Precor 905e - Procedure 6.6 - Replacing the Lift Jack and Lift Column

905E, 9.1, 9.10 Treadmills
Page 36
Procedure 6.6 - Replacing the Lift Jack and Lift Column
Many steps include letters in parentheses after component references. These letters correlate to
the call outs in Diagram 9.1-13. Diagram 9.1-13 is an exploded view of the 9.1 Treadmill lift
assembly hardware.
Removing the Lift Assembly Hardware
1. Place the magnetic safety key in the OFF position, then unplug the treadmill from the wall
outlet.
WARNING
Before continuing with this procedure, review the Warning and Caution statements listed in
Section One of the Residential Treadmill Service Manual.
2. Remove the electronic console and crank handle as described in Procedure 6.1 of this
appendix.
3. Slide the pin wheel from the potentiometer shaft. If necessary, deflect the potentiometer
bracket to allow the pin wheel to clear the end of the potentiometer shaft. Set aside the pin
wheel.
4. Remove the jam nut and star washer securing the potentiometer to the potentiometer
bracket.
5. Position the crank handle on the lift jack shaft and use the 1/8” allen wrench to tighten one
set screw.
6. Rotate the crank handle in the negative direction until the pressure washer breaks.
Note:
You will hear a loud popping sound when the pressure washer breaks.
7. Loosen the crank handle set screw and remove the crank handle from the lift jack.
8. Remove the broken pressure washer and spacer washer from the lift jack shaft.
9. Remove the screws that secure the potentiometer bracket to the lift column.
10. Slide the drive wheel from the lift jack shaft. Set the drive wheel aside until maintenance
operations are complete.
11. Place the treadmill on its right side.