Precor TRM 811.v2, Service Manual

Page: 78 / 114

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Replacing the Motor Control (MC) Module
1. Set the treadmill on/off switch in the off position and remove the AC line cord from the AC outlet.
2. Remove the hood.
3. Facing the front of the treadmill, loosen the two screws on the left side of the MC. Do not
remove them as the MC has slots on the left side of the housing.
4. Loosen the two screws on the right side until they are free of the frame. Do not remove them
completely as they will stay attached to the plate mounted to the MC.
5. Lift the MC from its location and then disconnect all cables connected to it.
Note:
note
The COMM cable has dielectric grease applied to ensure proper connections are
maintained. Do Not wipe off the grease.
6. Reconnect all cables and connectors removed in step 5.
7. Set the replacement motor control module in its mounting position
8. Tighten securely all 4 screws.
9. Replace the hood.
10. Check treadmill operation per, Checking Treadmill Operation .
Figure 24: Motor Control Module