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Page 54
PARTS REMOVAL AND REPLACEMENT
3. Push up on the idler arm with one hand to relieve the tension on the
drive chain (See Drawing Below). Remove the master link from one end of
the drive chain and remove the drive chain from the sprockets.
4. Install the new drive chain by reversing the steps.
STEP ASSEMBLY
1. Remove the right and the left side covers.
2. Rotate the stairs until the step you want to remove is positioned in the
middle of the staircase.
3. Loosen and remove the nut from one end
of the step shaft on both the upper and
the lower hinges of that step (See
Figure to Right).
4. Remove the bearing and the washer
from each step shaft.
5. Grasp the opposite step retaining
nut with pliers or locking pliers.
Pull the step shaft out of the
upper and lower step hinges.
Step Tread
Step Hinge
Step Shaft
4 X Washer
2 X Bearing
2 X Nut