)
(96821) 1436.
TIP, NOZZLE, FIRE HOSE: brass, nonadjust
able, rigid female inlet, 1-1/2 in., opening, MIL
SPEC-T-12167A with amendment 1, class C
(except with above thread) (96821) 1437.
TIP, NOZZLE, FIRE HOSE: 2 in. diameter, female
............... ...........
uderwriter's standard tip thread, 4 1/2 in. minimum
length, outlet 1 inch diameter.
TIP, NOZZLE, FIRE HOSE: nonadjustable, brass
............ .............
inlet; -3/4 in. diameter, female, NH thread, outlet, -1/4
in. diameter, 3- in. minimum length.
TIP, NOZZLE, FIRE HOSE: 2 inch diameter,
.............. ..........
female underwriter's standard tip thread, 4 1/2
inch minimum length, outlet 1 1/8 inch diameter.
TIP, NOZZLE, FIRE HOSE: 2 inch diameter,
............. ...........
female underwriter's standard tip thread, 4 1/2
inch minimum length, outlet, 1-1/4 inch diameter.
VAPORIZING LIQUID, FIRE EXTINGUISHER:
.......... ...........
colored solution, 5 gallon can.
AX, PICK HEAD: 6 lb, 5 in. cutting edge, 36 in.
.......... ...........
handle.
BAR, WRECKING: 1 1/2 in. diameter stock, 43 in.
.......... ............
lg.
DEPARTMENT OF THE ARM Y LUBRICATION
............. .............
ORDER LO 5-21-205-12.
DEPARTMENT OF THE ARMY OPERATOR'S
........
.........
AND ORGANIZATIONAL MAINTENANCE
MANUAL TM 5 4210-205-12.
TAGO 6839A
113
Qty
Authorized
Qty
Issued
with
Equipment
1
Fig
Item
1
72
3
1
1
72
2
1
1
72
1
1
72
44
4
4
72
16
2
2
72
19
2
2
72
19
2
2
72
19
2
2
72
19
2
2
72
19
1
1
72
19
1
1
72
19
1
1
2
2
72
9
1
1
72
10
1
1
2
2
Source codes
Material Source
Maintenance
Illustrations
Recoverability
Federal Stock
Stock No.
Description
Unit
of
issue
Expend
ability
Qty
Authorized
Qty
Issued
with
Equipment
1
1
1
1
Fig
Item
*
1
1
1
72
72
72
72
43
11
24
26
2
1
1
1
*
1
*
72
72
72
8
41
48
2
2
2
2
1
*
72
47
1
2
*
2
72
72
49
12
2
2
2
2
2
2
72
13
2
2
72
15
4
4
72
14
GROUP 32-BASIC ISSUE ITEMS TROOP
INSTALLED
3200-BASIC ISSUE ITEMS TROOP
INSTALLED ON AUTHORIZED
10
10
10
10
P
P
P
P
O
O
O
O
...............
...............
...............
...............
5110-23-3272
5120-224-1344
5110-188-2519
5110-256-9212
P
P
P1
P
O
O
0
0
...............
...............
................
..................
5120 222-4374
4930-273-3644
5120-243-2766
5120-227-7349
P
0
................
5120-188-8450
P
0
...............
5120-224-9326
10
P
0
.............
5120-240-1414
10
10
P
P
O
0
...................
...............
5120 601-2498
5120-293-1089
10
P
0
.................
5120-293 0705
10
P
0
..................
5120-640-0608
10
P
0
.................
5120-336-5689
10
P
0
................
5120-049-7953
10
P
O
.................
5120 293-1602
10
10
CHISEL, COLD, HAND: ,3/4- in. cut, 7 in. Ig
............. ..........
CROWBAR: 7/8 in. diameter stock, 37 in. Ig
............. ...........
CUTTER, BOLT: 3/4 in. capacity, 48 in. Ig
............ ...........
CUTTER, BOLT: with insulated handles, 3/8 in
........... ...........
capacity with groping hook.
