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 359 of 764
TM 9-2320-361-34
15-12. DELlVERY PUMP REPAIR
THIS TASK COVERS:
a.
Disassembly
c. Inspection
b.
Cleaning
d. Assembly
INITIAL
SETUP
APPLICABLE MODELS
REFERENCES
(TM)
M49A2C, M50A2, and M50A3
LO 9-2320-209-12-1
TOOLS
TM 9-214
General mechanic’s tool kit
TM 9-2320-361-20
(Appendix B, Item 1)
TM 9-2320-361-34P
Snapring pliers (Appendix B, Item 40)
EQUIPMENT
CONDITION
MATERIALS/PARTS
●
Delivery pump drain cock removed, if installed
Two O-ring seals (Appendix F, Item 177)
(TM 9-2320-361-20).
Two snaprings (Appendix F, Item 263)
●
Delivery pump removed (TM 9-2320-361-20).
Five seals (Appendix F, Item 233)
●
Strainer element removed (TM 9-2320-361-20).
Two gaskets (Appendix F, Item 54)
SPECIAL ENVIRONMENTAL CONDITIONS
Gasket (Appendix F, Item 43)
Gasket (Appendix F, Item 44)
Work area must be clean and free from blowing dirt
and dust.
Gasket (Appendix F, Item 53)
Thirty-two lockwashers (Appendix F, Item 146)
GAA grease (Appendix C, Item 8)
Rag (Appendix C, Item 16)
I
a. Disassembly
1.
2.
3.
4.
5.
6.
7.
8.
9.
10.
11.
15-48
Remove four screws (3), lockwashers (2), strainer body (1), and gasket (46) from pump body (40).
Discard lockwashers (2) and gasket (46).
Remove valve cap (7) and gasket (6) from setscrew (5). Discard gasket (6).
Place a locator mark on setscrew (5) threads where threads meet cover (4). Remove setscrew (5).
Remove four screws (8), lockwashers (9), cover (4), and gasket (10) from pump body (40). Discard
lockwashers (9) and gasket (10).
Remove spring guide (11), spring (12), and bypass valve (13) from pump body (40).
Remove grease fittings (23) and (32) and fittings (25) and (31) from covers (24) and (30).
Remove four screws (26), Lockwashers (27), cover (24), and gasket (22) from pump head (16). Discard
lockwashers (27) and gasket (22).
NOTE
Liner pins may stay with pump heads or liner during removal of pump
heads.
Remove eight screws (15), lockwashers (14), pump head (16), and O-ring seal (41) from pump
body (40). Discard lockwashers (14) and O-ring seal (41).
Remove four screws (33), lockwashers (34), cover (30), and gasket (28) from pump head (43). Discard
lockwashers (34) and gasket (28).
Remove eight screws (44), lockwashers (45), pump head (43), and O-ring seal (42) from pump
body (40). Discard lockwashers (45) and O-ring seal (42).
Remove seal (29) from cover (30). Discard seal (29).
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