Precor Treadmills 932i Service Manual download pdf (Page 37)

C932, C932i, C934, C936i Treadmill

Page 37

Procedure 6.5 - Replacing Drive Motor

1. Set the treadmill circuit breaker in the “off” position and unplug the treadmill’s line cord from

the AC outlet.

1. Remove the hood.

2. The drive motor and flywheel are balanced as a matched pair. Since the flywheel is

balanced to a specific motor, flywheels should not be removed from one and installed on a

different motor. If the drive motor is replaced, the drive motor and flywheel should be

replaced as a unit.

3. Remove the screws that fastens the speed sensor mounting bracket to the treadmill drive

motor. See Diagram 6.4. Move the speed sensor and bracket as far from the drive motor as

possible.

4. Remove the blue and brown wires from the drive motor cooling fan.

5. Disconnect the red and black drive motor wires from the lower PCA.

6. Loosen the four drive motor mounting bolts. See Diagram 4.3. Remove the drive belt from

the drive motor pulley.

7. Remove the four bolts that fasten the drive motor to its mounting base. Remove the drive

motor from the treadmill.

8. Remove the four screws that fasten the drive motor cooling fan onto the drive motor.

Remove the fan from the drive motor.

9. Mount the drive motor cooling fan onto the replacement drive motor with the screws

removed in step 7. Torque the fan mounting screws to 25 inch pounds.

10. Set the drive motor in it’s mounting position. Replace and hand tighten the drive motor

mounting screws removed in step 6. Set the drive belt in place on the drive motor pulley.

11. Tension the drive belt and mount the drive motor per Procedure 4.2, steps 3-5.

12. Connect the brown and blue fan wires to the drive motor cooling fan. The blue and brown

wires can be connected to either terminal.

13. Connect the black and red drive motor wires to the mating black and red connectors on the

lower PCA.

14. Set the sped sensor and mounting bracket in position on the drive motor and fasten with the

screws removed in step 3. Torque the mounting screws to 25 inch pounds.

15. Re-install the hood.per Procedure 6.11

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Precor Treadmills 932i Service Manual Page 37