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 TM 55-1905-219-14-8
4-5. GENERAL (Continued).
Table 4-18. Washer/Dryer Troubleshooting (Continued.)
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
15.
Dryer drum will not rotate - motor operating.
Step 1.
Drive pulley loose on motor shaft.
Check for driver secure on motor shaft. Tighten as necessary.
Step 2.
Belt loose - improper tension.
Check for proper alignment of belt and idler pulley.
Check idler pulley spring and arm. Replace spring, if unable to adjust.
16.
Drum speed too fast.
Belt engagement with drive pulley not correct.
Check belt to be sure the ribs are against drum and that ribs fit into
grooves of motor driver.
17.
Drum speed too slow - noisy or vibrating.
Step 1.
Belt slippage.
Check belt for proper tension supplied by idler arm and drive pulley.
Step 2.
Felt seals out of place.
Check felt seals on each rim of drum for proper position.
Step 3.
Drum support wheels binding.
Check for proper rotation of wheels and lubricate or replace if
necessary.
Step 4.
Motor or motor mount loose.
Check for secure positioning of motor mount and motor.
4-72
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