Replacing The Drive Motor; Procedure - Precor Energy Series Service Manual

Replacing the Drive Motor

Procedure

1. Set the treadmill on/off switch to "off" and remove the treadmill power cord from the AC outlet.
2. Remove the treadmill hood.
3. 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 motor and installed on a
different motor. If the drive motor is replaced, the drive motor and flywheel should be replaced
as a unit.
4. Disconnect the red and black drive motor wires from the lower PCA and green-yellow wire
from its frame ground.
5. Loosen the four drive motor mounting nuts. Loosen the drive belt tension adjustment bolt to
remove tension from the drive belt. Remove the drive belt from the drive motor pulley.
6. Remove the four nuts that fasten the drive motor to its mounting base. Remove the drive
motor from the treadmill.
7. Set the replacement drive motor in the mounting position. Replace and hand tighten the drive
motor mounting nuts removed in step 6. Set the drive belt in place on the drive motor pulley.
8. Mount the drive motor, walk on the drive belt and set tension to specification, see "Adjusting
Drive Belt Tension".
9. Connect the black wire to the T4 (M-) terminal of the lower PCA, the red wire to the T3 (M+)
terminal of the lower PCA and the green/yellow lead to the frame ground termination.
10. Route the drive motor wires and fasten them in place with cable ties.
11. Verify the treadmill operation.
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