TROUBLESHOOTING

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

SYMPTOM

 

 

 

 

 

POSSIBLE CAUSE

 

 

CORRECTIVE ACTION

 

 

 

 

Motor will not start.

 

 

1.

Low voltage.

 

 

 

 

1.

Check power line for proper voltage.

 

 

 

 

 

 

 

 

 

 

 

2.

Open circuit in motor or

 

 

2.

Inspect all lead connections on motor for

 

 

 

 

 

 

 

 

 

 

 

 

loose connections.

 

 

 

loose or open connections.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Motor

will

not

start;

 

 

1.

Short circuit in line cord

 

 

1.

Inspect cord or plug for damaged insulation

 

 

 

 

fuses or circuit break-

 

 

 

or plug.

 

 

 

 

 

 

and shorted wires.

 

 

 

 

ers blow.

 

 

 

 

 

2.

Short circuit in motor or

 

 

2.

Inspect all connections on motor for loose

 

 

 

 

 

 

 

 

 

 

 

 

loose connections.

 

 

 

or shorted terminals or worn insulation.

 

 

 

 

 

 

 

 

 

 

 

3.

Incorrect

fuses or circuit

 

 

3.

Install correct fuses or circuit breakers.

 

 

 

 

 

 

 

 

 

 

 

 

breakers in power line.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Motor fails to develop

 

 

1.

Power

line

overloaded

 

 

1.

Reduce load on power line.

 

 

 

 

full power (power out-

 

 

 

with

lights,

appliances,

 

 

 

 

 

 

 

 

put of motor decreas-

 

 

 

and other motors.

 

 

 

 

 

 

 

 

es

rapidly

with

 

 

2.

Undersized wires or cir-

 

 

2.

Increase wire sizes or reduce length of

 

 

 

 

decrease in voltage at

 

 

 

cuits too long.

 

 

 

wire.

 

 

 

 

motor terminals).

 

 

 

3.

General

overloading of

 

 

3.

Request a power check from the power

 

 

 

 

 

 

 

 

 

 

 

 

power

company facili-

 

 

 

company.

 

 

 

 

 

 

 

 

 

 

 

 

ties.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Motor overheats.

 

 

 

1.

Motor overloaded.

 

 

1.

Reduce load on motor.

 

 

 

 

 

 

 

 

 

 

 

2.

Air circulation through the

 

 

2.

Clean out motor to provide normal air circu-

 

 

 

 

 

 

 

 

 

 

 

 

motor restricted.

 

 

 

lation.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Motor stalls (resulting

 

 

1.

Short circuit in motor or

 

 

1.

Inspect connections on motor for loose or

 

 

 

 

in blown

fuses

or

 

 

 

loose connections.

 

 

 

shorted terminals or worn insulation.

 

 

 

 

tripped circuit).

 

 

 

 

2.

Low voltage.

 

 

 

 

2

Correct the low voltage conditions.

 

 

 

 

 

 

 

 

 

 

 

3.

Incorrect

fuses or circuit

 

 

3.

Install correct fuses or circuit breakers.

 

 

 

 

 

 

 

 

 

 

 

 

breakers in power line.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

4.

Motor overloaded.

 

 

4.

Reduce load on motor.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Machine slows down

 

 

 

Applying too much pres-

 

 

 

Feed workpiece slower.

 

 

 

 

when operating.

 

 

 

 

 

sure to workpiece.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Sanded surface

not

 

 

1.

Table

not perpendicular

 

 

1.

Adjust table tilt.

 

 

 

 

square.

 

 

 

 

 

 

to disc.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

2.

Miter gauge not square to

 

 

2.

Adjust miter gauge.

 

 

 

 

 

 

 

 

 

 

 

 

disc.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

G8793 12" Double Disc Sander

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Grizzly G8793 instruction manual Troubleshooting, Symptom Possible Cause Corrective Action