Table 2-5. UNIT DRYER TROUBLESHOOTING PROCEDURES - continued
TEST OR INSPECTION
Step 4. Check for clogged or damaged burner nozzle and electrodes adjustment.
Clean clogged burner nozzle and adjust or replace damaged nozzle. Refer to paragraph 2-54, Gas-Oil
If problems still exists, notify Direct Support.
DRYER TUMBLER DOES NOT ROTATE.
Step 1. Check for improperly adjusted or defective door switch.
If switch needs adjustment, adjust door. Refer to paragraph 2-65, Door Switch.
If switch is defective, replace door switch. Refer to paragraph 2-65, Door Switch.
Step 2. Check for cracked, worn, or broken motor parts, damaged shaft threads, and bent shaft and chain.
If motor or chain is damaged, replace motor or chain. Refer to paragraph 2-69, Fan and Motor.
If problem persists, notify Direct Support.
DRYER FUEL PRESSURE (AS INDICATED ON GAGE) PULSATES.
Step 1. Check for defective fuel pressure gage.
If gage is defective, replace fuel pressure gage. Refer to paragraph 2-53, Rotary Pump.
Step 2. Check for loose bypass plug in rotary pump.
If bypass plug is loose, tighten bypass plug.
Step 3. Check solenoid nonmetallic hose valve for sticking.
If sticking, replace. Refer to paragraph 2-70, Solenoid Nonmetallic Hose Valve.
Step 4. Check rotary pump for binding or sticking.
If rotary pump is binding or sticking, replace per paragraph 2-53, Rotary Pump.
DRYER FLAME PULSATES.
Step 1. Check for improper air shutter adjustment. Exhaust gases should be clear after two seconds.
If exhaust gas is not clear, adjust air shutter.