Drive Hub Assembly; Drive Shaft Assembly - Stairmaster Crossrobics 1650 LE Owner's Manual

PARTS REMOVAL AND REPLACEMENT

DRIVE HUB ASSEMBLY

1. Remove the drive shaft assembly.
2. The hub assembly is held in place by eight one-inch (2.5 cm) bolts
(four bolts on each side). Loosen and remove the bolts and slide the
housing out of the frame (see Figure 23).
3. Replace the hub assembly if the bearings are worn.
4. Reinstall the housing and the drive shaft assembly.
5. Reattach the side covers.

DRIVE SHAFT ASSEMBLY

1. Remove the left side and right rear covers.
2. Have an assistant support the pedal arms while you detach both
pedal arm springs from the frame pin. Lift the pedal arm chains off the
sprockets and lower the pedal arms to the ground.
3. Remove the drive chain.
4. Remove the snap ring from the left end of the drive shaft.
5. Remove the sprocket and other small parts from the left side of the
hub assembly (see Figure 23).
6. Slide the drive shaft to the right, out of the drive hub assembly.
7. Inspect the shaft and the bearings for excess wear or pitting. The
bearings should spin freely. Replace worn parts if necessary.
Page 56
!
WARNING
TO REDUCE THE RISK OF EYE INJURY, WEAR EYE
PROTECTION WHEN REMOVING SNAP RINGS.