TM-9-2320-361-20

2-1/2-TON, 6x6, M44A2 SERIES TRUCKS (MULTIFUEL)

TECHNICAL MANUAL; UNIT MAINTENANCE

OCTOBER 1991
TM-9-2320-361-20

  TM-9-2320-361-20 - Page 120 of 1207

TM 9-2320-361-20
Table 2-2. Mechanical Troubleshooting (Contd).
MALFUNCTION
TEST OR INSPECTION
CORRECTlVE ACTION
●
●
●
FUEL SYSTEM
WARNING
Diesel fuel is flammable. Do not perform troubleshooting checks near
open flame, sparks, or electricity. Injury to personnel may result.
Eye protection is required when performing fuel system
troubleshooting checks. Failure to wear eye protection may result
in injury to personnel.
Ignition switch must remain OFF during fuel system
troubleshooting checks. Failure to verify that ingition system is
turned off may result in injury to personnel.
21. NO FUEL AT FUEL INJECTORS
Step 1. Check final fuel filter for restrictions (para. 3-29).
a. If final fuel filters are restricted or defective, replace (para. 3-29).
b. If final fuel filters are not restricted and problem persists, notify your supervisor.
END OF TESTING!
PERSONNEL HOT WATER HEATER
22. PERSONNEL HOT WATER HEATER DOES NOT HEAT CAB
Step 1. Engine does not reach normal operating temperature.
Refer to malfunction 19.
Step 2. Check personnel hot water heater for clogged, broken, or leaking inlet/outlet hoses.
If personnel hot water heater hoses are leaking or collapsed, replace (para. 3-44).
Step 3. Check for proper personnel hot water heater control cable operation of heater, defroster,
and heater diverter vents and doors.
If control cables are bent or broken, replace (para. 11-41).
Step 4. Check heater blower motor and fan for proper operation (TM 9-2320-361-10).
If damaged, replace personnel hot water heater (para. 11-42).
END OF TESTING!
TRANSMISSION
23. TRANSMISSION NOISY
Step 1.
Step 2.
Step 3.
Step 4.
Check propeller shafts condition. Remove propeller shafts and inspect (para. 7-2).
If propeller shafts assemblies are worn or defective, repair or replace (para. 7-2).
Check clutch for proper adjustment.
Adjust clutch linkage as necessary (para. 3-10).
Check transmission fluid level (LO 9-2320-209-12-1).
Drain transmission fluid and check for signs of broken gears, metal shavings, and
contamination (LO 9-2320-209-12-1).
If broken gears or metal shavings are found, notify your supervisor.
END OF TESTING!
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