Grizzly G0705 - Manual (Page 43)

Model G0705 (Mfg. since 09/09)
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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 7: service
troubleshooting
symptom possible Cause possible solution
Machine does not
start. 1. Wall fuse/circuit breaker is blown/tripped.
2. plug at fault or wired incorrectly.
3. Motor wired incorrectly.
4. Wiring is open/has high resistance.
5. Machine power switch is at fault.
6. Motor is at fault.
1. ensure circuit size is correct and a short does not
exist. reset breaker or replace fuse.
2. ensure plug is not damaged and is wired correctly.
3. ensure motor wiring is correct.
4. Check for broken wires or disconnected/corroded
connections; repair/replace as necessary.
5. ensure switch is wired correctly; replace if at fault.
6. test/repair/replace.
Machine stalls or is
overloaded. 1. Feed rate too fast/cutting speed too slow.
2. Wrong cutter type.
3. Machine is undersized for the task or
tooling is incorrect for the task.
4. Motor connection is wired incorrectly.
5. Motor has overheated.
6. Motor bearings are at fault.
t7. Motor is at fault.
1. adjust feed rate/cutting speed.
2. use the correct cutter for the task.
3. use smaller or sharper tooling; reduce feed rate or
spindle speed; use cutting fluid if possible.
4. Wire motor correctly for the intended voltage.
5. Clean off motor, let cool, and reduce workload.
6. test by rotating shaft; rotational grinding/loose shaft
requires bearing replacement.
7. test/repair/replace motor.
Machine has
vibration or noisy
operation. 1. Motor or machine component is loose.
2. excessive depth of cut.
3. Cutter/tooling is loose.
4. Cutter is dull or at fault.
5. Bit is chattering.
6. Quill is overextended.
7. Machine is incorrectly mounted or sits
unevenly.
8. Motor bearings are at fault.
1. inspect/replace stripped or damaged bolts/nuts, and
re-tighten with thread locking fluid.
2. decrease depth of cut.
3. Make sure tooling is properly secured.
4. replace/resharpen cutter.
5. replace/sharpen bit; index bit to workpiece; use
appropriate feed rate and cutting rpM ( page 29).
6. retract quill, then lower headstock.
7. tighten/replace mounting bolts in bench; relocate/
shim machine.
8. test by rotating shaft; rotational grinding/loose shaft
requires bearing replacement.
troubleshooting