TM 5-4310-451-14
Table 4-2. Mechanical Troubleshooting.
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
ENGINE
1.
ENGINE TURNS OVER BUT WILL NOT START.
Check to see if fuel filter is clogged.
Replace fuel filter element (see paragraph 4-34 or 4-35).
2.
TURNS OFF PREMATURELY.
Step 1
Check for any broken or loose electrical connections.
Test and tighten loose electrical connections.
Step 2
Check for faulty engine oil pressure switch, engine coolant temperature switch, or compressor dis-
charge temperature switch.
Locate faulty switch and replace (see paragraph 4-76, 4-79, or 4-80).
3.
WILL NOT RUN AT CORRECT SPEED.
Step 1
Check to see if fuel filter is clogged.
Replace fuel filter element (see paragraph 4-34 or 4-35).
WARNING
If NBC exposure is suspected, all engine air cleaner air filter media should be handled by
personnel wearing protective equipment. Consult your NBC Officer or NBC NCO for appropriate
handling or disposal procedures.
Step 2
Check to see if engine air cleaner filter is clogged.
Clean or replace engine air filter (see paragraph 4-31).
4.
ENGINE OVERHEATS.
Check for dirty radiator core.
Clean radiator core.
BRAKES
5.
HANDBRAKE WILL NOT HOLD AIR COMPRESSOR UNIT.
Check adjustment of handbrake cable and linkage.
Adjust handbrake cable and linkage (see paragraph 4-65).
4-9
