Section 8: Service; Troubleshooting; Motor & Electrical - Grizzly g0703 Owner's Manual

section 8: 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 possible Cause
Machine does 1. power supply switched oFF or is at fault.
not start or a
breaker trips.
2. Wall fuse/circuit breaker is blown/tripped.
3. handheld remote controller is at fault.
4. remote receiver is at fault.
5. Motor connection wired incorrectly.
6. Machine circuit breaker has tripped.
7. Wiring is open/has high resistance.
8. power switch is at fault.
9. Circuit board is at fault.
10. Motor is at fault.
Machine has 1. Motor or component is loose.
vibration or
noisy operation.
2. Motor mount loose/broken.
3. Motor fan is rubbing on fan cover.
4. Motor bearings are at fault.
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troubleshooting

possible Solution
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 handheld remote controller;
stay in line-of-sight view and signal range.
reprogram remote receiver.
4. inspect receiver circuit board; replace if faulty.
5. Correct motor wiring connections.
6. let motor cool, improve ventilation, press
thermal overload button to reset.
7. Check for broken wires or disconnected/
corroded connections, and repair/replace as
necessary.
8. replace faulty switch.
9. replace circuit board.
10. test/repair/replace.
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.
Model g0703/g0703p (Mfg. Since 3/12)