13.0Troubleshooting the JWL-1440VS Lathe
Table 3
Symptom
Motor fails to develop full power.
Motor or spindle stalls or will not start.
Excessive vibration.
Tools tend to grab or dig in.
Headstock moves when applying pressure with Tailstock.
Tailstock moves when applying pressure.
Possible Cause | Correction | |
|
| |
Power line overloaded. | Correct overload condition. | |
Undersized wires in supply system, or | Increase supply wire size. | |
extension cord is too long. | ||
| ||
Running capacitor is bad. | Replace running capacitor. | |
Worn motor. | Replace motor. | |
Excessive cut. | Reduce depth of cut. | |
Worn or broken belt. | Replace belt. | |
Improper cooling of motor. | Blow out sawdust from motor housing | |
| fan. | |
Starting or Running capacitor is bad. | Replace capacitor. | |
Centrifugal switch is bad. | Replace centrifugal switch. | |
Worn spindle bearings. | Replace bearings. | |
Worn motor. | Replace motor. | |
Workpiece warped, out of round, has | Correct problem by planing or sawing | |
major flaw, was improperly prepared for | workpiece, or discard entirely and use | |
turning, or RPM is set too high. | new workpiece. Reduce RPM. | |
Worn spindle bearings. | Replace spindle bearings. | |
Worn drive belt. | Replace drive belt. | |
Motor mount bolts are loose. | Tighten bolts. | |
Lathe on uneven surface. | Adjust leveling feet. | |
Dull tools. | Keep tools sharp. | |
Tool rest set too low. | Reposition tool rest height. | |
Tool rest set too far from workpiece. | Reposition tool rest closer to workpiece. | |
Improper tool being used. | Use correct tool for operation. | |
Locking handle not tight. | Tighten handle. | |
Excessive pressure being applied by | Slide headstock to left end, lock firmly, | |
tailstock. | then apply pressure to workpiece with | |
| tailstock. Apply only sufficient force with | |
| tailstock to hold workpiece securely in | |
| place. | |
Cam lock nut needs adjusting. | Tighten cam lock nut. | |
Excessive pressure being applied by | Slide tailstock to right side of lathe | |
tailstock. | against the stop. Move headstock into | |
| position and apply pressure to | |
| workpiece with tailstock. | |
Lathe bed and tailstock mating surfaces | Remove tailstock and clean surfaces | |
are greasy or oily. | with a cleaner/degreaser. | |
| coat of oil to lathe bed surface. |
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