Troubleshooting Pm3000B Cabinet Saw; Motor And Electrical Problems; Mechanical And Operational Problems - Powermatic PM3000B Operating Instructions And Parts Manual

13.0 Troubleshooting PM3000B Cabinet Saw

13.1 Motor and electrical problems

Symptom
Saw will not start.
Saw will not start: fuse
blows or breaker trips.
Motor starts slowly or
fails to reach full speed.
Motor overheats.
Motor stalls, resulting in
blown fuses or tripped
breaker.

13.2 Mechanical and operational problems

Motor stalls or workpiece
binds or burns.
Machine slows or stalls
when operating.
Probable Cause
No incoming power.
Safety key removed from switch.
Low voltage.
Open circuit in motor or loose
connection.
Power cord damaged.
Short circuit in line cord or plug.
Short circuit in motor or loose
connections.
Incorrect fuses or circuit breakers in
power line.
Low voltage.
Power line overloaded.
Undersized wires in supply system.
Centrifugal switch not engaging.
Motor malfunction.
Motor overloaded.
Improper cooling of motor; lack of air
circulation.
Motor overloaded.
Short circuit in motor or loose
connections.
Low voltage.
Incorrect fuses or circuit breakers in
power line.
Excessive feed.
Dull or incorrect blade.
Miter slot misaligned.
Fence misaligned.
Motor malfunction.
Applying too much pressure to
workpiece.
Poly-v drive belt is loose.
Remedy
Check plug connection.
Install safety key.
Check power line for proper voltage.
Inspect all connections on motor for loose or
open connections.
Replace cord.
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 fuses or circuit breakers.
Request voltage check from power company
and correct low voltage condition.
Correct overload condition. Use dedicated
circuit for table saw.
Increase supply wire size.
Replace centrifugal switch (qualified
personnel only).
Have motor checked by a qualified
inspector. Repair or replace.
Reduce load on motor.
Clean sawdust from fan and duct areas of
motor.
Reduce load on motor.
Inspect connections on motor for loose or
shorted terminals or worn insulation.
Correct low voltage conditions.
Install correct fuses or circuit breakers.
Table 3
Reduce feed.
Replace blade; use proper type of blade for
cut needed.
Realign table to blade.
Realign fence (see Accu-Fence manual).
Have motor checked by a qualified
inspector. Repair or replace.
Feed workpiece more slowly.
Tighten belt.
26