Grizzly G0703 11 - Manual (Page 28)

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Model g0703 (Mfg. since 8/09)
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 8: SERviCE
Troubleshooting
Motor & Electrical
Symptom possible Cause possible Solution
Machine does not
start or a breaker
trips. 1. power supply switched oFF or is at fault.
2. Wall fuse/circuit breaker is blown/tripped.
3. hand-held remote controller is at fault.
4. receiver is at fault.
5. Motor connection wired incorrectly.
6. thermal overload relay has tripped.
7. Contactor not getting energized/has burnt
contacts.
8. Wiring is open/has high resistance.
9. Motor on button or on/oFF switch is at
fault.
10. Motor is at fault.
1. Ensure power supply is switched on; ensure power
supply has the correct voltage.
2. Ensure circuit size is suitable for this machine; install
inlet restrictor, replace weak breaker.
3. replace batteries in hand-held remote controller;
stay in line-of-sight view and signal range.
4. inspect receiver circuit board; replace if faulty.
5. Correct motor wiring connections.
6. turn cut-out dial to increase working amps and push
the reset pin. reduce work load. replace if tripped
multiple times.
7. test for power on all legs and contactor operation.
replace unit if faulty.
8. Check for broken wires or disconnected/corroded
connections, and repair/replace as necessary.
9. replace faulty on button or on/oFF switch.
10. test/repair/replace.
Machine has
vibration or noisy
operation. 1. Motor or component is loose.
2. Motor mount loose/broken.
3. Motor fan is rubbing on fan cover.
4. Motor bearings are at fault.
1. inspect/replace stripped or damaged bolts/nuts, and
re-tighten with thread locking fluid.
2. tighten/replace.
3. replace dented fan cover; replace loose/damaged
fan.
4. test by rotating shaft; rotational grinding/loose shaft
requires bearing replacement.