ARMY TM 9-6115-642-24
AIR FORCE TO 35C2-3-455-12
MARINE CORPS TM 09247A/09248A-24/2
TABLE 2-6. UNIT TROUBLESHOOTING - Continued
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
2. ENGINE CRANKS BUT FAILS TO START.
Step 1. Test for low battery charge, paragraph 2-12.1.
a. If batteries are fully charged, do Step 2.
b. If not fully charged, replace batteries, paragraph 2-12.
Step 2. Check for clogged or defective fuel filter/water separator.
a. If fuel filter/water separator is not dogged or defective, do Step 3.
b. If clogged or defective, replace fuel filter/water separator, paragraph 2-87.
Step 3. Check for blocked fuel line(s) and components.
a. If fuel lines are not blocked, do Step 4.
b. If blocked, unblock or replace fuel line(s), and/or components paragraph 2-80 and 2-84
Step 4. Test for defective MASTER SWITCH (S1), paragraph 2-47.2.
a. If MASTER SWITCH is not defective, do Step 5.
b. If defective, replace MASTER SWITCH, paragraph 2-47.
Step 5. Test for defective fuel solenoid, paragraph 2-95.1.
a. If fuel solenoid is not defective, do Step 6.
b. If defective, replace fuel solenoid, paragraph 2-95.
Step 6. Test for defective fuel transfer pump, paragraph 2-85.2.
a. If fuel transfer pump is not defective, do Step 7.
b. If defective, replace fuel transfer pump, paragraph 2-85.
Step 7. Check for contaminated or incorrect grade of fuel.
a. If fuel is not contaminated and correct grade, do Step 8.
b. If contaminated or incorrect grade, drain fuel tank. Replace fuel filter/water separator element,
paragraph 2-87. Service fuel tank with clean fuel of proper grade (TABLE 2-2). Prime engine
fuel system in accordance with TM 9-2815-253-24.
Step 8. Check for air in fuel lines.
a. If air in fuel lines, bleed fuel lines in accordance with TM 9-2815-253-24.
b. If no air in fuel lines and trouble persists, notify next higher level of maintenance.
Change 1
2-15
