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Model G0795 (Mfd. Since 02/15)
-39-
Symptom Possible Cause Possible Solution
Tool slips in spindle. 1. Tool is not fully drawn up into
spindle taper.
2. Taking too big of a cut.
3. Debris on tool or in spindle taper.
1. Tighten drawbar.
2. Lessen depth of cut and allow chips to clear.
3. Clean collet and spindle taper.
Breaking tools or cutters. 1. Spindle speed/feed rate is too fast.
2. Cutting tool too small.
3. Cutting tool getting too hot.
4. Taking too big of a cut.
5. Spindle extended too far down.
1. Set spindle speed correctly (Page 26) or use slower
feed rate.
2. Use larger cutting tool and slower feed rate.
3. Use coolant or oil for appropriate application.
4. Lessen depth of cut and allow chips to clear.
5. Fully retract spindle and lower headstock. This
increases rigidity.
Workpiece vibrates or
chatters during operation.
1. Table locks not tight.
2. Workpiece not secure.
3. Spindle speed/feed rate is too fast.
4. Spindle extended too far down.
1. Tighten table locks.
2. Properly clamp workpiece on table or in vise.
3. Set spindle speed correctly (Page 26) or use a
slower feed rate.
4. Fully retract spindle and lower headstock. This
increases rigidity.
Table is hard to move. 1. Table locks are tightened down.
2. Chips have loaded up on ways.
3. Ways are dry and need lubrication.
4. Table limit stops are interfering.
5. Gibs are too tight.
1. Make sure table locks are fully released.
2. Frequently clean away chips that load up during
milling operations.
3. Lubricate ways (Page 35).
4. Check to make sure that all table limit stops are not
in the way.
5. Adjust gibs (see Page 40).
Bad surface finish. 1. Spindle speed/feed rate is too fast.
2. Workpiece not secure.
3. Spindle extended too far down.
4. Dull or incorrect cutting tool.
5. Wrong rotation direction of cutting
tool.
1. Set spindle speed correctly (Page 26) or use a
slower feed rate.
2. Properly clamp workpiece on table or in vise.
3. Fully retract spindle and lower headstock. This
increases rigidity.
4. Sharpen cutting tool or select one that better suits
the operation.
5. Check for proper cutting tool rotation direction.
Mill/Drill Operation