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

  TM-9-2320-361-34 - Page 42 of 764

TM 9-2320-361-34
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
Table 2-1. Mechanical Troubleshooting (Contd).
57.
58.
59.
60.
WATER WILL NOT GRAVITY DRAIN FROM SELECTED COMPARTMENTS
Complete troubleshooting malfunction 56, step 2.
END OF TESTING!
WATER TANK COMPARTMENTS CANNOT BE SUCTION FILLED
Complete troubleshooting malfunction 56, steps 1 and 3.
END OF TESTING!
EARTH BORING AND POLESElllNG
EARTH BORING MACHINE DRIVE INOPERATIVE
Step
1.
Step
2.
Step
3.
WARNING
(M764)
Eye protection is required when inspecting internal clutch case
operation on vehicle. Failure to do this may result in fluid
contacting eyes and injury to personnel.
Check clutch case internal drive hubs. Remove top plug from clutch case housing. Operate
earth boring machine with drive engaged and feed in neutral (TM9-2320-361-10). Looking
through plug hole, observe drive hubs for rotation.
a. If rotation of drive hubs is evident, check and replace idler gears (para. 15-43).
b. If no rotation of drive hubs is evident, repair or replace clutch case assembly (para. 15-44).
Check intermediate case drive gears. Operate earth boring machine power leveler
(TM9-2320-361-10).
If power leveler will not operate, replace or repair intermediate gear assembly
(para. 15-42).
Check boring case. Remove inspection cover of boring case. Manually rotate rack bar
clockwise and observe boring case gears operation.
If rack bar will not turn, replace or repair boring case (para. 15-38).
END OF TESTING!
EARTH BORING MACHINE FEED INOPERATIVE
WARNING
Eye protection is required when inspecting clutch case operation
on vehicle. Failure to do this may result in injury to personnel.
NOTE
Earth boring machine auger feed cannot be moved up or down
manually without vehicle power to aid operation.
Step 1. Check clutch case internal feed hubs. Remove top breather and adapter from clutch case
housing. Operate earth boring machine with feed engaged and drive in neutral
(TM9-2320-361-10).
a. If rotation of feed hubs is evident, replace or repair clutch case assembly (para. 15-44).
b. If no rotation of feed hubs is evident, check and replace defective idler gears (para. 15-43).
2-27


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