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Model W1686 (For Machines Mfd. Since 11/10)
SE
RV
IC
E
SERVICE
Troubleshooting
Motor.and.Electrical
PROBLEM
POSSIBLE.CAUSE
CORRECTIVE.ACTION
Machine does not
start, or power
supply breaker
trips immediately
after startup.
1. Switch disabling key removed.
2. Power supply circuit breaker tripped or fuse
blown.
3. Wiring open/has high resistance.
4. Start capacitor at fault.
5. ON/OFF switch at fault.
6. Motor at fault.
1. Install switch disabling key.
2. Ensure circuit is sized correctly and free of shorts.
Resent circuit breaker/replace fuse.
3. Check/fix broken, disconnected, or corroded wires.
4. Test/replace.
5. Test/replace.
6. Test/repair/replace.
Machine stalls or
is underpowered.
1. Sanding sleeve loaded up.
2. Sanding sleeve worn or damaged.
3. Machine undersized for task.
4. Motor overheated.
5. Motor at fault.
6. Motor bearings at fault.
1. Clean sanding sleeve (
Page 31).
2. Replace sanding sleeve (
Page 25).
3. Reduce feed rate/workpiece pressure.
4. Clean motor, let cool, and reduce workload.
5. Test/repair/replace.
6. Test/repair/replace.
Machine has
vibration or noisy
operation.
1. Sanding sleeve out of balance or loose.
2. Motor or component loose.
3. Motor bearings at fault.
1. Ensure sanding sleeve is properly installed (
Page
25).
2. Retighten loose bolts/nuts; replace if damaged.
3. Test by rotating shaft; rotational grinding/loose
shaft requires bearing replacement.
The following troubleshooting tables cover common problems that may occur with this machine. If you
need replacement parts or additional troubleshooting help, contact our Technical Support.
Note:
Before contacting Tech Support, find the machine serial number and manufacture date, and if
available, your original purchase receipt. This information is required to properly assist you.
Summary of Contents for Shop Fox W1686
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