Trouble-Shooting:mechanical & Electrical Problems - Powermatic 15S Owner's Manual

TROUBLE-SHOOTING: Mechanical & Electrical Problems (15S Planer)
PROBLEM
Uneven depth of cut
side to side.
Board thickness
does not match depth
of cut scale.
Chain jumping.
Machine will not start/
restart or repeatedly
trips circuit breaker or
blows fuses.
POSSIBLE CAUSE
1. Knife projection.
2. Cutterhead not level with bed.
1. Depth of cut scale incorrect.
1. Inadequate tension.
2. Sprockets misaligned.
3. Sprockets worn.
1. No incoming power.
2. Overload automatic reset has
not reset.
3. Planer frequently trips.
4. Building circuit breaker trips or
fuse blows
5. Loose electrical connections.
6. Motor starter failure.
SOLUTION
1. Adjust knife projection.
2. Level bed.
1. Adjust depth of cut scale.
1. Adjust chain tension.
2. Align sprockets.
3. Replace sprockets.
1. Verify unit is connected to power.
2. When planer overloads on the circuit
breaker built into the motor starter, it
takes time for the machine to cool down
before restart. Allow unit to adequately
cool before attempting restart. If
problem persists, check amp setting on
the motor starter inside the electrical
box.
3. One cause of overloading trips which are
not electrical in nature is too heavy a cut.
The solution is to take a lighter cut. If too
deep a cut is not the problem, then
check the amp setting on the overload
relay. Match the full load amps on the
motor as noted on the motor plate.
If amp setting is correct then there is
probably a loose electrical lead.
Check amp setting on motor starter.
4. Verify that planer is on a circuit of
correct size. If circuit size is correct,
there is probably a loose electrical lead.
Check amp settting on motor starter.
5. Go through all the electrical connections
on the planer including motor
connections, verifying the tightness of
each. Look for any signs of electrical
arcing which is a sure indicator of loose
connections or circuit overload.
6. Examine motor starter for burned or
failed components. If damage is found,
replace motor starter. If motor starter
looks okay but is still suspect, you have
two options: have a qualified electrician
test the motor starter for function, or
purchase a new starter and establish if
that was the problem on changeout.