TM-55-6695-217-13
T.O. 33D2-10-10-41
TM 55-6695-217-13
TECHNICAL MANUAL
OPERATION AND MAINTENANCE INSTRUCTIONS
WITH ILLUSTRATED PARTS BREAKDOWN
TESTER, OXYGEN MASK,
HEADSET, MICROPHONE AND FLASH GOGGLES
TYPE MQ.1A, PN 1854
NSN 6695-01-097-0441
THIS TECHNICAL MANUAL IS A REPRINT OF AIR FORCE T.O.
33D2-10-10-41, 1 NOVEMBER 1980, INCLUDING CHANGES 1
THROUGH 4.
DEPARTMENT OF THE ARMY
27 AUGUST 1986
TO 33D2-10-10-41
TM 55-6695-217-13
OPERATION AND MAINTENANCE INSTRUCTIONS
WITH ILLUSTRATED PARTS BREAKDOWN
TESTER, OXYGEN MASK,
HEADSET, MICROPHONE AND FLASH GOGGLES
TYPE MQ-1A, PN 1854
NSN 6695-01-097-0441
REPORTING ERRORS AND RECOMMENDING
IMPROVEMENTS
You can help improve this manual. If you find any mistakes or if you know of a
way to improve the procedures, please let us know. Mail your letter or DA Form
2028 (Recommended Changes to Publications and Blank Forms), or DA Form
2028-2 located in the back of this manual direct to: Commander, US Army
Aviation Systems Command, ATTN: AMSAV-MPSD, 4300 Goodfellow Blvd., St.
Louis, MO 63120-1798. A reply will be furnished directly to you.
THIS TECHNICAL MANUAL IS A REPRINT OF AIR FORCE T.O. 33D2-10-1041, 1 NOVEMBER 1980, INCLUDING CHANGES 1 THROUGH 4.
TO 33D2-10-10-41
TM 55-6695-217-13
TABLE OF CONTENTS
Section
I
INTRODUCTION AND GENERAL INFORMATION ......................................................
Page
1-1
1-1. Introduction ...........................................................................................................
1-2. Purpose ...............................................................................................................
1-3. Description ...........................................................................................................
Table 1-1. Leading Particulars......................................................................................
Figure 1-1. Oxygen Mask, Headset, Microphone and Flash Goggles
Tester, MQ-1A ........................................................................................
Figure 1-2. Control Panel Assembly ............................................................................
1-1
1-1
1-1
1-1
II
SPECIAL TOOLS AND TEST EQUIPMENT ................................................................
2-1
III
PREPARATION FOR USE AND SHIPMENT ................................................................
3-1
3-1. Preparation for Use ...............................................................................................
3-2. Preparation for Shipment ......................................................................................
3-1
3-1
OPERATION INSTRUCTIONS .....................................................................................
4-1
4-1. Theory of Operation .............................................................................................
4-2. Operation Instructions ..........................................................................................
4-1
4-1
MAINTENANCE INSTRUCTION& ................................................................................
5-1
5-1. Operational Checkout ...........................................................................................
5-2. Inspection and Preventive Maintenance.5-1
5-3. Troubleshooting ...................................................................................................
Table 5-1. Troubleshooting Guide ...............................................................................
5-4. Repair ..................................................................................................................
5-5. Leakage Test ........................................................................................................
5-6. Calibration ............................................................................................................
5-1
SCHEMATIC DIAGRAMS ............................................................................................
6-1
Figure 6-1. Schematic Diagram. of Oxygen Mask, Headset, Microphone and Flash Goggles Tester, Type MQ-1A ......................................
6-1
ILLUSTRATED PARTS BREAKDOWN ........................................................................
7-1
7-1. General.................................................................................................................
7-1
7-2. Maintenance Parts List .........................................................................................
Figure 7-1. Tester Case and Panel Assemblies ...........................................................
Figure 7-2. Circuit Board Assembly ..............................................................................
7-1
7-2
7-4
IV
V
VI
VII
Change 4 i/(ii blank)
1-1
1-2
5-1
5-1
5-1
5-2
5-2
TO 33D2-10-10-41
TM 55-6695-217-13
SECTION I
INTRODUCTION AND GENERAL INFORMATION
microphones
used
with
the
AN
A1C-10
Intercommunication Set or similar systems. The tester
also provides regulated power for the EEU-2P flash
protection goggles.
1-1. INTRODUCTION. This technical manual contains
operating and maintenance instructions and an
illustrated parts breakdown for the Oxygen Mask,
Headset, Microphone and Flash Goggles Tester, Type
MQ-1A, National Stock Number 6695-01-0970441. The
MQ-1A Tester is manufactured by Winding Specialists
Co., Inc., Wichita, KS under part number 1854.
