TM-5-4310-270-15
TM 5-4310-270-15
OF THE ARMY
DEPARTMENT
OPERATOR
DIRECT
AND
AND
SUPPORT
M A I N T E N A N C E
TWO
FRAME
ROTARY,
GASOLINE
(FULLER
FSN
H E A D Q U A R T E R S ,
DEPOT
DRIVEN,
AIR,
WHEELBARROW
TWO
ENGINE
AND
M A N U A L
POWER
IMPELLER,
MOUNTED,
MANUAL
ORGANIZATIONAL
GENERAL
COMPRESSOR,
TECHNICAL
PNEUMATIC
60
MODEL
CFM,
6.5
TIRES,
P.S.I.
2MSWB)
4310-906-8994
D E P A R T M E N T
SEPTEMBER 1967
O F
T H E
A R M Y
SAFETY PRECAUTIONS
BEFORE OPERATION
When handling gasoline, always provide a metal-to-metal contact between the container and
tank. This will prevent a spark from being generated as gasoline flows over the metallic surface.
Never attempt to service any of the air compressor components until the unit is relieved of
all air pressure.
Do not operate the air compressor in an inclosed area unless the exhaust gases are piped
to the outside. The exhaust gases contain carbon monoxide, which is a colorless, odorless, and
poisonous gas.
DURING OPERATION
Never attempt to service any of the air compressor components until the unit is relieved of
all pressure.
AFTER OPERATION
When handling gasoline, always provide a metal-to-metal contact between the container and
tank. This will prevent a spark from being generated as gasoline flows over the metallic surfaces.
Never attempt to service any of the air compressor components until the unit is relieved of
all air pressure.
Be extremely careful when using a carbon tetrachloride fire extinguisher in an enclosed area.
A poisonous gas is generated by the contact of carbon tetrachloride with a heated metallic
surface. Provide adequate ventilation before entering an inclosed area where carbon tetrachloride has been used.
Changes in force: C 1 and C 2
TM 5-4310-270-15
C2
Change
HEADQUARTERS
DEPARTMENT OF THE ARMY
No. 2
WASHINGTON , DC 28 August 1974
Operator, Organizational, Direct and General Support,
and Depot Maintenance Manual
COMPRESSOR, ROTARY, AIR; POWER DRIVEN; TWO IMPELLER; WHEELBARROW FRAME MOUNTED; TWO PNEUMATIC TIRES; GASOLINE ENGINE;
60 CFM, 6.5 PSI (FULLER MODEL 2MSWB) FSN 4310-906-8994
TM 54310-270-15, 11 September 1967, is changed as
follows:
Reverse of cover page. Add to Safety Precautions:
WARNING
This compressor is NOT SUITABLE for the
supply of air for charging cylinders with
BREATHABLE AIR.
with TB MED-251. The signs should read:
WARNING
NOISE HAZARD EQUIPMENT. HEARING PROTECTION REQUIRED.
Page 2-7. Paragraph 2-13, add:
WARNING
WARNING
Operation of this equipment presents a
NOISE HAZARD to presonnel in the area.
The noise level exceeds the allowable limits
for unprotected personnel. Wear ear plugs or
ear muffs which were fitted by a trained
professional.
Operation of this equipment presents a
NOISE HAZARD to personnel in the area.
Wear ear muffs or ear plugs which were
fitted by a trained professional.
WARNING
Cleaning solvent, PD-680, is POTENTIALLY DANGEROUS chemical. Do not
use near open flame.
Page 2-3. Paragraph 2-5e is added.
e. Noise Hazard Warning Signs. Signs conforming
to provisions of AR 385-30 will be erected in the area to
provide notification of NOISE HAZARD in accordance
WARNING
This compressor is NOT SUITABLE for the
supply of air for charging cylinders with
BREATHABLE AIR.
Page 3-1. Paragraph 3-4b, add:
WARNING
Cleaning solvent, PD-680, used for cleaning
is POTENTIALLY DANGEROUS CHEMICAL. Do not use near open flame. Flash
point of solvent is 100- 138F°. (38-59° C. ).
1
By Order of the Secretary of the Army:
Official:
VERNE L. BOWERS
Major General, United States Army
CREIGHTON W. ABRAMS
General, United States Army
Chief of Staff
The Adjutant General
Distribution:
To be distributed in accordance with DA Form 12-25A (qty rqr block No. 30) Organizational Maintenance
requirements for Air Compressors, 60 CFM.
2
PIN : 6 7 0 9 1 1 - 0 0 2
Table 2-1.
TM
T ECHNICAL M A N U A L
No. 5-4310-270-15
5-4310-270-15
HEADQUARTERS
DEPARTMENT OF THE ARMY
Washington, D. C., 11 September 1967
Operator And Organizational
Direct And General Support And Depot
Maintenance Manual
COMPRESSOR ROTARY, POWER DRIVEN, AIR,
TWO IMPELLER, WHEELBARROW
FRAME MOUNTED, TWO PNEUMATIC TIRES, GASOLINE
ENGINE 60 CFM, 6.5 P.S.I.
(FULLER MODEL 2MSWB)
FSN 4310-906-8994
Paragraph
Page
1. Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. . . . . . . . . . . . . . . . . . . . . . . . . 1-1
Section I. General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1-1
1-1
II. Description and tabulated data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1-3
1-1
CHAPTER
2.
Section I.
II.
III.
IV.
CHAPTER
Installation and Operating Instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1
Service upon receipt of equipment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. . 2-1
2-1
Movement to new worksite . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-6
2-3
Controls and instruments . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 2-8
2-3
Operation of equipment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2-10
2-5
3. Operator and Organizational Maintenance Instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-1
Section I. Operator and organizational maintenance tools and equipment . . . . . . . . . . . . . . . . . . 3-1
3-1
II. Lubrication . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3-3
3-1
III. Preventive maintenance service . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-5
3-4
IV. Operator maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3-8
3-9
V. Trouble shooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3-12
3-17
VI. Radio interference suppression . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-24
3-13
VII. Air intake and discharge system . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-29
3-14
3-15
VIII. Fuel system . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3-34
IX. Tires, tubes and wheels . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3-39
3-21
X. Vibration and shock insulation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-41 3-22
3-22
XI. Frame . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-43
3-24
XII. Power plant . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3-44
CHAPTER
4.
Section I.
II.
Direct and General Support and Depot Maintenance Instructions . . . . . . . . . . . . . . . . . . . . . . . . . 4-1
4-1
4-1
General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4-1
Description and tabulated data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4-3
5.
Section I.
II.
III.
IV.
General Maintenance Instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-1
5-1
5-1
Special tools and equipment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
5-3
5-1
Trouble shooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
5-7
5-1
Radio interference suppression . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
5-9
5-1
Removal and installation of major components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
CHAPTER
CHAPTER
i
Paragraph Page
C HAPTER 6. Compressor Repair Instructions . . . . . . . . . . . . . . . . . . . . . . .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-1
...
APPENDIX A. References . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .A-1
B. Basic Issue Items List. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-1
C. Maintenance Allocation Chart . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C-1
INDEX . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . I-1
.
ii
CHAPTER 1
INTRODUCTION
Section I. GENERAL
1-1.
Scope
a. These instruction are published for use
by personnel to wom rotary compressor is issued. Chapters 1 through 3 provide information on operation, preventive maintenance services, and organizational maintenance of equipment, accessories, components, and attach.
ments. Chapter 4 provides information for direct and general support and depot maintenance. Also included are descriptions of main
units and their functions in relationship to other components.
b. Appendix A contains a list of publications
applicable to this manual. Appendix B contains the list of basic issue items authorized,
the operator of this equipment and the list of
maintenance and operating supplies required
for initial operation. Appendix C contains the
maintenance allocation chart. Organizational,
direct and general support and depot maintenance repair parts and special tools are listed
in TM 5-4310-270-25P.
c. Numbers in parentheses following nomenclature callouts on illustrations indicate
quantity; numbers preceding nomenclature
callouts indicated preferred sequence,
d. Direct reporting of errors, omissions and
recommendations for improving this equipment manual by the individual user is authorized and encouraged. Prepare DA Form 2028
(Recommended Changes to DA Publications)
for this purpose, using pencil, pen or typewriter, and forward direct to Commanding General, U.S. Army Mobility Equipment Command,
ATTN: AMSME-MP 4300 Goodfellow Blvd.,
St. Louis, Missouri 63120.
1-2. Record and Report Forms
a. DA Form 2258 (Depreservation Guide for
Vehicles and Equipment).
b. For other record and report forms applicable to operator, crew, and organizational
maintenance, refer to TM 38-750.
Note. Applicable forms, excluding Standard Form
46, (United States Government Motor Vehicles Operators Identification Card) which is carried by the
operator, shall be kept in a canvas bag mounted on
equipment.
Section II. DESCRIPTION AND TABULATED DATA
1-3. Description
a. General. The Fuller Model 2MSWB Rotary Compressor (fig. 1-1 ) is directly driven
by a Military Standard Engine and is mounted
on a wheelbarrow-type frame for convenient
movement. The rotary compressor pumps 60
cubic feet of air per minute for inflating pontoons.
b. Engine. A description of the Military
Standard Engine Model 2A016-III (fig. 1-1)
is contained in TM 5-2805-208-14.
1-1
Figure 1-1. Rotary compressor, right front three- quarter view, and left side, with
shipping dimensions.
1-2
c. Air Compressor. The Fuller Blower Type
2 and 3 Air Compressor (fig. 1-1) is a rotary,
positive displacement type air pump and is
lubricated from the rear.
d. Frame. The tubular, wheelbarrow-type
frame (fig. 1-1 ) has a toolbox mounted for
storage of tools and couplings. Two tubetype pneumatic tires are provided at the front
of the frame for ease of movement.
1-4. Identification and Tabulated Data
a. The rotary compressor has two major
The information conidentification plates.
tained on the plates is listed below.
(1) Engine plate
Manufacture . . . . . . . Continental Motors
Corp.
Cylinders . . . . . . . . . . 2
Cycle . . . . . . . . . . . . . . 4
Valve . . . . . . . . . . . . .. Overhead
Displacement . . . . . . . 16 cu. in.