MATTOCK: cutter; with handle 5 lb
............. ..........
OILER, HAND: pump force fed 8 ounce capacity
............. ............
PIKE POLE: 8 foot handle.............................................. .......... .............
SCREWDRIVER, FLAT TIP: 3/8- in. width tip,
.............................
11-1/4 in. Ig.
SHOVEL, HAND: round point; long handle,
.............. .............
number 2 open back.
SHOVEL, HAND: square point D-handle; number
............. ............
2; blade, 11-1/2 to 12-1/2 in. Ig, 9-1/2 to 10 1/4 in. wide,
open back.
WRENCH, OPEN END, ADJUSTABLE: 0 to
.............. ............
2 1/16 in. opening, 18 in. Ig.
WRENCH, OPEN END, FIXED: 1 13/16 in. opening
........... ............
WRENCH, SPANNER: combination hydrant and
........... ...........
spanner, adjustable.
WRENCH, SPANNER: hose coupling type, 4 1/2
.......... ...........
in. diameter circle.
WRENCH, SPANNER: pin type -1/4 in. minimum
........... ..........
to 5/16- in. maximum pin diameter, 1.660 diameter
circle.
WRENCH, SPANNER: pin lug for 3/4 to 1 in. hose
........
........
couplings.
WRENCH, SPANNER: pin lug for 4-1/2 in. hose
..........
........
couplings.
WRENCH, SPANNER: universal pin rocker
............. ............
guard lug type.
TAGO 6839A
114
Section III. MAINTENANCE AND OPERATING SUPPLIES
Item
1.
2.
3.
Component
Application
Source
of
supply
Federal Stock No.
5600 PUMP
ASSEMBLY.
...........
..............................
10
10
9150-231-6653(1)
9160-266-9435(1)
Grade 9250 or......
OE-30............
2 qt
2 qt
(2)
(2)
10
10
10
9150-231-9037(1)
9150-265-9428(1)
9150 242-7601(1)
Grade 9110 or......
OE-10..............
OES
2 qt
2 qt
2 qt
(2)
(2)
(2)
.........
..............................
10
9160-190 0904(1)
........
........
..............................
..............................
GREASE POINTS...
5500 TANK,
PRIMING PUMP.
Quantity re
quired for initial operation
Description
Quantity required for 8
hours operation
OIL, LUBRICATING:
5-gal pail as follows:
(1) See SM 10
C-910-SL for
GREASE, AUTOMOTIVE AND
ARTILLERY: 1-lb
can as follows:
GAA............
OIL, LUBRICATING
(3)
TAGO 6839A
115
Notes
additional data and
requisitioning proce
dure.
(2) See current LO
for grade application
and replacement
intervals.
(3) Use oil as
prescribed in item 1.
As rqr
(2)
6 qt
(2)
INDEX
Paragraph
Adjustments:
Hose reel motor adjustment ........................ 104d
Air system:
Air tank tubing and fittings........................... 78
General ...................................................... 77
Air tank tubing and fittings.................................. 78
Apron ............................................................ 119
Axe, team, cutter, compartment accessories
brackets ...................................................... 69
Battery charging receptacles ............................. 111
Beacon warning light.......................................... 84
Beacon warning light switch ............................... 91
Battery box ....................................................... 74
Carbon dioxide and carbon tetrachloride
type fire extinguisher .................................. 28
Circuit breakers ................................................. 90
Compartment accessory doors, battery box,
and oil pan heater adapter:
Axe, bars, cutter, compartment acces
sories brackets .................................... 69
Battery box ................................................. 74
Compartment door assemblies ................... 72
Extinguisher compartment accessories........ 70
First aid bracket, hand lantern bracket,
and fitting compartment ....................... 71
General ...................................................... 68
Oil pan heater adapter ................................ 73
Compartment door assemblies ......................... 72
Controls and instruments:
Controls and instruments ........................... 14
General ...................................................... 13
Controls, instruments, and panels:
Apron.......................................................... 119
Discharge pressure gage ............................ 116
General ...................................................... 112
Left side control panel and pan.................... 114
Pump compartment panel .......................... 120
Pump gage control panel ............................ 118
Right side control panel and pan ................. 113
Tachometer-hourmeter ............................... 115
Vacuum and hydrant pressure gage ............ 117
Demolition by explosive weapons fire ................. 138
Demolition of fire truck to prevent enemy
use:
Demolition by explosives or weapons
fire ...................................................... 138
Demolition to render equipment inoper
ative..................................................... 137
General ............................................... 13B
Other demolition methods ................... 139
Training ............................................... 140
Paragraph
Page
Page
