American Dryer AD-120ES - Manual (Page 50)

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B. ADJUSTMENTS
7 Days After Installation and Every 6 Months Thereafter
Inspect bolts, nuts, screws (bearing set screws), non-permanent gas connections (unions, shut-off valves,
orifices, and grounding connections). Motor and drive belts should be examined. Cracked or seriously
frayed belts should be replaced. Tighten loose V-belts when necessary. Complete operational check of
controls and valves. Complete operational check of ALL safety devices (door switch, lint drawer switch,
sail switch, burner and hi-limit thermostats).
C. LUBRICATION
1. Impellor (fan/blower) shaft bearings should be lubricated every (3) months. Use a #3 grease or equivalent.
2. The motor bearings, idler bearings, and tumbler bearings are permanently lubricated.
NO LUBRICATION IS NECESSARY.