Life Fitness Sport and Essential Consumer Treadmills User Manual
Sport and Essential Consumer Treadmills
Incline Motor/Motor Controller Replacement
HOW TO…REPLACE THE INCLINE MOTOR OR MOTOR CONTROLLER
Special service tools required: none
NOTE: The treadmill must always be calibrated after an incline motor or motor controller replacement.
Se the calibration procedure later in this section.
1. Start with the treadmill in
its unfolded position and
the deck at zero incline.
2. Turn the unit off at the
power switch.
3. Unplug the line cord from
the wall outlet.
4. Remove the two motor
cover front screws, the two
motor cover side screws,
and the two spring washers
from the motor cover.
5. Lift off the motor cover.
6. Note the color and location of the main
power wiring on the motor controller
board before proceeding.
1
Sport and Essential Consumer Treadmills
Incline Motor/Motor Controller Replacement
HOW TO…REPLACE THE INCLINE MOTOR OR MOTOR CONTROLLER CONTINUED
7. Remove the black and white
wires from the unit’s AC
connector. Leave the green
ground wire attached.
8. Disconnect the incline motor’s
black and white wires from the
motor controller. Leave the red
ground wire attached.
9. Connect these two incline-motor
wires to the black and white
connections at the bottom
position fast-ons of the AC
connector.
10. Plug the line cord into the wall
outlet. The unit will raise
automatically and stop at its
maximum (10%) incline.
11. Unplug the line cord.
If the incline motor is being replaced,
proceed to step 12. If only the motor
controller is being replaced, skip to step 24.
2
Sport and Essential Consumer Treadmills
Incline Motor/Motor Controller Replacement
HOW TO…REPLACE THE INCLINE MOTOR OR MOTOR CONTROLLER
CAUTION! After the incline motor lift nut screws are removed in step 15,
the frame is supported only by the nitrogen gas shocks. The treadmill’s
deck can collapse suddenly and must be propped up before proceeding.
12. Prop up the deck. Use a large hex key in models with a hole in the rail for that
purpose. For other models, place something sturdy under the deck to prevent it from
collapsing during the remainder of this procedure.
13. Disconnect all wires to the incline motor (see the wiring diagrams on pages 6 and 7.)
14. Disconnect the ground and capacitor
wires from the motor controller board.
15. Remove the left and right lift nut
screws.
16. Remove the incline motor pin and clip.
17. Remove the incline motor.
18. Install the new incline motor in the
frame.
19. Insert the incline pin and clip.
Right Lift
Nut Screw
Adjustment
Hole “A”
Lift Nut
Assembly
Left Lift Nut Screw
Threaded Shaft
Incline
Motor
20. Incline motors are shipped with the lift
nut at 10%. Adjust the nut location so
that the distance from Adjustment Hole
“A” to Adjustment Hole “B” on the
incline motor is 9¼ inches (235mm).
21. Pivot the incline motor toward the front
roller.
22. Reattach the green, black, and white
1
wires
to the incline motor.
Adjustment
Hole “B”
1
Incline motor wire configuration: green = ground, black = up, white = common.
3
Loading...