Powermatic 1791291K - Manual (Page 21)

21
Troubleshooting
Trouble Probable Cause Remedy
Sander will not start.
Disconnected from power source. Check connection to source.
Incorrect voltage.
Make sure power source matches
voltage of sander, as shown on motor
name plate.
Switch is not activating. Repair or replace switch.
Motor is faulty. Repair or replace motor.
Abrasive belt won’t
track properly.
Platen is shifted or worn.
Raise platen to 1/32” beyond the apex
of the drum. See page 15.
Belt is stretched unevenly. Replace belt.
Drum is worn. Replace drum.
Abrasive disc comes
free of aluminum
disc.
Improper bond.
Clean adhesive off aluminum disc,
then re-apply adhesive and re-mount
abrasive disc.
Abrasive belt slips or
stalls on application
of pressure.
Abrasive belt tension is inadequate. Tighten abrasive belt (page 11).
Excessive pressure. Reduce pressure against belt.
Drive belt is loose. Properly tension drive belt (page 10).
Aluminum disc stalls.
Drive belt is loose. Properly tension drive belt (page 10).
Disc shaft key is missing. Replace key.
Excessive abrasive
belt replacement.
Using too much pressure when
sanding.
Reduce pressure against belt.
Not using full width of belt.
Stroke across full width of belt to
disperse wear.
Belt arm won’t index.
Index pin is stuck. Remove arm and free index pin.
Broken spring. Remove arm and replace spring.
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.