hammer.
NEVER STRIKE THE SPINDLE DIRECTLY WITH A METAL-HEAD HAMMER. YOU WILL
DAMAGE THE SPINDLE.
10. The spindle has now been removed from the headstock. See Fig. 3 below for reference. The faceplate-side
bearing may still be on the spindle shaft; that is OK. Remove the old belt and the pulley.
INSTALLING THE NEW BELT
11. Align the spindle with the bearings in the headstock and begin re-inserting it.
12. Re-install the pulley.
NOTE:
the keyway on the pulley (rectangular notch cut into the central mounting hole)
must align with the key on the shaft, or it will not go back on.
1. Make sure the pulley is oriented correctly, as shown in Fig. 2 above.
2. If the pulley is difficult to re-install, use some steel wool to gently go over the pulley’s mounting hole and
the spindle to remove any metal burrs, wood shavings, etc. Wipe down with a cloth when done.
13. Take the new belt (part no. 3424-037 or 34018-050, depending on your lathe’s model) and loop it over the
spindle pulley.
14. Align the handwheel end of the spindle with the handwheel-end bearing. Using a rubber mallet, tap the spindle
through the handwheel-end bearing. The same cautions apply as in step 9 above.
Do not strike the spindle
directly with a metal-head hammer.
15. Make sure the spindle is correctly seated in the housing. The outside of the faceplate-side bearing should be
flush with the outside of the headstock.
1. If working on model 34018, ensure the magnet (embedded in the spindle) is aligned with the sensor.
16. Slide the pulley into position.
NOTE:
there is a flat on the spindle (see Fig. 3 above, left of the key). The set
screw on the pulley should be tightened until it contacts this flat. This will help you position the pulley, relative
to the inside walls of the headstock (see also step 7). Make sure the belt is plumb when re-installing it onto the
motor pulley. Make sure the belt is set to the same speed on both pulleys (i.e. if it is set to the slowest speed
on the motor pulley, it is set to the slowest speed on the spindle pulley).
17. Re-install the handwheel. Tighten the set screws. Place the belt under tension. Make sure everything spins as
it should and there is no abnormal vibration, etc. Close the belt covers.
QUESTIONS? PROBLEMS?
Contact WEN Customer Service at 1-800-232-1195, M-F, 8-5 CST, or email
Date last modified: 2020.02.03
Fig. 3: Spindle removed from headstock.
