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Milling Operation and Finish Results
PROBLEM
Poor surface finishes.
Vibration when running or
cutting.
Headstock hard to raise.
POSSIBLE CAUSE
1. Feed rate too fast.
2. Dull or bent cutter.
3. Spindle speed incorrect.
4. Lock lever(s) loose.
5. Spindle is extended too far down.
6. Gibs loose.
1. Feed rate too high.
2. Spindle is extended too far down.
3. Loose table.
4. Loose gibs.
1. Headstock lock or gib is at fault.
2. Dovetail is binding.
3. Headstock lead screw is binding.
M1111 Mill with Dovetail Column
1. Slow feed rate.
2. Replace or sharpen cutter.
3. Recalculate and reset spindle RPM (Page
20).
4. Tighten column and table locks when pos-
sible to maintain rigidity.
5. Retract the spindle into the headstock
completely, and lower headstock to the
work area to maintain maximum rigidity.
6. Adjust the gibs (Pages 27 & 28).
1. Slow feed rate or adjust RPM.
2. Retract the spindle into the headstock
completely, and lower headstock to the
work area to maintain maximum rigidity.
3. Tighten table locks.
4. Adjust the gibs (Pages 27 & 28).
1. Loosen/replace lock lever and adjust gib
Adjust the gibs (Page 28).
2. Clean and relubricate dovetail and ways
(Page 29).
3. Clean and relubricate headstock leadscrew
and gears (Page 29).
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CORRECTIVE ACTION
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