American Dryer Corp. Phase 5 Microprocessor AD-170 - Manual (Page 38)

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6. Align motor pulley with idler pulley and align motor shaft with idler shaft and tighten bolts.
7. Replace belts and adjust belt tension.
8. Retighten bolts.
9. Reestablish power to dryer.
To Replace Impellor Motor
(Fan Shaft Drive - Steam Models 50 & 60 Hz and 50 Hz Gas Models ONLY)
1. Discontinue power to dryer.
2. Remove drive belts.
3. Disconnect wiring harness from motor.
4. Remove bolts holding motor to mount
and replace with new motor.
Do not tighten bolts.
5. Remove pulley from old motor and
install on new motor.
6. Align motor pulley with fan shaft pulley
and tighten bolts.
7. Replace belts and adjust belt tension.
8. Retighten bolts.
9. Reestablish power to dryer.