Woodstock ST1000 Service, Troubleshooting, Motor, Problem, Possible Cause, Corrective Action

SERVICE

Troubleshooting

This section covers the most common problems and corrections with this type of machine.

WARNING! DO NOT make any adjustments until power is disconnected and moving parts have come to a complete stop!

Motor

PROBLEM	POSSIBLE CAUSE		CORRECTIVE ACTION
Machine does not start 1.	Plug/receptacle is at fault or wired	1.	Test for good contacts; correct the wiring.
or a breaker trips.	incorrectly.
2.	Start capacitor is at fault.	2.	Test/replace if faulty.
3.	Motor connection wired incorrectly.	3.	Correct motor wiring connections.

4.Power supply is at fault/switched OFF. 4. Ensure hot lines have correct voltage on all legs and main power supply is switched ON.

	5.	Lockout key is at fault.	5.	Install/replace lockout key; replace switch.
	6.	Motor ON button or ON/OFF switch is	6.	Replace faulty ON button or ON/OFF switch.
		at fault.
	7.	Wiring is open/has high resistance.	7.	Check for broken wires or disconnected/corroded connections,
				and repair/replace as necessary.
	8.	Motor is at fault.	8.	Test/repair/replace.
Machine stalls or is	1.	Wrong workpiece material (wood).	1.	Use wood with correct moisture content, without glues, and
underpowered.				little pitch/resins.
	2.	Workpiece alignment is poor.	2.	Eliminate workpiece binding; use jig, fence, guide, clamps, roller
				table, or pushblocks as required for workpiece alignment con-
				trol.
	3.	Run capacitor is at fault.	3.	Test/repair/replace.
	4.	Plug/receptacle is at fault.	4.	Test for good contacts; correct the wiring.
	5.	Motor wired incorrectly.	5.	Correct motor wiring connections.
	6.	Blade is slipping on wheels.	6.	Adjust blade tracking and tension to factory specifications.
	7.	Motor bearings are at fault.	7.	Test by rotating shaft; rotational grinding/loose shaft requires
				bearing replacement.
	8.	Machine is undersized for the task.	8.	Use sharp blade with lower TPI; reduce the feed rate/depth of
				cut.
	9.	Motor has overheated.	9.	Allow motor to cool, clean it off, and reduce workload.
	10.	Motor is at fault.	10.	Test/repair/replace.
Machine has vibration	1.	Bad blade weld or broken teeth.	1.	Replace blade or grind weld smooth.
or noisy operation.	2.	V-belt(s) worn or loose.	2.	Inspect/replace belts with a new matched set.
	3.	Motor fan is rubbing on fan cover.	3.	Replace dented fan cover; replace loose/damaged fan.
	4.	Pulley is loose.	4.	Realign/replace shaft, pulley, setscrew, and key as required.
	5.	Machine is incorrectly mounted or sits	5.	Tighten/replace anchor studs in floor; relocate/shim machine.
		unevenly on floor.
	6.	Motor bearings are at fault.	6.	Test by rotating shaft; rotational grinding/loose shaft requires
				bearing replacement.

ST1000 14" Bandsaw -33-