TM 5-6115-584-12
NAVFAC P-8-622-12
TO-35C2-3-456-1
TM-05682C-12
Table 4-2. Troubleshooting (Cont)
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
9. ENGINE SHUTS DOWN.
Step 1. Check oil level (paragraph 4-51).
Add proper grade of oil.
Step 2. Check for restricted air cooling system (paragraph 4-41).
Clean restrictions from system.
Step 3. Check for overload on generator.
Keep generator load within set capability.
Step 4. Check low oil pressure switch (paragraph 4-31).
Replace a bad switch.
Step 5. Check thermo over heat switch (paragraph 4-17c).
Replace a bad switch.
10. ENGINE VIBRATES.
Step 1. Engine mounts loose or bad (paragraph 4-52).
Tighten mounting or replace as necessary.
Step 2. Check for loose blower wheel.
Tighten blower wheel.
Step 3. Check valve clearance (paragraph 4-46).
Reset valve clearance.
11. LOW GENERATOR OUTPUT VOLTAGE (NO LOAD).
Step 1. Low engine speed.
Set engine speed to achieve 60 Hz at frequency meter (paragraph 2-4).
Step 2. Check voltage adjust rheostat (R1) setting (paragraph 4-38).
Set rheostat (R1) for proper output voltage.
12. HIGH GENERATOR OUTPUT VOLTAGE (NO LOAD).
Step 1. Check voltage adjust rheostat (R1) setting (paragraph 4-38).
Set rheostat (R1) for proper output voltage.
13. AC CIRCUIT BREAKER (CB1) WILL NOT CLOSE.
Step 1. Check for short circuit load.
Remove short circuit.
4-9
