TM-9-2320-272-24-4
TRUCK, 5-TON, 6X6, M939, M939A1, AND M939A2 SERIES TRUCKS (DIESEL)
TECHNICAL MANUAL; UNIT, DIRECT SUPPORT, AND GENERAL SUPPORT MAINTENANCE MANUAL; VOLUME 4 OF 4
JUNE 1998
TM-9-2320-272-24-4 - Page 99 of 836
TM 9-2320-272-24-4
5-13. PRESSURE GEAR PUMP REMOVAL
THIS TASK COVERS:
Removal
INITIAL SETUP:
APPLICABLE MODELS
MATERIALS/PARTS
M939/A1
Two lockwashers (Appendix D, Item 407)
TOOLS
REFERENCES (TM)
General mechanic’s tool kit (Appendix E, Item 1)
TM 9-2320-272-24P
Soft-faced hammer
Removal
1.
2.
3.
4.
5.
6.
Remove two screws (4), lockwashers (3), washers (2), pulsation damper (1), and seal (5) from gear
pump (8). Discard lockwashers (3).
Remove four screws (10) and lockwashers (9) connecting gear pump (8) to fuel pump housing (6).
Discard lockwashers (9).
Tap gear pump (8) lightly with soft-faced hammer and remove from fuel pump housing (6).
Remove gasket (7) from gear pump (8). Discard gasket (7).
Clean gasket remains from gear pump (8) mating surfaces.
Install seal (5) and pulsation damper (1) on fuel pump housing (6) with two washers (2), new
lockwashers (3), and screws (4).
5-93
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