TM 5-6115-584-12
NAVFAC P-8-622-12
TO-35C2-3-456-1
TM-05682C-12
Table 4.2. Troubleshooting
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
1. ENGINE FAILS TO CRANK WHEN MASTER SWITCH IS HELD IN THE START POSITION.
Step 1. Test batteries (paragraph 4-25).
Replace defective batteries. Check battery alternator fuse and replace if necessary.
Step 2. Inspect battery and starter cables for corrosion and loose connections.
Clean or tighten cables.
Step 3. Test “START” position of master switch (paragraph 4-38).
Replace defective master switch.
Step 4. Inspect and test for open starter solenoid switch or for short to ground (paragraph 4-26).
Replace defective solenoid.
Step 5. Inspect and test starter lockout switch (paragraph 4-28).
Adjust switch points if they are not closing or replace defective switch.
2. STARTER TURNS BUT WILL NOT ENGAGE ENGINE.
Step 1. Inspect starter drive assembly (paragraph 4-26).
Clean drive assembly if it is sticking.
Step 2. Inspect starter drive gear assembly for worn or broken teeth (paragraph 4-26).
Replace starter.
9. ENGINE CRANKS NORMALLY BUT FAILS TO START.
Step 1. Test stop solenoid for correct operation (Paragraph 4-23).
Replace bad solenoid.
Step 2. Inspect fuel pumps for clogged strainers (paragraph 4-21).
Replace strainer element.
Step 3. Inspect for clogged fuel strainer element or fuel filter elements (paragraph 4-20).
Clean strainer element; replace fuel filter elements.
Step 4. Check for clogged fuel lines to injector pump.
Clean or replace clogged fuel lines.
Step 5. Test for worn or damaged fuel pumps (paragraph 4-21).
Replace bad pumps.
Step 6. Inspect and test intake manifold heaters (paragraph 4-43).
Replace bad heaters.
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