Troubleshooting The Pm2244 Drum Sander - Powermatic PM2244 Operating Instructions Manual

13.0 Troubleshooting the PM2244 Drum Sander

Symptom
Drum motor won't start
when ON button is
pushed.
Motor will not start:
fuses blow or circuit
breakers trip.
Motor overheats.
Motor stalls, resulting in
blown fuses or tripped
circuit.
Loud, repetitive noise or
vibration coming from
machine.
Conveyor motor will not
run.
Drum motor shuts off
when finger leaves
drum motor on/off
switch.
* WARNING: Some corrections may require a qualified electrician.
Possible Cause
No incoming current.
Safety key missing from switch.
E-stop still engaged (racetrack is
flashing).
Conveyor speed dial not reset after
using E-stop (racetrack is flashing).
Low voltage.
Open circuit in motor or loose
connection.
Short circuit in line cord or plug.
Short circuit in motor or loose
connections.
Incorrect fuse or circuit breaker in
power line.
Air circulation through motor restricted. Clean motor fan with compressed air to
Motor overloaded (Feed Logic not
functioning properly.
Short circuit in motor or loose
connections.
Low voltage.
Incorrect fuse or circuit breaker in
power line.
Fasteners loose.
Motor fan is hitting cover.
Machine not level.
Conveyor speed dial not reset after
using E-stop.
Not pressing drum motor switch long
enough.
Conveyor speed dial not reset after
using E-stop or switching off main
switch.
Table 2
Correction *
Check connections at plug or circuit panel.
Install safety key.
Disengage E-stop by rotating clockwise.
Turn speed dial to OFF position, then try
starting machine.
Check power line for proper voltage.
Inspect all lead connections on motor for
loose or open connections.
Inspect cord or plug for damaged insulation
and shorted wires.
Inspect all connections on motor for loose
or shorted terminals or worn insulation.
Install correct fuse or circuit breaker.
restore normal air circulation.
Have controls inspected and repaired.
Inspect connections on motor for loose or
shorted terminals or worn insulation.
Correct low voltage conditions.
Install correct fuse or circuit breaker.
Inspect fasteners and tighten where
needed.
Tighten fan or shim fan cover.
Place sander on level floor; shim if needed.
Turn speed dial to OFF position, then try
starting machine.
Press and hold for at least 1 second.
Turn speed dial to OFF position, then try
starting machine.
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