Procedure 7.11 - Replacing A Step-Up Pulley Assembly - Precor EFX5.31 Instruction Manual

Procedure 7.11 - Replacing a Step-Up Pulley Assembly

Warning: Care must be taken when work is being performed in the area of the stairarms. Pinch
points exist between the stairarm and ramp and between the stairarm and crankarm,
when the rear covers are removed.
Procedure
1. Set the on/off switch in the "off" position, then unplug the power cord from the wall outlet.
WARNING
Before continuing with this procedure, review the Warning and Caution statements listed in
Section One, Things You Should Know.
2. Remove the access panel, top, left and right cover sections as described in Procedure 7.1.
3. Remove the stairarm assemblies as described in Procedure 7.17.
4. Remove the crankarm assemblies as described in Procedure 7.6.
5. Mark the current position of the step up belt tension bolts and the position of the idler pulley
mounting bolt in its adjustment slot with a pen or white out. This will enable you to recreate
the existing tension settings later in this procedure. See Diagram 5.3
6. Remove tension from the drive belts.
7. Slide the step up and input belts off of their pulleys.
8. Remove the left and right tension bolts, locking tabs and brackets.
9. Loosen the step up pulley axle nuts and slide the step up pulley assembly with both the step
up and input belts out of the drive unit.
10. Place the step up and input belts on the replacement step up pulley assembly.
11. Set the replacement step up pulley assembly with the step up and input belt at it's mounting
position in the unit. Replace the tensioning bolts, locking tabs and brackets removed in step
8. Thread the left and right tension bolts into the step up pulley shaft.
12. Slide the step up and input belts onto the input drive assembly as you set the input drive
assembly in its mounting position in the unit.
13. Slide the pillow block bearings onto the input pulley shaft.
14. Thread and hand tighten the pillow block mounting bolts into the drive weldment upright.
Torque the pillow block mounting bolts to 120 inch pounds (10 foot pounds).