24
Troubleshooting
Trouble Probable Cause Remedy
Sander will not start.
No incoming power.
Check plug connection. Make sure
fuse is not blown/circuit breaker is not
tripped. Push the circuit breaker
button on the sander motor to re-set.
Switch is malfunctioning. Replace switch.
Conveyor motor
stalls.
Excessive depth of cut.
Reduce depth of cut; use coarser grit;
reduce feed rate.
Conveyor belt does
not move.
Shaft coupler is loose or unattached. Adjust shaft coupler.
Conveyor rollers run
intermittently.
Shaft coupling is loose.
Align the shaft flats of the gear motor
and the drive roller and tighten the
shaft-coupling setscrews.
Abrasive strip comes
off drum.
Slack in abrasive strip on drum. Remove slack in strip.
Abrasive improperly wrapped.
Read the section on installing
abrasives, pages 12-13.
Abrasive strip is
loose.
Strip caught on inside edge of slot, or
on inboard side of drum.
Re-adjust the strip end in the slot
and/or trim the abrasive edge.
Strip not cut properly.
Re-cut and re-install the abrasive
strip.
Abrasive loads up
prematurely.
Excessive depth of cut. Reduce depth of cut.
Excessive feed rate. Reduce feed rate.
Inadequate dust collection. Increase airflow at dust port.
Inadequate abrasive. Use an open-coat abrasive.
Line or groove in
stock.
Inconsistent feed rate.
Do not stop or change the feed rate
while feeding stock.
Snipe marks. Improper tension on rollers. Re-tension rollers (see page 19).
Sander burns wood.
Abrasive strip is overlapped. Re-wrap abrasive strip (page 12-13).
Abrasive is loaded. Clean abrasive.
Depth of cut excessive for fine grit.
Use coarser grit or reduce depth of
cut.
Feed rate too slow. Increase feed rate.
Abrasive is worn. Replace abrasive.
Conveyor belt slips
on drive roller.
Improper conveyor belt tension. Adjust belt tension (page 16).
Excessive depth of cut and/or feed
rate.
Reduce depth of cut and/or feed rate.
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