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 135 of 1207

TM 9-2320-361-20
Table 2-2. Mechanical Troubleshooting (Contd).
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
80. WATER TANK COMPARTMENTS CANNOT BE SUCTION FILLED
Step 1. Check delivery pump propeller shafts for broken universal joints or broken shaft.
a. If shaft is broken, replace (para. 12-49, 12-50, 12-51, or 12-52).
b. If universal joints are broken, replace (para. 7-4).
Step 2. Remove suction strainer from suction hose and check for restrictions (para. 12-40).
If suction strainer is restricted, clean or replace (para. 12-40).
Step 3. Check transfer PTO for proper operation.
a. If transfer PTO is inoperative, check transfer PTO linkage for proper operation and
adjustment (para. 6-2 and 6-3).
b. If transfer PTO linkage is operating properly and transfer PTO is inoperative, notify
your supervisor.
Step 4. Check delivery pump strainer for restrictions.
a. If delivery pump strainer is restricted, clean or replace (para. 12-40).
b. If water system is clean and delivery pump driveshaft is operating at correct speed,
replace delivery pump (para. 12-33).
END OF TESTING!
PERSONNEL FUEL BURNING HEATER/POWER PLANT HEATER KIT
81. HEATER WILL NOT OPERATE IN HIGH OR LOW POSITION
Refer to electrical troubleshooting table 2-4, malfunction 41.
82. HEATER WILL NOT OPERATE
WARNIN G
Diesel fuel is flammable. Do not perform fuel system procedures
near open flame. Injury or death to personnel may result.
Compressed air source will not exceed 30 psi (207 kPa). When
cleaning with compressed air, eyeshields must be worn. Failure to
Step 1.
Step 2.
Step 3.
Step 4.
wear eyeshields may result in injury to personnel.
Refer to electrical troubleshooting table 2-4, malfunction 41.
Perform electrical wire continuity tests. If defective, repair wires and connectors (table 2-4,
malfunction 41).
Check fuel shutoff valve and make sure it is in full ON position.
If fuel shutoff valve is damaged (or stuck in OFF or partial ON position), notify your
supervisor.
Check heater fuel filter for contamination (para. 14-5).
If water or contamination is present, clean and flush entire fuel system. Dry with
compressed air.
Check fuel lines for breaks, bends, kinks, or leaking joints.
If broken, kinked, or leaky joints are found, notify your supervisor.
2-50


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