917, 917si Treadmillr
Page 12
Procedure 4.2 - Calibrating the Lift (917si only)
WARNING
Always turn off the circuit breaker and unplug the treadmill before you remove the treadmill hood.
Procedure
1.
Lay the treadmill on it’s side and unsnap the lift platform wheel axle from the lift platform.
Remove the wheels and axle from the lift motor tube. See Diagram 4.1.
2.
Set the circuit breaker in “on” position. Access the diagnostics program, as in Procedure 2.1,
and proceed to the lift potentiometer increment number. Operate the lift until the lift
potentiometer increment number is 20.
3.
Thread the lift tube onto the lift drive screw until the distance between the top of the lift tube
and the lift motor is 6-3/4 inches
±
1/8 inch. See Diagram 4.2 Be sure that the lift motor drive
screw does not turn as you turn the lift tube. If the drive screw turns the potentiometer
increment number in step 3 will change. The potentiometer increment number must be 20
after the lift tube has been threaded into position.
4.
Exit the diagnostic program and set the circuit breaker in the “off” position.
5.
Slide the lift platform axle into the lift motor tube. Rotate the lift tube only enough to line up
with the lift platform. Slide two wheels onto each end of the lift platform axle. Align the
wheels with the wheel slots in the lift platform and snap the lift platform axle into the lift
platform.
6.
Set the treadmill upright. Set the circuit breaker in the “on” position. Operate the lift between
0% and 10% several time to ensure that the lift is functioning normally.