Stock number . . . ...2805-072-4871
Serial number . . . . . .
Military model . . . . . . 2A016-111
Maintenance manual . TM-5-2805-208-14
Date manufactured . .
Purchase order
number . . . . . . . . . . .
(2) Nomenclature . . . . . . . Compressor: Air Rotary, 60 CFM (cubic
feet per minute) at
6.5 PSI (pounds per
square inch at 3,600
rpm (revolutions per
minute).
Stock number . . . ...4310-906-8994
Manufacture . . . . . . . Fuller Company
Model . . . . . . . . . . . .2MSWB
Serial number . . . . . .
Data manufactured . .
Contract number . . . . DA-23-195-AMC00963(T)
Length . . . . . . . . . . . . 42 inches
Width . . . . . . . . . . ...27 inches
Height . . . . . . . . . . . ..26 inches
Shipping weight . ...364 pounds
cube . . . . . . . . . . . . ..17.5 feet
Engine manufacture . Military Standard
Model . . . . . . . . . . . . ..2A016 III
Engine serial
number . . . . . . . . . . .
b. Tabulated Data
(1) Compressor, Rotary air, 60 CFM, 6.5 PSI
Manufacture . . . . . . . Fuller Company GATX
Model . . . . . . . . . . . .2MSWB
Type . . . . . . . . . . . . .. Portable gasoline
driven
Serial numbers ....49513 thru 49572 and
50251 thru 50574
A45599 and 45600
(2) Blower
Manufacture . . . . . . . Fuller Company
Type . . . . . . . . . . . . . . Positive displacement
Model . . . . . . . . . . . . . California series
Size . . . . . . . . . . . . . .2 and 3
Cubic feet per
minute . . . . . . . . . ...60
Pounds per square
inch . . . . . . . . . . . ...6.5
Revolutions per
minute . . . . . . . . . ...3,600
(3) Engine (ref. TM 5-2805-208-14)
Make . . . . . . . . . . . . . . Military Standard
Engine
Model . . . . . . . . . . . .2A016 - III
Type . . . . . . . . . . . .4-cycle, gasoline, overhead valve, air-cooled
Number Cylinders . . 2
Bore . . . . . . . . . . . . . .2.250 in.
Stroke . . . . . . . . . . . .. 2 in.
Piston Displacement . . . . . . . . . . . . . 16 cu. in.
Compression Ratio ..6:1
Horsepower at 3,600
rpm . . . . . . . . . . . . . . 3
(4) Engine accessories
a. Carburetor
Make . . . . . . . . . . Military Design
Engines 1A08-III and
2A016-III.
Model . . . . . . . . .. ERF 4730
Type . . . . . . . . . .. Float
b. Fuel Pump
Make . . . . . . . . .. Military Design
Model . . . . . . . . . . 9786E18A
Type . . . . . . . . . .. Diaphragm
c. Air Cleaner
Make . . . . . . . . .. Military Design
Model . . . . . . . . . . 9786E20A3
Type . . . . . . . . . . . Dry
d. Spark Plug
Make . . . . . . . . . . Military Standard
Model . . . . . . . . .. MS51009-1
Type . . . . . . . . . .. Shielded
e. Governor
Make . . . . . . . . . . Military Standard
Model . . . . . . . . . .
Model 1A08-III. 9876E75
Model 2A016III . . . . . . . . . ..9787E40A2
Type . . . . . . . . . . . centrifugal-flyweight
f. Fuel Filter
Make . . . . . . . . .. Military Design
Model . . . . . . . . ..13206E1480
Type . . . . . . . . . .. Element
1-3
(5) Compressor accessories
a. Air Relief Valve
MFR . . . . . . . . . .. Kunkle Mfg. Co.
Model . . . . . . . . ..86-C
Type . . . . . . . . . .. Spring loaded disc
b. Air Filter (Compressor)
MFR . . . . . . . . . . . Universal silencer
Model . . . . . . . ...14-129
Type . . . . . . . . . .. Replacement Element
c. Shaft Coupling
MFR . . . . . . . . . .. Browning
Model . . . . . . . . ..JS5H
Type . . . . . . . . . ..JAW
d. Tire
MFR . . . . . . . . . ..General tire and
rubber
Size . . . . . . . . . . ..10 by 3.50 - 4
4.10/3.50-4
Ply . . . . . . . . . . . . 2
Air Pressure . ..40 PSI
e. Shock Mount
MFR ... . . . . . . ..Korfund
Model . . . . . . . . ..F-B-470-RED
Type . . . . . . . . . ..Elastomer
f. Air Hose
MFR . . . . . . . . . ..Raybestos Manhattan
Inc.
Type . . . . . . . . ..ZZ-H-496
Size . . . . . . . . . . . . 11/4 I.D. by 25 ft.
1-4
(6) Capacities
Fuel tank . . . . . . . . . 2.5 gal.
Engine crankcase . ..5/8 qt.
Blower gearcase . ...2 oz.
(7) Nut and bolt torque data
Headplate . . . . . . . . ..20 lbs.
Gearcase . . . . . . . . . ..10 lbs.
Bearing plate . . . ...10 lbs.
Engine bracket . . ...10 lbs.
Blower mounting . ..10 lbs.
Engine and blower
frame . . . . . . . . . . ..10 lbs.
Fuel tank straps . ...5 lbs.
Shock mounts . . . ...5 lbs.
Engine mounting . ..10 lbs.
(3) Dimensions and weight (fig. 1-1)
Length . . . . . . . . . . ..42 inches
Width . . . . . . . . . . . ..27 inches
Height . . . . . . . . . . ...26 inches
Weight . . . . . . . . . . ...163 lbs. (Without
Ace.)
Volume . . . . . . . . . . ..17 cubic feet
Shipping weight . ...364 lbs.
1-5. Differences in Models
This manual covers only the Fuller Company
Model 2MSWB Rotary Compressor. No known
differences exist for the model covered b:
this manual.
CHAPTER 2
INSTALLATION AND OPERATING INSTRUCTIONS
Section I. SERVICE UPON RECEIPT OF EQUIPMENT
2-1.
Unloading of Equipment
Unload rotary compressor from carrier using manpower or a forklift truck.
2-2. Unpacking New Equipment
Unpack equipment as close to installation
site as possible. Open the wooden crate that
equipment is shipped in. Remove overpack kit
and air hoses from crate. Remove equipment
from crate. Check equipment against packing
list and report any discrepancies to field maintenance.
2-3. Inspection and Servicing Equipment
a. Make a complete visual inspection of the
rotary compressor for any loss or damage that
may have occurred during shipment. Prior to
inspection or operation of the rotary compressor, accomplish depreservation of blower and
engine as outlined on DA form 2258.
b. Inspect the identification plates for positive identification of the equipment.
c. Inspect the engine for loose or missing
mounting hardware, exhaust port and carburator intake port free of preservative tape.
d. Inspect the blower for loose mounting
bolts, cracks, breaks and other defects. All air
vent holes must be free of preservative tape.
e. Inspect the coupling for misalignment.
f. Turn the engine with the starting rope to
make sure all moving parts are free of restrictions.
g. Check the contents of the crate against the
packing list to make sure that no items are
missing.
h. Correct all deficiencies or report them to
the proper authority.
i. Service rotary compressor as directed in
figure 3-2.
(1) Lubricate blower as directed in current lubrication order (fig. 3-1 ).
(2) Lubricate engine as directed in TM
5-2805-208-14.
j. Fuel System: Refer to appendix II, Maintenance and Operating Supplies. Fill fuel tank
with the proper grade of gasoline and inspect
for leaks.
Warning: When handling gasoline, always
provide a metal to metal contact between the
container and the tank. This will prevent a
spark from being generated as fuel flows over
the metallic surfaces.
k. Cold Weather Operation
(1) Keep fuel tank full to avoid condensation.
(2) Clean the sediment bowl more frequently than usual.
(3) Clean snow and ice from lubrication
points before lubricating. Lubricate
engine as described in the current
lubrication order.
2-4. Installation of Separate Packed
Components
a. The rotary compressor is delivered with
two air hoses, two inflating valves, two nozzles, hose strap and engine starting rope.
These items, except the hose, are packed in
the tool box.
b. The hose, inflating valve and nozzle are installed as shown in figure 2-1.
2-1
Figure 2-1. Air hose, nozzle, inflator and fitting installation and removal.
2-2
C. The engine starting rope is used as described in figure 2-3.
d. The hose strap is used as illustrated in
figure 1-1.
2-5. Installation or Setting-up Instructions
a. General. This rotary compressor is a portable, self-contained unit designed to operate
under severe conditions.
b. Outdoor Installation. Set up rotary compressor as level as possible. If a hard surface
is used, the wheels must be chocked.
Caution: The rotary compressor should never be operated more than 15 degrees off level.
c. Assemble the hose, inflating valve and conInstall
nect to male fitting on the manifold.
nozzle on item to be inflated, (fig. 2-1).
d. Indoor Installation. Provide for at least
two feet of excess space on all sides of the
unit. Make sure the enclosure is well ventilated. Install gas-tight exhaust pipe extensions
to carry exhaust fumes to the outside. Wrap
the exhaust pipes with asbestos if there is
danger of any one touching them.
Warning: Do not operate rotary compressor
in an enclosed area unless exhaust gases are
piped to the outside. Inhalation of exhaust
fumes will result in serious illness or death.
Section II. MOVEMENT TO NEW WORK SITE
2-6. Dismantling for Movement
a. Shut down and disconnect inflating valve
from nozzle.
b. Disconnect nozzle from system being inflated.
c. Disconnect air hose from manifold and
coil around frame, secure with hose strap as
shown in figure 1-1.
d. Store inflating valves, and nozzle in tool
box.
e. The rotary compressor is a portable unit
and can be readily moved by manpower from
one site to another,
2-7. Re-installation After Movement
Set up the rotary compressor for operation
in accordance with instructions in paragraph
2-5.
Section III. CONTROLS AND INSTRUMENTS
2-8. General
2-9. Controls
This section describes, locates, illustrates
and furnishes operator, crew or organization
maintenance personnel sufficient information
about various controls and instruments for
proper operation of the rotary compressor.