1-3. DESCRIPTION. (See figure 1-1.) The tester is contained in a portable case that requires only two
external connections: 1) connection to a supply of
breathing oxygen adjusted to 450 psi and 2) connection
of the power cord to 115 volt, 60 Hz electrical power.
All operating controls and instrumentation are located on
the control panel and are accessible with the cover
opened. Sufficient space Is provided between the
closed cover and the control panel to permit storage of
connecting cables, power cord and oxygen hose when
not in use. Additional physical characteristics and
specifications are provided in subsequent paragraphs
and Table 1-1.
1-2. PURPOSE.
The MQ-1A Tester (hereinafter
referred to as tester) is a preflight tester for the
MS22001 oxygen mask and similar oxygen masks and
the P series helmet to discover evidence of leakage or
other malfunctions. It duplicates the oxygen, flash
goggles and communications system installed on
aircraft, except that this unit can be made available in
personnel areas. The tester performs "talk out" checks
of headsets and mask microphones, and of headset
Table 1-1. Leading Particulars.
Input voltage
Oxygen supply
Dimensions
Weight
115 VAC, 60 HZ
450 PSI
14 in. long x 8 3/4 In. wide x 10 in. high
15 pounds
Figure 1-1. Oxygen Mask, Headset, Microphone and Flash Goggles Tester MQ-1A
1-1
TO 33D2-10-10-41
TM 55-6695-217-13
Hose assembly (13) connects the MS22001 mask,
similar oxygen masks and the P-series helmet to the
tester.
a. Case Assembly. The case assembly consists of
an aluminum cover and base joined by two hinges and
two latches. Split hinges permit the cover to be
completely separated from, the base if desired. The
case assembly also includes four rubber feet and a
carrying handle. The latches provide sufficient seal
pressure to result in a weather resistant. rain proof
case. The case assembly is finished in a weather
resistant black epoxy paint. Testers can be stacked
during storage.
c. Communication Equipment. A power supply
changes 115 volt 60 Hz alternating current into 28 volt
direct current. The power supply consists of an ON-OFF
toggle switch (8). a 1 amp cartridge type replaceable
fuse (6). a power indicator light (7) that illuminates
when there is power in the test set. a power cable
assembly (1). power transformer assembly . and filters
for the direct current to prevent noticeable alternating
current ripple from being heard in the communication
equipment. An audio frequency amplifier amplifies
microphone signals for the "talk out" check of the
headset and microphone. Suitable connecting cables
allow Headset-Microphone H-78/ AIC, Headset HS-33A, Microphone M-15/UR or similar communication
equipment to be connected to the tester. EEU-2P Flash
Protection Goggles are provided regulated 28 vdc
electrical power through suitable connection cables.
b. Oxygen Supply and Control Equipment. A tee
fitting (9) provides two inlet connections between the
oxygen supply cylinder and the tester. Oxygen inlets
are protected by caps. Oxygen pressure gauge (11)
measures oxygen cylinder pressure from0 to 500 psi.
Visual indication of oxygen flow is provided by a blinker
type oxygen flow regulator (10). A type A-14 diluter
demand, pressure breathing type of oxygen regulator
(12) regulates the flow of oxygen and mixes oxygen with
ambient air to a specified ratio. The operating pressure
range of the oxygen regulator is from 50 to 500 psi.
LEGEND
1.
2.
3.
4.
5.
6.
7.
8.
POWER CABLE
MICROPHONE INDICATOR LIGHT
CABLE ASSY, U92A/U
CABLE ASSY, U61/U
CONNECTOR, JJ-033
FUSE
POWER INDICATOR LIGHT - RED
ON-OFF SWITCH
9.
10.
11.
12.
13.
14.
TEE INLET FITTING
OXYGEN FLOW INDICATOR
OXYGEN PRESSURE GAUGE
OXYGEN REGULATOR
HOSE ASSY
CABLE ASSY, S-830
Figure 1-2. Control Panel Assembly
1-2
TO 33D2-10-10-41
TM 55-6695-217-13
SECTION II
SPECIAL TOOLS AND TEST EQUIPMENT
Not applicable.
SECTION III
PREPARATION FOR USE AND SHIPMENT
3-1. PREPARATION FOR USE. Prepare the tester for
use as follows:
a. Carefully remove the tester from shipping
container(s) as required and remove any extraneous
cushioning material used to protect the control panel
during shipment.
k. Connect external oxygen supply to one inlet of
tester inlet fitting and securely cap the other inlet to
withstand pressure of 450 psi.
l. Set A-14 regulator to NORMAL and open
oxygen supply shutoff valve; allow oxygen pressure to
build up to 450 psi.
b. Inspect the case assembly for evidence of
damage or breakage and make sure the cover closes
and latches securely.
m. Connect power cable to 115 volt, 60 Hz power
source. Tester is now ready for operation.
c. Check instruments and controls to assure all
attaching parts are tight.
