C776i Stairclimber
Page 43
10. Set the replacement primary sheave inside the primary belt then set the primary sheave in
its mounting position. Insert the four mounting bolts, removed in step 8 through the flanged
bearing assembly and the frame. Hand start the four mounting nuts on the mounting bolts.
Torque the mounting nuts to 120 inch pounds.
11. Slide a thrust washer onto one of the primary sheave shafts, then a wave washer and then
three more thrust washers.
12. Slide one of the HTD pulleys onto the shaft. Verify that it rotates as described in step 4 of
Procedure 7.7. Slide another thrust washer onto the shaft. Fasten the HTD pulley with the
retaining clip removed in step 5.
13. Replace the remaining HTD pulley as described in steps 11 and 12.
14. Tension both the primary and generator belts as described in Procedure 5.2.
15. Wrap one of the stairarm belts over the HTD pulley, behind and under the upper flanged
pulley. Wrap the belt under and around the lower front flanged pulley. Then lift the stairarm
and hook the return spring on its mounting peg. Check the belt to ensure there are no twists
in the belt. If there are remove the return spring from its mounting peg and rotate the return
spring to remove any twist. Hook the return spring on its mounting peg.
16. Replace the remaining stairarm belt as described in step 15.
17. Replace the left hand cover, right hand cover and rear cover sections per Procedure 7.1.
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