Grizzly 12" Parallelogram Jointer G0609 - Manual (Page 35)

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G0609 12" Parallelogram Jointer
Review the troubleshooting and procedures in this section to fix your machine if a problem develops. If you
need replacement parts or you are unsure of your repair skills, then feel free to call our Technical Support
at (570) 546-9663.
SECTION 7: SERVICE
Troubleshooting
Motor & Electrical
Symptom Possible Cause Possible Solution
Motor will not
start or fuses or
circuit breakers
blow. 1. Power supply circuit breaker is blown/tripped.
2. Plug/receptacle is at fault or wired incorrectly.
3. Start capacitor is at fault.
4. Thermal overload relay has tripped.
5. Motor is at fault.
6. Emergency stop button depressed.
7. Motor ON button is at fault.
8. Open circuit in motor or loose connections.
9. Short circuit in line cord or plug.
10. Circuit not adequate to handle load.
1. Ensure correct size for machine load (refer to Page
10); replace weak breaker.
2. Test for good contacts; correct the wiring.
3. Test/replace if faulty.
4. Unplug machine, open magnetic switch cover, turn
amperage dial on Thermal Protection Circuit Breaker
to a higher amperage setting.
5. Test/repair/replace.
6. Twist the emergency stop button to allow it to pop
out.
7. Replace faulty ON button.
8. Inspect all lead connections on motor for loose or
open connections.
9. Repair or replace cord or plug for damaged insula-
tion and shorted wires.
10. Install correct circuit breaker; reduce # of machines
running on that circuit (circuit overload).
Motor overheats. 1. Motor overloaded during operation.
2. Air circulation through the motor restricted.
1. Reduce load on motor; take lighter cuts.
2. Clean out motor to provide normal air circulation.
Motor stalls or
shuts off during
a cut. 1. Motor overloaded during operation.
2. Thermal overload protection tripped in mag-
netic switch.
3. Short circuit in motor or loose connections.
4. Circuit breaker tripped.
5. Motor is at fault.
1. Reduce load on motor; take lighter cuts.
2. Unplug machine, open magnetic switch cover, turn
amperage dial on Thermal Protection Circuit Breaker
to a higher amperage setting.
3. Repair or replace connections on motor for loose or
shorted terminals or worn insulation.
4. Install correct circuit breaker; reduce # of machines
running on that circuit (circuit overload).
5. Test/repair/replace motor.
Blade slows
when cutting,
makes squealing
noise.
1. V-belt loose.
2. V-belt worn out. 1. Tighten V-belt ( Page 43).
2. Replace V-belt ( Page 43).
Loud repetitious
noise
coming
from machine.
1. Pulley setscrews or keys are missing or
loose.
2. Motor fan is hitting the cover.
3. V-belts are damaged.
1. Inspect keys and setscrews. Replace or tighten if
necessary.
2. Replace dented fan cover; replace loose/damaged
fan.
3. Replace V-belts ( Page 43).
Vibration when
running or cut-
ting. 1. Loose, dull or misajusted blades.
2. Damaged V-belt.
3. Worn cutterhead bearings. 1. Tighten or replace blades.
2. Replace.
3. Check/replace cutterhead bearings.
Table Column Sizes:
Symptom = 1.5"
Possible Cause = 2.48"
Possible Solution = 3.2061"
Table Column Sizes:
Symptom = 1.1"
Possible Cause = 2.88"
Possible Solution = 3.2061"