Jiffy-Tap

Removing the Lead Screw:

without Quick-Change option

To change to a different thread lead, the Jiffy-Tap spindle must be changed. Order Option LS lead screw assembly and specify choice of any standard right hand thread from 6 to 40 threads per inch, left hand or metric.

The spindle is sold only as a matched set including spindle, lead screw nut, and nut housing. These parts are machined to a Class 3 thread fit. The nut and nut housing are pressed together. The lead screw nut is machined concentric with its pilot diameter.

No more than 5 or 10 minutes should be required to replace the spindle. Please follow these steps in sequence:

  1. Be sure to cut off all electrical power to the Jiffy-Tap unit before working on it.
  2. Loosen 3 screws and take off switch cover.
  3. Remove 4 socket head screws, which hold the limit switch plate, but do not remove the plate.
  4. Remove 3 socket head screws, holding lead screw nut housing to front of Jiffy-Tap.
  5. Lift the limit switch plate, and the limit switch slide bar, just far enough to disengage the slide bar from the disc on the spindle.
  6. Pull out the complete spindle assembly from the front of the Jiffy-Tap.