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 463 of 764
TM 9-2320-361-34
15-40.
VERTICAL 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)
1-1/4-in. socket, 1/2-in. dr.
(Appendix B, Item 19)
MATERIALS/PARTS
Six lockwashers (Appendix F, Item 127)
Shim set (Appendix F, Item 250)
Shim set (Appendix F, Item 251)
Shim set (Appendix F, Item 252)
Woodruff key (Appendix F, Item 273)
Woodruff key (Appendix F, Item 274)
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).
. Vertical leveling worm drivechain removed
(TM 9-2320-361-20).
GENERAL SAFETY INSTRUCTIONS
Place derrick in cradle or support boring case to
prevent case from turning.
a. Removal
WARNING
1.
2.
3.
4.
5.
6.
Before removing vertical leveling worm gear housing, place derrick
in cradle or place supports under boring case to prevent case from
turning. If boring case turns, injury to personnel or damage to
equipment may result.
Remove safety wire (3), loosen setscrew (4), and remove sprocket (5) and woodruff key (13) from
shaft (14). Discard safety wire (3) and woodruff
key
(13).
Loosen nut (7) and remove sprocket (2) from bracket (6).
Remove safety wire (3), two screws (19), washers (18), and shims (17) from intermediate case (20) and
worm gear housing (16). Record thickness of shims (17). Discard safety wire (3) and shims (17).
Remove two screws (24), lockwashers (23), and washers (22) from bracket (6) and power leveler
housing (21). Discard lockwashers (23).
Remove screws (8) and (9), two lockwashers (10), bracket (6), and shims (1) and (11) from power
leveler housing (23) and shaft (14). Discard shims (1) and (11) and lockwashers (10).
Remove safety wire (3), four nuts (15), worm gear housing (16), and shims (12) from intermediate
case (20). Record thickness of shims (12) and discard.
15-152
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