3-2. PREPARATION FOR SHIPMENT. (See figure
1-1.) Prepare tester for shipment as follows:
d. Operate controls and switches to determine
positive action.
e. Inspect cables and jacks for evidence of
damage.
f. Inspect oxygen hose assembly for kinks,
abrasion or other damage.
g. Check condition of fuse and name and data
plates.
a. Accomplish steps b thru h of paragraph 3-1 to
assure that tester is in good condition at time of
shipment.
b. Wrap oxygen hose assembly (13) and cables (1,
3, 4, 14) with suitable material to prevent damage to
inside of cover or to panel surface during shipment and
stow cables and hose between cover and panel. Latch
cover securely.
c. Pack tester in accordance with packing method
WARNING
4Q.
Do not use oil or grease on
oxygen equipment. Oil, even in
minute quantities, coming In con
tact with oxygen, may cause an
explosion. Dust, lint or fine metal
particles (also filing) are also
dangerous.
h. Inspect tester for cleanliness; tester must be
free of oil and dirt.
i. Following satisfactory visual inspection, prepare
tester for operation In accordance with subsequent
steps.
(1) Enclose tester in weather resistant box of
paperboard per PPP-B-636, Type CF, with suitable
dunnage such as microfoam per MIL-P-11 6 if loose fit.
Include dessicant per MIL-D-3464, Type 1, 2 or 3, and
indicator card. Seal box with shipping tape.
(2) Enclose box within aluminized vapor
barrier bag per MIL-P-131B, evacuate air from bag and
heat seal bag.
(3) Enclose package In a second weather
resisbox and seal box with non-asphaltic reinforced
shipping tape.
Change 4 2-1/(3-1/3-2 blank)
TO 33D2-10-10-41
TM 55-6695-217-13
SECTION IV
OPERATION INSTRUCTIONS
4-1. THEORY OF OPERATION. (See figure 1-1.)
Three separate personnel equipment items are tested by
separate systems within the tester.
a. Oxygen System. The oxygen system contains
or simulates an aircraft personnel oxygen system. The
system supplies breathing oxygen to the mask under
test through oxygen hose assembly (13). Oxygen flow
indicator (10) indicates flow to the mask by closing;
blinker opens to show flow interruption.
b. Headset and Microphone System. This system
amplifies electrical impulses from a microphone under
test and supplies the amplified signal to a headset under
test to test operation of both units.
c. Flash Goggle System. This system supplies 28
vdc electrical power to EEU-2P Flash Protection
Goggles through cable connector (14) to check that the
goggle lens become transparent with power applied.
4-2. OPERATION INSTRUCTIONS. (See figure 1-1.)
Operation of the separate systems within the tester are
described separately after startup.
a. Tester Startup. Set ON-OFF switch (8) to ON;
red POWER indicator (7) should come on.
b. Oxygen System. Operate the oxygen system to
test MS22001 or similar oxygen mask as follows:
(1) Set regulator (12) to NORMAL position.
(2) Connect oxygen mask hose to oxygen
hose assembly (13).
(3) Rotate regulator control to 43M position.
(4) Don headgear and mask to simulate flight
conditions.
(5) Exhale
indicator 10).
slowly;
observe
oxygen
flow
c. Headset and Microphone System.
Operate
tester to test headset-microphone combinations as
indicated by equipment noted in step 1, 2 or 3. Step 4 is
applicable to all combinations.
(1) Connect
Headset
HS-33A
and
Microphone M-33/ AIC to cable connector U61/U (4).
(2) Connect Headset-Microphone H-78B/AIC
to cable connector U92A/U (3).
(3) Connect microphone M-15/R to panel
mounted connector JJ-033 (5). Disconnect microphone
to U92A /U when connection is made to JJ-033.
(4) Depress handle switch if using hand-held
microphone; microphone control indicator light should
illuminate if microphone switch is functioning properly.
Speak into microphone; voice will be heard in headset if
headset and microphone are operating properly.
d. Flash Goggle System. Connect power cable
from EEU-2P Flash Protection Goggles to cable
connector S-830 (14); goggles (opaque without electrical
power) shall become transparent when power is applied.
e. Tester Shutdown. At completion of testing
accomplish steps of shutdown procedure that are
applicable to system used.
(1) Disconnect headset,
goggles from applicable connectors.
microphone
and
(2) Rotate regulator control (12) to NORMAL
position and disconnect oxygen system hose (13) from
mask hose.
(3) Set ON-OFF switch (8) to OFF and
disconnect power cable from power source.
(a) If blinker opens no leak.
(b) If blinker remains closed mask leaks
and needs adjustment or repair in accordance with
applicable technical order.
(6) Rotate regulator control (12) to 45M
position.
(7) Exhale slowly; inhalation valve is
operating satisfactorily if no resistance to exhalation is
encountered.
