Section 7: Service; Troubleshooting - Grizzly G0664 Owner's Manual

Heavy duty metal cutting bandsaw w/rollers
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service

SECTION 7: SERVICE

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.
Motor & Electrical
SYMpTOM
Machine does not start or a
breaker trips.
Machine stalls or is over-
loaded
Machine has vibration or
noisy operation.
g0664 heavy duty Metal-Cutting Bandsaw

Troubleshooting

pOSSIBLE CAUSE
1. safety stop button pressed.
2. Machine is wired out of phase (only
if this is the first time the machine is
run).
3. Wall fuse/circuit breaker is blown/
tripped.
4. Wiring is open/has high resistance.
5. plug/receptacle is at fault or wired
incorrectly.
6. Motor connection wired incorrectly.
7. power supply is at fault/switched
OFF.
8. Motor on/oFF switch is at fault.
9. Motor is at fault.
1. Wrong blade for the workpiece
material.
2. Wrong workpiece material.
3. Feed rate/cutting speed too fast for
task.
4. Blade is slipping on wheels.
5. incorrect power supply voltage.
6. Motor bearings are at fault.
7. plug/receptacle is at fault.
8. Motor connection is wired incor-
rectly.
9. Motor has overheated.
10. Motor is at fault.
1. Motor fan is rubbing on fan cover.
2. Blade is at fault.
3. Worm gear is at fault.
4. Wrong blade for material.
5. speed is set too slow.
CORRECTIVE ACTION
1. twist safety stop button until it pops out.
2. ensure correct size for machine load;
replace weak breaker.
3. Check for broken wires or disconnected/corroded
connections, and repair/replace as necessary.
4. test for good contacts; correct the wiring.
5. Correct wiring.
6. Correct motor wiring connections.
7. ensure hot lines have correct voltage on all legs and
main power supply is switched ON.
8. replace faulty on/oFF switch.
9. test/repair/replace.
1. use blade with correct properties for your type of cut-
ting.
2. use metal with correct properties for your type of cut-
ting.
3. decrease feed rate/cutting speed.
4. adjust blade guides and tension.
5. ensure hot lines have correct voltage on all legs.
6. test by rotating shaft; rotational grinding/loose shaft
requires bearing replacement.
7. test for good contacts; correct the wiring.
8. Correct motor wiring connections.
9. Clean off motor, let cool, and reduce workload.
10. test/repair/replace.
1. replace dented fan cover; replace loose/damaged
fan.
2. replace/resharpen blade.
3. rebuild gearbox for bad gear(s)/bearing(s).
4. Change blade.
5. adjust speed as required.
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