SERVICE

W1747 20" Planer

Troubleshooting

This section covers the most common problems and corrections with this type of

 

machine. WARNING! DO NOT make any adjustments until power is disconnected and

OFF

moving parts have come to a complete stop!

 

Motor & Machine Operation

PROBLEM

 

POSSIBLE CAUSE

 

CORRECTIVE ACTION

Motor will not start.

1.

Emergency stop button depressed.

1.

Rotate clockwise until it pops out/replace.

 

2.

Thermal protection circuit.

2.

Unplug machine, open magnetic switch cover,

 

 

Breaker amperage is set too low.

 

turn amperage dial on Thermal Protection Circuit

 

 

 

 

Breaker to a higher amperage setting.

 

3.

Open circuit in motor or loose

3.

Inspect all lead connections on motor for loose or

 

 

connections.

 

open connections.

 

4.

Start capacitor at fault.

4.

Replace start capacitor.

 

 

 

 

 

Fuses or circuit breakers

1.

Short circuit in line cord or plug.

1.

Repair or replace cord or plug for damaged insula-

blow.

 

 

 

tion and shorted wires.

Motor fails to develop full

1.

Undersized wires or circuits too

1.

Increase wire sizes or reduce length of the circuit.

power (output of motor

 

long.

 

 

decreases rapidly with

2.

Motor run capacitor at fault.

2.

Replace run capacitor.

decrease in voltage at

 

 

 

 

motor terminals).

 

 

 

 

 

 

 

 

 

Motor overheats.

1.

Motor overloaded during opera-

1.

Reduce cutting load; take lighter cuts.

 

 

tion.

 

 

 

2.

Air circulation through the motor

2.

Clean out motor to provide normal air circulation.

 

 

restricted.

 

 

Motor stalls or shuts off

1.

Motor overloaded during opera-

1. Reduce cutting load; take lighter cuts.

during a cut.

 

tion.

 

 

 

2.

Thermal protection circuit.

2.

Unplug machine, open magnetic switch cover,

 

 

Breaker amperage is set too low.

 

turn amperage dial on Thermal Protection Circuit

 

 

 

 

Breaker to a higher amperage setting.

 

3.

Short circuit in motor or loose

3.

Repair or replace connections on motor for loose or

 

 

connections.

 

shorted terminals or worn insulation.

 

4.

Circuit breaker tripped.

4.

Install correct circuit breaker; reduce # of

 

 

 

 

machines running on that circuit.

Cutterhead slows or

1.

V-belt loose.

1.

Tighten V-belt (Page 24).

squeals when cutting,

2.

V-belt worn out.

2.

Replace V-belt (Page 24).

especially on start-up.

 

 

 

 

 

 

 

 

Loud repetitious noise

1.

Pulley setscrews or keys are miss-

1. Inspect keys and setscrews. Replace or tighten if

coming from machine.

 

ing or loose.

 

necessary.

 

2.

Motor fan is hitting the cover.

2.

Adjust fan cover mounting position, tighten fan, or

 

 

 

 

shim fan cover.

 

3.

V-belts are damaged.

3.

Replace V-belts (Page 24).

 

 

 

 

 

Vibration when running or

1.

Loose or damaged knife.

1.

Tighten or replace knife (Page 27).

cutting.

2.

Damaged V-belt.

2.

Replace V-belt (Page 24).

 

3.

Worn cutterhead bearings.

3.

Check/replace cutterhead bearings.

 

 

 

 

 

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Woodstock W1747 owner manual Troubleshooting, Moving parts have come to a complete stop