Troubleshoot and repair mask in
accordance with applicable technical order if resistance
to exhalation is evident.
(4) Shut off external oxygen supply and
disconnect supply from inlet fitting (9).
(5) Cap inlet fitting to prevent entry of foreign
material.
(6) Coil cables (3, 4 and 14), power cable (1)
and oxygen system hose (13) and store all under cover
on face of tester.
Change 4 4-1/(4-2 blank)
TO 33D2-10-10-41
TM 55-6695-217-13
SECTION V
MAINTENANCE INSTRUCTIONS
5-1.
OPERATIONAL CHECKOUT.
Accomplish
operational checkout of tester in accordance with
inspection procedure that follows. Refer to paragraph 4
-2 and perform all steps that are applicable to system
affected by repair. Troubleshoot and repair testers
shown defective by operational check.
5-2.
INSPECTION AND PREVENTIVE MAINTE
NANCE. Visually inspect tester prior to and after each
use as follows:
a. Make sure that oxygen tee inlet fitting is capped
all times external oxygen supply is not connected to
tester to avoid contamination.
tester with clean soft cloth moistened with water and
castile soap.
c. Check oxygen hose assembly and electrical
cables for fraying, abrasion and other damage,
Accomplish operational checkout of tester as functional
test any time operation of tester is suspect and
subsequent to a repair that could affect the function of a
system. Periodic lubrication of tester components are
not required.
5-3. TROUBLESHOOTING. Troubleshoot tester in
accordance with instructions provided in Table 5-1. The
table indicates possible troubles, probable causes and
recommended remedial action.
b. Inspect tester for cleanliness, completeness and
general appearance. Clean dirt, oil and grease from
Table 5-1. Troubleshooting Guide.
5-4.
REPAIR.
Subsequent paragraphs provide
maintenance guidance for tester disassembly,
replacement of parts, requirements for testing after
repair, repair of finish and assembly instructions.
b. Replacement of Parts.
Defective oxygen
regulators, flow indicators, pressure gauges or tubing
shall be replaced by an oxygen equipment specialist.
Defective electrical components shall be repaired or
replaced by a qualified electrician.
a. Disassembly. Disassemble tester only to extent
required to accomplish required maintenance. Refer to
Illustrated Parts Breakdown, Section VII; determine
order of disassembly by inspection of illustrations and
parts list.
Change 4 5-1
TO 33D2-10-10-41
TM 55-6695-217-13
WARNING
•
•
c. Accomplish a leakage test of the assembled test
equipment. The leakage rate of the test equipment
must be subtracted from the leakage rate experienced
after the tester is included in the test setup.
Zinc Chromate primer is toxic to skin,
eyes and respiratory tract. Us In a well
ventilated area.
Avoid prolonged
breathing of vapors. Avoid eye and
repeated skin contact. Keep away
from sparks and flames.
d. Include tester In test setup by attaching the
supply connection line to one inlet of the tester tee inlet
fitting. Make sure the other inlet Is securely capped.
e. Open line shut-off valve and then the oxygen
supply shut-off valve.
Paints,
primers,
lacquers
and
varnishes must be handled carefully
and used only in a well ventilated
approved area.
Avoid prolonged
breathing of vapors. Avoid eye and
repeated skin contact. Keep away
from spark and flames.
f. Adjust the oxygen supply pressure regulator
until line pressure gauge indicates 450 psi.
c. Repair of Finish. Touch up finish as required
with zinc chromate primer, MIL-P-6889, and black semigloss enamel, MIL-E-7729.
d. Assembly.
Assemble tester in reverse of
disassembly order as determined by inspection of
Illustrated Parts Breakdown illustration and parts list.
5-5. LEAKAGE TEST. Leakage test shall be made at
atmospheric pressure of 28 to 32 inches of mercury at
temperature of 77 degrees F, plus or minus 18 degrees
F, and at a relative humidity of 80 percent or less. Tests
performed with atmospheric pressure or temperature
substantially different from these values shall have the
proper allowance made for the change In instrument
readings. Oxygen used for test purposes should be
commercial grade breathing oxygen or per Federal
Specification BB-O-925, Type 1, Grade A. Perform
leakage test as follows:
a. Accomplish operational checkout for oxygen
system to assure tester is functional.
b. Assemble test setup consisting of an external
oxygen supply, an oxygen shut-off valve, an oxygen
supply pressure regulator set to deliver 450 psi, an
oxygen pressure regulator gauge, a line shut-off valve, a
line pressure gauge calibrated to read in 1 pound
divisions and a suitable line to connect to the tester.
g. Close line shut-off valve and note the time. At
the end of 7 minutes the line pressure gauge shall
indicate 400 psi minimum. If the reading is less than
400 psi, leakage within the oxygen system of the tester
is indicated. Use Leak Tec, manufactured by American
Gas & Chemical Co., (MIL-L-25567), NSN 6850-00-6211850, or soap and water solution around each
connection to determine the location of leak.
