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-79-
Model W1888 (For Machines Mfd. Since 10/20)
SE
RV
IC
E
Troubleshooting
Motor.&.Electrical
PROBLEM
POSSIBLE.CAUSE
CORRECTIVE.ACTION
Machine does not
start, or power
supply breaker
trips immediately
after startup.
1. Switch disabling key removed.
2. Machine circuit breaker tripped.
3. Power supply circuit breaker tripped or fuse
blown.
4. Plug/receptacle at fault/wired incorrectly.
5. Motor wired incorrectly.
6. Wiring broken, disconnected, or corroded.
7. START/STOP switch or circuit breaker at fault.
8. Start capacitor at fault.
9. Motor at fault.
1. Install switch disabling key.
2. Reset circuit breaker on switch (
Page.83
).
3. Ensure circuit is sized correctly and free of shorts.
Reset circuit breaker or replace fuse.
4. Test for good contacts; correct wiring.
5. Correct motor wiring connections (
Page.83
).
6. Fix broken wires or disconnected/corroded connections.
7. Replace switch/circuit breaker.
8. Test/replace if at fault.
9. Test/repair/replace.
Machine stalls or
is underpowered.
1. Feed rate/cutting speed too fast.
2. Blade dull or incorrect for type of cut.
3. Workpiece unsuitable for machine.
4. Motor overheated; tripping machine circuit
breaker.
5. Belt slipping.
6. Pulleys slipping on shaft or misaligned.
7. Motor wired incorrectly.
8. Run capacitor at fault.
9. Motor bearings at fault.
10. Contactor not energized/has poor contacts.
11. Centrifugal switch at fault.
12. Motor at fault.
1. Decrease feed rate/cutting speed.
2. Use correct, sharp blade (
Page.34
).
3. Only cut wood; replace crooked workpiece/ensure
moisture is below 20%.
4. Clean motor/let cool and reduce workload; Reset
breaker.
5. Tension/replace belt (
Page.78
).
6. Tighten/replace loose pulley; ensure pulleys are
aligned (
Page.78
).
7. Wire motor correctly (
Page.83
).
8. Test/repair/replace.
9. Test/repair/replace.
10. Test all legs for power; replace if faulty.
11. Adjust/replace centrifugal switch if available.
12. Test/repair/replace.
Machine has
vibration or noisy
operation.
1. Motor or component loose.
2. Blade at fault.
3. Belt/pulley(s) worn, loose, or misaligned.
4. Motor mount loose/broken.
5. Arbor pulley loose.
6. Motor fan rubbing on fan cover.
7. Arbor bearings at fault.
8. Motor bearings at fault.
1. Inspect/replace damaged bolts/nuts, and re-tight-
en with thread-locking fluid.
2. Replace warped/bent blade; resharpen dull blade.
3. Inspect/replace belt. Realign/replace shaft, pulley,
set screw, and key (
Page.78
).
4. Tighten/replace.
5. Retighten/replace arbor pulley.
6. Fix/replace fan cover; replace loose/damaged fan.
7. Replace arbor housing bearings; replace arbor.
8. Test by rotating shaft; 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.
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