Grizzly G0664 Manuale Utente
g0664 heavy duty Metal-Cutting Bandsaw
-43-
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.
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 7: SERVICE
Troubleshooting
Motor & Electrical
SYMpTOM
pOSSIBLE CAUSE
CORRECTIVE ACTION
Machine does not start or a
breaker trips.
breaker trips.
1. safety stop button pressed.
2. Machine is wired out of phase (only
2. Machine is wired out of phase (only
if this is the first time the machine is
run).
run).
3. Wall fuse/circuit breaker is blown/
tripped.
4. Wiring is open/has high resistance.
5. plug/receptacle is at fault or wired
5. plug/receptacle is at fault or wired
incorrectly.
6. Motor connection wired incorrectly.
7. power supply is at fault/switched
7. power supply is at fault/switched
OFF.
8. Motor on/oFF switch is at fault.
9. Motor is at fault.
9. Motor is at fault.
1. twist safety stop button until it pops out.
2. ensure correct size for machine load;
replace weak breaker.
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.
5. Correct wiring.
6. Correct motor wiring connections.
7. ensure hot lines have correct voltage on all legs and
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.
9. test/repair/replace.
Machine stalls or is over-
loaded
loaded
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.
5. incorrect power supply voltage.
6. Motor bearings are at fault.
7. plug/receptacle is at fault.
8. Motor connection is wired incor-
8. Motor connection is wired incor-
rectly.
9. Motor has overheated.
10. Motor is at fault.
10. Motor is at fault.
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
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.
8. Correct motor wiring connections.
9. Clean off motor, let cool, and reduce workload.
10. test/repair/replace.
10. test/repair/replace.
Machine has vibration or
noisy operation.
noisy operation.
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.
3. Worm gear is at fault.
4. Wrong blade for material.
5. speed is set too slow.
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.
3. rebuild gearbox for bad gear(s)/bearing(s).
4. Change blade.
5. adjust speed as required.
service