5-6. CALIBRATION. The tester does not require
calibration; however, some components of the tester
may require calibration. The oxygen cylinder pressure
gauge and oxygen regulator may be calibrated as
follows:
a. Oxygen Cylinder Pressure Gauge. Compare
pressure reading of suspect gauge with those of a
known accurate gauge, with both connected to same
oxygen supply. If the pointer of oxygen pressure gauge
under test is within 10 percent of full scale with pressure
applied, and the pressure gauge indicates zero pressure
when the oxygen pressure is removed, the gauge may
be regarded as calibrated.
b. Oxygen Regulator. Type A14 oxygen regulators
may be calibrated by those activities which possess the
required equipment to meet the limits specified in TO.
15X6-3-2-23, paragraphs 3.8a, 3.8b (10,000 ft only), and
4.28b. If the oxygen regulator fails to meet these
requirements, it should be replaced by qualified
personnel. The leakage test outlined in paragraph 5-5
shall be performed on the tester oxygen system after
any repair or replacement of parts within that system is
completed.
Change 4 5-2
TO 33D2-10-10-41
TM 55-6695-217-13
SECTION VI
SCHEMATIC DIAGRAMS
Figure 6-1. Schematic Diagram of Oxygen Mask, Headset, Microphone and Flash Goggles Tester, Type MQ-1A
Change 3 6-1/(6-2 blank)
TO 33D2-10-10-41
TM 55-6695-217-13
SECTION VII
ILLUSTRATED PARTS BREAKDOWN
7-1. G ENERAL. This section illustrates and lists
assemblies and parts of the tester in disassembly
sequence insofar as drawing order permits.
The
Illustrated Parts Breakdown (IPB) consists only of a
Maintenance parts List (MPL) since a Numerical Index
and Reference Designation Index are not required for
the number of parts listed in this publication. Reference
designations are provided within parentheses with
applicable indexes on illustrations of the IPB or directly
upon components of printed circuit board assemblies.
on the same line. Commercial parts identified by NONE
may be procured from any source.
A list of
manufacturers identified by FSCM listed in this MPL
follow. 'Codes, names and addresses are in accordance
with Cataloging Handbooks H4-1 and H4-2.
7-2. MAINTENANCE PARTS LIST. The MPL contains
a breakdown of the tester into assemblies and parts that
have maintenance significance.
e. Qty Per Assy Column. Quantities listed in this
column are in the case of assemblies the total quantity
per equipment at the location indicated; however, the
component parts indented under the assemblies are the
quantity per one assembly.
a. Figure and Index Number Column.
Index
numbers are assigned to a multiple number of parts.
One index number identifies each grouping.
b. Part Number Column. The contractor, vendor
or Government standard part number is listed in this
column. Equivalent commercial parts may be used.
c. Federal Supply Code for Manufacturers
(FSCM). This column provides the FSCM for the
manufacturer of the part identified by the part number
FSCM
04713
05820
06540
07263
07497
12040
13103
16428
17357
30150
MANUFACTURER LIST BY FSCM
NAME AND ADDRESS
Motorola Inc
Semiconductors
Phoenix, AZ
Wakefield Engineering Inc
Wakefield, MA
Amaton Electronic Hdwe
Div of Mite Corp
New Haven, CT
Fairchild Semiconductor Div
Mountain View, CA
Stancor Corp
Essex International
Chicago, IL
National Semiconductor Corp
Danbury, CT
Thermalloy Co
Dallas, TX
Belden Corp
Richmond, IN
Elco Webster Corp
Boston, MA
Winding Specialists Co Inc
1225 Wellington Place
Wichita, KS 67201
d. Description Column.
Part descriptions are
indented to illustrate the relationship within the overall
equipment of one part or assembly to another part or
assembly. Attaching parts are identified in this column
by the symbol (AP).
f. Usable On Code Column. This column contains
no entries in this publication since no part variations
exist within the tester.
g. Source, Maintenance and Recoverability (SMR)
Code Column. SMR codes have not been furnished at
the date of publication. Should SMR codes be provided
at a later date, they will be added at the next change or
revision.
MANUFACTURER LIST BY FSCM
FSCM
NAME AND ADDRESS
58873
71400
71590
72853
80183
82389
83330
86684
90201
91802
92194
Change 1 7-1
Sylvania, GTE Inc
New York, NY
Bussmann Mfg Co
St Louis, MO
Centralab Electronics
Milwaukee, WI
G. C. Electronics Co.
400 S Wyman St
Rockford, IL 61101
Sprague Products Co
North Adams, MA
Switchcraft Inc
Chicago, IL
Herman H. Smith Inc
812 Snediker Ave
Brooklyn, NY 11207
RCA Corp
Harrison, NJ
Mallory
Indianapolis, IN
Industrial Devices
Edgewater, NJ
Alpha Wire Corp
Elizabeth, NJ
TO 33D2-10-10-41
TM 55-6695-217-13
Figure 7-1. Tester Case and Panel Assemblies
Change 1 7-2
TO 33D2-10-10-41
TM 55-6695-217-13
FIGURE
AND
INDEX NO.
