Replacing The Drive Roller - Precor C960 Service Manual

19. While an assistant supports the roller tube, place a wave washer on to the shaft. Slide the
new bearing onto the upper end of the shaft. Using the bearing replacement tool and a
hammer or mallet, gently tap the bearing into the tube. The bearing will be below flush and
the snap ring groove will be exposed when the bearing is properly set in the roller tube.
20. Using the snap ring pliers, install a retaining ring next to the bearing just mounted in the
roller.

Replacing the Drive Roller

21. Thread the drive roller adjustment bolts into the drive roller shaft.
22. Visually inspect the drive belt for wear, cracks, or other damage. Replace the drive belt if
required.
23. Slide the drive roller through the running belt. Place the drive belt on the drive roller pulley
and place the drive roller on the lower drive roller mounts.
24. Place the top roller mounts on the lower roller mounts.
Note:
When you place the top roller mounts over the ends of the roller shaft, the bolt heads and
washers must be outside of the clamp formed by the upper and lower roller mounts.
25. Thread the socket head screws through the top roller mounts and into the lower roller
mounts and tighten.
26. Push and hold the left side of the drive roller toward the drive motor.
Note:
Right, left, front, and back are from the perspective of a user standing on the treadmill and facing
the electronic console.
27. Securely tighten the left hand drive roller adjustment bolt. It is important that the bolt pulls
drive roller shaft all the way forward in the roller mount.
28. While applying rearward pressure to the drive roller, adjust the right hand drive roller
adjustment bolt until the drive roller is square relative to the treadmill frame.
29. Position the drive belt on the drive motor pulley.
30. Position the drive motor parallel to the line scored on the motor mounting pedestal.
31. Tighten the four bolts that mount the pedestal to the drive motor mounting plate.
32. Inspect and adjust the tension of the drive belt as described in Procedure 3.2 of the
Commercial Treadmill Service Manual.
C960 Series Commercial Treadmill
Page 65