Grizzly G0759 owner manual Symptom Possible Cause Possible Solution

Symptom	Possible Cause		Possible Solution
Tool slips in collet.	1.	Collet is not fully drawn up into	1.	Tighten drawbar.
		spindle taper.
	2.	Wrong size collet.	2.	measure tool shank diameter and match with
				appropriate diameter collet.
	3.	Debris on collet or in spindle taper.	3.	Clean collet and spindle taper.
	4.	Taking too big of a cut.	4.	lessen depth of cut and allow chips to clear.
Breaking tools or cutters.	1.	Spindle speed too slow/feed rate is	1.	Set spindle speed correctly (Page 27) or use a
		too fast.		slower feed rate.
	2.	Cutting tool getting too hot.	2.	Use coolant fluid or oil for appropriate application.
				(Follow cutting fluid manufacturer's recommendation
				for proper use and safety.)
	3.	Taking too big of a cut.	3.	Decrease depth of cut.
	4.	Spindle extended too far down.	4.	Fully retract spindle and lower headstock. This
				increases rigidity.
Workpiece vibrates or	1.	Table locks not tight.	1.	Tighten down table locks (Page 32).
chatters during operation.	2.	Quill lock lever not tight.	2.	Tighten quill lock lever.
	3.	Workpiece not securely clamped to	3.	Check that clamping is tight and sufficient for the job.
		table or into mill vice.		Make sure mill vice is tight to the table.
	4.	Spindle speed is too slow /feed rate	4.	Set spindle speed correctly (Page 27) or use a
		is too fast.		slower feed rate.
	5.	Spindle extended too far down.	5.	Fully retract spindle and lower headstock. This
				increases rigidity.
Table is hard to move.	1.	Table locks are tightened down.	1.	Make sure table locks are fully released.
	2.	Chips have loaded up on ways.	2.	Frequently clean away chips that load up during
				milling operations.
	3.	Ways are dry and need lubrication.	3.	Lubricate ways and handles (Page 36).
	4.	Table limit stops are interfering.	4.	Check to make sure that all table limit stops are not
				in the way.
	5.	Gibs are too tight.	5.	Adjust gibs (see Page 41).
Bad surface finish.	1.	Spindle speed is too slow/feed rate	1.	Set spindle speed correctly (Page 27) or use a
		is too fast.		slower feed rate.

2.Using a dull or incorrect cutting tool. 2. Sharpen cutting tool or select one that better suits the

operation.

3.	Wrong rotation of cutting tool.	3.	Check for proper cutting rotation for cutting tool.
4.	Workpiece not securely clamped.	4.	Secure properly to the table.
5.	Spindle extended too far down.	5.	Fully retract spindle and lower headstock. This
			increases rigidity.

-40- Model G0704 (Mfg. Since 08/11)