33

This section covers the most common planer problems. DO NOT make any adjustments until the planer is

unplugged and moving parts have come to a complete stop. For troubleshooting planing results go to Page 29.

Troubleshooting Machine Operation
SYMPTOM
Motor will not start.
Fuses or circuit breakers
trip open.
Motor overheats.
Motor automatically shuts
off (possibly resulting in
blown fuse or tripped
circuit breaker in planer
magnetic switch box, or in
power supply circuit).
Machine slows greatly
when planing.
Loud, repetitious noise
coming from machine.
Machine is loud when
cutting. Overheats or bogs
down in the cut.
Infeed roller marks are left
on the workpiece.
Outfeed roller marks are
left on right side of
workpiece.
Chip buildup on outfeed
roller.
Machine howls on startup.
Cutterhead casting moves
down while cutting.
POSSIBLE CAUSE
1. Low voltage.
2. Open circuit in motor or loose
connections.
3. Faulty start capacitor.
1. Short circuit in line cord or
plug.
2. Short circuit in motor or loose
connections.
3. Incorrect fuses or circuit
breakers in power supply.
1. Motor overloaded.
2. Air circulation through the
motor restricted.
1. Thermal Protection Circuit.
Breaker amperage is set too
low.
2. Short circuit in motor or loose.
connections.
3. Low power supply voltage.
4. Incorrect fuses/circuit breakers.
1. Feed rate too high.
2. Depth of cut too great.
1. Pulley setscrews or keys are
missing or loose.
2. Motor fan is hitting the cover.
3. V-belt is defective.
1. Excessive depth of cut.
2. Knives are dull.
1. Depth of cut too shallow.
1. Too much spring tension on
feed roller.
1. Chips working their way back
under the chip deflector.
1. Chip deflector too close to the
cutterhead.
1. Cutterhead is loose on columns.
Knives dull.
CORRECTIVE ACTION
1. Check power supply for proper voltage.
2. Inspect all lead connections on motor and magnetic switch for
loose or open connections.
3. Replace start capacitor with 600MFD 125VAC unit.
1. Inspect cord or plug for damaged insulation and shorted wires
and replace extension cord.
2. Inspect all connections on motor for loose or shorted
terminals or worn insulation.
3. Install correct fuses or circuit breakers.
1. Reduce load on motor.
2. Clean out motor to provide normal air circulation.
1. Unplug machine, open magnetic switch cover, turn amperage
dial on Thermal Protection Circuit Breaker to a higher amperage
setting.
2. Inspect connections on motor for loose or shorted terminals or
worn insulation.
3. Correct the low voltage condition with a qualified electrician.
4. Install correct fuses or circuit breakers.
1. Feed workpiece slower.
2. Reduce depth of cut.
1. Inspect keys and setscrews. Replace or tighten if necessary.
2. Tighten fan or shim cover, or replace items.
3. Replace V-belt and adjust belt tension correctly.
1. Decrease depth of cut.
2. Sharpen knives.
1. Increase depth of cut.
1. Refer to Adjustments, Spring Tension.
1. Lay duct tape over the mounting bolts along the outside edge
to seal any possible gaps.
1. Move back 1/8" to 1/4" from the cutterhead.
1. Lock down cutterhead casting lock knobs before planing.
Replace knives.
MAINTENANCE