Grizzly G1021x owner manual Troubleshooting Guide, Motor & Machine Operation

Symptom

Possible Cause

Possible Solution

Motor will not start.

1.

Thermal overload relay inside mag-

1.

Press the RESET button on the thermal

netic switch has tripped.

overload relay; investigate reason it tripped

to prevent future problems.

2.

Low voltage.

2.

Check power line for proper voltage.

3.

Open circuit in motor or loose connec-

3.

Inspect all lead connections on motor for

tions.

loose or open connections.

Fuses or circuit breakers blow.

1.

Short circuit in line cord or plug.

1.

Repair or replace cord or plug for damaged

insulation and shorted wires.

Motor fails to develop full power

1.

Power line overloaded with lights,

1.

Reduce load on power line.

(output of motor decreases rapidly

appliances, and other motors.

with decrease in voltage at motor

2.

Undersized wires or circuits too long.

2.

Increase wire sizes or reduce length of the

terminals).

circuit.

3.

Motor run capacitor at fault.

3.

Replace run capacitor.

Motor overheats.

1.

Motor overloaded during operation.

1.

Reduce cutting load; take lighter cuts.

2.

Air circulation through the motor

2.

Clean out motor to provide normal air circu-

restricted.

lation.

Motor stalls or shuts off during a

1.

Motor overloaded during operation.

1.

Reduce cutting load; take lighter cuts.

cut.

2.

Thermal overload protection tripped

2.

Press the RESET button on the thermal

in magnetic switch.

overload relay, located inside the magnetic

switch.

3.

Short circuit in motor or loose connec-

3.

Repair or replace connections on motor for

tions.

loose or shorted terminals or worn insula-

tion.

4.

Circuit breaker tripped.

4.

Install correct circuit breaker; reduce # of

machines running on that circuit.

Cutterhead slows or squeals when

1.

V-belt(s) loose.

1.

Tighten V-belts (Page 22).

cutting, especially on start-up.

2.

V-belt(s) worn out.

2.

Replace V-belt(s) (Page 22).

Loud repetitious noise coming from

1.

Pulley set screws or keys are missing

1.

Inspect keys and set screws. Replace or

machine.

or loose.

tighten if necessary.

2.

Motor fan is hitting the cover.

2.

Adjust fan cover mounting position, tighten

fan, or shim fan cover.

3.

V-belt(s) damaged.

3.

Replace V-belts (Page 22).

Vibration when running or cutting.

1.

Loose or damaged blade.

1.

Tighten or replace blade.

2.

Damaged V-belt(s).

2.

Replace V-belt(s).

3.

Worn cutterhead bearings.

3.

Check/replace cutterhead bearings.

Symptom

Possible Cause

Possible Solution

Table is hard to adjust.

1.

Table lock is engaged or partially

1.

Completely loosen the table lock.

engaged.

2.

Drive chain is dirty.

2.

Clean and lubricate the drive chain (see

Page 22 and Page 25).

-32-

G1021X 15" Extreme Series Planer