The purpose of controls and their normal
positions are illustrated in figure 2-2 and engine TM 5-2805-208-14, figure 6.
2-3
Figure 2-2. Controls.
2-4
Section IV. OPERATION OF EQUIPMENT
2-10. General
2-11.
a. Instructions in this section are published
for information of the rotary compressor.
b. The operator must know how to perform
every operation of which the rotary compressor is capable. This section gives instructions
on starting and stopping the rotary compressor, basic motions of the rotary compressor,
and on coordinating basic motions to perform
specific tasks for which the equipment is designed. Since nearly every job presents a different problem, the operator may have to vary
given procedures to fit the individual job.
a. Preparation For Starting:
(1) Perform the daily preventive maintenance services, (para 3-6).
(2) Lubricate the rotary compressor in
accordance with the current lubrication order.
(3) Lubricate engine in accordance with
LO 5-2805-208-14.
(4) If the engine is new or rebuilt or if
the fuel filter has been serviced, remove fuel filter sediment bowl, fill
with gasoline and replace. This will
save repeated cranking of engine required to pump gasoline from the fuel
tank to the sediment bowl.
b. Starting: Refer to figure 2-3 and start
the rotary compressor.
Starting
2-5
2-6
Figure 2-3. Engine starting procedure.
c. When engine warms up pull inlet temperature control handle out for temperatures
above 50 degrees F. Push handle in for temperatures below 25 degrees F. Place handle
halfway in for temperatures between 25 degrees F and 50 degrees F.
2-12. Stopping
a. Refer to figure 2-4 and stop the rotary
compressor.
2-13. Operation in Extreme Cold (Below
0° F)
a. Refer to current lubrication order for
proper grade of lubrication.
b. Keep the fuel tank as full as possible and
refill after operation to prevent condensation
from forming within the tank.
c. Clean the fuel filter sediment bowl more
frequently than usual.
d. Clean snow and ice from lubrication
points before lubricating.
e. Inlet temperature handle must be pushed
all the way in for temperatures below 25 degrees F.
2-14. Operation in Extreme Heat
a. Refer to current lubrication order for the
proper grade of lubricants. Lubricate engine as
described in LO 5-2805-208-14.
b. Check the air shrouds of the engine for
insufficient ventilation of the engine. Clean
air shrouds at regular intervals.
c. Inlet temperature handle must be pulled
all the way out for temperatures above 50 degrees F.
d. The blower air filter must be kept clean
or replaced more frequently.
2-15. Operation in Dusty or Sandy Areas
Figure 2-4. Stoppage Engine.
b. Perform the necessary daily preventive
maintenance service.
2-13. Operation Under Usual Conditions
a. It is essential that the operator know how
to perform every operation of which the rotary compressor is capable. Perform the daily
preventive maintenance services, (para 3-6).
b. Start the rotary compressor as described
in figure 2-3.
c. Stop rotary compressor as described in
figure 2-4.
d. When the engine is operating, the air
blower is directly driven at a preset pressure
and no further operations need be performed
other than the desired connection of either 1
or 2 hoses. The air hose and fittings may be
connected and disconnected when the rotary
compressor is operating.
a. Lubricate unit in accordance with the current lubrication order and LO 5-2805-208-14.
Keep lubricants free of dust and sand. Keep
lubrication points, and lubrication equipment
clean.
b. Service engine air cleaner, sediment
bowl, and blower air filter more frequently than
during normal operation.
c. Provide adequate protection to keep sand
and dirt from entering fuel tank when filling.
Service fuel filter as often as necessary to
keep it free of foreign matter.
d. Protect rotary compressor from dust and
sand by locating it near natural barriers and by
wetting down the surrounding terrain if water
is plentiful.
e. Clean the unit at frequent intervals with
an approved cleaning solvent or compressed
air.
f. Cover the unit when not in operation.
2-7
2-16. Operation Under Rainy or Humid
Conditions
a. Protect the unit with a shelter of some
kind. Keep the sides open for ventilation.
b. Make sure all surfaces requiring lubrication are clean and dry before applying lubrication. Lubricate in accordance with current
lubrication order.
c. Frequently wipe dry all exposed areas.
d. Keep fuel tank full, to prevent condensation.
e. Keep the air hose clean and dry. Inspect
frequently for cracks and deterioration.
f. Cover the unit when not in operation.
2-17. Operation in Salt Water Areas
a. Wash unit frequently with clean, fresh water. Be careful not to contaminate fuel system.
2-8
b. Coat exposed metal surfaces with rust
proofing material. Remove any rust immediately and apply paint or oil as applicable.
c. Lubricate in accordance with current lubrication order, and LO 5-2805-208-14.
2-18. Operation in High Altitudes
a. The rotary compressor is designed to operate efficiently at elevations up to 5,000 feet.
There will be a reduction in efficiency because
of the rarified air at this level. This is a normal condition that can not be prevented.
b. Keep the air filters clean and unobstructed.
c. Maintain the engine at maximum efficiency, check with engine manual TM 5-2805-20814 for engine service.
CHAPTER 3
OPERATOR AND ORGANIZATIONAL
MAINTENANCE INSTRUCTIONS
Section I. OPERATOR AND ORGANIZATIONAL
MAINTENANCE TOOLS AND EQUIPMENT
3-1. Special Tools and Equipment
3-2. Basic Issue Equipment
No special tools or equipment are required
by operator or organizational maintenance personnel for maintenance of the rotary compressor.
Equipment with, or authorized for use with,
the rotary compressor is listed in the basic issue items list, appendix B of this manual.
Section II. LUBRICATION
3-3. General Lubrication Information
a. This section contains a reproduction of
the lubrication order and lubrication instructions which are supplemental to, and not specifically covered in, the lubrication order.
b. The lubrication order shown in figure 3-1
is an exact reproduction of the approved lubrication order for the rotary compressor. For
the current lubrication order, refer to DA
pamphlet 310-4.
3-4. Detailed Lubrication Information
a. General. Keep all lubricants (grease and
oil ) in closed containers and stored in a clean,
dry place away from heat. Allow no dirt, dust,
water, or foreign material to mix with the lubricant at any time. Keep all lubrication equipment clean and ready for use.
b. Cleaning. Keep all external parts not requiring lubrication clean of lubricants. Before lubricating the equipment, wipe all lubrication points free of dirt and grease. Clean all
lubrication points after lubrication to prevent
accumulation of foreign matter.
c. Points of Application. Detailed lubrication instructions for the engine are contained
in TM 5-2805-208-14. Follow the detailed lubrication instructions given beneath each illustrated lubrication point indicated in the current
lubrication order, figure 3-1.
3-1
Figure 3-1. Lubrication order.
3-2
d. Operation After Lubrication.
Operate
unit for five minutes after lubrication. Inspect
for leaks and check oil level in crankcase.
Step unit, wait five minutes, and check oil
level again. Add oil if necessary.
e. OES Oil.
(1) Crankcase oil level must be checked
frequently as oil consumption may
increase.
(2) Oil may require changing more frequently than usual because contamination by dilution and sludge formation will increase under cold weather
operation conditions.
3-3
Section III. PREVENTIVE MAINTENANCE SERVICE
3-5. General
To insure that the rotary compressor 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 3-6 and
3-7. Item numbers indicate the sequence of
minimum inspection requirements. Defects discovered during operation of the unit shall
be noted for future correction, to be made as
soon as operation has ceased. Stop operation
immediately if a deficiency is noticed which
would damage the equipment if operation were
3-4
continued. All deficiencies and shortcomings
will be recorded together with the corrective
action taken on DA Form 2404 (Equipment Inspection and Maintenance Worksheet) at the
earliest possible opportunity.
3-6. Daily Preventive Maintenance Service
This paragraph contains an illustrated tabulated listing of preventive maintenance services which must be performed by the operator. The item numbers are listed consecutively
and indicate the sequence of minimum requirements. Refer to figure 3-2 for the daily preventive maintenance services.
PREVENTIVE MAINTENANCE SERVICES
DAILY
TM 5-4310-270-15
ITEM
FULLER MODEL 2MSWB
COMPRESSOR, ROTARY AIR
LUBRICATE IN ACCORDANCE WITH CURRENT LUBRICATION ORDER PAR REF
1.
BLOWER GEAR CASE. Check oil level, add oil A/R.
3-14
2.
BLOWER AIR CLEANER. Service as required (weekly).
3-15
3.
ENGINE CRANKCASE. Check oil level, add oil A / R .
3-9
4.
ENGINE AIR CLEANER INDICATOR. Check for red warning signal.
3-9
5.
TIRES. Check tire pressure (maximum air pressure 40 Ibs) (weekly).
6.
ENGINE FUEL FILTER. Service as required (weekly).
7.
FUEL TANK. Added fuel as required.
3-10
MEC 431 O-270-15/FIG. 3-2
Figure 3-2. Daily preventive maintenance.
3-5
3-7. Quarterly Preventive Maintenance
Service
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 three
3-6
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 3-3 for the quarterly
preventive maintenance services.
PREVENTIVE MAINTENANCE SERVICES
Quarterly
TM 5-4310-270-15
FULLER MODEL 2MSWB
COMPRESSOR, ROTARY AIR
ITEM LUBRICATE IN ACCORDANCE WITH CURRENT LUBRICATION ORDER PAR REF
1.
GEARCASE OIL DRAIN. Drain after first 500 hr, then every 1500 hrs.
2.
OIL LEVEL CHECK. Add oil as required.
3-14
3.
RUBBER WASHER. Check for proper sealing.
3-32
4.
AIR RELIEF VALVE. Check for loose parts, adjust when required.
3-31
5.
BLOWER AIR FILTER. Service when required every 250 hrs.
3-15
3-29
6.
COUPLING. Check rubber insert, replace if necessary.
5-12
7.
ENGINE FUEL FILTER. Service as required.
3-10
3-37
MEC 4310-270-15/FIG. 3-3
Figure
3-3.
Quartly
preventive
maintenance.
3-7
PAR REF
ITEM
8.
ENGINE SPARK PLUGS. Clean and adjust 0.028 to 0.033 in.
9.
ENGINE VALVE TAPPETS, Check clearance, adjust to 0.014 in.
3-44
10.