7-1
-1
-2
-3
-4
-5
-6
-7
-8
-9
- 10
- 11
- 12
- 13
- 14
- 15
- 16
- 17
- 18
- 19
- 20
- 21
- 22
- 23
- 24
- 25
- 26
- 27
- 28
- 29
- 30
- 31
- 32
- 33
- 34
- 35
PART NO.
FSCM
1854
30150
17238
1854-100
1854-10
1854-11
1854-12
1854-13
1854-14
MS35207-263
MS22055A36
184
MS35207-263
00-7038-017217-001
MS35207-215
MS35649-242
MS35338-40
1854-2
8242-A-1032-16
MS35207-263
1854-300
1854-310
1854-320
AN822-5D
AN825-5D
AN804D5
AN924-5D
1854-200
MS24629-12
TYPE A-14
8239-A-1032-16
MS35207-263
AN6021-1B
MS35216-29
AN6029-1
MS35216-29
28V-PSB
2800A5
1050-C1
COML
COML
COML
COML
R-6
P6469
MS35207-263
MS35337-81
MS35650-302
HJM
AGX-2
3221
1174
1243/4
U-61/U
U-92A/U
S-830
8228-A-103-16
MS35207-263
MS35207-263
MS35337-81
MS35650-302
JJ-033
MS35058-22
1854-1
16428
30150
30150
30150
30150
30150
30150
96906
96906
30150
96906
17357
DESCRIPTION
1234567
TESTER, Oxygen mask, headset, microphone ..........
and flash goggles, type MQ-1A
. CABLE, Power, electrical ......................................
. CASE AND MARKING AS SY ...............................
. . CASE ASSY ......................................................
. . DECAL, Instruction ............................................
. . DECAL, Instruction ............................................
. . DECAL, Identification ........................................
. PANEL ASSY .......................................................
. SCREW (AP) ........................................................
. . HOSE, Oxygen mask to regulator ......................
. . CIRCUIT BOARD ASSY (see fig. 7-2).................
. . SCREW ( AP ) ..................................................
. . CONNECTOR ...................................................
96906
96906
96906
30150
60540
96906
30150
30150
30150
88044
88044
88044
88044
30150
96906
96906
06540
96906
88044
96906
88044
96906
58873
58873
91802
NONE
NONE
NONE
NONE
90201
07497
96906
96906
96906
71400
71400
92194
92194
92194
81349
81349
82389
06540
96906
96906
9G906
96906
81349
81349
30150
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SCREW (AP) ....................................................
NUT ( A P) ........................................................
WASHER ( A P ) ...............................................
BRACKET, Connector .......................................
STAND OFF, PC board .....................................
SCREW (AP) ....................................................
TUBE ASSY, Supply to gauge ...........................
TUBE ASSY, Gauge to regulator .......................
TUBE ASSY, Regulator to blinker .......................
ELBOW, 90 degree ............................................
TEE ...................................................................
TEE, Inlet fitting .................................................
NUT (AP) ..........................................................
CAP AND CHAIN ASSY ....................................
SCREW (AP) .....................................................
REGULATOR, Oxygen (MIL-R-6371) 1
SPACER ...........................................................
SCREW (AP) .....................................................
GAUGE, Oxygen, low pressure ..........................
SCREW (AP) ....................................................
INDICATOR, Flow .............................................
SCREW (AP) ....................................................
BULB, Microphone ............................................
LAMP, Microphone ............................................
LAMP, Power on ...............................................
GROMMET, 1/2 in. dia ......................................
GROMMET, 3/8 in. dia ......................................
GROMMET, 3/8 in. dia ......................................
GROMMET, 5/16 in. dia .....................................
BUSHING, Strain relief ......................................
TRANSFORMER ...............................................
SCREW (AP) ....................................................
WASHER (AP) ..................................................
NUT (AP) ..........................................................
FUSEHOLDER ..................................................
FUSE, Cartridge, lamp, 250v .............................
CABLE, 2 Cond (on J5) .....................................
CABLE, 4 Cond (on J4) .....................................
CABLE, 4 Cond, shld pr (on J3) .........................
CONNECTOR, Plug ..........................................
CONNECTOR, Plug ..........................................
CONNECTOR, Plug ..........................................
STANDOFF........................................................
SCREW (AP) ....................................................
SCREW, Grounding ..........................................
WASHER(AP) ....................................................