Demolition to render equipment inoperative........ 137
97
Description ....................................................... 3
Detailed lubrication information ......................... 33
Difference in models ......................................... 5
Discharge pressure gage .................................. 116
Drain valve and tubing ....................................... 130
Draining and flushing details .............................. 20
Drive chain ....................................................... 124
Dome light ........................................................ 98
Dome light switch .............................................. 99
Electrical system:
Battery charging receptacles ....................... 111
Beacon warning light................................... 84
Beacon warning light switch ........................ 91
Circuit breakers .......................................... 90
Dome light ................................................. 98
Dome light switch ....................................... 99
Engine light switch ..................................... 101
Engine oil pressure sending unit.................. 87
Engine temperature sending unit ................. 88
Flasher assembly ....................................... 88
Front directional light assembly................... 81
General ...................................................... 79
Hose reel switch ......................................... 102
Hose reel motor ......................................... 104
Hose reel motor solenoid relay .................... 103
Microswitch ................................................ 107
Primer pump motor .................................... 106
Primer pump motor solenoid relay............... 105
Pump gage panel light ............................... 97
Pump gage panel light switch...................... 100
Pump gage panel warning light ................... 96
Rear floodlight ........................................... 108
Rear directional light .................................. 109
Siren and flasher unit .................................. 82
Siren foot switch ........................................ 85
Siren hand switch ....................................... 94
Siren light switch ........................................ 92
Siren solenoid relay .................................... 86
Spotlight ..................................................... 83
Taillights .................................................... 110
Troubleshooting . ........................................ 45 47
Turn signal switch ...................................... 93
Underhood lights ........................................ 85
Wiring ........................................................ 80
Engine light switch ............................................ 101
Engine oil pressure sending unit......................... 87
Engine temperature sending unit........................ 88
Extinguisher compartment accessories .............. 70
Field expedient repairs:
Field expedient repairs ............................... 48
Loss of water or foam ................................ 50
2
31
5
79
91
20
86
Be
B9
70
69
58
59
81
50
75
62
65
54
29
65
50
54
53
53
53
50
54
53
9
9
81
79
77
78
82
81
77
79
79
97
97
97
97
97
97
TAGO ·6839A 116
75
62
65
65
68
69
68
63
63
65
60
59
70
70
70
72
72
70
68
69
67
72
74
60
67
66
65
63
62
74
41-42
66
63
60
69
63
63
63
42
43
Paragraph
Transfer case lever disengages ................... 49
Fire extinguisher bracket ................................... 59
First aid bracket, hand lantern bracket, and
fitting compartment .................................... 71
Flasher assembly .............................................. 89
Foam nozzle retainer ........................................ 54
Folding steps .................................................... B6
Foam tank strainer, foam tank and vent
hose ........................................................... 127
Front directional light assembly.......................... 81
Fuel system:
General ............................................... 76
Throttle control linkage ........................ 76
Handrails and brackets ..................................... 58
Heat exchanger and tubing................................. 131
Hose bed assemblies ........................................ 66
Hose bed partition ............................................. 57
Hose reel .......................................................... 123
Hose reel motor ................................................ 104
Hose reel motor solenoid relay .......................... 103
Hose reel switch ................................................ 102
Hose retainers .................................................. 65
Identification and tabulated data......................... 4
Inspecting and servicing equipment.................... 8
Inspection and maintenance of equipment in
storage ...................................................... 144
Installation or setting up instructions .................. 10
