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.

 

5.

Making a climb cut.

5.

Reverse feed direction to avoid climb cuts.

 

 

 

 

 

Breaking tools or cutters.

1.

Spindle speed is too slow/feed rate

1.

Set spindle speed correctly (Page 29) or use a

 

 

is too fast.

 

slower feed rate.

 

2.

Cutting tool getting too hot.

2.

Use coolant fluid or oil for appropriate application.

 

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 35).

chatters during operation.

2.

Quill lock lever not tight.

2.

Tighten quill lock lever (Page 31).

 

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 29) 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 39).

 

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 43).

 

 

 

 

 

Bad surface finish.

1.

Spindle speed is too slow/feed rate

1.

Set spindle speed correctly (Page 29) 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 direction of rotation of cutting 3. Check for proper direction of cutting rotation for

 

tool.

 

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.

-42-

Model G0705 (Mfg. since 09/09)

Page 44
Image 44
Grizzly G0705 owner manual Symptom Possible Cause Possible Solution