Grizzly G0619 owner manual About Service, Troubleshooting

SECTION 7: SERVICE

About Service

Review the troubleshooting and procedures in this section to fix your machine if a problem develops. If you need replacement parts or you are unsure of your repair skills, then feel free to call our Technical Support at (570) 546-9663.

Troubleshooting

Symptom	Possible Cause			Possible Solution
Motor will not start.	1.	Emergency stop button is pressed.		1.	Reset switch or replace bad switch.
	2.	Chip guard switch at fault (Figure 40).		2.	Fully close chip guard, or replace bad
					switch.
	3.	Main power switch at fault (Figure 37).		3.	Turn dial on, or replace bad switch.
	4.	Blown power supply fuse (Figure 37).		4.	Repair short and replace 20A fuse.
	5.	Blown inverter fuse (Figure 36).		5.	Repair short and replace 15A fuse.
	6.	Shorted capacitor (Figure 36).		6.	Replace both capacitors.
	7.	Shorted transformer (Figure 36).		7.	Replace transformer.
	8.	Open circuit in motor or loose connec-		8.	Inspect circuit boards, wiring connec-
		tions.			tions, plugs, and repair/replace as
					required (Page 31).
Feed handle tapping button does not	1.	Machine is not in "Tapping Mode."		1.	Press the START and then the
work.					TAPPING buttons (Page 20).
	2.	Tapping button slip ring switch is at		2.	Replace tapping button slip ring
		fault (Figure 40).			switch.
	3.	General electrical problem.		3.	Inspect circuit boards, wiring connec-
					tions, plugs, and repair/replace as
					required (Page 31).
Control panel FORWARD and	1.	Machine is not in "Mill/Drill Mode."		1.	Press the STOP and then the START
REVERSE buttons do not work.					buttons (Page 20).
	2.	General electrical problem.		2.	Inspect circuit boards, wiring connec-
					tions, plugs, and repair/replace as
					required (Page 31).
Poor surface finishes.	1.	Feed rate too fast.		1.	Slow feed rate.
	2.	Dull cutter.		2.	Always use newly sharpened cutters.
	3.	Lock not tightened down.		3.	Tighten column and table locks when
					possible to maintain rigidity.
	4.	Gibs loose.		4.	Adjust gib (Page 27).
Vibration when running or cutting.	1.	Feed rate too high.		1.	Slow feed rate or adjust RPM.
	2.	Loose table.		2.	Tighten table locks.
	3.	Loose gibs.		3.	Adjust gib (Page 27).
Headstock hard to raise.	1.	Headstock lock or gib is at fault.		1.	Loosen/replace lock lever and adjust
					gib (Page 27).
	2.	Headstock lead screw is binding.		2.	Clean and relubricate headstock
					leadscrew and gears (Page 28).
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