TM 10-4320-318-14
Table 3-1. Troubleshooting Procedures - (Cont)
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
5. PUMP DISCHARGE LINE SHOWS LOW OR NO PRESSURE- (Cont)
Step 3. Check priming plug for tightness.
Tighten priming plug if required.
Step 4. Check drain valve for leakage.
Close valve if opened.
Step 5. Check position of
If lever moves
6. ENGINE STOPS SUDDENLY.
Step 1. Check fuel level.
speed control lever.
by itself from the RUN position, retighten retaining nut at the RUN position.
Add fuel if necessary.
Step 2. Check position of speed control lever.
If lever moves by itself to STOP position, retighten retaining nut.
Step 3. Check air flow indicator,
If air flow indicator reaches red line, service air filter element (para. 3-5).
7. ENGINE OVERHEATING.
Step 1. Check for dirty cooling air inlet.
Clean cooling air inlet if necessary.
Step 2. Check for dirty cooling ribs.
Clean cooling ribs.
Step 3. Check for excessive oil in crankcase.
If necessary, drain oil to normal level.
3-3
