Section 7: Service; Troubleshooting Machine - Grizzly G0563 Owner's Manual

SECTION 7: SERVICE

Review the troubleshooting and procedures in this section if a problem develops with your machine. If you
need replacement parts or additional help with a procedure, call our Technical Support at (570) 546-9663.
Note: Please gather the serial number and manufacture date of your machine before calling.
SYMPTOM POSSIBLE CAUSE
Motor will not start.
1. Low voltage.
2. Open circuit in motor or loose connec-
Motor will not start; fuses or 1. Short circuit in line cord or plug.
circuit breakers blow.
2. Short circuit in motor or loose connec-
3. Incorrect fuses or circuit breakers in
Motor overheats.
1. Motor overloaded.
2. Air circulation through the motor restrict-
Motor stalls (resulting in 1. Short circuit in motor or loose connec-
blown fuses or tripped cir-
cuit).
2. Low voltage.
3. Incorrect fuses or circuit breakers in
4. Motor overloaded.
Machine slows when oper- 1. Applying
ating.
2. Undersized circuit or using ext cord.
3. Run capacitor is a fault.
Loud, repetitious noise com- 1. Main drive roller hex nut is missing or
ing from machine.
2. Motor fan is hitting the cover.
Machine vibrates exces- 1. Stand not stable on floor.
sively. 2. Loose motor mounting.
3. Weak or broken tension spring.
4. Idler roller is too loose.
5. Broken/defective sanding belt.
-32-

Troubleshooting Machine

tions.
tions.
power line.
ed.
tions.
power line.
too much pressure
workpiece.
loose.
CORRECTIVE ACTION
1. Check power line for proper voltage.
2. Inspect all lead connections on motor for loose or open connec-
tions.
1. Inspect cord or plug for damaged insulation and shorted wires.
2. Inspect all connections on motor for loose or shorted terminals
or worn insulation.
3. Install correct fuses or circuit breakers.
1. Reduce load on motor.
2. Clean out motor to provide normal air circulation.
1. Inspect connections on motor for loose or shorted terminals or
worn insulation.
2 Correct the low voltage conditions.
3. Install correct fuses or circuit breakers.
4. Reduce load on motor.
to 1. Sand with less pressure—let the movement of the belt do the
work.
2. Make sure circuit wires are proper gauge & don't use extension
cords!
3. Replace run capacitor.
1. Inspect keys and setscrews. Replace or tighten if necessary.
2. Tighten fan or shim cover.
1. Secure stand to floor, reposition to level surface, or shim stand.
2. Check/tighten motor mounting.
3. Replace spring.
4. Adjust idler roller.
5. Replace sanding belt.
Disconnect power to the
machine when performing
any troubleshooting.
Failure to do this may result
in serious personal injury
Model G0563/G0564 (Mfd. Since 10/11)