Operation

Symptom

Possible Cause

Possible Solution

Tool slips in collet.

1.

Collet is not fully drawn into spindle taper.

1.

Snug up drawbar.

 

2.

Wrong size collet.

2.

Use correct collet for shank diameter.

3.Debris on collet or spindle mating surface. 3. Remove oil and debris from collet and spindle mating surfaces, then re-install.

 

 

 

4.

Excessive depth of cut.

4.

Decrease depth of cut and allow chips to clear.

 

 

 

 

 

Breaking tooling.

1.

Spindle speed/feed rate too fast.

1.

Use correct spindle RPM and feed rate (Page 28).

 

 

 

2.

Tooling getting too hot.

2.

Use coolant; reduce spindle RPM/feed rate.

 

 

 

3.

Excessive depth of cut.

3.

Decrease depth of cut and allow chips to clear.

 

 

 

 

 

 

 

Machine

is

loud

1.

Excessive depth of cut.

1.

Decrease depth of cut and allow chips to clear.

when

cutting;

2.

Dull tooling.

2.

Use sharp tooling.

overheats

or

bogs

3.

Feed rate too fast.

3.

Decrease feed rate.

down in the cut.

 

 

 

 

Workpiece

vibrates

1.

Locks not tight.

1.

Tighten all locks on mill that are not associated with

or chatters

during

 

 

 

movement for the operation.

operation.

 

 

2.

Workpiece not securely clamped to table or

2.

Check that clamping is tight and sufficient for the

 

 

 

 

 

 

 

mill vise.

 

operation; make sure mill vise is tight to table.

 

 

 

3.

Tooling not secure or is damaged.

3.

Secure tooling; replace if damaged.

 

 

 

4.

Spindle speed/feed rate too fast.

4.

Use correct spindle RPM and feed rate (Page 28).

 

 

 

5.

Gibs are too loose.

5.

Adjust gibs properly (Page 40).

 

 

 

 

 

Table hard to move.

1.

Locks are tightened down.

1.

Fully loosen locks needed for movement.

 

 

 

2.

Chips have loaded up on the ways.

2.

Frequently clean away chips that load up during

 

 

 

 

 

 

operations.

 

 

 

3.

Ways are dry and in need of lubrication.

3.

Use one-shot oiler to lubricate ways (Page 36).

 

 

 

4.

Gibs are too tight.

4.

Adjust gibs properly (Page 40).

 

 

 

 

 

Bad surface finish.

1.

Wrong spindle speed/feed rate.

1.

Use correct spindle RPM and feed rate (Page 28).

 

 

 

2.

Dull/damaged tooling; wrong tooling for

2.

Sharpen/replace tooling; use correct tooling for

 

 

 

 

operation.

 

operation.

 

 

 

3.

Wrong spindle rotation for tooling.

3.

Check for proper spindle rotation for tooling.

 

 

 

4.

Workpiece not securely clamped to table or

4.

Check that clamping is tight and sufficient for the

 

 

 

 

mill vise.

 

operation; make sure mill vise is tight to table.

 

 

 

5.

Gibs are too loose.

5.

Adjust gibs properly (Page 40).

Model G0695 (Mfg. Since 9/10)

-39-

Page 41
Image 41
Grizzly G0695 owner manual Operation