TM-9-2320-361-34
2-1/2-TON, 6x6, M44A2 SERIES TRUCKS (MULTIFUEL)
TECHNICAL MANUAL; DIRECT SUPPORT AND GENERAL SUPPORT MAINTENANCE
MAY 1992
TM-9-2320-361-34 - Page 87 of 764
TM 9-2320-361-34
I
3-12. OIL PUMP MAINTENANCE
THIS TASK COVERS:
a.
Removal
c. Installation
b.
Inspection
INITIAL SETUP
APPLICABLE MODELS
All
TOOLS
General mechanic’s tool kit
(Appendix B, Item 1)
Mechanical puller kit (Appendix B, Item 22)
6-in. Extension, 3/8-in. dr.
(Appendix B, Item 54)
Universal joint, 3/8-in. (Appendix B, Item 18)
Adapter, 1/2-in. male, 3/8-in. female
(Appendix B, Item 18)
SPECIAL TOOLS
5/8-in. crowfoot adapter (Appendix B, Item 56)
MATERIALS/PARTS
Three lockscrews (Appendix F, Item 120)
Gasket (Appendix F, Item 39)
Gasket (Appendix F, Item 40)
Gasket (Appendix F, Item 41)
Preformed packing (Appendix F, Item 179)
Thirteen lockwashers (Appendix F, Item 121)
Cotter pin (Appendix F, Item 4)
Safety wire (Appendix C, Item 31)
Lubricating oil, OE/HDO 30 (Appendix C, Item 13)
REFERENCES (TM)
TM 9-2320-361-34P
EQUIPMENT CONDITION
Oil pan removed para. 3-11).
NOTE
Have drainage container ready to catch excess oil.
1. Remove safety wire (8) from two screws (9). Discard safety wire (8).
2. Remove two screws (9), outlet tube (7), and gasket (6) from engine block (2) and flange (12). Discard
gasket (6).
3. Remove two screws (10), lockwashers (11), flange (12), and packing (13) from oil pump (14). Discard
lockwashers (11) and packing (13).
4. Remove nut (18), lockwasher (17), and screw (22) from pickup tube clamp (21) and brace (16).
Discard lockwasher (17).
5. Remove two screws (24), lockwashers (25), pickup tube (23), and gasket (26) from oil pump (14).
Discard lockwashers (25) and gasket (26).
6. Remove two screws (30) and lockwashers (29) from scavenger tube (28) and engine block (2).
Discard lockwashers (29).
7. Remove two screws (34), lockwashers (35), scavenger tube (28), and gasket (27) from oil pump (14).
Discard lockwashers (35) and gasket (27).
8. Remove two screws (20), lockwashers (19), and brace (16) from oil pump (14). Discard lock-
washers (19).
9. Remove three lockscrews (15) and oil pump (14) from two bearing caps (l). Discard lockscrews (15).
10. Remove cotter pin (5), nut (4), and gear (3) from pump (14). Discard cotter pin (5).
11. Remove gear (3) from pump (14) with mechanical puller.
12. Remove two nuts (31), lockwashers (32), and screws (33) from scavenger tube (28). Discard
lockwashers (32).
3-36
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