B&C Technologies DI-475 Industrial - Manual (Page 45)

Y. Excessive noise and/or vibration…
1. Dryer not leveled properly
2. Impeller (fan) out of balance
a. Excessive lint build up on impeller (fan)…check air jet
b. Failed impeller (fan)
3. Loose motor mount
4. Failed idler bearings and/or tumbler bearings
5. V-belt(s) either too tight or too loose
6. Soft start device not adjusted properly
7. Tumbler drive wheels are worn or loose
8. Set screws of the tumbler drive shaft bearings are loose
9. Failed motor bearings
10. Drive wheel transtorque is loose
Z. Scrapping or rubbing noise in basket (tumbler) area or around front or rear
panels…
1. Check for object(s) caught somewhere in basket (tumbler)
2. Mis-adjusted thrust wheel(s)
3. Failed thrust wheel (s)
AA. Basket (tumbler) jumps or makes excessive noise when dryer is first started or
between forward and reverse cycles
1. Soft start out of proper adjustment
BB. Blower (impeller/fan) air jet does not activate at the end of cooling cycle *With
microprocessor controller (computer) “A JET” relay output L.E.D. on
1. Fault in compressed air supply
2. Failed air jet
*With microprocessor controller (computer) “A JET” relay output L.E.D. off
1. Failed microprocessor controller (computer)