ENGINE OIL DIP STICK. Add oil as required.
3-11
11.
AIR CLEANER INDICATOR. Check for red warning signal.
12.
ENGINE AIR CLEARNER. Service as required.
3-9
13.
ENGINE CONTACT ASSEMBLIES. Adjust point gap to 0.018 in.
3-44
14.
TIRE. Check tire pressure (maximum 40 Ibs. ).
15.
MOUNTING HARDWARE. Check for loose nut and bolts.
16.
SECURING CHAIN. Check for damage links and mounting.
17.
SHOCK MOUNT. Check for crack and loose hardware.
18.
FUEL TANK. Service strainer, check for loose mounting straps.
3-42
MEC 4310-270-15/FIG. 3-3
3-8
Section iV. OPERATOR MAINTENANCE
3-8. General
Instructions in this section are published for
the information and guidance of the operator
to maintain the rotary compressor.
3-9
Figure 3-4. Operator maintenace.
3-10
3-11
3-9. Engine Air Cleaner Service
Refer to figure A, 3-4, and engine TM 52805-208-14.
3-13. Wheel Assembly
Service tire as illustrated in figure E, 3-4.
3-14. Blower Assembly
3-10. Engine Fuel Filter Service
Refer to figure B, 3-4, and engine TM 52805-208-14.
3-11. Engine Oil level
Refer to figure C, 3-4, and current lubrication order.
3-12. Fuel Tank Service
Service fuel tank as illustrated in figure D,
3-4.
Maintain proper lubrication at all times. Refer to current lubrication order and figure F,
3-4.
3-15. Air Intake Filter
The air filter element must be replaced after
250 hours of normal operation and 150 hours
under severe operating conditions, (ref fig.
G, 3-4).
3-16. Tool Box
Inspect tool box as illustrated in figure H,
3-4.
Section V. TROUBLESHOOTING
3-17. General
This section provides information useful in
diagnosing and correcting unsatisfactory operation or failure of the rotary compressor and
its components. Each trouble symptom stated
is followed by a list of probable causes. The
possible remedy recommended is described opposite the probable cause. Any trouble beyond
the scope of organizational maintenance shall
be reported to direct support maintenance. Refer to TM 5-2805-208-14 for engine troubleshooting.
3-18. Engine Fails to Get Fuel
Probable Cause
Possible Remedy
Fuel line clogged or . . . . . . Clean or replace fuel line,
para 3-35.
damaged.
Fuel tank cap air vent . . . Clean fuel tank cap air
vent.
closed.
Fuel low in tank. . . . . . . . . Fill fuel tank with gasoline
3-19. Air Compressor Output Pressure
Possible Remedy
Probable Cause
Air-relief valve defective. . Replace air-relief valve,
para 3-31.
Air compressor defective. Replace air compressor,
para 5-14.
Coupling defective. . . . . . . Repair or replace coupling, para 5-12.
Engine speed below . . . . . . Adjust engine governor;
refer to TM 5-2805-2083,600 RPM.
14.
3-20. Air Compressor Knocks
Probable Cause
Possible Remedy
Air compressor oil level . . . Fill compressor gearcase,
low.
para 3-14.
Coupling defective. . . . . . . Repair or replace coupling,
para 5-12.
Air Compressor defective. . Replace air compressor,
para 5-14.
3-21.
Air Compressor Overheats
Probable Cause
Possible Remedy
Compressor air filter . . . . . Replace compressor air
element.
filter element, para 3-15.
Air hoses restricted. . . . . . Remove restriction.
Inadequate
Probable Cause
Possible Remedy
Air hoses and coupling . . . Tighten loose air hose conhalves.
nections. Replace defective air hoses and coupling halves, para 3-33.
Air filter element dirty. . . Replace or clean air filter
element, para 3-30.
3-12
3-22. Air Compressor Air Contains Oil
Probable Cause
Possible Remedy
Air compressor oil level . . . Drain oil from compressor
too high.
gearcase to prescribed
level.
Air compressor bearings . . Replace air compressor,
defective.
para 5-14.
3-23.
Air
Compresor
Vibrates
Excessively
para 3-41.
para 5-12.
Section
VI.
RADIO
INTERFERENCE
SUPPRESSION
3-24. Definitions
a. Interference. The term “interference” as
used herein applies to electrical disturbances
in the radio frequency range which are generated by the rotary compressor and which may
interfere with the proper operation of radio
receivers or other electronic equipment, or enable the enemy to locate the equipment.
b. Interference Suppression. The term “interference suppression” as used herein applies to the methods used to eliminate or effectively reduce radio interference generated
by the rotary compressor.
3-25. General Methods Used to Attain
Proper Suppression
Essentially, suppression, is attained by providing a low resistance path to ground stray
currents. Methods used include shielding the
ignition and high-frequency wire, grounding
the frame with bonding straps, and using capacitors and resistors.
3-26. Interference Suppression Components
a. Primary Suppression Components. The
primary suppression components are those
whose primary function is to suppress radio interference. These components are described
and located in the engine technical manual, TM
5-2805-208-14.
b. Secondary
Suppression Components.
These components have radio interference suppression functions which are incidental and/or
secondary to their primary function, (ref fig.
3-5).
Figure 3-5. Radio interference suppression component.
3-27. Replacement of Suppression
Components
a. Refer to engine TM 5-2805-208-14.
b. Replace ground cable as illustrated in
figure 3-5.
3-28. 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 cause by the trialand-error method of replacing each capacitor
in turn until the cause of interference is located and eliminated.
3-13
Section VII. AIR INTAKE AND DISCHARGE SYSTEM
3-29. General
The air intake system of the rotary compressor consists of a blower air filter mounted on the right side of the air blower. The air
discharge system is comprised of a manifold
and air relief valve. Connected to the manifold
are two air hoses used for inflating. The air
relief valve is preset to discharge air when-
ever pressure in the air compressor rises
above 6.8 psi.
3-30. Blower Air Filter
a. Removal.
(1) Remove the weather hood and element as illustrated in figure 3-6.
Figure 3-6. Blower air filter removal and installation.
(2) If required, remove filter base.
b. Cleaning. Clean and inspect, replace element as required.
c. Installation. Install the air filter as illustrated in figure 3-6.
3-14
3-31. Air Relief Valve
a. Removal. Remove air relief valve from
90 degree elbow, (ref fig. 3-7).
dead-end and male fittings.
b. Cleaning and Inspection.
(1) Clean both dead-end and male fittings
with an approved solvent.
(2) Clean rubber washers with an approved solvent.
(3) Inspect both dead-end and male fittings for excess wear on the locking
lugs, cracks, and damaged threads.
(4) Inspect the rubber washers for cracks
and excess wear.
c. Installation.
(1) Insert the rubber washers into the
fittings.
(2) Thread the male fitting into the manifold.
(3) Twist and lock dead-end fitting into
the male fitting. If the dead-end fitting will not lock and is loose, replace
rubber washers.
(4) Secure safety chain to manifold.
Figure 3-7. Air relief valve and quick disconnect
fitting removal and installation.
b. Cleaning and Inspection.
(1) Clean air relief valve with an approved solvent.
(2) Inspect for damaged threads, cracks,
and other damage.
c. Installation. Install the air relief valve as
illustrated in figure 3-7.
3-32. Quick Disconnect Fittings
a. Removal.
(1) Remove dead-end fitting, remove
safety chain if required, figure 3-7.
(2) Remove male fitting from the manifold, figure 3-7.
(3) Remove rubber washer from both
3-33. Hose Assembly
a. Removal.
(1) Remove female fitting.
(2) Remove hose clamps.
(3) Remove hose adapters.
b. Cleaning and Inspection.
(1) Clean all metal components with an
approved solvent.
(2) Clean the air hose with an approved
detergent.
(3) Inspect all components for rust,
Check
cracks, and other damage.
rubber washer for excess wear.
c. Installation.
(1) Insert adapter into ends of hose.
(2) Secure adapter with hose clamps.
(3) Thread female fitting into one end
of each hose.
Section VIII. FUEL SYSTEM
3-34. General
The rotary compressor is equipped with a
2 1/2 gallon fuel tank made of 18-gage terneplate. A removable wire mesh strainer is located at the neck of the tank. The fuel tank
cap is vented and attached to the tank with
a safety chain. A 1/4 inch nylon fuel line is
attached to the fuel tank outlet and to the
engine fuel filter, (fig. 3-8).
3-35. Fuel line
a. Removal. Refer to figure 3-8 for removal of the fuel line.
3-15
Figure 3-8. Fuel line removal and installation.
3-16
b. Cleaning and Inspection.
(1) Clean fuel line and fitting with an
approved solvent.
(2) Inspect fuel line for cracks and deterioration.
c. Repair. As a field expedient repair, in
the event the fuel line becomes cut or broken,
pressure-sensitive tape may be wound around
the break in the fuel line.
d. Installation. Install fuel line as shown in
figure 3-8.
3-36. Fuel Tank
a. Removal.
(1) Remove fuel line at tank end and
drain into suitable container.
(2) Remove 1/4-20 nuts and screws as
shown in figure 3-8.
(3) Remove strainer and cap gasket as
shown in figure A, 3-9.
3-17
Figure 3-9. Fuel tank removal and installation.
3-18
b. Cleaning and Inspection.
(1) Clean fuel tank with an approved solvent. Fill tank and check for leaks.
(2) Clean tank strap with an approved
solvent. Do not soak tank strap in
solvent. Avoid solvent contact on
strap felt. If felt becomes deteriorated, replace.
(3) Clean strainer with an approved solvent. Inspect the wire mesh for obstructions, cracks, and deterioration.
(4) Clean and inspect fuel tank cap. Replace gasket if deteriorated, (fig. A,
3-9).
c. Installation.
(1) Replace fuel strainer and cap on tank.
(2) Position fuel tank straps, top and bottom, at the fuel outlet end. From the
bottom side insert 1/4-20 screw
through a 14 flat washer, bottom
strap, mounting bracket, top strap,
flat washer, and lock washer. Screw
1/4-20 nut only a few turns, (fig. B,
3-9) .
(3) Insert the fuel outlet end of the fuel
tank through the top and bottom
mounting straps. Finger tighten hardware, (fig. B, 3-9).