NUT (AP) ..........................................................
RECEPTACLE (MIL-J-641).................................
SWITCH ...........................................................
PANEL, Case ....................................................
Change 1 7-3
QTY
PER
ASSY
1
1
1
1
1
1
1
1
6
1
1
1
1
2
2
2
1
1
1
1
1
1
1
1
1
1
1
1
3
6
1
4
1
4
1
1
1
2
1
1
1
1
1
2
2
2
1
1
8 FT
8 FT
8 FT
1
1
1
1
1
1
1
1
1
1
1
USABLE
ON
CODE
SMR
TO 33D2-10-10-41
TM 55-6695-217-13
Figure 7-2. Circuit Board Assembly (Sheet 1 of 2)
Change 1 7-4
TO 33D2-10-10-41
TM 55-6695-217-13
Figure 7-2. Circuit Board Assembly (Sheet 2 of 2)
Change 3 7-5
TO 33D2-10-10-41
TM 55-6695-217-13
FIGURE
AND
INDEX NO.
7-2
-1
-2
-3
-4
-5
-6
-7
-8
-9
-10
-11
-12
-13
-14
-15
-16
-17
-18
-19
-20
-21
-22
-23
-24
-25
-26
-27
-28
-29
-30
-31
-32
-33
-34
-35
-36
-37
-38
-39
-40
-41
-42
43
PART NO.
184
LM317T
MS35206-230
MS35B49-262
MS35338-41
6073B
120-2
UA7824UC
MS35206-230
MS35649-262
MS35338-41
6073B
120-2
RC07GF241J
lN914
C420C104M
RC32GF821J
C3-403J
TVA1308
TVA1312
RC07GF7R5J
MDA942A-1
00-7023-017000-001
MS35206-218
MS35649-242
MS35338-40
RC07GF301J
TVA1300
RC07GF821J
DD750
RC07GF225J
RC07GF1OZJ
CA3094AT
RC07GF562J
RC07GF474J
RC07GF152J
DD050
RC07GF155J
NO NUMBER
150D685X9035B2
RC07GF152J
RC07GF563J
LM377N
DD050
RC07GF121J
184-1
214AG39D
2N6211
MS35206-230
MS35649-262
MS35338-41
1N5656A
1N3032B
1N4150
70F824A1
830A68
830310
C420C104M
184-2
4230
GC11-570
GC11-182
RC07GF512J
FSCM
DESCRIPTION
1234567
12040
96906
96906
9690f
13103
05820
07263
96906 .
96906
96906
13103
05820
81349
81349
71590
81349
81349
80183
80183
81349
04713
17357
CIRCUIT BOARD ASSY (see fig. 7-1 for NHA) 1
. IC Voltage reg........................................................
. SCVEW (AP) ........................................................
. NUT (AP)...............................................................
. WASHER (AP).......................................................
. HEATSINK.............................................................
. COMPOUND, Heat dissipation ..............................
. IC, Voltage Regulator ............................................
. SCREW (AP ) .......................................................
. NUT (AP) ..............................................................
. WASHER (AP) 1....................................................
. HEATSINK ............................................................
. COMPOUND, Heat dissipation ..............................
. RESISTOR. ...........................................................
. DIODE...................................................................
. CAPACITOR .........................................................
. RESISTOR. ...........................................................
. RESISTOR. ...........................................................
. CAPACITOR .........................................................
. CAPACITOR .........................................................
. RESISTOR ...........................................................
. DIODE, Bridge rectifier .........................................
. CONNECTOR........................................................
81349
96906
96906
81349
80183
81349
71590
81349
81349
86684
81349
81349
81349
71590
81349
NONE
71590
81349
81349
12040
71590
81349
30150
13103
81349
96906
96906
96906
81349
81349
81349
NONE
86684
86684
71590
30150
83330
72653
72653
81349
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SCREW ................................................................
NUT(AP)................................................................
WASHER(AP)........................................................
RESISTOR ............................................................
CAPACITOR..........................................................
RESISTOR ...........................................................
CAPACITOR..........................................................
RESISTOR ............................................................
RESISTOR ............................................................
IC, Amplifier, operational ......................................
RESISTOR ............................................................
RESISTOR ............................................................
RESISTOR ............................................................
CAPACITOR..........................................................
RESISTOR ............................................................
JUMPER, Bus wire, 20 AWG AR ...........................
CAPACITOR..........................................................
RESISTOR ............................................................
RESISTOR ............................................................
IC, Amplifier, operational ......................................
CAPACITOR..........................................................
RESISTOR ............................................................
BOARD, Circuit......................................................
SOCKET, Ic ..........................................................
TRANSISTOR........................................................
SCREW (AP).........................................................
NUT(AP)................................................................
WASHER (AP).......................................................
DIODE ..................................................................
DIODE...................................................................