Interference suppression components ................ 52
Ladder support assemblies ............................... 53
Left side control panel and pan .......................... 114
Limited storage:
Inspection and maintenance of equip
ment in storage ................................... 144
Preparation of equipment for storage 143
Lubrication:........................................................ 33
Detailed lubrication information
General lubrication information ................... 32
Lubrication system:
General ...................................................... 134
Oil tank and lines ....................................... 135
Microswitch ....................................................... 107
Monobromotrinuoromethane and foam type
fire extinguishers ........................................ 29
Movement to a new worksite:
Dismantling for movement ......................... 11
Reinstallation after movement .................... 12
Oil pan heater adapter ....................................... 73
Oil tank and lines ............................................... 135
Operation at high altitude ................................... 27
Operation in extreme cold (below 0°F.).............. 22
Operation in extreme heat .................................. 23
Operation in salt-water areas ............................. 26
Operation in sandy or dusty areas...................... 24
Operation of auxiliary materiel used in con
junction with fire truck:
Carbon dioxide and carbon tetrachloride
type fire extinguishers .......................... 28
Monobromotrifloromethane and foam
type fire extinguishers .......................... 29
Page
42
46
53
65
47
49
89
60
67
58
46
93
46
46
86
70
70
70
47
5
7
100
7
42
47
78
100
100
31
31
96
96
72
29
g
9
54
96
29
25
27
29
27
29
29
TAGO 6839A
Paragraph
Operation of equipment:
Draining and flushing details ...................... 20
Final test before hosing fire truck after
returning from fire ............................... 21
General ...................................................... 15
Priming water pump and filling tank ............ 18
Pumping details ......................................... 19
Starting the engine ..................................... 16
Stopping the engine ................................... 17
Operation at high altitude ............................ 27
Operation in extreme cold (below 0°F.)....... 22
Operation in extreme heat ........................... 23
Operation in salt water areas....................... 26
Operation in sandy or dusty areas............... 24
Operation under rainy or humid condi
tions..................................................... 25
Troubleshooting .......................... 38, 39,41-43
Operation under rainy or humid conditions ......... 25
Operator and organizational maintenance
tools and equipment:
Basic issue tools and equipment .......... 31
Special tools or equipment .................. 30
Preventive maintenance services:
Daily preventive maintenance services ........ 35
General ...................................................... 34
Quarterly preventive maintenance serv
ices ..................................................... 36
Preparation of equipment for shipment............... 141
Preparation of equipment for storage ................. 143
Primer pump ..................................................... , 122
Primer pump motor ........................................... 105
Primer pump motor solenoid relay .................... 105
Priming water pump and filling tanks.................. 18
Pump clutch linkage .......................................... 126
Pump compartment panel ................................. 120
Pump drive universal joint.................................. 129
Pump gage control panel .................................. 118
Pump gage panel light ...................................... 97
Pump gage panel light switch............................. 100
Pump gage panel wiring light ............................. 96
Pumping details ................................................ 19
Pumping system:
Drain valve and tubing ................................ 130
Drive chain ................................................. 124
Foam tank strainer, foam tank and vent
hose .................................................... 127
General ...................................................... 121
Heat exchanger and tubing.......................... 131
Hose reel ................................................... 123
Primer pump .............................................. 122
Pump thatch linkage .................................. 126
Pump drive universal joint ........................... 129
Relief valve control ..................................... 132
Suction and discharge heads and screens... 125
Troubleshooting ......................................... 40, 44
Water pump packing .................................. 133
Water tank and lines ................................... 128
Radio interference suppression:
General methods used to attain sup
