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 |
| Step Tread |
|
| ||
| of the step shaft on both the upper and |
|
|
| the lower hinges of that step (See |
| Step Hinge |
| Figure to Right). |
| |
|
| 2 X Nut | |
|
|
| |
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 |
| 4 X Washer |
| upper and lower step hinges. | Step Shaft | 2 X Bearing |
|
|
|
Page 54
