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TM 10-4320-343-14
Table 4-2. Unit Troubleshooting Table (All Except Model 350 PAFN). (Continued)
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
1. ENGINE WILL NOT CRANK. (continued)
Step 6
Connect multimeter between small terminal of starter solenoid and ground. Set multimeter to read 12
Vdc. Press Push to Start button and oil pressure bypass switch then observe multimeter for +12 Vdc.
a. If +12 Vdc is present, replace starter (paragraph 4.10.13)
b. If +12 Vdc is not present, replace or repair wire from TB1 12 to small terminal on solenoid.
Step 7
Test control panel. (Paragraph 4.13)
a. Repair panel as necessary.
b. Notify direct support maintenance.
2. ENGINE WILL NOT START.
Step 1
Check for correct installation of each fuel shut-off valve handle.
If external source fuel is used, make sure hoses are connected to that source.
WARNING
Do not fill fuel tank on equipment that is operating. Do not smoke or use open
flames while filling tank. Avoid inhalation of fumes from fuel.. Failure to obey this
warning may result in injury or death.
a. Remove and retain plug or elbow from valve.
b. Using a flashlight, observe valve passages while rotating handle.
c. Ensure valve handle pointer positions and valve internal passages agree with decal.
d. Remove and align handle in accordance with information plate.
e. Install plug or elbow retained in step a. on valve.
Step 2
Test fuel shutdown solenoid. (paragraph 4.10.14)
Replace or adjust fuel shutdown solenoid as necessary. (paragraph 4.10.15)
Step 3
Check for blocked strainer in fuel feed pump. (paragraph 4.10.17)
Clean or replace strainer as necessary.
Step 4
Check for air or blockage in fuel lines. (paragraph 4.10.16)
a. Clean or replace fuel lines.
b. Bleed fuel lines.
c. Notify direct support maintenance.
3. ENGINE SPEED DOES NOT ADJUST (Non-regulated pump only).
Step 1
Check for bent, broken or damaged control arm.
Replace throttle control (paragraph 4.11).
4-8 Change 1
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