pression .............................................. 51
117
Page
20
20
13
14
20
14
14
29
25
27
29
27
29
41
29
31
31
35
35
3S
99
100
83
72
70
14
86
82
91
81
B8
69
B7
20
91
85
89
83
93
86
83
86
91
94
86
41
94
89
42
Paragraph
Interference suppression components... ...... 62
Replacement of suppression components ... 53
Testing of radio interference suppres
sion component ................................... 54
Rear directional light ......................................... 109
Rear flood switch .............................................. 108
Rear step .......................................................... 61
Record and report forms ................................... 2
Relief valve control ............................................ 132
Replacement of suppression components... ....... 53
Retainers, steps, tool box door, guards, hose
bed assemblies and ladder support assem
blies:
Fire extinguisher bracket ..................... 59
Foam nozzle retainer ........................... 64
Folding steps ....................................... 66
General ............................................... 55
Handrails and bracket ......................... 58
Hose bed assemblies .......................... 56
Hose bed partition ............................... 57
Hose retainer ....................................... 65
Ladder support assemblies................... 63
Rear step ............................................ 61
Shovel brackets ................................... 62
Splash guards ..................................... 67
Tool box door ...................................... DO
Right-side control panel and pan ........................ 113
Service upon receipt of equipment:
Inspecting and servicing equipment ...... 8
Installation of separately packed com
ponents ............................................... 9
Installation or setting up instructions..... 10
Paragraph
Page
42
42
44
74
72
46
2
94
42
46
47
49
44
46
46
46
47
47
46
46
49
46
77
7
7
7
TAGO 6839A
Page
Unloading the equipment ........................... 6
7
Unpacking the equipment ........................... 7
7
Shipment within zone of interior:
Loading equipment for shipment ................. 142
99
Preparation of equipment for shipment........ 141
99
Shovel brackets ................................................ 62
46
Siren and flasher light ....................................... 82
60
Siren foot switch ............................................... 95
67
Siren hand switch ............................................. 94
66
Siren light switch ............................................... 92
65
Siren solenoid relay .......................................... 86
B3
Splash guards ................................................... B7
49
Stoplight ........................................................... 83
62
Suction and discharge heads and screens.......... 125
8B
Tachometer-hourmeter ...................................... 115
79
Taillights ........................................................... 110
74
Throttle control linkage ...................................... 76
58
Tool box door .................................................... 60
46
Troubleshooting:
Electrical system ..................................45-47
41-42
General ...................................................... 37
41
Operation of equipment....................... 38,39,41-43 41
Pumping system ........................................ 40,44 41
Turn signal switch ............................................. 93
66
Underhood lights ............................................... 85
63
Unloading the equipment .................................. 6
7
Unpacking the equipment................................... 7
7
Vacuum and hydrant pressure gage................... 117
79
Water tank and lines .......................................... 128
89
Wiring ............................................................ 80
60
118
Figure 3. Wiring diagram.
By Order of the Secretary of the Army:
HAROLD K. JOHNSON,
General, United States Army
Chief of Staff.
Official:
J. C. LAMBERT,
Major General, United States Army,
The Adjutant General.
Distribution:
Active Army:
USASA (2)
USMA (2)
ACSI (1)
DCSLOG (1)
CNGB (1)
TSG (1)
CofEngrs (1)
C/COMMEL (1)
CofT (1)
CofSptS (1)
USA Maint Bd (1)
USAARTYBD (2)
USAARMBD (2)
USAIB (2)
USAADBD (2)
USAAESWBD (2)
USAAVNBD (2)
USCONARC (3)
OS Maj Comd (5) except
USASETAF (2) USARJ (10)
USAMOCOM (2)
USASMCOM (1)
MDW (1)
Armies (2)
Corps (2)
Div (2)
Engr Bde (1)
Svc Colleges (2)
Br Svc Sch (2) except
USAES ( 100)
GENDEP (OS) (10)
Engr Dep (OS) (10)
Army Dep (2)
USA Trans Tml Comd (2)
USA Tml (1)
USAOSA (2)
Div Engr (2)
Engr Dist (2)
USAERDL (3)
USA Mbl Equip Cen (46)
Engr Cen (5)
USAREUR EnBr Proc Cen (2)
USAREUR Engr Sup Con Agcy (10)
Chicago Proc Ofc (10)
Engr Fld Maint Shops (2)
Fld Comd, DASA (8)
AMS (3)
USAREURCOMZ (2)
USA Corps (1)
MAAG (1)
JBUSMC (1)
Units org under fol TOE: (2 ea UNOINDC)
5-48
5-237 (5)
5-262 (5)
5-267 (1)
5-278 (5)
5-279
NG: State AG (3).
