Service manual

C762, C764, C764i Stairclimber
Page 91
14. Place the wave washer and drive belt idler onto the idler shaft weldment.
15. Install the retaining ring next to the drive belt idler.
16. Have an assistant position the idler arm assembly at its mounting position on the climber
frame. Push the clevis pin through the climber frame and idler arm assembly. Push the hitch
pin into the clevis pin.
17. Route the drive belt over the disk hub and behind the drive belt idler (refer back to Diagram
7.16).
18. Using the needle nose pliers, place the spring in the top of the drive belt idler arm.
19. Mount the drive belt on the sheave by performing the following sub-steps:
a. Kneel on the right side of the climber and face the sheave.
b. Hold the drive belt between the 12 o'clock and 3 o'clock positions on the sheave rim.
c. Turn the sheave counterclockwise.
Note:
As you move the sheave, the belt will position itself on the rim.
d. Grasp the drive belt at the 4 o'clock position.
e. Turn the sheave counterclockwise to fully seat the belt on the sheave rim.
Note:
Make sure that the belt is on the sheave rim before you continue with this procedure.
20. Kneel behind the stair arms. Press down on the ends of the stair arms. Watch the drive belt
as it moves on the sheave, drive belt idler, and disk hub. If the drive belt does not track
correctly...
THEN... OTHERWISE...
Continue with the next step. Skip to Step 25.
21. Remove the set screws that secure the sheave to the sheave shaft.
22. Gently tap the sheave to re-position it on the sheave shaft.
23. Add a drop of blue loctite to the tip of each set screw. Replace the screws on the sheave
hub.
24. Return to Step 20.