Woodstock W1812 manual Remove/replace brushes

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Machine has excessive	1.	Motor fan rubbing on fan cover.	1. Fix/replace fan cover; replace loose or damaged
vibration or noise.				fan.
	2.	Machine incorrectly mounted on	2.	Level/shim base; tighten/adjust mounting hardware
		floor or mobile base.		or feet.
	3.	Motor mounting loose.	3. Tighten mounting bolts/nuts; use thread locking
				fluid.
	4.	V-belt at fault.	4.	Replace V-belt.
	5.	Headstock gib loose.	5.	Clean, re-lubricate, and readjust headstock gib
				(Page 38).
	6.	Knives are dull.	6.	Re-sharpen/replace knives.
	7.	Motor brushes worn/at fault (feed	7.	Replace brush set (Page 35).
		motor only).
	8.	Pulley loose or not in alignment;	8.	Replace worn pulley, key, and shaft, and realign.
		shaft bent.
	9.	Gearbox at fault (feed motor	9.	Rebuild gearbox for bad gear(s)/bearing(s).
		only).
	10.	Centrifugal switch out of	10.	Adjust/replace centrifugal switch.
		adjustment; at fault (main motor
		only).
	11.	Motor bearings worn or damaged.	11.	Replace motor bearings or replace motor.
	12.	Cutterhead bearings at fault.	12.	Replace bearing(s)/realign cutterhead.
Machine stalls or slows	1.	Too much pressure when feeding	1.	Reduce pressure when feeding workpiece.
when operating.		workpiece.
	2.	Workpiece is warped.	2.	Straighten workpiece or use a different one.
	3.	Rails are incorrectly adjusted.	3.	Adjust/calibrate rails.
	4.	Workpiece material not suitable	4.	Only cut applicable metals with the correct grade
		for machine.		and size of blade or bit.
	5.	Feed rate or cutting speed too	5.	Decrease feed rate or cutting speed.
		fast.
	6.	Belt slipping.	6.	Tension/replace belt; ensure pulleys are aligned.
	7.	Pulley or sprocket slipping on	7.	Replace pulley and key or set screw. Replace shaft
		shaft.		if worn.
	8.	Motor connection wired	8.	Review wiring diagram under motor junction box
		incorrectly.		cover; correct wire connections.
	9.	Motor brushes at fault (feed motor	9.	Remove/replace brushes.
		only).
	10. Circuit board at fault.		10. Inspect circuitry for arcing or burns. Replace if at
				fault (wiring diagram on Page 40).
	11. Motor speed rheostat at fault.		11. Test and replace if at fault.
	12. Contactor has poor contacts.		12.Test all legs for continuity and power, test field coil
				and replace if at fault.
	13. Centrifugal switch at fault.		13. Adjust/replace centrifugal switch if available.
	14. Motor at fault.		14. Test for shorted windings, bad bearings and repair
				or replace.
	15. Gears in gearbox broken, slipping,		15. Replace for broken or slipping gears.
		or stuck.
Handwheel binds or is	1.	Lock lever is tightened.	1.	Loosen lock lever knob.
difficult to move.	2.	Burr, debris, or gunk hindering way	2.	De-burr, clean and re-lubricate the handwheel
		and column slide.		leadscrew, ways, and gib.
	3.	Bushings worn, dry, or damaged.	3.	Clean/lubricate/replace shaft and bushings.

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