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11.0 Troubleshooting the 1632 Sander
Symptom Possible Cause Correction
Motor will not start Low voltage. Check power line for proper voltage.
Open circuit in motor or loose
connection.
Inspect all lead connections on motor for
loose or open connections.
Motor will not start: fuses
or circuit breakers blow.
Short circuit in line cord or plug. Inspect cord or plug for damaged insulation
and shorted wires.
Short circuit in motor or loose
connections.
Inspect all connections on motor for loose or
shorted terminals or worn insulation.
Incorrect fuses or circuit breakers in
power line.
Install correct fuses or circuit breakers.
The sanding belt clogs
quickly.
Sandpaper grit too small. Use larger grit.
Too much material is being sanded off. Reduce sanding depth.
The wood is too dirty or oily. Use dry stock.
Suction is insufficient. Increase suction.
Edges round when
sanding.
Too much material being removed. Reduce sanding depth.
The thickness differs on
left and right sides of
workpiece.
Conveyor table not parallel to contact
roller or platen.
Adjust table to parallel.
Worn out felt and graphite on platen
head
Replace felt/graphite.
The thickness differs on
front and back sides of
workpiece.
Feed speed too fast. Reduce speed.
Too much material is being removed. Reduce sanding depth.
Sandpaper grit too fine. Use coarser grit
Pressure plate not level Adjust plate to level.
Workpiece slips on
conveyor belt.
Too much or too little pressure from
pressure plate.
Adjust to proper pressure.
Sanding belt clogged with dust.
Blowoutdustwithhigh‐pressureair.
Belt worn out. Replace belt.
Straight notch grooves
on workpiece.
Dirty pressure roller. Clean pressure roller.
Rubber roller scratched. Replace rubber roller.
Worn out lining and graphite on platen
head.
Replace lining/graphite.
Snake marks on
workpiece.
Sanding belt partially damaged. Repair or replace sanding belt.
Sanding grit loose. Replace sanding belt.
Belt slips out of track. Tracking air valve is clogged or not
open enough.
Clean/enlarge valve opening.
Straight parallel stripes
across the workpiece.
Sanding belt joint is too thick. Replace sanding belt
Sanding belt is worn. Replace sanding belt.
12.0 Replacement Parts
Replacement parts are listed on the following pages. To order parts or reach our service department, call 1-
800-274-6848 Monday through Friday (see our website for business hours, www.powermatic.com). Having the
Model Number and Serial Number of your machine available when you call will allow us to serve you quickly
and accurately.