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 457 of 764
TM 9-2320-361-34
15-39. HORIZONTAL LEVELING WORM GEAR MAINTENANCE
THIS TASK COVERS:
a. Removal
d. Assembly
b. Disassembly
e. Installation
c. Inspection
INITIAL SETUP
APPLICABLE MODELS
M764
TOOLS
General mechanic’s tool kit
(Appendix B, Item 1)
Outside micrometer (Appendix B, Item 17)
Inside micrometer (Appendix B, Item 16)
MATERIALS/PARTS
Four cotter pins (Appendix F, Item 10)
Shim set (Appendix F, Item
249)
Shim set (Appendix F, Item 250)
Shim set (Appendix F, Item 251)
Four lockwashers (Appendix F, Item 138)
Two lockwashers (Apendix F, Item 127)
Woodruff
key (Appendix F, Item 297)
Woodruff
key (Appendix F, Item 274)
Safety wire (Appendix C, Item 31)
a. Removal
1.
2.
3.
4.
5.
6.
7.
8.
9.
PERSONNEL REQUIRED
Two
REFERENCES [TM]
LO 9-2320-209-12-1
TM 9-237
TM 9-2320-361-10
TM 9-2320-361-20
TM 9-2320-361-34P
EQUIPMENT CONDITION
●
Parking brake set (TM 9-2320-361-10).
●
Horizontal leveling worm
drivechain removed
(TM 9-2320-361-20).
GENERAL SAFETY INSTRUCTIONS
Before removing horizontal leveling worm gear
housing, support intermediate case to prevent from
turning.
WARNING
Before removing horizontal leveling worm gear housing, place
supports
under intermediate case to prevent case from turning. If
intermediate case turns, injury to personnel and/or damage to
equipment may result.
NOTE
Assistant will help with entire procedure.
Place handle (5) in center slot of bracket (6). Remove cotter pin (1), nut (2), washer (3), handle (5),
and spring (4) from rod (7). Discard cotter pin (1).
Remove two cotter pins (8), clevis pins (10), and retaining links (9) from rod (7) and power leveler
housing
(12). Discard cotter pins (8).
Remove cotter pin (14), clevis pin (11), and rod (7) from shifter shaft (13). Discard cotter pin (14).
Loosen screw (20) and remove sprocket (15) from bracket (18).
Remove two screws (31) and lockwashers (30) from power leveler housing (12). Discard lock-
washers (30).
Remove two screws (16), Iockwashers (17), bracket (18), and shims (19) from worm gear housing (21).
Record thickness of shims (19). Discard shims (19) and lockwashers (17).
Remove vent plug (28) from intermediate case (29).
Remove safety wire (27), two screws (26), bracket (6), and shims (25) from worm gear housing (21).
Record thickness of shims (25). Discard shims (25) and safety wire (27).
Remove two safety wires (24), four nuts (22), worm gear housing (21), and shims (23) from
intermediate case (29). Record thickness of shims (23). Discard shims (23) and safety wire (24).
15-146
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