(4) Level fuel tank and mount top and
bottom mounting straps at the inlet
end. Assemble the hardware as previously stated and finger tighten,
(fig. B, 3-9).
(5) Position fuel tank as illustrated in figure B, 3-9, and tighten hardware,
making certain that a gap is maintained between the sides of the fuel
tank and the inside edge of all four
mounting brackets.
3-37. Engine Fuel Filter
a. Removal. Remove as shown in figure 310.
3-19
Figure 3-10.
Engine fuel filter removal and installation.
Remove fuel line nut and sleeve.
Remove 90 degree elbow.
Remove sediment bowl.
Remove engine fuel filter, making
certain the 1/4 NPT by 1 1/2 LG nipple is retained on the engine fuel
pump.
b. Cleaning and Inspection. Refer to engine
TM 5-2805-208-14.
(1)
(2)
(3)
(4)
3-20
c. Installation
(1) Screw fuel filter into 1/4 NPT by 11/2 LG nipple.
(2) Replace sediment bowl.
(3) Replace 90 degree elbow.
(4) Replace fuel line nut and sleeve.
3-38. Engine Fuel Pump
Refer to engine TM 5-2805-208-14.
Section IX. TIRES, TUBES AND WHEELS
3-39. General
The rotary compressor is equipped with two
pneumatic tube-type tires mounted on 3/4 inch
diameter spindles. The wheels are equipped
with ball bearings which are lubricated through
grease fittings located on the inner wheel half.
3-40. Wheel Assembly
a. Removal.
(1) Remove wheel from axle spindle as
shown in figure 3-11.
(2) Disassemble wheel as illustrated in
figure 3-12.
Figure 3.11. Wheel removal and installation.
Figure 3-12.
b. Cleaning and Inspection.
(1) Clean inner and outer wheel halves,
bearings and hardware in an approved
solvent. Inspect parts for cracks, corrosion, and other damage.
(2) Clean tires and inspect for cracks,
3-21
excess wear and deterioration.
(3) Clean tube; inflate and inspect for
leaks. Repair or replace tube as required.
c. Installation.
(1) Reassemble wheels, tire, and tube as
illustrated in figure 3-12.
(2) Install on rotary compressor is illustrated in figure 3-14.
Section X. VIBRATION AND SHOCK INSULATION
3-41.
General
The engine and blower frame are mounted
on four elastomer shock mounts.
These
shock mounts are fastened to the rotary compressor frame and provide protection against
shock loads imposed on the unit and reduce
engine vibration to a minimum.
3-42. Shock Mounts
a. Removal. Remove shock mounts as illustrated in figure 3-13.
Figure 3-13. Shock mounts removal and installation.
b. Cleaning and Inspection. Clean and inspect
shock mounts for cracks and deterioration.
c. Installation. Install shock mounts as illustrated in figure 3-13.
Section XI. FRAME
3-43. General
The frame is of an all-welded construction
and fabricated of steel tubing. The structure
is braced and provision is made for shockproof
mounting of the engine and blower frame assembly.
a. Removal.
3-22
(1) Remove blower, paragraph 5-14.
(2) Remove engine, paragraph 5-13.
(3) Remove blower and engine frame,
figure 3-14.
(4) Remove shock mounts, paragraph 342.
(5) Remove fuel tank, paragraph 3-36.
(6) Remove wheels, paragraph 3-40.
Figure 3-14. Frame disassembly and reassembly.
3-23
(2) Assemble shock mounts, figure 3-14.
c. Cleaning and Inspection.
(1) Clean frame with an approved solvent.
(2) Inspect for cracks, rust and misalignment, Remove rust and repaint
if required.
d. Reassembly.
(1) Assemble wheels, figure 3-14.
(3) Assemble blower and engine frame,
figure 3-14.
(4) Mount blower, paragraph 5-14.
(5) Mount engine, paragraph 5-13.
(6) Align coupling, paragraph 5-12.
(7) Mount fuel tank, paragraph 3-36.
(8) Assemble fuel line, paragraph 3-35.
Section XII. POWER PLANT
3-44. General
The military engine used on the rotary compresser is a 4-stroke cycle, overhead valve, aircooled engine. This engine is fully radio interference suppressed and fungus-proofed. The
3-24
engine will develop 3 HP at 3600 RPM. For all
Operator and Organizational Maintenance Instruction, refer to Engine Technical Manual
TM 5-2805-208-14.
CHAPTER 4
DIRECT AND GENERAL SUPPORT AND
DEPOT MAINTENANCE INSTRUCTIONS
Section I. GENERAL
4-1. S c o p e
4-2. Records and Report Forms
These instructions are published for the use
of direct and general support and depot maintenance personnel maintaining the Fuller model 2MSWB compressor, rotary air. They provide information on the maintenance of the
equipment, which is beyond the scope of tools,
equipment, personnel, or supplies normally
available to using organizations.
For record and report forms applicable to
direct and general support and depot maintenance, refer to TM 38-750.
Note. Applicable forms, excluding Standard Form
46, which is carried by the operator, shall be kept in
a canvas bag mounted on equipment.
Section II. DESCRIPTION AND TABULATED DATA
4-3. Description
❑
For a complete description of the compressor, rotary air, 60 CFM, 5.6 P. S. I., see paragraph 1-3.
4-4. Tabulated Data
a. General. This paragraph contains all the
overhaul data pertinent to direct and general
support and depot maintenance personnel.
b. Overhaul Data. For all overhaul data
pertinent to direct and general support of the
engine at this level, refer to TM 5-2805-208-14.
c. Compressor repair and replacement standards. Refer to table 4-1.
Table 4-1. Compressor Repair and Replacement Standards
Desired clearances
Component
Cylinder Bores
Inside diameter
Cylinder to impeller
clearance
IMPELLERS
Length tip-to-tip
Impeller diameter
Clearance between
impellers
Total clearance between
imp. hub and end
cover
SPUR GEARS
Backlash
Minimum
Maximum
4.250
4.252
2.996
2.244
Minimum
Maximum
0.003
0.004
0.005
0.011
0.003
0.005
0.0015
0.0050
Maximum allowable
wear and clearance
2.995
4.243
4-1
CHAPTER 5
GENERAL MAINTENANCE INSTRUCTIONS
Section I. SPECIAL TOOLS AND EQUIPMENT
5-1. Special Tools and Equipment
No special tools or equipment are required
by direct and general support and depot maintenance personnel for performing maintenance
on the rotary compressor.
5-2. Specially Designed Tools and
Equipment
No specially designed tools or equipment
are required by direct and general support
and depot maintenance for performing maintenance on the rotary compressor.
Section II. TROUBLE SHOOTING
5-3. General
This section provides information useful in
the diagnosing and correcting unsatisfactory
operation or failure of the rotary compressor
or any of its components. Each trouble symptom stated is followed by a list of probable
causes. The possible remedy recommended is
described opposite the probable cause.
For
engine field and depot maintenance troubleshooting, refer to TM 5-2805-208-14.
5-4. Air Compressor Output Pressure
Inadequate
Probable Cause
Possible Remedy
Air-relief valve defec- . . . . Adjust or replace airrelief valve, para 5-10.
tive or out of adjustment.
Possible Remedy
Probable Cause
Defective hose fitting . . . . Replace hose fitting gasket.
gasket.
5-5. Air Compressor Knocks
Possible Remedy
Probable Cause
Impellers are damaged. . . . Replace impellers, para
6-6.
Spur gears are dam- . . . . Replace spur gears, para
aged.
6-4.
Impeller bearings are . . . Replace impeller bearings,
para 6-5.
damaged.
5-6. Air Compressor Air Contains Oil
Possible Remedy
Probable Cause
Air compressor bearing . . . Replace air compressor
bearings, para 6-5.
seals leaking.
Gear case air vent . . . . . . Clean vent.
plugged.
Section III. RADIO INTERFERENCE SUPPRESSION
5-8. Interference Suppression Components
5-7. General
Refer to TM 11-483 for definitions, purposes, source and methods used to obtain
proper suppression.
Refer to engine TM 5-2805-208-14.
Section IV. REMOVAL AND INSTALLATION
OF MAJOR COMPONENTS
5-9. General
5-10. Air Relief Valve
The rotary compressor consists of several
major components; the air blower, engine,
shaft coupling, and air relief valve.
a. Maintenance and service beyond adjustment is not recommended. Should the air-relief valve not function properly after the best
possible service and adjustment, replace the
valve.
5-l
b. Adjustment.
(1) To adjust air-relief valve, remove
90 degree elbow.
(2) Install a one inch tee with the use of
a close nipple.
(3) Install the air-relief valve at one port
and a pressure gauge at the other.
(4) Install both deadend fittings to the
manifold.
(5) Start Engine. The pressure gauge
should indicate 7.5 P.S.I. and the airrelief valve should be fully opened.
(6) Remove the deadend fittings on the
manifold; the pressure gauge should
indicate 6.5 P.S.I. with no leakage
from the air-relief valve.
(7) To adjust the air-relief valve, remove
the hood and loosen the lock nut and
turn the adjusting screw counterclockwise until operational pressure
is 6.5 P.S.I. and the relief pressure
is 7.5 P.S.I. as shown by figure 5-1.
Figure 5-1. Air relief valve adjustment.
5-2
5-11.
FIGURE 5-2
Figure 5-2.
Figure 5-2. Manifold removal and installation.
b. Installation
5-12. Coupling
(1) Install manifold on compressor.
a. Removal
(2) Position compressor on the mounting
(1) Disconnect ground cable, figure 3-5.
plate, assemble and align coupling,
(2) Disconnect components as illustrated
figure 5-3.
in figure 5-4.
(3) Secure compressor.
Disassemble coupling as shown in fig(3)
(4) Install components as illustrated in
ure
5-3.
figure 5-2.
5-3
Figure 5-3. Coupling disassembly and reassembly.
5-4
Figure 5-4. Coupling removal and installation.
b. Installation.
(1) Install 5/8 bushing and half coupling
to compressor shaft.
(2) Install 3/4 bushing and half coupling
to engine shaft.
(3) Install rubber insert on air compressor side.
(4) Position engine and partly secure
hardware.
