TM-9-2320-272-24-3
TRUCK, 5-TON, 6X6, M939, M939A1, AND M939A2 SERIES TRUCKS (DIESEL)
TECHNICAL MANUAL; UNIT, DIRECT SUPPORT, AND GENERAL SUPPORT MAINTENANCE MANUAL; VOLUME 3 OF 4
JUNE 1998
TM-9-2320-272-24-3 - Page 744 of 799
TM 9-2320-272-24-3
4-217. PERSONNEL FUEL BURNING HEATER AND MOUNTING BRACKET (M939A2)
REPLACEMENT
THIS TASK COVERS:
a. Removal
b. Installation
INITIAL SETUP:
APPLICABLE MODELS
M939A2
TOOLS
General mechanic’s tool kit (Appendix E, Item 1)
EQUIPMENT CONDITION
MATERIALS/PARTS
Lockwasher (Appendix D, Item 353)
Four locknuts (Appendix D, Item 299)
Cotter pin (Appendix D, Item 71)
Antiseize tape (Appendix C, Item 72)
REFERENCES (TM)
TM 9-2320-272-10
TM 9-2320-272-24P
l
Parking brake set (TM 9-2320-272-10).
l
Hood raised and secured (TM 9-2320-272-10).
l
Fuel shutoff valve closed (TM 9-2320-272-10).
l
Battery ground cables disconnected (para. 3-126).
PERSONNEL REQUIRED
Two
GENERAL SAFETY INSTRUCTIONS
Diesel fuel is flammable. Do not perform this
procedure near open flames.
a. Removal
WARNING
Diesel fuel is flammable. Do not perform this procedure near open
flames. Injury to personnel may result.
1.
Disconnect heater harness (13) from heater (1).
2.
Disconnect hose (4) from adapter (3).
3.
Remove adapter (3) from heater (1).
4.
Remove cotter pin (10) from elbow (11) and exhaust port (14). Discard cotter pin (10).
6.
Bemove two clamps (2) and heater (1) from brackets (9) and (21).
6.
Remove two locknuts (8), washers (7), screws (5), washers (6), and bracket (9) from two mounting
brackets (12). Discard locknuts (8).
7.
Remove two locknuts (19), washers (20), screws (15), bracket (21), two washers (18), lockwasher (17),
and ground wire (16) from two mounting brackets (12). Discard lockwasher (17) and locknuts (19).
b. Installation
NOTE
Clean all male pipe and hose threads and wrap with antiseize tape
before installation.
1.
Install bracket (21) on two mounting brackets (12) with two washers (18), new lockwasher (17),
ground wire (16), two screws (15), washers (20), and new locknuts (19).
2.
Install bracket (9) on two mounting brackets (12) with two washers (6), screws (5), washers (7), and
new locknuts (8).
3.
Install heater (1) on brackets (9) and (21) with two clamps (2).
4.
Install new cotter pin (10) on elbow (11) and exhaust port (14).
5.
Install adapter (3) on heater (1).
6.
Connect hose (4) to adapter (3).
7.
Connect heater harness (13) to heater (1).
4-1008
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