Grizzly G0458 - Manual (Page 30)

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Model G0458 (Mfg. Since 5/11)
section 7: service
troubleshooting
motor & electrical
Symptom possible Cause possible Solution
machine does not start or
a breaker trips. 1. plug/receptacle is faulty or wired incorrectly.
2. Start capacitor is faulty.
3. motor connection is wired incorrectly.
4. power supply is faulty, or is switched oFF.
5. Safety switch key is at fault.
6. motor on/oFF switch is faulty.
7. Centrifugal switch is at fault.
8. Cable or wiring is open or has high
resistance.
9. motor is at fault.
1. test power plug and receptacle for good
contact and correct wiring.
2. test capacitor and replace if necessary.
3. Correct motor wiring (see
page 38).
4. make sure hot lines and grounds are
operational and have correct voltage on all
legs.
5. install or replace safety key, or replace
switch assembly.
6. replace faulty on/oFF switch.
7. Adjust or replace the centrifugal switch.
8. Check for disconnected or corroded
connections, troubleshoot wires for internal
or external breaks, then repair or replace
wiring.
9. test, then repair or replace motor.
machine stalls or is
underpowered.
1. Wrong workpiece material.
2. low power supply voltage.
3. run capacitor is faulty.
4. Filter bags are at fault.
5. V-belts are slipping.
6. plug or receptacle is at fault.
7. motor connection is wired incorrectly.
8. motor bearings are at fault.
9. machine is overloaded.
10. motor has overheated.
11. Centrifugal switch is at fault.
12. motor is at fault.
1. only process wood with correct moisture
content, and no glues, or resins.
2. make sure hot lines and grounds are
operational and have correct voltage on all
legs.
3. test capacitor and replace if necessary.
4. Empty and clean filter bag.
5. replace bad belts, align pulleys, and
re-tension the V-belts (see pages 27 & 30).
6. test power plug and receptacle for good
contact and correct wiring.
7. Correct motor wiring (see page 38).
8. rotate motor shaft for noisy or burnt
bearings, repair/replace as required.
9. Use new sandpaper with appropriate grit,
and reduce the feed rate/depth of sanding.
10. Check motor cooling air flow, let motor cool,
and reduce workload on machine.
11. Adjust/replace the centrifugal switch.
12. test motor, and repair/replace if necessary.
Review the troubleshooting and procedures in this section if a problem develops with your machine. If you
need replacement parts or additional help with a procedure, call our Technical Support at (570) 546-9663.
Note: Please gather the serial number and manufacture date of your machine before calling.