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Drill Press Operations
Symptom
Possible Cause
Tool falls out/loose
1. Tool loose or incorrectly installed.
in spindle/chuck.
2. Debris on tool or in spindle taper.
3. Excessive feed pressure.
Breaking tools or
1. Spindle speed/feed rate too fast.
cutters.
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
Workpiece or tool
1. Spindle extended too far down while
vibrates or chatters
during operation.
2. Table locks not tight.
3. Workpiece not secure.
4. Spindle speed/feed rate too fast.
Table hard to move.
1. Table locked.
2. Dirty or dry rack and pinion.
Spindle overheats.
1. Drill press operated too long at high
Spindle does not
1. Poorly adjusted/worn return spring.
fully retract.
2. Debris on spindle/quill rack.
Drill bit drifts.
1. Dull/incorrectly sharpened drill bit.
2. Tool/bit/chuck incorrectly installed.
Drill bit stuck in
1. Workpiece loose.
workpiece.
2. Lack of proper lubrication for workpiece
3. Bit/cutting tool loose in chuck.
4. Spindle speed/feed rate too slow/fast.
Workpiece thrown
1. Workpiece not secure; bit too large for feed
from table.
Excessive runout or
1. Debris between chuck-to-spindle mating
wobbling in chuck/
drill bit.
2. Tool/bit bent or installed incorrectly.
3. Spindle bearings worn.
Depth stop
1. Depth stop not calibrated.
inaccurate.
Backside of
1. Scrap board not installed between table
workpiece splinters.
Speed DRO display
1. Speed sensor catching on pulley/at fault.
is incorrect.
2. DRO circuit board wiring broken,
Laser or LED does
1. Lens covered with dust.
not work.
2. Wires disconnected or damaged.
3. Laser/LED ON/OFF switch at fault.
4. Laser/LED damaged/at fault.
5. Circuit board at fault.
Model T31739 (Mfd. Since 11/19)
drilling.
drilling.
speeds.
material.
speed.
surface.
and workpiece.
disconnected, or corroded.
Possible Solution
1. Remove and re-install (Page 24).
2. Clean tool and spindle taper, then re-install.
3. Decrease feed pressure and allow chips to clear.
1. Reduce spindle speed; reduce feed rate.
2. Decrease feed pressure and allow chips to clear.
3. Use right technique, tool, or machine for job.
4. Use coolant or oil for appropriate application (Page
21); reduce cutting speed (Page 22).
5. Retract spindle and raise table to increase rigidity.
1. Retract spindle and raise table to increase rigidity.
2. Tighten table locks (Page 25).
3. Properly clamp workpiece on table or in vise.
4. Reduce spindle speed (Page 22); reduce feed rate.
1. Disengage table locks (Page 25).
2. Clean away chips/debris. Lubricate rack and pinion.
1. Allow drill press to cool. Avoid operating at high
speeds for extended time.
1. Replace/increase return spring tension (Page 35).
2. Clean and lubricate spindle/quill rack.
1. Correctly sharpen drill bit.
2. Correctly install tool/bit/chuck.
1. Properly clamp workpiece.
2. Use appropriate lubrication for application (Page
21).
3. Remove and re-install (Page 24).
4. Adjust spindle speed (Page 22); feed rate.
1. Properly clamp workpiece on table or in vise;
decrease feed speed.
1. Remove chuck, clean, deburr tapered chuck and
spindle mating surfaces, reassemble.
2. Install tool/bit correctly or replace (Page 25).
3. Replace spindle bearings.
1. Calibrate depth stop (Page 32).
1. Install scrap board between table and workpiece.
1. Adjust position/replace if at fault.
2. Fix broken wires or disconnected/corroded wiring
connections (Page 36).
1. Clean lens.
2. Check for proper connections or replace (Page 36).
3. Replace switch.
4. Replace laser/LED (Page 33).
5. Replace circuit board.
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