Grizzly G9743 owner manual Bandsaw Operations

Bandsaw Operations

SYMPTOM		POSSIBLE CAUSE		CORRECTIVE ACTION
Machine is loud when	1.	Excessive feed rate.	1.	Refer to Feed Rate on Page 24, or Changing
cutting or bogs down in				Blade Speed on Page 20, and adjust as required.
the cut.	2. The blade TPI is too great, or the		2. Refer to Blade Selection on Page 21 and adjust as
		material is too coarse.		required.
Blades break often.	1.	Blade is not tensioned correctly.	1.	Check to see that blade is not excessively tight or
				too loose.

2.The workpiece is loose in the vise. 2. Clamp the workpiece tighter, or use a jig to hold the

workpiece.

	3.	The feed or cut speed is wrong.	3.	Refer to Feed Rate on Page 24, or Changing
				Blade Speed on Page 20, and adjust as required.
	4.	The blade TPI is too great, or the	4.	Refer to Blade Selection on Page 21, and adjust
		material is too coarse.		as required.
	5.	The blade is rubbing on the wheel	5.	Refer to Blade Tracking on Page 33, and adjust as
		flange.		required.
	6.	The bandsaw is being started with	6.	Start bandsaw and then slowly lower the headstock
		the blade resting on the workpiece.		by setting the feed rate.
	7.	The guide bearings are	7.	Refer to Blade Tracking on Page 33, or Blade
		misaligned, or the blade is rubbing		Guides on Page 23, and adjust as required.
		on the wheel flange.
	8.	The blade is too thick, or the	8.	Use a higher quality blade.
		blades are of low quality.
Blade dulls prematurely.	1.	The cutting speed is too fast.	1.	Refer to Changing Blade Speed on Page 20, and
	2.	The blade TPI is too coarse.		adjust as required.
			2.	Refer to Blade Selection on Page 21, and adjust
	3.	The blade feed pressure is too		as required.
			3.	Refer to Feed Rate on Page 24, and adjust as
		light.		required.
	4.	The workpiece has hard spots,	4.	Increase the feed pressure, and reduce the cutting
		welds, or scale is on the material.		speed.
	5.	The blade is twisted.	5.	Replace the blade.
	6.	The blade is slipping on the	6.	Refer to Blade Tension on Page 34, and adjust as
		wheels.		required.
Blade wears on one side.	1.	The blade guides are worn or mis-	1.	Refer to Blade Guides on Page 23 and replace or
		adjusted.		adjust.
	2.	The blade guide slide bracket is	2.	Tighten the blade guide bracket.
		loose.
	3.	The wheels are out of alignment.	3.	Refer to Blade Tracking on Page 33, and adjust as
				required.
Teeth are ripping from the	1.	The feed pressure is too heavy	1.	Refer to Blade Selection on Page 21 and decrease
blade.		and the blade speed is too slow; or		the feed pressure. Refer to Feed Rate on Page 24,
		the blade TPI is too coarse for the		and adjust as required.
		workpiece.
	2.	The workpiece is vibrating in the	2.	Re-clamp the workpiece in the vise, and use a jig if
		vise.		required.
	3.	The blade gullets are loading up	3.	Use a coarser-tooth blade.
		with chips.
The cuts are crooked.	1.	The feed pressure is too high.	1.	Refer to Feed Rate on Page 24, and adjust as
	2.	The guide bearings are out of		required.
			2.	Refer to Blade Guides on Page 23 and replace or
		adjustment, or too far away from		adjust.
		the workpiece.
	3.	The blade tension is low.	3.	Refer to Blade Tension on Page 34, and adjust as
	4.	The blade is dull.		required.
			4.	Refer to Changing the Blade on Page 32 and
	5.	The blade speed is wrong.		replace the blade.
			5.	Refer to Changing Blade Speed on Page 20, and
				adjust as required.
G9743 7" x 12" Metal-Cutting Bandsaw				-31-