Grizzly G0442 - Manual (Page 49)

Model g0442/g0601 (Mfg since 3/12)
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review the troubleshooting and procedures in this section to fix or adjust the 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
symptom possible Cause possible solution
Machine does
not start or a
breaker trips. 1. Wall fuse/circuit breaker is blown/tripped.
2. power supply switched oFF or is at fault.
3. Fuse has blown.
4. hand-held remote controller is at fault.
5. (g0442) start capacitor at fault.
6. receiver is at fault.
7. Motor connection wired incorrectly.
8. thermal overload relay has tripped.
9. Contactor not getting energized/has
burnt contacts.
10. Wiring is open/has high resistance.
11. Motor start switch or on/oFF button is
at fault.
12. Circuit board is at fault.
13. Motor is at fault.
1. ensure circuit size is suitable for this machine;
replace weak breaker.
2. ensure power supply is switched on; ensure
power supply has the correct voltage.
3. Correct short/replace fuse in control box.
4. replace batteries in hand-held remote
controller; stay in line-of-sight view and signal
range.
5. replace start capacitor.
6. inspect receiver computer board; replace if faulty.
7. Correct motor wiring connections (
pages 50 & 51).
8. turn cut-out dial to increase working amps and
push the reset pin. replace if tripped multiple
times (weak relay).
9. test for power on all legs and contactor
operation. replace unit if faulty.
10. Check for broken wires or disconnected/
corroded connections, and repair/replace as
necessary.
11. replace faulty on button or on/oFF switch.
12. inspect circuit board; replace if faulty.
13. test/repair/replace.
Machine has
vibration or
noisy operation. 1. Motor or component is loose.
2. Machine is incorrectly mounted or sits
unevenly.
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 anchor studs in floor; relocate/
shim machine.
3. replace dented fan cover; replace loose/
damaged fan.
4. test by rotating shaft; rotational grinding/loose
shaft requires bearing replacement.