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Page 18 AMERICAN SANDERS TECHNOLOGY Apollo 8 Operator's Manual
Troubleshooting
Problem Cause Action
Drive belts slip. Insufficient tension. Tension drive belt as described in
(Squeaking or squealing sound) adjustment procedures. (See pg. 7)
Worn belts. Replace belts.
Squealing, growling or grinding Damaged and/or worn bearing. Remove drive belts, rotate arbor
noise coming from machine. motor, fan, shafts and idler pulley to
locate dragging or rough bearing.
Contact an authorized ALTO dealer.
Dust pickup is poor. Dust bag is over 1/3 full. Empty contents of bag.
Dust bag is dirty. Shake debris from bag and wash.
Dust shoe is improperly adjusted. Readjust dust shoe.
Dust chute is obstructed. Remove fan cover and clear throat.
Motor will not start. Defective motor starter. Contact an authorized ALTO dealer.
Defective start capacitor. Contact an authorized ALTO dealer.
Defective electronic start switch. Contact an authorized ALTO dealer.
Low voltage from poor connection. Contact an authorized ALTO dealer.
Defective motor. Contact an authorized ALTO dealer.
No power. Check power supply and
connections.
Motor runs sluggishly. Low voltage from excessive Locate power source nearer to work
footage, undersized extension site. Decrease sanding pressure.
cord, or poor connection.
Defective run capacitor. Contact an authorized ALTO dealer.
Defective motor. Contact an authorized ALTO dealer.
Motor circuit breaker trips/ Excessive load. Contact an authorized ALTO dealer.
repeatedly trips.
Defective electronic start switch. Contact an authorized ALTO dealer.
Defective motor starter. Contact an authorized ALTO dealer.
Low voltage from poor connection. Contact an authorized ALTO dealer.
Defective motor. Contact an authorized ALTO dealer.
Defective capacitor. Contact an authorized ALTO dealer.
Uneven cuts. Leveling out of adjustment. Readjust leveling. Fig. 13 page 15.
Abrasive belt tracking. Adjust belt to track towards the edge
of drum with deepest cut.