DIODE...................................................................
COIL, RF (J.W. Miller Co.)....................................
RESISTOR, Film, 6.8 ohm 1/2 W, 2%. ..................
RESISTOR, Film, 1iK, 1/2 W2%. ...........................
CAPACITOR..........................................................
BOARD, Circuit......................................................
SPACER (AP)........................................................
SCREW (AP).6
WASHER.(AP).......................................................
RESISTOR ............................................................
Change 3 7-6
QTY
PER
ASSY
1
1
1
1
1
AR
1
1
1
1
1
AR
1
1
5
1
1
1
1
2
1
1
2
2
2
1
1
1
1
1
1
1
1
1
1
1
1
AR
1
1
1
1
1
1
1
1
1
2
2
2
1
1
2
1
1
1
1
1
3
6
1
USABLE
ON
CODE
SMR
TO 33D2-10-10-41
TM 55-6695-217-13
By Order of the Secretary of the Army:
Official:
JOHN A. WICKHAM, JR.
General, United States Army
Chief of Staff
R. L. DILWORTH
Brigadier General, United States Army
The Adjutant General
DISTRIBUTION:
To be distributed in accordance with DA Form 12-31, AVUM and AVIM Requirements for All Fixed and Rotary Wing
Aircraft
U.S. GOVERNMENT PRINTING OFFICE: 1992 - 311-831(61482)
The Metric System and Equivalents
Linear Measure
Liquid Measure
1 centiliter = 10 milliters = .34 fl. ounce
1 deciliter = 10 centiliters = 3.38 fl. ounces
1 liter = 10 deciliters = 33.81 fl. ounces
1 dekaliter = 10 liters = 2.64 gallons
1 hectoliter = 10 dekaliters = 26.42 gallons
1 kiloliter = 10 hectoliters = 264.18 gallons
1 centimeter = 10 millimeters = .39 inch
1 decimeter = 10 centimeters = 3.94 inches
1 meter = 10 decimeters = 39.37 inches
1 dekameter = 10 meters = 32.8 feet
1 hectometer = 10 dekameters = 328.08 feet
1 kilometer = 10 hectometers = 3,280.8 feet
Square Measure
Weights
1 sq. centimeter = 100 sq. millimeters = .155 sq. inch
1 sq. decimeter = 100 sq. centimeters = 15.5 sq. inches
1 sq. meter (centare) = 100 sq. decimeters = 10.76 sq. feet
1 sq. dekameter (are) = 100 sq. meters = 1,076.4 sq. feet
1 sq. hectometer (hectare) = 100 sq. dekameters = 2.47
1 centigram = 10 milligrams = .15 grain
1 decigram = 10 centigrams = 1.54 grains
1 gram = 10 decigram = .035 ounce
1 decagram = 10 grams = .35 ounce
acres
1 hectogram = 10 decagrams = 3.52 ounces
1 kilogram = 10 hectograms = 2.2 pounds
1 quintal = 100 kilograms = 220.46 pounds
1 metric ton = 10 quintals = 1.1 short tons
1 sq. kilometer = 100 sq. hectometers = .386 sq. mile
Cubic Measure
1 cu. centimeter = 1000 cu. millimeters = .06 cu. inch
1 cu. decimeter = 1000 cu. centimeters = 61.02 cu.
inches
1 cu. meter = 1000 cu. decimeters = 35.31 cu. feet
Approximate Conversion Factors
To change
inches
feet
yards
miles
square inches
square feet
square yards
square miles
acres
cubic feet
cubic yards
fluid ounces
pints
quarts
gallons
ounces
pounds
short tons
pound-feet
pound-inches
To
Multiply by
centimeters
2.540
meters
.305
meters
.914
kilometers
1.609
square centimeters 6.451
square meters
.093
square meters
.836
square kilometers
2.590
square hectometers .405
cubic meters
.028
cubic meters
.765
milliliters
29,573
liters
.473
liters
.946
liters
3.785
grams
28.349
kilograms
.454
metric tons
.907
Newton-meters
1.356
Newton-meters
.11296
To change
ounce-inches
centimeters
meters
meters
kilometers
square centimeters
square meters
square meters
square kilometers
square hectometers
cubic meters
cubic meters
milliliters
liters
liters
liters
grams
kilograms
metric tons
To
Newton-meters
inches
feet
yards
miles
square inches
square feet
square yards
square miles
acres
cubic feet
cubic yards
fluid ounces
pints
quarts
gallons
ounces
pounds
short tons
Temperature (Exact)
°F
Fahrenheit
temperature
5/9 (after
subtracting 32)
Celsius
°C
temperature
Multiply by
.007062
.394
3.280
1.094
.621
.155
10.764
1.196
.386
2.471
35.315
1.308
.034
2.113
1.057
.264
.035
2.205
1.102
PIN: 060199-000
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