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 746 of 799
TM 9-2320-272-24-3
4-218. PERSONNEL FUEL BURNING HEATER FUEL PUMP (M939/A1) REPLACEMENT
THIS TASK COVERS:
a. Removal
b. Installation
REFERENCES (TM)
TM 9-2320-272-10
TM 9-2320-272-24P
INITIAL SETUP:
APPLICABLE MODELS
M939/A1
TOOLS
General mechanic’s tool kit (Appendix E, Item 1)
EQUIPMENT CONNECTION
l
Parking brake set (TM 9-2320-272-10).
MATERIALS/PARTS
Two locknuts (Appendix D, Item 313)
Antiseize tape (Appendix C, Item 72)
Cap and plug set (Appendix C, Item 14)
PERSONNEL REQUIRED
Two
l
Battery ground cables disconnected (para. 3-126).
GENERAL SAFETY INSTRUCTIONS
Diesel fuel is flammable. Do not perform this
procedure near open flames.
2.
3.
4.
5.
6.
7.
8.
9.
Disconnect hose (4) from adapter (3).
Disconnect hose (5) from adapter (6).
Remove locknut (10) and screw (12) from left-hand splash panel (11) and fuel pump mounting
bracket (9). Discard locknut (10).
Remove locknut (10), screw (12), fuel pump (8), washer (13), wire clip (15), and washer (14) from
1eft-hand splash panel (11). Discard locknut (10).
Remove adapter (6) from elbow (7).
Remove adapter (3) from fuel shutoff valve (2).
Remove fuel shutoff valve (2) from elbow (1).
Remove elbows (1) and (7) from fuel pump (8).
1.
Diesel fuel is flammable. Do not perform this procedure near open
flames. Injury to personnel may result.
Disconnect wire (17) from wire (16) on electrical wire clip (15).
CAUTION
Cover or plug all openings after disconnecting lines and hoses to
prevent contamination. Failure to do this may result in fuel pump
damage.
WARNING
b. Installation
NOTE
Clean all male pipe threads and wrap with antiseize tape before
installation.
1.
Install elbows (7) and (1) on fuel pump (8).
2.
Install fuel shutoff valve (2) on elbow (1).
3.
Install adapter (3) on fuel shutoff valve (2).
4.
Install adapter (6) on elbow (7).
4-1010
a. Removal
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