Procedure 4.1 - Calibrating The Lift Motor - Precor 9.23 Service Manual

Procedure 4.1 - Calibrating the Lift Motor

Note: This calibration procedure must be performed whenever the lift motor has been replaced
or the lift calibration has been disturbed.
1. Set the on/off switch in the "off" position and unplug the AC power cord from the AC outlet.
2. Place the treadmill on it's left side. Remove the bolt that fastens the lift tube to the lift
platform and swing the lift platform away from the lift motor's lift tube.
3. Plug the treadmill's AC power cord into a 120 VAC outlet. Set the on/off switch in the "on"
position. When the treadmill is initially placed in a program and the running belt starts in
motion, the incline will always return to the 0% incline position (unless it is already in the 0%
incline position).
4. Press the QUICKSTART key when the running belt starts the incline will move to its 0%
incline position (unless it is already in the 0% incline position). When the incline motor stops
remove the safety key. Enter the incline calibration mode per procedure 2.3. Set the incline
A/D number between 44 and 48.
5. Press the ENTER key to save the A/D number. The treadmill will then go into the calibration
mode.
Warning
During this procedure the running belt will be accelerated to the treadmill's maximum
(12.0 mph) speed.
6. Rotate the lift tube until the distance from the end of the lift tube to the lift tube sleeve is
1-9/16 inch. Refer to Diagram 4.1.
Diagram 4.1 - Lift Motor Calibration
Lift
Tube
20081-118
1-9/16"
9.23, 9.27 Treadmill
Lift
Tube
Sleeve
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