Backrest Adjusting Wheel
Backrest Adjusting Wheel
Special tools, testers and auxiliary items required
• Assembly tool (3399)
Removing
- Turn the backrest adjustment wheel - 1 - until a locking mechanism is visible from behind - arrow A -. It may be necessary to use a flashlight.
- Hook in (3399) - item 2 - and pry in - direction of arrow B -.
- Turn backrest adjustment wheel - 1 - about 120° more.
- Hook in (3399) - item 2 - again and pry in - direction of arrow B -.
- Remove backrest adjustment wheel - 1 -.
Installation
Installation is reverse of removal, but note the following:
- Hand wheel must be pressed on until it audibly engages.
• If the hand wheel for backrest adjustment sits loosely on the adjustment shaft, the hand wheel for backrest adjustment must be replaced.