Model G0925 (Mfd. Since 02/20)
-29-
Drill Press Operations
Symptom
Possible Cause
Possible Solution
Tool falls out/loose
in spindle/chuck.
1. Tool loose or incorrectly installed.
2. Debris on tool or in spindle taper.
3. Excessive feed pressure.
1. Remove and re-install (
Page 21).
2. Clean tool and spindle taper, then re-install.
3. Decrease feed pressure and allow chips to clear.
Breaking tools or
cutters.
1. Spindle speed/feed rate too fast.
2. Taking too big of cut at one time.
3. Improper cutting technique or type of cut.
4. Cutting tool getting too hot.
5. Spindle extended too far down while
drilling.
1. Reduce spindle speed; reduce feed rate.
2. Decrease feed pressure and allow chips to clear by
raising but up then moving back down.
3. Use right technique, tool, or machine for job.
4. Use coolant or oil for appropriate application (
Page
19); reduce cutting speed (Page 20).
5. Retract spindle and raise table to increase rigidity.
Workpiece or tool
vibrates or chatters
during operation.
1. Spindle extended too far down while
drilling.
2. Table lock or lock bolt not tight.
3. Workpiece not secure.
4. Spindle speed/feed rate too fast.
1. Retract spindle and raise table to increase rigidity.
2. Tighten table lock or lock bolt (
Page 22).
3. Properly clamp workpiece on table or in vise.
4. Reduce spindle speed (
Page 20); reduce feed rate.
Table hard to move.
1. Table locked.
2. Dirty column.
1. Disengage table lock (
Page 22).
2. Clean away chips/debris. Lubricate column.
Spindle overheats.
1. Drill press operated too long at high
speeds.
1. Allow drill press to cool. Avoid operating at high
speeds for extended time.
Spindle does not
fully retract.
1. Poorly adjusted/worn return spring.
2. Debris on spindle/quill rack.
1. Replace spring/increase return spring tension
(
Page 30).
2. Clean and lubricate spindle/quill rack.
Drill bit drifts.
1. Dull/incorrectly sharpened drill bit.
2. Tool/bit incorrectly installed.
1. Correctly sharpen drill bit.
2. Correctly install tool/bit.
Drill bit stuck in
workpiece.
1. Workpiece loose.
2. Lack of proper lubrication for workpiece
material.
3. Bit/cutting tool loose in chuck.
4. Spindle speed/feed rate too slow/fast.
1. Properly clamp workpiece.
2. Use appropriate lubrication for application (
Page
19).
3. Remove and re-install (
Page 21).
4. Adjust spindle speed (
Page 20); feed rate.
Workpiece thrown
from table.
1. Workpiece not secure; bit too large for feed
speed.
1. Properly clamp workpiece on table or in vise;
decrease feed speed.
Excessive runout or
wobbling in chuck/
drill bit.
1. Debris between chuck-to-spindle mating
surface.
2. Tool/bit bent or installed incorrectly.
3. Spindle bearings worn.
1. Remove chuck, clean, deburr tapered chuck and
spindle mating surfaces, reassemble.
2. Install tool/bit correctly or replace (
Page 21).
3. Replace spindle bearings.
Depth stop
inaccurate.
1. Depth stop pointer placed incorrectly.
1. Adjust pointer on depth stop stud.
Backside of
workpiece splinters.
1. Scrap board not installed between table
and workpiece.
1. Install scrap board between table and workpiece.
Summary of Contents for G0925
Page 44: ......
