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Motor & Electrical (Cont.)
Symptom
Possible Cause
LED does not
1. Lens covered with dust.
illuminate.
2. Wiring broken, disconnected, or corroded.
3. LED or LED driver damaged/at fault.
4. LED switch at fault.
Laser guide
1. Lens covered with dust.
does not
2. Wiring broken, disconnected, or corroded.
illuminate.
3. Laser module(s) damaged/at fault.
4. Laser switch at fault.
5. Laser LED driver at fault.
Operation
Symptom
Possible Cause
Tool falls out or
1. Chuck jaws loose.
loose in chuck.
2. Excessive feed pressure.
Chuck and
1. Debris on chuck, arbor, or in spindle taper.
arbor fall out
or loose in
2. Excessive feed pressure.
spindle.
Breaking tools
1. Spindle speed/feed rate too fast.
or cutters.
2. Taking too big of cut at one time.
3. Improper cutting technique or type of cut for
tool/machine.
4. Cutting tool too small.
5. Cutting tool getting too hot.
6. Spindle extended too far down during or at
beginning of operation.
Workpiece or
1. Spindle extended too far down during or at
tool vibrates or
beginning of operation.
chatters during
2. Table lock handles not tight.
operation.
3. Workpiece not secure.
4. Spindle speed/feed rate too fast.
5. Quill shaft lock screw not adjusted correctly.
Table hard to
1. Table locked.
move.
2. Dirty or dry rack and pinion.
Bad surface
1. Spindle speed/feed rate too fast.
finish.
2. Dull or incorrect cutting tool/bit.
3. Workpiece not secure.
4. Spindle extended too far down during or at
beginning of operation.
Spindle
1. Machine operated at high speeds for
overheats.
extended period.
Spindle does
1. Poorly adjusted return spring.
not fully retract.
2. Debris on spindle/quill rack.
3. Worn return spring.
-36-
Possible Solution
1. Clean lens.
2. Fix broken wires or disconnected/corroded
connections (Page 43).
3. Replace LED and driver assembly (Page 41).
4. Replace switch.
1. Clean lens.
2. Fix broken wires or disconnected/corroded
connections (Page 43).
3. Replace laser module(s) (Page 41).
4. Replace switch.
5. Replace laser LED driver.
Possible Solution
1. Tighten chuck jaws.
2. Decrease feed pressure and allow chips to clear.
1. Clean chuck, arbor, and spindle taper, then re-install
(Page 25).
2. Decrease feed pressure and allow chips to clear.
1. Reduce spindle speed (Page 28); reduce feed rate.
2. Decrease feed pressure and allow chips to clear.
3. Use right technique, tool, or machine for job.
4. Use larger cutting tool and slower feed rate.
5. Use coolant or oil for appropriate application; reduce
cutting speed (Page 28).
6. Fully retract spindle and raise table to increase rigidity.
1. Fully retract spindle and raise table to increase rigidity.
2. Tighten table lock handles (Page 30).
3. Properly clamp workpiece on table or in vise.
4. Reduce spindle speed (Page 28); reduce feed rate.
5. Adjust quill shaft lock screw (Page 42).
1. Disengage table locks (Page 30).
2. Clean away chips/debris. Lubricate rack and pinion
(Page 34).
1. Reduce spindle speed (Page 28); reduce feed rate.
2. Sharpen cutting tool or select one that better suits
operation.
3. Properly clamp workpiece on table or in vise.
4. Fully retract spindle and raise table to increase rigidity.
1. Allow drill to cool.
1. Increase return spring tension (Page 38).
2. Clean and lubricate spindle/quill rack (Page 34).
3. Replace return spring.
Model T33901/T33902 (Mfd. Since 07/23)
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