Jet JWL-1221SP User Manual

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Operating Instructions and Parts Manual

12 x 21-inch, 6-Speed Wood Lathe

Model JWL-1221SP

JET

427 New Sanford Road

LaVergne, Tennessee 37086 Part No. M-719115

Ph.: 800-274-6848 Edition 1 06/2018

www.jettools.com Copyright © 2018 JET

Table of Contents

Questions and Answers:

G
Gerald Brady DVMAug 11, 2025
Why does my Jet JWL-1221SP motor fail to develop full power?
- R
  Ryan FloresAug 11, 2025
  The motor may fail to develop full power due to several reasons. It could be that the power line is overloaded, requiring you to correct the overload condition. Another reason might be too many machines running on a single circuit; try turning off other machines or dedicating a separate circuit for the lathe. Undersized wires in the power supply system can also be a cause, so consider increasing the supply wire size. Lastly, a worn motor could be the culprit, in which case you should consider replacing it.
K
Kelly ZamoraAug 16, 2025
What to do if my Jet JWL-1221SP Lathe motor or spindle stalls or will not start?
- A
  Ashley GutierrezAug 17, 2025
  If your Jet Lathe's motor or spindle stalls, it could be due to a few reasons. First, check if the cut is excessive and reduce the depth of cut if needed. Secondly, inspect the belt for improper adjustment, wear, or breakage; adjust or replace the belt as necessary. Worn spindle bearings can also cause this issue, so consider replacing them. Finally, a worn motor might be the reason, and replacement may be required.
J
Janice WelchAug 23, 2025
Why is there excessive vibration in my Jet JWL-1221SP Lathe?
- R
  Raymond SullivanAug 23, 2025
  Excessive vibration in your Jet Lathe can stem from several causes: * The workpiece might be warped, out of round, have a major flaw, or was improperly prepared for turning. Correct this by planing or sawing the workpiece, or discard it and use a new one. * Worn spindle bearings can also cause vibration; replace them if necessary. * A worn drive belt can contribute to vibration, so replace it. * Check if the motor mounting fasteners are loose and tighten them. * Ensure the lathe is on a flat surface.
K
Kristen CoxAug 28, 2025
What to do if Jet JWL-1221SP Lathe tools tend to grab or dig in?
- C
  Caleb BennettAug 28, 2025
  If your Jet Lathe tools tend to grab or dig in, several factors might be at play. Ensure your tools are sharp. If they are dull, keep them sharp. Also, check the tool support height. If it's set too low, reposition it. Similarly, if the tool support is too far from the workpiece, reposition it closer. Lastly, verify that you are using the correct tool for the operation.
N
Nicole LawrenceSep 4, 2025
How to fix tailstock that moves when applying pressure on Jet JWL-1221SP?
- M
  Matthew AyersSep 4, 2025
  If the tailstock of your Jet Lathe moves when applying pressure, it could be due to a couple of reasons. The cam lock nut might need adjusting, so try tightening it. Alternatively, the lathe bed and tailstock mating surfaces might be greasy or oily. Remove the tailstock and clean these surfaces with a cleaner/degreaser, then re-apply a light coat of oil to the lathe bed surface.

Jet JWL-1221SP Specifications

General

Brand	Jet
Model	JWL-1221SP
Category	Lathe
Language	English

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