Grizzly G0554Z owner manual Operation and Work Results

Operation and Work Results

Symptom	Possible Cause		Possible Solution
Bad surface	1.	Incorrect spindle speed or feed rate.	1.	Adjust for proper spindle speed and feed rate.
finish.	2.	Dull tool or poor tool selection.	2.	Use sharp tools; use correct tool for the operation.
	3.	Depth of cut too great.	3.	Reduce depth of cut and take more passes.
	4.	Too much play in gibs.	4.	Adjust gibs (Page 58).
	5.	Tool too high.	5.	Lower tool position.
Entire machine	1.	Workpiece is unbalanced.	1.	Reinstall workpiece so it is as centered with the
vibrates				spindle bore as possible.
excessively upon	2.	Worn or broken gear present.	2.	Inspect gears and replace if necessary.
startup and while	3.	Chuck or faceplate has become unbalanced.	3.	Re-balance/replace chuck or faceplate; contact a
running.				local machine shop for help.
	4.	Spindle bearings at fault.	4.	Tighten or replace spindle bearings (Page 62).
Cutting tool	1.	Tool holder not tight enough.	1.	Check for debris, clean, and retighten.
or machine	2.	Cutting tool sticks too far out of tool holder;	2.	Reinstall cutting tool so no more than 1⁄3 of the total
components		lack of support.		length is sticking out of tool holder and it is secured
vibrate				by at least two post bolts.
excessively	3.	Depth of cut too great.	3.	Reduce depth of cut and take more passes.
during cutting.	4.	Gibs are out of adjustment.	4.	Adjust gibs of affected component (Page 58).
	5.	Dull cutting tool.	5.	Replace or re-sharpen cutting tool.
	6.	Incorrect spindle speed or feed rate.	6.	Use the recommended spindle speed or feed rate.
Can't remove	1.	Quill not retracted all the way back into the	1.	Turn the quill handwheel until it forces taper out of
tapered tool from		tailstock.		quill.
tailstock quill.	2.	Debris not removed from taper before inserting	2.	Always make sure that taper surfaces are clean.
		into quill.
Cross slide,	1.	Gibs are out of adjustment.	1.	Adjust gibs of affected component (Page 58).
compound rest,	2.	Handwheel is loose.	2.	Tighten handwheel fasteners.
or carriage	3.	Lead screw mechanism worn or out of	3.	Tighten any loose fasteners on lead screw
feed has sloppy		adjustment.		mechanism; adjust backlash (cross slide only, Page
operation.				58).
Cross slide,	1.	Gibs are loaded up with shavings or grime.	1.	Remove gibs, clean ways/dovetails, lubricate, and
compound rest,				re-adjust gibs (Page 58).
or carriage feed	2.	Gibs are too tight.	2.	Loosen gibs slightly, and lubricate bedways (Page
handwheel is				58).
hard to move.	3.	Backlash setting too tight (cross slide only).	3.	Slightly loosen backlash setting (Page 58).
	4.	Bedways are dry.	4.	Lubricate bedways and carriage components (Page
				51).
Inaccurate	1.	Headstock and tailstock are not properly	1.	Realign the tailstock to the headstock spindle bore
turning results		aligned with each other.		center line (Page 33).
from one end of	2.	Bedways are not level from side-to-side or	2.	Re-level the machine.
the workpiece to		front-to-back.
the other.
Chuck jaws won't	1.	Chips lodged in the jaws.	1.	Remove jaws, clean and lubricate chuck threads,
move or don't				and replace jaws.
move easily.
Carriage won't	1.	Carriage lock lever tightened.	1.	Loosen the carriage lock lever.
feed, or hard to	2.	Gears are not all engaged or broken.	2.	Adjust gear positions or replace.
move.	3.	Gibs are too tight.	3.	Loosen gibs slightly (Page 58).
	4.	Lead screw shear pin has sheared.	4.	Correct the cause of shear pin breakage, and
				replace shear pin (Page 60).
Tailstock quill will	1.	Quill lock lever is tightened.	1.	Loosen quill lock lever.
not feed out of
tailstock.

Model G0554Z (Mfg 01/09+) -57-