TM 10-4520-259-13&P
Table 4-2. Unit Troubleshooting Procedure
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
9.
BLOWER MOTOR CONTACTOR CONTINUES TO TRIP
Inspect fuel pump and motor for obstructions or binding.
Loosen set screw at fuel pump shaft and check blower rotation. Replace fuel pump motor if necessary.
10.
EXHAUST GAS FROM SMOKE STACK (M-80) OR EXHAUST DUCT (M-85) IS SMOKY
Step 1.
Inspect burner spark plug spark.
Adjust or replace spark plugs as necessary.
Step 2.
Determine if fuel is contaminated.
Drain fuel supply into another container and refill fuel container with uncontaminated
fuel as necessary.
Step 3.
Determine if fuel nozzle or screen is clogged.
Clean or replace clogged nozzles as necessary.
Step 4.
Inspect blower operation for obstruction.
Loosen setscrew at fuel pump shaft and check blower rotation.
Step 5.
Determine if power source provides adequate voltage.
If power source is inadequate, notify your supervisor.
11.
SMOKE ESCAPING FROM AROUND SMOKEBOX COVER
Step 1.
Inspect smoke box gasket for excess wear and deterioration.
Replace gasket if necessary.
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