American Dryer Corp. AD-310 Phase 7 Tilting - Manual (Page 70)

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2. Impellor (fan/blower) out of balance...
a. Excessive lint buildup on impellor (fan/blower)...check air jet.
b. Failed impellor (fan/blower).
3. Loose motor mount.
4. Failed idler bearings or basket (tumbler) bearings.
5. V-belt(s) either too tight or too loose.
6. Basket (tumbler) drive wheels are worn or are loose.
7. Setscrews of basket (tumbler) drive shaft bearings are loose.
8. Failed motor bearing.
9. Drive wheel is loose.
10. Failed drive wheel.
S. Dryer will not tilt...
* Tilt to load.
1. Correct door signals are not present...
a. Door open to tilt up.
b. Door closed to tilt level.
2. Defective proximity switch.
3. No (external) compressed air to pneumatic switches...80 PSI (5.51 bars) required (11 cf/hr [0.31
cm/hr]).
4. Lint drawer is open.
* Tilt to unload.
1. Correct door signals are not present...
a. Door open to tilt down.
b. Door closed to tilt level.
2. Defective proximity switch.
3. No (external) compressed air to pneumatic switches...80 PSI (5.51 bars) required (11 cf/hr [0.31
cm/hr]).
4. Lint drawer is open.