Replacing The Lower Pca; Procedure - Precor Energy Series Service Manual

Replacing the Lower PCA

Procedure

Note: If the lower PCA is replaced, the treadmill calibration must be performed to ensure proper operation.
1. Set the treadmill on/off switch in the "off" position and remove the AC power cord.
2. A grounded anti-static wrist strap must be worn whenever the lower PCA is being handled.
3. Remove the treadmill hood.
4. Remove the JK1, JK2, JK3 and JK4 connectors from the lower PCA. Remove the wires from
the T1 (AC1), T2 (AC2), T3 (M-) and T4 (M+) terminals on the lower PCA.
5. Remove the two screws (retain hardware) that fasten the lower PCA to the frame and remove
the lower PCA from the treadmill.
6. Install the replacement lower PCA at its mounting position.
7. Connect the JK1, JK2, JK3 and JK4 connectors to the replacement lower PCA.
8. Connect the red wire (from the circuit breaker) to terminal T1 (AC1) of the lower PCA, red-
black wire to T2 (AC2) of the lower PCA, the red wire (from the drive motor) to T3 (M+) of the
lower PCA and black wire to T4 (M-) of the lower PCA.
9. Replace the treadmill hood. Plug in the AC power cord and set the on/off switch to "on".
10. Perform the treadmill calibration procedure. Verify the treadmill operation.
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