9.41S, 9.41Si Treadmill
Page 15
Procedure 4.1 - Calibrating the Lift Motor
1.
Turn off the treadmill with the circuit breaker, then unplug the treadmill from the wall outlet.
2.
Remove the hood.
3.
Using a drop cloth for protection, place the treadmill on its right side. Remove the bolt and
nut that secure the lift tube to the lift platform.
4.
Plug the power cord into the wall outlet, then turn on the treadmill with the circuit breaker.
5.
Enter the diagnostics routine per Procedure 2.1 or Procedure 2.2 as appropriate.
CAUTION
While running the lift motor in the calibration mode it is possible to operate the lift motor beyond
the motor's normal limits. When you perform the next step, care must be taken not to jam the lift
tube against the motor frame.
6.
If you are servicing a 9.41S treadmill built before April 1, 1996, use the
INCLINE
keys to set
the Calibration Number to 20. Set the Calibration Number to 22 if you are servicing a 9.41S
treadmill built after April 1, 1996 or a 9.41Si treadmill.
7.
Press and hold
STOP
to get back to the
Enter Your Weight
banner.
8.
Turn off the treadmill with the circuit breaker, then unplug the treadmill from the wall outlet.
9.
Insert the bolt removed in Step 3 into the lift tube. Turn the lift tube clockwise, by hand, as
far as possible and remove the bolt. Then turn the lift tube 10 turns (1-1/2”)
counterclockwise.
10. Replace the bolt and nut that secure the lift tube to the lift platform. Return the treadmill to
an upright position.
11. Plug the power cord into the wall outlet, then turn on the treadmill with the circuit breaker.
12. Check the calibration of the lift system by performing the following steps:
a
Press the
INCLINE
▲
key until the electronic console displays twelve percent incline;
b
Use the I
NCLINE
▼
key to return the treadmill to zero percent incline.
13. Using the ruler, measure the distance between the floor and the top of the front and back
ends of the side rail. The distance between the floor and the top of the front end of the side
rail should be equal.
14. Re-install the hood.
