ARMY TM 9-6115-639-13
AIR FORCE TO 35C2-3-386-51
MARINE CORPS TM 10155A-13/1
Table 4-4. Unit Level Troubleshooting (continued)
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
4.
ENGINE STARTS AND STOPS
a. Check fuel lines for obstructions, kinks, or clogging. Inspect for leaks.
Remove and replace damaged or defective fuel lines.
b. Possible air in fuel system. Check for loose or damaged connections.
Tighten connections. Remove and replace damaged components as required.
c. Check for clogged fuel filter / water separator element.
Remove and replace filter / separator element (Para. 4-49).
d. Adjust engine valve clearance in accordance with TM 9-2815-257-24.
e. Refer trouble to direct support level maintenance.
5.
ENGINE WILL NOT START IN COLD WEATHER
a. Check for continuity of air heaters H1 and H2.
Remove and replace air heater in accordance with TM 9-2815-257-24.
b. Check engine preheat relay K13 as follows:
(1)
Connect positive (+) probe of multimeter to relay K13-A2.
(2)
Connect negative (-) probe to terminal board TB3, test point TP31.
(3)
Place PREHEAT switch in ON position.
(4)
20 to 32 VDC present?
If not present, remove and replace relay (Para. 4-24).
c. Check PREHEAT switch S18 as follows:
(1)
Connect positive (+) probe of multimeter to switch S18-1.
(2)
Connect negative (-) probe to terminal board TB3, test point TP31.
(3)
Place PREHEAT switch in ON position.
(4)
20 to 32 VDC present?
If not present, remove and replace PREHEAT switch (Para. 4-19).
4-17
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