Procedure 6.6 - Replacing The Drive Motor/Flywheel - Precor 9.17 Appendix

Procedure 6.6 - Replacing the Drive Motor/Flywheel

The flywheel on the 917 and 917si treadmills is balanced on the drive motor. Do do not
1.
remove or reposition the flywheel on the drive motor.
2. Set the circuit breaker in the "off" position and remove the AC line cord from the AC outlet.
3. Remove the lower front and upper front covers (hood).
4. Remove the running bed trim strips. Turn the take up roller bolts counter-clockwise until all
tension has been removed from the running belt.
5. Turn the drive belt tension bolt counter-clockwise until all tension is removed from the drive
belt (See Diagram 6.2). Remove the drive belt from the drive motor pulley.
6. Remove the bolts that retain the drive roller and remove the drive roller.
7. Remove the bolts that fasten the rear of the running bed to the treadmill frame. Slide the
running bed 8 to 10 inches toward the rear of the treadmill.
8. Remove the shield from the lower PCA. Disconnect the AC input and drive motor wiring
from the lower PCA. Disconnect the interconnect cable, lift motor and speed sensor
connectors from the lower PCA.
Diagram 6.6 - Lower PCA
Drive Motor
Wiring
AC Input
Wiring
Lift Motor
Cable
9.17, 917si Treadmill
Interconnect
Cable
Speed
Sensor
Cable
F2 Fuse
F1 Fuse
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