Belt Sander/Bench Grinder with Light
8
For technical questions call: 1-800-665-8685
8359697
V 1.51
Symptom
Possible Cause
Corrective Action
Motor will not start
1. Low voltage.
2. Open circuit in motor or
loose connections.
1. Check power line for proper voltage.
2. Inspect all lead connections on motor for loose or
open connections.
Motor will not start, fuses or
Circuit breakers blow
1. Short circuit in line cord or plug.
2. Short circuit in motor or
loose connections.
3. Incorrect fuses or circuit breaker.
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.
Motor overheats
1. Motor overloaded.
1. Reduce load on motor.
Motor stalls (resulting in blown
fuses or tripped circuit)
1. Short circuit in motor or
loose connections.
2. Low voltage.
3. Incorrect fuses or circuit breakers in
power line.
4. Motor overloaded.
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.
Machine slows when operating
1. Depth of cut too great.
1. Slow down the rate of movement of the workpiece
into wheel.
Wavy condition on surface
of workpiece
1. Machine vibrating.
2. Workpiece not being held firmly.
3. Wheel face uneven.
4. Wheel is too hard.
1. Make sure machines is securely mounted on a
solid surface.
2. Use a holding device to firmly
retain the workpiece.
3. Dress the grinding wheel.
4. Use softer wheel, or reduce the feed rate.
Lines on surface of workpiece
1. Impurity on wheel surface.
2. Workpiece not being held tightly.
1. Dress the grinding wheel.
2. Use a holding device to firmly retain the
workpiece.
Burning spots or cracks
in the workpiece
1. Improper type of grinding wheel.
2. Improper feed rate.
3. Coolant required.
1. Try a wheel which is softer style or a coarser grit.
2. Slow down the rate of movement of the workpiece
into wheel.
3. Add optional coolant system or introduce coolant
by hand.
Wheel dulls quickly, grit falls off.
1. Depth of cut too great.
2. Wheel is soft.
3. Wheel diameter too small.
4. Bad wheel dress.
5. Defective wheel bonding.
1. Slow down the rate of movement of the workpiece
into wheel.
2. Wheel too soft for the material being ground,
select harder bond.
3. Replace the wheel.
4. Dress the wheel.
5. Consult manufacturer of grinding wheel.
Wheel clogs and workpiece shows
burn marks
1. Wheel is too hard.
2. Feed rate too slow.
3. Bad wheel dress.
4. Coolant required.
1. Wheel too hard for the material being ground,
select softer bond.
2. Increase the rate of movement of the workpiece
into wheel.
3. Dress the wheel.
4. Add optional coolant system or introduce coolant
by hand.