(5) Align coupling, figure 5-3, allowing
no more than 2 degree misalignment.
(6) Secure engine.
(7) Assemble components as illustrated
in figure 5-4 and figure 5-5.
5-5
F i g u r e 5-5. E n g i n e
5-6
removal
and
installation.
5-13. Engine
5-14. Air Compressor
a. Remove and install engine as described
in paragraph 5-12, figure 5-4.
b. Refer to engine technical manual for removal of all engine major components (TM
5-2805-208-14).
Remove and install air compressor as described in paragraph 5-11.
5-7
CHAPTER 6
COMPRESSOR REPAIR INSTRUCTIONS
6-1.
General
The air compressor has two figure eight impellers rotating in opposite directions. As each
lobe of an impeller passes the blower inlet, it
traps a quantity of air equal to exactly onefourth the displacement of the compressor.
This entrapment occurs four times per revolution, moving the entrained air around the
case to the blower outlet. Timing gears accurately position the impellers in relation to each
other, maintaining the minute clearances so
vital to the high volumetric efficiency of the
rotary positive blower.
6-2. Determining Proper Impeller
Clearances
a. The clearances between impellers are
measured at points 0-0 and c-c when the impellers are in the position shown in figure 6-1.
The impellers are viewed from the drive end
of the blower; always face the drive shaft
when determining clearances.
Figure 6-1. Determining proper impeller clearance.
b. To Determine Total Clearance.
(1) Place the impellers in the 0-0 position, figure 6-1.
(2) Measure the distance between 0-0
with a feeler gauge, figure 6-1.
(3) Rotate the impellers 90 degrees to
position c-c and measure distance between c-c.
(4) Add measurements 0-0 and c-c for
Desired clearance
total clearance.
.005-.011.
c. To Determine Correct Clearance. Divide
the total clearance evenly between points 0-0
and c-c.
6-3. Resetting Impeller Clearance
a. Impellers are held in time by taper pins
which secure the shaft and timing gears. To
re-time, it is necessary to remove only one taper pin, (fig. 6-2).
(1) Insert a short length of pipe over the
shaft, clearing the taper pin, and
drive the timing gear further into the
shaft. This will loosen the taper pin,
(fig. 6-3).
(2) Remove the taper pin, (fig. 6-4).
(3) With a gear puller, pull the gear
away from the blower so that the
front face of the gear is 1/16 of an
inch past the front face of the mating gear, figure 6-5.
(4) Determine the correct clearance,
paragraph 6-2.
(5) Insert shim stock of proper thickness
between the impellers (because the
unit is out of time, it will probably be
necessary to wedge the shim stock
into position by rotating the impellers).
(6) Place a short length against the unpinned gear and strike the pipe a
quick blow. This will drive the gear
further into the shaft, causing it to
turn relative to the shaft because of
the torque set up by the shim stock,
figure 6-3.
6-1
(7) Check clearances, figure 6-1.
(8) Repeat procedure until proper clearance is distributed between the impellers.
Note. It is not necessar that gear faces
line up precisely at the conclusion of this
operation.
Figure 6-2. Air compressor exploded.
6-2
Figure 6-3. Driving tinting gear further into the shaft.
Figure 6-5.
Timing gear removal.
Figure 6-4. Taper pin removal.
Figure 6-6. Bearing and headplate removal gear end.
6-3
b. Reassembly.
(1) Install taper pin by re-reaming the
original hold if the movement between the shaft and gear was negligable. If re-reaming fails to eliminate edges set up by retiming, the
hole must be re-drilled and reamed
for the next larger size taper pin.
(2) Recheck to be sure impeller clearances were maintained after taper pin
replacement.
(3) Replace gear case.
(4) Relubricate (refer to current lubrication order).
6-4. Timing Gears
a. Removal.
(1) Drain gear case of lubricant.
(2) Remove gear case.
(3) Remove taper pins by placing a short
length of pipe over the shaft, clearing the taper pin, and drive the timing gear further into the shaft. This
action will loosen taper pins, figure
6-3.
(4) Remove taper pins, figure 6-4.
(5) Remove timing gears with a gear
puller, figure 6-5.
b. Cleaning and inspection.
(1) Clean gear with an approved solvent.
(2) inspect gear for cracked and broken
teeth and excess wear.
c. Reassemble.
6-4
(1) Install gears to their original posi-
(2)
(3)
(4)
(5)
(6)
tion. Longitudinal taper pin holes
must be aligned.
Install taper pin in one gear only.
Retime the impeller as described in
paragraph 6-3.
Install second taper pin.
Replace gear case.
Lubricate, refer to current lubrication order.
Note. To facilitate positioning, factory
replacement gears are not drilled. These
holes must be drilled after the gears are in
proper position and the unit has been retimed.
6-5. Bearings
a. Removal.
(1) Remove compressor from unit, (para
5-14).
(2) Drain gear case.
(3) Secure compressor on work bench.
(4) Remove gear case.
(5) Remove timing gears, (para 6-4).
(6) Remove bearing plate, figure 6-6.
(7) Remove 1/4-20 hex head screw on
gear end headplate.
(8) Remove the gear end headplate by
striking the impeller shafts alternately with a brass punch as shown in figure 6-6. The gearend head plate will
separate from the impeller case.
(9) Remove both bearings as shown in
figure 6-7.
Figure 6-7.
Bearing removal drive end.
Figure 6-8. Bearing installation.
Figure 6-9. Impeller shaft assembly removal.
6-5
b. Inspect bearing for excess radial and end
play. Replace if required.
Caution: DO NOT CLEAN BEARINGS IN
SOLVENT. WIPE CLEAN WITH A CLEAN
CLOTH.
c. Installation
(1) Clean the bearing bore in the head
plate with an approved solvent (fig.
6-8).
(2) Clean the outer race of the bearing
with an approved solvent, but do not
submerge the bearing in the solvent,
(fig 6-8).
(3) Re-assemble headplate to impeller
(4) Spread a thin coat of Lot-tight bearing mount on the bearing bore in the
gear end headplate and on the outer
race of the bearing.
(5) Insert the bearings in the shaft and
press fit into position, using a short
length of pipe as the driving tool. The
inner race of the bearings must make
contact with the sleeves, (fig. 6-2).
(6) Replace spring washers if applicable,
figure 6-2.
6-6
(7) Replace bearing plate.
(8) Replace timing gears if applicable,
(para 6-4).
(9) Check timing and retime if required,
refer to paragraph 6-3.
(10) Replace gear case if applicable.
(11) Lubricate in accordance with the
current lubrication order.
6-6. Impeller Shaft Assembly
a. Removal
(1) Drain gear case.
(2) Remove gear case.
(3) Remove timing gears, (para 6-4).
(4) Remove bearing plate.
(5) Remove gear-end bearings, (para 65).
(6) Secure drive-end headplate to work
bench.
(7) Remove bearing plate and spring
washer.
(8) Remove impeller shaft assembly by
striking the impeller shaft with a
hammer and brass punch as illustrate
ed in figure 6-9.
b. Inspect the impellers excessive erosion
and other damage.
Figure 6-10.
Figure 6-11. Bearing installation.
6-7
c. Reassembly
(1) Assemble drive-end headplate to impeller case, insert dowel pins and
fasten headplate with 4 screws only,
do not tighten bolts down completely,
(2) Insert both impeller shaft assemblies,
figure 6-10.
(3) Assemble gear-end headplate and insert dowel pins.
(4) Insert bearings on both ends, (fig
6-11).
(5) Fasten gear-end headplate to impeller
6-8
case with four (4) screws only, do
not tighten completely.
(6) Assemble bearing plate to gear-end
and drive end.
(7) Assemble timing gears.
(8) Fasten all headplate bolts and torque
to 20 ft. lbs.
(9) Time impellers, refer to paragraph
6-2.
(10) Assemble gear case.
(11) Lubricate in accordance with current lubrication order.
APPENDIX A
REFERENCES
A-1.
Lubrication
LO 5-4310-270-15
LO 5-2805-208-14
C 9100-IL
Lubrication Order.
Lubrication Order.
Petroleum, Petroleum-Base products and Related Materials.
A-2. Painting
TM 9-213
Painting Instructions for Field Use.
A-3. Preventive Maintenance
TM 38-750
AR 750-5
Army Equipment Record Procedures.
Maintenance Responsibilities and Shop Operations.
A-4. Publication Indexes
DA Pam 310-4
Index of Technical Manuals, Technical Bulletins, Supply Manuals
(Types 7, 8, and 9), Supply Bulletins, Lubrication Orders, and
Modification Work Orders.
A-5. Maintenance
TM 5-2805-208-14
TM 5-4310-270-25P
Organizational DS and GS Maintenance Manual: (including Repair
Parts and Special Tool Lists).
Organizational, DS, GS and Depot Maintenance Repair Parts and
Special Tool Lists.
A-6. Radio Interference Suppression
TM 11-483
Radio Interference Suppression.
A-1
APPENDIX B
BASIC ISSUE ITEMS LIST
Section I. INTRODUCTION
B-1. Scope
Code
This appendix lists items which accompany the compressor or are required for installation, operation, or operator’s maintenance.
X1
B-2. General
This bask issue items list is divided into the
following sections:
a. Basic Issue Items-Section II. This section is a listing of accessories, repair parts,
tools, and publications required for operator’s
maintenance and operation, initially issued
with, or authorized for the
b . Maintenance and Operating SuppliesSection III. This section is a listing of maintenance and operating supplies required for
initial operation.
B-3. Explanation of Columns
X2
C
G
The following provides an explanation of
columns in the tabular list of basic issue items,
section II:
a. Source, Maintenance, and Recoverability
Codes (SMR), Column 1:
(1) Source Code indicates the selection
status and source for the listed item.
Source codes are:
Code
P
M
A
X
Explanation
Applied to repair parts which are stocked in
or supplied from GSA/DSA Army supply
system, and authorized for use at indicated
maintenance categories.
Applied to repair parts which are not procured or ticked but are to be manufactured
at indicated maintenance categories.
Applied to assemblies which are not procured
or stocked as such, but made up of two or
more units, each of which carry individual
stock numbers and descriptions and are
procured and stocked and can be assembled
by units at indicated maintenance categories.
