Woodstock W1770 manual Machine Operations, Cutting Tips on

SERVICE

			W1770 21" Bandsaw w/Foot Brake
Machine Operations
PROBLEM	POSSIBLE CAUSE		corrective action
Machine slows when oper- 1.	Feeding workpiece too fast.	1.	Reduce feed rate. See Basic Cutting Tips on Page
ating.			34.
2.	Blade is dull.	2.	Replace/sharpen blade (Page 43).

3.Brake is stuck or dragging on 3. Adjust foot brake. blade.

Ticking	sound when the			1.	Blade	weld	contacting support	1.	Use file or stone to smooth and round the back of
saw is running.					bearing.				the blade.
				2.	Blade weld may be failing.			2.	Inspect and replace blade if necessary (Page 43).
Blade contacting			table	1.	Excessive side pressure when cut-			1.	Reduce side pressure.
insert.					ting.				Adjust table (Page 27).
				2.	Table improperly adjusted.			2.
Vibration when cutting.				1.	Loose or damaged blade.			1.	Tighten or replace blade. See Page 43 or 22.
				2.	Blade is tracking incorrectly.			2.	Fix blade tracking (Page 17).
				3.	Blade tension is loose.			3.	Fix blade tension (Page 22).
Burn marks on the edge of				1.	Too much side pressure when feed-			1.	Feed workpiece straight into the blade. See Basic
the cut.					ing workpiece.				Cutting Tips on Page 34.
				2.	Blade too wide for size of radius			2.	Install a smaller width blade/increase blade tension.
					being cut.				See Page 22 or 43.
Machine	has	vibration or		1.	Blade weld hits guides or teeth are			1.	Replace blade (Page 43).
noisy operation when run-					broken.				Replace blade (Page 43).
ning.				2.	Bent or worn out blade.			2.
				3.	Motor or component is loose.			3.	Inspect/replace stripped or damaged bolts/nuts,
									and re-tighten with thread locking fluid.
				4.	V-belt worn or loose.			4.	Inspect/replace belts with matched set (Page 48).
				5.	Motor fan is rubbing on fan cover.			5.	Replace dented fan cover and loose/damaged fan.
				6.	Pulley is loose.			6.	Realign/replace shaft, pulley, setscrew, and key as
									required.
				7.	Machine is incorrectly mounted or			7.	Adjust the feet on the bottom of the stand; relocate
					sits unevenly on floor.				machine.
				8.	Motor bearings are at fault.			8.	Test by rotating shaft—rotational grinding/loose
									shaft requires bearing replacement.
				9.	Worn arbor bearings.			9.	Check/replace arbor bearings.
				10. Wheels		not	coplanar/aligned cor-	10. Adjust wheel alignment to coplaner (Page 52).
					rectly.
				11. Wheels out of balance.				11. Replace wheels.
Rough	or	poor	quality	1.	Feeding workpiece too fast.			1.	Reduce feed rate. See Basic Cutting Tips on Page
cuts.									34.
				2.	Tracking and tension incorrect.			2.	Fix tracking and tension (see Page 17 and 22).
Sawdust	buildup		inside	1.	Clogged dust port.			1.	Clean out dust port.
cabinet.				2.	Low CFM (airflow) from dust collec-			2.	Three options:
					tion system.				—Check dust lines for leaks or clogs.
									—Move dust collector closer to saw.
									—Install a stronger dust collector.
Blade wanders or won't fol-				1.	Blade lead.			1.	Refer to Blade Lead on Page 36.
low line of cut.
Brake does not slow or stop				1.	Bad shoes/pad is worn out.			1.	Replace brake pad (see Page 51).
machine.				2.	Limit switch is defective.			2.	Replace foot brake limit switch.

-58-