Procedure 7.7 - Replacing A Pillow Block Bearing - Precor 5.23 User Manual

Procedure 7.7 - Replacing a Pillow Block Bearing

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 A.C. outlet.
2. Remove the front, top, left and right cover sections as described in Procedure 7.1.
3. Remove both stairarm assemblies per Procedure 7.17.
4. Remove the crankarm from the same side as the pillow block bearing that you are replacing.
5. Remove the eddy current magnet per Procedure 7.13.
6. Remove tension from the input pulley and step-up pulley belts as described below:
a. Loosen the input belt tensioner axle nut and turn the input belt tensioner adjustment bolt
counterclockwise until tension is removed from the input belt. (See Diagram 5.3)
b Straighten the locking tabs and turn the left and right tension bolts counterclockwise until
tension is removed from the step up belt. (See Diagram 5.3)
c Slide the input and step up belts off of their pulleys.
7. Remove the nuts that secure both pillow block bearings to the mounting studs (serial codes
DF and SK) or mounting bolts (serial code AA23) on the drive weldment uprights. (See
Diagram 7.9 or Diagram 7.10)
8. Lift the pillow block assembly off of the mounting studs and slide the pillow block assembly
off of the input pulley shaft.
9. Slide the replacement bearings onto the input pulley shaft and set the pillow block bearings
in their mounting position on the frame studs.
5.23 Elliptical Fitness Crosstrainer
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