USAR: Same as active Army except allowance is one copy to each unit.
For explanation of abbreviations used, see AR 320-50.
U.S. GOVERNMENT PRINTING OFFICE 1984-764-028/5088
TAGO 6839A
119
The Metric System and Equivalents
Linear Measure
Liquid Measure
1 centiliter = 10 milliters = .34 fl. ounce
1 deciliter = 10 centiliters = 3.38 fl. ounces
1 liter = 10 deciliters = 33.81 fl. ounces
1 dekaliter = 10 liters = 2.64 gallons
1 hectoliter = 10 dekaliters = 26.42 gallons
1 kiloliter = 10 hectoliters = 264.18 gallons
1 centimeter = 10 millimeters = .39 inch
1 decimeter = 10 centimeters = 3.94 inches
1 meter = 10 decimeters = 39.37 inches
1 dekameter = 10 meters = 32.8 feet
1 hectometer = 10 dekameters = 328.08 feet
1 kilometer = 10 hectometers = 3,280.8 feet
Square Measure
Weights
1 sq. centimeter = 100 sq. millimeters = .155 sq. inch
1 sq. decimeter = 100 sq. centimeters = 15.5 sq. inches
1 sq. meter (centare) = 100 sq. decimeters = 10.76 sq. feet
1 sq. dekameter (are) = 100 sq. meters = 1,076.4 sq. feet
1 sq. hectometer (hectare) = 100 sq. dekameters = 2.47 acres
1 sq. kilometer = 100 sq. hectometers = .386 sq. mile
1 centigram = 10 milligrams = .15 grain
1 decigram = 10 centigrams = 1.54 grains
1 gram = 10 decigram = .035 ounce
1 decagram = 10 grams = .35 ounce
1 hectogram = 10 decagrams = 3.52 ounces
1 kilogram = 10 hectograms = 2.2 pounds
1 quintal = 100 kilograms = 220.46 pounds
1 metric ton = 10 quintals = 1.1 short tons
Cubic Measure
1 cu. centimeter = 1000 cu. millimeters = .06 cu. inch
1 cu. decimeter = 1000 cu. centimeters = 61.02 cu. inches
1 cu. meter = 1000 cu. decimeters = 35.31 cu. feet
Approximate Conversion Factors
To change
To
inches
feet
yards
miles
square inches
square feet
square yards
square miles
acres
cubic feet
cubic yards
fluid ounces
pints
quarts
gallons
ounces
pounds
short tons
pound-feet
pound-inches
Multiply by
centimeters
meters
meters
kilometers
square centimeters
square meters
square meters
square kilometers
square hectometers
cubic meters
cubic meters
milliliters
liters
liters
liters
grams
kilograms
metric tons
Newton-meters
Newton-meters
2.540
.305
.914
1.609
6.451
.093
.836
2.590
.405
.028
.765
29,573
.473
.946
3.785
28.349
.454
.907
1.356
.11296
To change
ounce-inches
centimeters
meters
meters
kilometers
square centimeters
square meters
square meters
square kilometers
square hectometers
cubic meters
cubic meters
milliliters
liters
liters
liters
grams
kilograms
metric tons
To
Newton-meters
inches
feet
yards
miles
square inches
square feet
square yards
square miles
acres
cubic feet
cubic yards
fluid ounces
pints
quarts
gallons
ounces
pounds
short tons
Temperature (Exact)
°F
Fahrenheit
temperature
5/9 (after
subtracting 32)
Celsius
temperature
°C
Multiply by
.007062
.394
3.280
1.094
.621
.155
10.764
1.196
.386
2.471
35.315
1.308
.034
2.113
1.057
.264
.035
2.205
1.102
PIN: 005824-003
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