Troubleshooting - Grizzly G0451 Instruction Manual

Symptom
Motor will not start, or it growls
on start up.
Motor fails to develop full power
(output of motor decreases rap-
idly with decrease in voltage at
motor terminals).
Motor overheats.
Motor stalls (resulting in blown
fuses or tripped circuit).
Main blade runs backwards.
Blade slows when cutting. Blade
makes a squealing noise on start-
up.
g0451 14" sliding table saw

Troubleshooting

possible cause
1. emergency stop button
depressed.
2. power supply fuse or circuit breaker
has tripped.
3. thermal overload has tripped.
4. toggle switch is broken inside.
5. start capacitor is at fault.
6. Motor fan cover is dented, stopping
the fan from being able to spin.
7. Motor is at fault.
1. power line overloaded with lights,
appliances, and other motors.
2. undersized wires or circuits too
long.
3. Blown capacitor.
1. Motor overloaded.
2. Air circulation through the motor
restricted.
1. short circuit in motor or loose con-
nections.
2. low voltage.
3. incorrect fuses or circuit breakers in
power line.
4. Motor overloaded.
1. two of the power wires are
reversed.
1. v-belt loose.
2. v-belt worn out.
disconnect power to the
machine when perform-
ing any troubleshooting.
failure to do this may
result in serious person-
al injury.
possible Solution
is 1. rotate the button clockwise and allow it to pop
out.
2. disconnect power, and inspect circuit for elec-
trical shorts and repair. replace circuit breaker
if it is old or has tripped many times.
3. reset the thermal overload.
4. disconnect power, and use an ohmmeter
to check switch terminals for continuity, and
replace switch if required.
5. replace start capacitor.
6. replace motor fan cover (and fan, if dam-
aged).
7. replace motor.
1. reduce load on power line.
2. increase wire sizes or reduce length of the
circuit.
3. replace the capacitor.
1. reduce load on motor.
2. Clean out motor to provide normal air circula-
tion.
1. repair loose or shorted terminals, or worn
insulation on motor.
2. Correct the low voltage conditions.
3. install correct fuses or circuit breakers.
4. reduce load on motor.
1. exchange wires r & t in the terminal box.
1. tighten v-belt (page 49).
2. replace v-belt (page 49).
-53-