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Motor & Electrical (continued)
symptom
possible Cause
Machine stalls or is
10. Contactor not getting energized or has poor
overloaded.
contacts.
11. Motor has overheated.
12. spindle rotation switch at fault.
13. Motor is at fault.
14. Frequency drive at fault.
Machine has vibra-
1. Motor or component is loose.
tion or noisy opera-
tion.
2. pulley is loose.
3. Motor mount loose/broken.
4. Machine is incorrectly mounted or sits
unevenly.
5. Motor fan is rubbing on fan cover.
6. Chuck or cutter is at fault.
7. Motor bearings are at fault.
8. gearbox is at fault.
g0667X high precision Vs Vertical Mill
possible solution
10. test for power on all legs and contactor operation.
replace if faulty.
11. Clean off motor, let cool, and reduce workload.
12. turn switch to FWd/rEV; replace bad switch.
13. test/repair/replace.
14. test/replace.
1. inspect/replace stripped or damaged bolts/nuts, and
re-tighten with thread locking fluid.
2. realign/replace shaft, pulley, setscrew, and key as
required.
3. tighten/replace.
4. tighten/replace anchor studs in floor; relocate/shim
machine.
5. replace dented fan cover; replace loose/damaged
fan.
6. replace out-of-round chuck; replace/resharpen cut-
ter; use appropriate feed rate and cutting rpM.
7. test by rotating shaft; rotational grinding/loose shaft
requires bearing replacement.
8. rebuild gearbox for bad gear(s)/bearing(s).
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