Kwik-Way
SVS II Deluxe Valve Refacer
Copyright © 2018 by Irontite Products Inc.
All Rights Reserved. Rev. 180802
pg. 23
CHUCK DRIVE BELT ADJUSTMENT
(See Figure Below)
Proper adjustment of the chuck drive belt will insure long life.
It is not necessary to run excessive tension in this belt. (Positive drive belts require less tension than “V”
type belts). Belt tension is adjusted by the motor mount bolts (Item 5 below). If the belt runs to one side
then the motor shaft is not parallel to the chuck. This is adjusted by bracket bolts (Item 3, below). Loosen
and adjust the motor until the belt runs true. Re-tighten bolts. It may be necessary to re-adjust belt tension.
Once complete, the belt should provide long life and trouble free operation.
CAUTION: When adjusting belt tension, DO NOT over tighten.
NOTE:
Chuck shaft must rotate freely, by hand. Over tightening bearing cap screws will damage the gear
motor. These should be snug. They are not intended to stop lateral movement of the chuck.
Lateral movement is prevented by the position of the belt pulley on the end of the chuck being
tight up against the chuck mount bearing mount.
5
Bearing Cap Screws
PROPER BEARING CAP SCREW ADJUSTMENT
Start with the bearing cap screw closes to the Valve end of the chuck. While rotating the check with your left
hand, tighten the bearing cap screw until you feel resistance turning and very slightly back off the screw.
Then move to the other bearing cap screw and repeat the process. Finally go back to the first bearing cap
screw and repeat the process. The last step is to check to see if there is any lateral play, If there is lateral
play loosen the spline pulley set screw (number 1 above) and while pushing the valve end of the chuck back
with your right hand, slide the splined pulley up on the chuck shaft until it just barely touches the Bearing
Saddle and then tighten the set screw. You want no lateral movement of the chuck, but you also do not
want the pulley to be creating any drag by rubbing against the bearing saddle.