Maintenance And Inspection; Adjusting Bed Clamping; Inspecting Motor Brushes; Changing Belt - Jet JWL-1221VS Operating Instructions Manual

Note: A 3mm hex key (K) can be used to help tighten/loosen
the index pin.
Caution:
Release index pin before turning on the lathe.
Never press the index pin while the spindle is turning.

8. Maintenance and inspection

General notes:
Maintenance, cleaning and repair work may only be
carried out after the machine is protected against
accidental starting by pulling the mains plug.
Clean the machine regularly (wear eye and dust protection)
Inspect the proper function of the dust collection.
Protect headstock spindle, tailstock quill, tool rest post and
machine bed from rust, by applying thin coat of oil or rust
protectorant.
Defective safety devices must be replaced immediately.
Repair and maintenance work on the electrical system may
only be carried out by a qualified electrician

8.1 Adjusting bed clamping

If adjustment is needed, slide the tailstock or toolrest to the
edge of the bed and slightly turn the cam lock nut (B, Fig 28).
Test the clamping function and repeat if necessary.
Fig 30
Fig 31

8.2 Inspecting motor brushes

Disconnect the machine from the power source
(unplug) !
A heavily worn or damaged brush may eventually cause
damage to the motor.
Periodically inspect the two carbon brushes, located at each
side of the motor.
Unscrew the cap and withdraw brush.
Replace both brushes if worn down to 6mm or if damaged.
(article no.: JWL1221VS-264.....motor carbon brush with cap,
2 pieces needed)
Reinstall brushes and caps.

8.3 Changing belt

Disconnect the machine from the power source
(unplug) !
Open the pulley covers and remove the Poly-V belt from the
lower pulley.
Loosen two set screws (A, Fig 33) and unscrew the hand
wheel.
Note: Left hand thread, turn clockwise to remove.
Loosen two set screws (B) in spindle pulley and one (C) in
spindle sensor collar.
Fig 32
Fig 33