Precor Precision 400 Series Service Manual page 209

15. Raise or lower the lift yoke on the lift motor jackscrew until the distance from the top of
the plastic yoke lift nut to the top of the screw is as close as possible to 1-1/4" with the
yoke facing reward. The final position of the yoke must be facing rearward. To raise or
lower the yoke nut position, hold the jackscrew from turning while screwing the lift
yoke assembly up or down as needed. If the lift motor jackscrew rotates (moves)
while adjusting the yoke position, the lift calibration will be invalid. Use the diagnostic
CROSSRAMP TEST to reset the lift motor ramp A/D number to 223 and repeat the
yoke adjustment.
Crossramp calibration incline A/D number: 223
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Lift Motor Calibration Distance: 1-1/4"
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Contact Precor Customer Support at support@precor.com or 800.786.8404 with
any questions.
6 Available Replacement Procedures
Lift Motor Replacement
Page 201