Troubleshooting, Motor & electrical – Grizzly G0640X User Manual

Page 46

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-44-

G0640X 17" Wood/Metal Bandsaw

Review the troubleshooting and procedures in this section to fix or adjust your machine if a problem devel-
ops. 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 9: SERVICE

Troubleshooting

Motor & Electrical

Symptom

Possible Cause

Possible Solution

Machine does not
start or a breaker
trips.

1. Key switch is turned off.
2. Plug/receptacle is at fault or wired incorrectly.
3. Motor connection wired incorrectly.
4. Wall fuse/circuit breaker is blown/tripped.

5. Power supply switched OFF or is at fault.

6. Wiring is open/has high resistance.

7. Motor START/STOP button or ON/OFF switch

is at fault.

8. Inverter/Controller box is at fault.
9. Motor is at fault.

1. Turn key switch on.
2. Test for good contacts; correct the wiring.
3. Correct motor wiring connections.
4. Ensure circuit size is suitable for this machine;

replace weak breaker.

5. Ensure power supply is switched on; ensure power

supply has the correct voltage.

6. Check for broken wires or disconnected/corroded

connections, and repair/replace as necessary.

7. Replace faulty START/STOP button or ON/OFF

switch.

8. Inspect inverter/controller box; replace if faulty.
9. Test/repair/replace.

Machine stalls or
bogs down while
cutting.

1. Feed rate/cutting speed too fast for task.
2. Machine is undersized for the task.

3. Blade is slipping on wheels.

4. Motor connection is wired incorrectly.
5. Plug/receptacle is at fault.
6. Pulley/sprocket slipping on shaft.
7. Motor is at fault.

1. Decrease feed rate/cutting speed.
2. Use sharp blade with lower TPI; reduce the feed

rate/depth of cut.

3. Adjust blade tracking and tension to factory specifi-

cations; redress tires as stated on

Page 43.

4. Correct motor wiring connections.
5. Test for good contacts; correct the wiring.
6. Replace loose pulley/shaft.
7. Test/repair/replace.

Machine

has

vibration or noisy
operation.

1. Motor or component is loose.

2. Blade weld is at fault or teeth are broken.
3. Blade is at fault.

4. V-belt worn or loose.
5. Pulley is loose.

6. Motor mount loose/broken.
7. Machine is incorrectly mounted or sits uneven-

ly.

8. Motor fan is rubbing on fan cover.

9. Motor bearings are at fault.

1. Inspect/replace stripped or damaged bolts/nuts, and

re-tighten with thread locking fluid.

2. Replace blade.
3. Replace warped, bent, or twisted blade; resharpen

dull blade.

4. Inspect/replace belt.
5. Realign/replace shaft, pulley, setscrew, and key as

required.

6. Tighten/replace.
7. Tighten/replace anchor studs in floor; relocate/shim

machine.

8. Replace dented fan cover; replace loose/damaged

fan.

9. Test by rotating shaft; rotational grinding/loose shaft

requires bearing replacement.

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