Applied to parts and assemblies which are
not procured or stocked, the mortality of
which is normally below that of the ap-
Explanation
plicable end item, and the failure of which
should result in retirement of the end item
from the supply system.
Applied to repair parts which are not procured or stocked, the requirement for which
will be supplied by use of the next higher
assembly or components.
Applied to repair parts which are not stocked.
The indicated maintenance category requiring such repair parts will attempt to obtain them through cannibalization; if not
obtainable through cannibalization, such
repair parts will be requisitioned with supporting justification through normal supply
channels.
Applied to repair parts authorized for local
procurements. If not obtainable from local
procurement, such repair parts will be
requisitioned through normal supply channels with a supporting statement of nonavailability from local procurement.
Applied to major assemblies that are procured with PEMA (Procurement Equipment
Missile Army) funds for initial issue only
to be used as exchange assemblies at DSU
and GSU level or returned to depot supply
level.
Note. Source code is not shown on common hardware items known to be readily
available in Army supply channels and
through local procurement.
(2) Maintenance Code indicates the lowest category of maintenance authorThe
ized to install the listed item.
maintenance level codes are:
Code
C
O
Explanation
Operator/crew.
Organizational Maintenance.
(3) Recoverability Code indicates whether
unserviceable items should be returned
for recovery or salvage. Items not
coded are expendable. Recoverability
codes are:
Code
R
Explanation
Applied to repair parts and assemblies which
are economically reparable at DSU and
B-1
Code
Explanation
GSU activities and are normally furnished
by supply on an exchange basis.
Applied to high dollar value recoverable repair parts which are subject to special
handling and are issued on an exchange
basis. Such repair parts are normally repaired or overhauled at depot maintenance
activities.
Applied to repair parts specifically selected
for salvage by reclamation units because of
precious metal content, critical materials,
high dollar value reusable casings and
castings.
ized the operator/crew to have on hand or to
obtain as required. As required items are indicated with an asterisk.
i. Illustration, Column 9. This column is divided as follows:
(1) Figure number, column 9a, indicates
the figure number of the illustration
in which the item is shown.
(2) Item number, column 9b, indicates
the callout number used to reference
the item in the illustration.
This
b. Federal Stock Number, Column 2.
column indicates the federal stock number for
the item.
c. Description, Column 3. This column indicates the federal item name and any additional description required. A five-digit manufacturer’s or other service code is shown in
parentheses followed by the manufacturer’s
part number. Repair parts quantities included in kits, sets, and assemblies that differ
from the actual quantity used in the specific
item, are listed in parentheses following the
repair part name.
d. Unit of Issue, Column 4. This column indicates the unit used as a basis of issue, e.g.,
ea, pr, ft, yd, etc.
e. Quantity Incorporated in Unit Pack, Column 5. This column indicates the actual quantity contained in the unit pack.
f. Quantity Incorporated in Unit, Column 6.
This column indicates the quantity of the item
used in the equipment.
g. Quantity Furnished With Equipment,
Column 7. This column indicates the quantity
of an item furnished with the equipment in
excess of the quantity incorporated in the unit.
h. Quantity Authorized, Column 8. This column indicates the quantity of an item author-
B-4. Explanation of Columns in the Tabular List of Maintenance and Operating
Supplies–Section Ill.
T
u
B-2
a. Item, Column 1. This column contains
numerical sequence item numbers assigned to
each component application to facilitate reference.
b. Component Application, Column 2. This
column identifies the component application
of each maintenance or operating supply item.
c. Federal Stock Number, Column 3. This
column indicates, the federal stock number
for the item and will be used for requisitioning purposes.
d. Description, Column 4. This column indicates the item and a brief description.
e. Quantity Required for Initial Operation,
Column 5. This column indicates the quantity
of each maintenance or operating supply item
required for initial operation of the equipment.
f. Quantity Required for 8 Hours Operation,
Column 6. This column indicates the estimated
quantities required for an average eight
hours of operation,
g. Notes, Column 7. This column indicates
informative notes keyed to data appearing in
a preceding column.
Figure B-1.
B-3
Section II.
BASIC ISSUE ITEMS LIST
GROUP 31-BASIC ISSUE ITEMS
MANUFACTURER INSTALLED
3100-BASIC ISSUE ITEMS
Manufacturer or Depot installed
Case, maintenance and operational
manuals: Cotton duck, water repel
lant, mildew resistant
Manufacturer’s manual operation, or
ganizational, DS, GS, and depot main
tenance manual, TM 5-4310-270-15
Department of the Army operation, or
ganizational, direct and general sup
port maintenance manual, TM 5-2805
208-14
Hose Assembly Air 1 1/4 x 25 ft
(58626) 913-66-3-0773-79
Valve, Inflator (53477) 9927
Nozzle, Air (58626) B-7703-1
Hose Strap (01344) BN-2468
Starter, Assembly Rope
(97403) 9786E121
3200-BASIC ISSUE ITEMS
Troop installed or authorized
Wrench, open end adjustable, single
head 0 to 1.135 in Jaw opening 10
in. long
Extinguisher, fire: dry type charges
2 1/2 lb.
B-4
Section III
MAINTENANCE AND OPERATING SUPPLIES
Item
(2)
Component
application
(3)
Federal
stock number
(4)
Description
(5)
Qty rod
f/initial
oper.
(6)
(7)
Qty rod
f/8 hrs
oper.
Notes
Oil Lubricating:
1 qt. sealed
can as follows:
1
2
01 Engine
0101 Crankcase
03 Fuel Sys
0306 Tank
9150-265-9433(2)
9150 -265 -9425(2)
9150-242-7062(2)
9130-160-1817
50 Pneumatic equip.
3
6001 Crankcase Block,
Cylinder
Crankcase
9150-231-6639
9150-985-7232
9150-985-7234
OE30
OE10
OES
Fuel, gasoline
5 gal. can as
follows:
Gasoline, auto
motive combat
Oil lubricating:
5 gal drum as
follows :
Grade 2190
Grade 2075TH
Grade 211TH
5/8 qt
2.5 gals
(4)
(3)
2.28
gals (4)
(6)
(1) Includes qty of oil to
fill engine oil system as
follows :
5/8 qt crankcase
(2) See C9100-1L for additional data and requisitioning procedure.
(3) See current LO for
grade application and
replenishment intervals
(4) Tank capacity
(5) Average fuel consumption is .285 gals per
hour of continuous operation.
(6) Includes quantity of
oil to fill compressor oil
system as follows:
approximately 1/2 pt.
in crankcase.
B-5
APPENDIX C
MAINTENANCE ALLOCATION CHART
Section l. INTRODUCTION
C-1. General
a. This section provides a general explanation of all maintenance and repair functions
authorized at various maintenance levels.
b. Section II designates overall responsibility for the performance of maintenance operations on the identified end item or component. The implementation of the maintenance
tasks upon the end item or component will be
consistant with the assigned maintenance operations.
c. Section III lists the special tools and test
equipment required for each maintenance operation as referenced from section II.
d. Section IV contains supplemental instructions, explanatory notes and/or illustrations
required for a particular maintenance function.
C-2. Explanation of Columns in Section II
a. Functional Group Number. The function.
al group is a numerical group set up on a functional basis. The applicable functional grouping
indexes (obtained from TB 750-93-1, Functional Grouping Codes) are listed on the Maintenance Assignment in the appropriate numerical sequence. These indexes are normally set
up in accordance with their function and proximity to each other.
b. Component Assembly Nomenclature. This
column contains a brief description of the
components of each functional group.
c. Maintenance Functions and Maintenance
Categories.
This column lists the various
maintenance functions (A through K) and indicates the lowest maintenance category auThe
thorized to perform these operations.
symbol designations for the various maintenance categories are as follows:
C-Operator or crew
O-Organizational maintenance
F-Direct support maintenance
H-General support maintenance
D-Depot maintenance
The maintenance functions are defined as follows :
A-INSPECT :
Verify serviceability and detect
incipient electrical or mechanical
failure by close visual examination.
B-TEST:
Verify serviceability and detect
incipient electrical or mechanical
failure by measuring the mechanical or electrical characteristics with authorized standards.
Tests will be made commensurate with test procedures and
with calibrate tools and/or teat
equipment referenced in the
Maintenance Assignment.
Operations required periodically
C-SERVICE :
to keep the item in proper operating condition, i.e., to clean,
preserve, drain, paint, and replenish fuel, lubricant, hydraulic, and deicing fluids, or
compressed air supplies.
Regulate periodically to prevent
D-ADJUST :
malfunction.
Adjustments will
be made commensurate with adjustment. procedures and associated equipment adjustment
specifications.
Adjust two or more components of
E-ALINE :
an electrical or mechanical sys
tam so that their functions are
properly synchronized or adjusted.
F-CALIBRATE : Determine, check, or rectify the
graduation of an instrument,
weapon, or weapons system or
component of a weapons system.
Remove and install the same item
G-INSTALL :
for service or when required for
the performance of other maintenance operations.
Substitute serviceable components,
H-REPLACE :
assemblies and sub-assemblies
for unserviceable counterparts.
Restore to a serviceable condition
I-REPAIR :
by replacing unserviceable parts
or by any other action required
using available tools, equipment
and skills, including welding,
C-1
J-OVERHAUL:
K-REBUILD:
grinding, riveting, straightening, adjusting and facing.
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
authorizational, and technical
skills are available at that level.
Normally, overhaul as applied
to end items is limited to depot
maintenance level.
Restore to a condition comparably to new by disassembling to
determine the condition of each
component part and reassembling using serviceable, rebuilt,
or new assemblies, subassemblies, and parts.
d. Reference Note. This column, subdivided
into columns L and M, is provided for referencing the special tool and test equipment requirements (sec. III) and remarks (sec. IV)
that may be associated with maintenance.
functions (sec. II).
C-2
C-3. Explanation of Columns in Section III
a. Reference Code. This column consists of
a number and a letter separated by a dash.
The number references the T and TE requirements column on the Maintenance Assignment.
The letter represents the specific maintenance
function the item is to be used with. The letter is representative of columns A through K
on the Maintenance Assignment.
b. Maintenance Category.
