b. Install the Yoke assembly onto the jackscrew with the yoke ramp mounting bolt
threads positioned on the bottom side of the yoke. Use one hand to hold the
jackscrew from rotating and the other hand to screw the Yoke Assembly onto the
jackscrew.
c. Adjust the Yoke so the distance from the top of the jackscrew to the top of the
Yoke Nut is as close to the 9" +/- 1/4" (23 cm +/- 0.6 cm calibration distance as
possible with the yoke direction pointing to the back (opposite the lift motor).
Note
: Make sure to install the Yoke Assy with the ramp mounting bolt threads on the
bottom of the yoke.
6. Install the lift motor:
a. Insert the clevis pin from the left side of the lift motor mount until it is flush with the
right side of the mount (do not allow the clevis pin to exit the right side of the lift
motor mount bolt hole).
b. Then install the lift motor assembly onto the lift motor weldment bracket so that
the clevis pin rests in the left side mounting bracket notch.
c. Tilt the lift motor assembly into the front tower weldment while carefully guiding
the Yoke and jackscrew into mounting position.
d. Next push the clevis pin completely through the right side of the weldment mount-
ing bracket and secure with the hitch pin.
Contact Precor Customer Support at support@precor.com or 800.786.8404 with
any questions.
Page 129
6 Replacement Procedures
Lift Motor Replacement
