Woodstock W1751 - Manual (Page 35)

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W1751 25" Wide-Belt Sander
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RV
IC
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This section is provided for your convenience—it is not a substitute for the Woodstock
Service Department. If you need help troubleshooting, you need replacement parts, or
you are unsure of how to perform the procedures in this section, then feel free to call our
Technical Support at (360) 734-3482.
Troubleshooting
Motor & Electrical
SYMPTOM POSSIBLE CAUSE CORRECTIVE ACTION
Machine does not
start or a breaker
trips.
1. Emergency stop push-button is engaged/
faulty.
2. Power supply is at fault/switched OFF.
3. Wall fuse/circuit breaker is blown/
tripped.
4. Fuse in machine electrical box has blown.
5. Sanding belt position limit switch is
depressed/at fault.
6. Plug/receptacle is at fault or wired
incorrectly.
7. Thermal overload relay has tripped.
8. Start capacitor is at fault.
9. Motor ON button or ON/OFF switch is at
fault.
10. Contactor not getting energized/has
burnt contacts.
11. Wiring is open/has high resistance.
12. Emergency stop push-panel is stuck/
switch is at fault.
13. Centrifugal switch is at fault.
14. Motor is at fault.
15. Motor connection wired incorrectly.
1. Rotate clockwise slightly until it pops
out/replace it.
2. Ensure hot lines have correct voltage
on all legs and main power supply is
switched ON.
3. Ensure power supply circuit is correct
size for machine startup load; replace
weak breaker.
4. Correct short/replace fuse in machine
electrical box.
5. Adjust belt tracking to correct working
range; replace faulty limit switch.
6. Test for good contacts; correct the
wiring.
7. Turn cut-out dial to increase working
amps and push the reset pin. Replace if
tripped multiple times (weak relay).
8. Test/replace if faulty.
9. Replace faulty ON button or ON/OFF
switch.
10. Test for power on all legs and contactor
operation. Replace unit if faulty.
11. Check for broken wires or disconnected/
corroded connections, and repair/replace
as necessary.
12. Free push-panel from binding; replace
faulty switch.
13. Adjust/replace the centrifugal switch in
the motor.
14. Test/repair/replace.
15. Correct motor wiring connections.
Motor stalls
(resulting in
blown fuses or
tripped circuit).
1. Feed rate too high.
2. Depth of cut too great.
1. Feed workpiece slower.
2. Reduce depth of cut.
Loud, repetitious
noise coming from
machine
1. Pulley set screws or keys are missing or
loose.
2. Motor fan is hitting the cover.
3. V-belt is at fault.
1. Inspect keys and set screws. Replace or
tighten if necessary.
2. Replace motor fan.
3. Replace V-belt.
Machine is loud,
overheats or bogs
down in the cut.
1. Excessive depth of cut.
2. Dull sanding belt.
1. Decrease depth of cut.
2. Replace sanding belt.
OFF