This column
shows the lowest level of maintenance authorized to use the special tool or test equipment.
c. Nomenclature. This column lists the name
or identification of the tool or test equipment.
d. Tool Number. This column lists the manufacturer’s code and part number, or federal
stock number of tools and test equipment.
C-5. Explanation of Columns in Section IV
a. Reference Code. This column consists of
two letters separated by a dash, both of which
are references to section II. The first letter
references column M and the second letter
references a maintenance operation, columns
A through K.
b. Remarks. This column lists information
pertinent to the maintenance operation being
performed, indicated on the Maintenance Assignment section II.
—
Section II. MAINTENANCE ASSIC$NMENT
—.
18
o$a
:0
p5
01
0100
0102
03
0306
06
0615
13
1311
15
1501
22
2202
50
5000
5007
5008
5014
76
7603
_—
.-
Maintenance funcuors
A
—
Component
assembly
nomenclature
E
~
2-1
.
)NGINE
Engine Assembly:
Engine, gasoline . . . . . . . . . . . . . . . . . . . . .
Crankshaft:
Pulley, crankshaft . . . . . . . . . . . . . . . . . . .
‘UEL SYSTEM
Tank, Lines, Fittings:
Tank assembly, fuel . . . . . . . . . . . . . . . . . .
Line assembly, fuel . . . . . . . . . . . . . . . . . .
Strainer assembly, tank . . . . . . . . . . . . . . .
;LECTRICAL SYSTEM
Radio Interference Suppression:
Strap, ground . . . . . . . . . . . . . . . . . . . . . . .
VHEELS AND TRACKS
Wheel Assembly . . . . . . . . . . . . . . . . . . . . . . .
~RAME
Frame Assembly . . . . . . . . . . . . . . . . . . . . . .
4CCESSORY ITEMS
Accessory Items:
Hose, air
Inflator, air . . . . . . . . . . . . . . . . . . . . . . . .
‘NEUMATIC EQUIPMENT
Air Compressor Assembly . . . . . . . . . . . . . .
Compressor Drive Coupling . . . . . . . . . . . .
Air Intake Filter Assembly,
Air . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ~.
Air Receiver Valve &sembly,
Relief . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
URE FIGHTING EQUIPMENT
COMPONENTS
Fire Extinguishers:
Extinguisher, fire . . . . . . . . . . . . . . . . . .
.
B
E
—
‘;E
1
1 1
D
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Note reference
M
“ L
rods
32
and
quiprnent
Remarks
. . . .
A
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Section III. SPECIAL TOOL AND SPECIAL TEST EQUI 3MENT
Reference
code
Maintenance
level
I
ToId
number
Nomenclature
No special
tools required
–
Section IV. REMARKS
Ref erenee
code
A
Remarks
I
See TM 5-2805-208-14 for remarks. “
C-3
INDEX
paragraph
Air compressor:
Air contains oil . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Knocks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Output pressure inadequate . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Overheats . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Repair instructions:
Air compressor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Tabulated data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Vibrates excessively . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Air intake and discharge system:
Air hoses . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Compressor air filter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Manifold . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Air-relief valve . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Page
3-22
3-20
6-1
3-19
3-21
3-12
3-12
6-1
3-12
3-12
6-2
6-1
4-4
3-23
6-1
6-1
4-1
3-13
3-33
3-30
3-29
5-11
3-31,5-10
3-15
3-30
3-14
5-3
3-14,5-1
Capacities . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Cap, fuel tank . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Components, interference suppression . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Compressor air filter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Compressor repair and replacement standard . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Controls . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Corps of engineers identification plate . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Coupling shaft . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1-4
3-36
3-26
3-9,3-29
4-4
2-8
1-4
5-12
1-3
3-17
3-13
3-12,3-14
4-1
2-3
1-3
5-3
Data, tabulated. (See Tabulated Data)
Description and tabulated data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Differences in models . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Dimensions and weight . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Direct and general support and depot maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1-3,4-3
1-5
1-4
4-1
1-1,4-1
1-4
1-3
4-1
Engine and components:
Engine . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3-44
Fuel filter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-37
Fuel tank and fuel line . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-35,3-36
General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3-44
Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .: . . . . . . . . . . . 3-44
3-18
Fails to get fuel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2-11
Starting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2-12
Stopping . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Equipment:
2-3
Inspection and maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2-1
Unloading . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2-2
Unpacking new . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Field expedient repairs:
Fuel line . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Filter:
Compressor air . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. . . . . . . . . . . . . . . . . . . . .
Fuel tank . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Forms :
Field and depot maintenance report . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Operator and organizational maintenance record and report . . . . . . . . . . . . . . . . . . . . .
3-24
3-19
3-15,3-17
3-24
3-24
3-12
2-5
2-7
2-1
2-1
2-1
3-35
3-15
3-30
3-36
3-14
3-17
1-2
4-2
1-1
4-1
I-1
Frame . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Fuel system . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Fuel tank and fuel line . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Fuel tank cap, filter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Paragraph
3-43
3-34
3-35,3-36
3-36
Page
3-22
3-15
3-15,3-17
3-17
General maintenance instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
5-1
5-1
Hoses, air . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3-33
3-15
Identification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Inspection and servicing of equipment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Installation and operation instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Interference suppression components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1-4
2-3
2-l
3-26
1-3
2-1
2-1
3-13
Lubrication:
Detailed information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-4
3-3
General information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3-1
3-1
Manifold . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Military standard engine:
Identification plate . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Models, differences . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Movement to new worksite . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
5-11
5-3
1-4
1-5
2-6
1-3
1-4
2-3
Operating of equipment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Operations:
In dusty or sandy areas . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
In extreme cold (below 0°F. ) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
In high altitudes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
In saltwater areas . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Under rainy or humid conditions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Under usual conditions . . . . . . . . . . . . , . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Operational and organizational maintenance instructions . . . . . . . . . . . . . . . . . . . . . . . .
Operator maintenance:
Record and report fonts.... . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Operator’s daily maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Organizational maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2-10
2-5
2-15
2-13
2-14
2-18
2-17
2-13
3-1
2-7
2-7
2-7
2-8
2-8
2-7
3-1
1-2,4-2
3-6
3-1
1-1,4-1
3-4
3-1
Pneumatic tire . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Power plant . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Preventive maintenance services:
Daily Preventive maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Organizational . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Quarterly preventive maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3-39
3-44
3-21
3-24
3-6
3-5
3-1
3-7
3-4
3-4
3-1
3-6
Quarterly preventive maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3-7
3-6
Radio interference:
General methods used to attain proper suppression . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Interference suppression components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Removal and installation of major components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Repair and replacement standards . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Repair instructions, air compressor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3-25
3-26
5-9
4-4
6-1
3-13
3-13
5-1
4-1
6-1
1-1
1-1
3-6
3-8
3-7
2-1
3-4
3-9
3-6
2-1
Scope . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Services:
Daily preventive maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Operator maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Quarterly preventive maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Service upon receipt of equipment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
I-2
Shock mounts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Special tools and equipment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Starting engine . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Stopping engine . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Tabulated data, field and depot maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Tires, tubes, wheels:
General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Wheels and tires . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Troubleshooting:
Air compressor:
Air contains oil . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Knocks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Output pressure inadequate . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Troubleshooting, operator, and organizational maintenance:
Air compressor:
Air contains oil . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Knocks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Output pressure inadequate . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Tubes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Paragraph
3-41
3-1, 5-1
2-11
2-12
Page
3-22
3-1, 5-1
2-5
2-7
4-4
4-1
3-39
3-40
3-21
3-21
3-22
3-20
3-19
3-12
3-12
3-12
5-6
5-5
5-4
5-3
3-40
5-1
5-1
5-1
5-1
3-21
Unloading equipment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Unpacking new equipment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2-1
2-2
2-1
2-1
Valve, air-relief . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Vibration and shock insulation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3-31, 5-10
3-41
3-14, 5-1
3-22
1-4
Weight and dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Wheels and tires . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-40
1-3
3-21
I-3
By Order of the Secretary of the Army:
Official:
KENNETH G. WICKHAM,
Major General, United States Army,
The Adjutant General.
HAROLD K. JOHNSON,
General, United States Army,
Chief of Staff.
Distribution:
Active Army:
USASA (2)
ACSI (1)
DCSLOG (1)
CNGB (1)
TSG (1)
CofEngrs (3)
CC-E (1)
Dir of Trans (1)
CofSptS (1)
USAMB (1)
USA Arty Bd (2)
USA Armor Bd (2) USAIB (2)
USARADBD (2)
USAAESWBD (2)
USAAVNTBD (2)
USCONARC (3)
OS Maj Cored (5) except
USARJ (1)
USASETAF (2)
USAMC (1)
USACDCEC (10)
USAMECOM (46)
MDW (1)
Armies (2)
corps (2)
USAC (1)
Div (2)
Engr Bde (1)
USMA (2)
Svc Colleges (2)
Br Svc Sch (2) except
USAES (3)
Gen Dep (10)
Engr Dep (10)
Army Dep (2) except
TOAD (3)
USA Tml Cored (2)
Army Tml (1)
Div Engr (2)
Engr Dist (2)
Engr Cen (5)
Army Attaches (1)
Mil Man (1)
AMS (3)
MAAG (1)
JBUSMC (1)
USACOMZEUR (2)
Engr FLDMS (2)
Ft Knox FLDMS (10)
USA Engr R&D Lab (3)
Fld Cored, DASA (8)
USAREUR Engr Proc Cen (2)
USAREUR Engr S UP Con Agcy (10)
Units org under fol TOE :-2 ea. UNOINDC
5-15
5-16
5-48
5-64
6-97
5-145
5-148
5-155
5-237 (5)
5-262 (5)
5-267 (1)
5-278 (5)
5-279
5-500(EA, EB, HN)
7
29-1
29-11
29-15
29-16
29-17
29-21
29-25
29-26
29-27
29-35
29-37
37
39-51
39-61
NG: N o n e .
USAR: Same as Active Army except allowance is one (1) copy for each unit.
For explanation of abbreviations used, see AR 320-50,
U.S. GOVERNMENT PRINTING OFFICE:
1987 0-181-421 (60314)
TM 5-4310-270-15
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