LifeFitness 9100 Service Manual page 72

Life Fitness Models 9100, 9500HR, 9700HR, and 9700HR w/Decline Treadmills
How To... Replace The Drive Motor
Tools Required: Hex key wrench set, socket and ratchet set, spring hook, and Phillips screwdriver
Step 1
Turn the unit power OFF at the switch, then unplug the line cord
at the wall outlet.
Screwdriver
Step 2
Remove the Phillip screws from the MOTOR SHROUD COVER,
and remove the motor shroud cover.
Front Roller
Drive Belt
Step 3
Disconnect the MOTOR CABLE CONNECTORS (3 and 6 Pins).
Idler Pulley
Step 4
Idler Arm
To relieve drive belt tension, insert the end of a flat blade
Allen Wrench
screwdriver in the slot of the IDLER ARM, then raise the idler
arm and fix it in the raised position by installing an Allen wrench
in the idler arm hole as shown.
CAUTION: DO NOT RAISE THE IDLER ARM HIGHER THAN
REQUIRED TO INSTALL THE ALLEN WRENCH.
Step 5
Drive Belt
Remove the four MOTOR MOUNTING BOLTS and lift out the
motor.
INSTALL THE DRIVE MOTOR BELT IN THE REVERSE ORDER
EXCEPT AS FOLLOWS:
Motor
Step 6
Install the motor in the unit securing it with four(4) nuts. Check to
see that the outer pulley faces of the motor and front roller (towards
user right side of unit) are aligned with each other. Use a straight
edge to check for proper alignment. If necessary, loosen the set
screws(2) in the motor pulley and move it in or out until alignment is
achieved, then tighten the set screws(2).
Step 7
With the motor pulley properly aligned, secure the idler arm bracket
in the raised position and reinstall DRIVE BELT around the pulley and lower the IDLER ARM. Test the unit prior to
reinstalling covers and end cap to insure belt doesn't jump.
Step 8
Refer to diagnostics section to log maintenance repair of the drive motor.
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