Troubleshooting

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.

Symptom

Possible Cause

Possible Solution

 

 

 

 

 

Machine does not

1.

Emergency stop button is engaged.

1.

Disengage emergency stop button.

start or a breaker

2.

Electrical box door switch is OFF.

2.

Turn electrical box door switch ON with the door closed.

trips.

3.

Machine is wired to power source out of

3.

Switch any two current carrying wires at the power source

 

 

phase.

 

connection.

 

4.

Electrical box door is open/door safety

4.

Close door/replace faulty safety switch.

 

 

switch is at fault.

 

 

 

5.

Motor connection wired incorrectly.

5.

Correct motor wiring connections; check power source wire

 

 

 

 

connections to ensure hot lines are "in phase" by reversing

 

 

 

 

any two hot lines.

 

6.

Fuse has blown.

6.

Correct short/replace fuse.

 

7.

Phase reversal relay is at fault.

7.

Replace phase reversal relay.

 

8.

Computer board is at fault.

8.

Inspect computer board; replace if faulty.

 

9.

Thermal overload relay has tripped.

9.

Turn cut-out dial to increase working amps and push the

 

 

 

 

reset pin. Replace if tripped multiple times.

 

10. Contactor not getting energized/has

10. Test for power on all legs and contactor operation. Replace

 

 

burnt contacts.

 

unit if faulty.

 

11. Blown/tripped wall fuse/circuit breaker.

11. Replace weak breaker; ensure correct size circuit.

 

12. Power supply is at fault/switched OFF.

12. Ensure hot lines have correct voltage on all legs and main

 

 

 

 

power supply is switched ON.

 

13. Motor ON switch is at fault.

13. Replace switch.

 

14. Head elevation limit switch depressed;

14. Adjust head height to correct working range; replace faulty

 

 

faulty.

 

limit switch.

 

15. Wiring is open/has high resistance.

15. Check for broken wires or disconnected/corroded connec-

 

 

 

 

tions, and repair/replace as necessary.

 

16. Motor is at fault.

16. Test/repair/replace.

 

 

 

 

 

Machine

1.

Wrong workpiece material (wood).

1.

Use wood with correct moisture content and low resins.

stalls or is

2.

Belt(s) slipping.

2.

Replace bad belt(s), align pulleys, and re-tension.

underpowered.

3.

Motor connection is wired incorrectly.

3.

Correct motor wiring connections.

 

4.

Blade is slipping on wheels.

4.

Adjust blade tracking and tension to factory specs.

 

5.

Motor bearings are at fault.

5.

Test by rotating shaft; rotational grinding/loose shaft requires

 

 

 

 

bearing replacement.

 

6.

Machine is undersized for the task.

6.

Use sharp blade w/lower TPI; reduce the feed rate.

 

7.

Machine is undersized for the task.

7.

Use sharp blade with lower TPI; reduce the feed rate/depth

 

 

 

 

of cut; use cutting fluid if possible.

 

8.

Motor has overheated.

8.

Clean off motor, let cool, and reduce workload.

 

9.

Contactor not getting energized or has

9.

Fix contacts or replace contactor.

 

 

poor contacts.

 

 

 

10. Motor is at fault.

10. Test/repair/replace.

 

11. Start delay module is at fault.

11. Adjust to correct delay; replace module.

 

 

 

 

 

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G0504 16" Horizontal Resaw Bandsaw

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Grizzly G0504 owner manual Troubleshooting, Underpowered