TM-9-2320-260-34-2
TRUCK, 5-TON, 6X6, M809 SERIES (DIESEL)
TECHNICAL MANUAL; DIRECT SUPPORT AND GENERAL SUPPORT MAINTENANCE; VOLUME 2 OF 2
JULY 1994
TM-9-2320-260-34-2 - Page 113 of 863
TM 9-2320-260-34-2
15-17. HOIST PUMP MAINTENANCE
THIS TASK COVERS:
a. Removal
d. Assembly
b. Disassembly
e.
Installation
c. Cleaning and Inspection
INITIAL SETUP
APPLICABLE MODELS
M817
TOOLS
General mechanic’s tool kit
(Appendix B, Item 1)
Arbor press (Appendix B, Item 7)
Mechanical puller kit (Appendix B, Item 14)
MATERIALS/PARTS
Gasket (Appendix D, Item 62)
Six lockwashers (Appendix D, Item 223)
Oil seal (Appendix D, Item 480)
Woodruff key (Appendix D, Item 551)
Woodruff key (Appendix D, Item 552)
REFERENCES (TM)
LO 9-2320-260-12
TM 9-214
TM 9-2320-260-10
TM 9-2320-260-20
TM 9-2320-260-34 P-2
EQUIPMENT CONDITION
• Power takeoff-to-hydraulic pump propeller shaft
removed (TM 9-2320-260-20).
• Hydraulic reservoir drained (LO 9-2320-260-12).
a. Removal
Remove six screws (1), lockwashers (2), pump (5), and gasket (4) from control valve adapter (3). Discard
gasket (4) and lockwashers (2).
b. Disassembly
NOTE
Tag front and rear wear plates for installation.
1. Remove woodruff key (20) from shaft (15). Discard woodruff key (20).
2.
Remove eight screws (21), washers (20), front cover (19), and front wear plate (16) from pump
body (11) and rear cover (6).
3. Using puller, remove two bearings (17) and oil seal (18) from front cover (19). Discard oil seal (18).
CAUTION
Care must be taken when removing shafts and gears to prevent
damage to gear teeth.
4.
Remove shafts (15) and (23) with gears (13) from pump body (11) and rear cover (6).
5. Using arbor press, remove gears (13) and woodruff key (14) from shafts (15) and (23). Discard
woodruff key (14).
6. Remove pump body (11) and rear wear plate (9) from rear cover (6).
7. Using puller, remove two bearings (8) and plug (7) from rear cover (6).
NOTE
Perform step 8 if dowel pins require replacement.
8. Using puller, remove two dowel pins (10) and (12) from pump body (11). Discard dowel pins (10)
and (12).
15-52
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