Woodstock W1751 owner manual Troubleshooting, Motor & Electrical

W1751 25" Wide-Belt Sander

Troubleshooting

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.

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Motor & Electrical

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

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