Removing The Steering Drive - Otto Bock Xeno Service Manual

6.5.9 Removing the Steering Drive

NOTICE
When installing the new chain, only tighten the chain tensioner on the interior side.
INFORMATION
Only the steering motor tolerance is transferred via the chain.
The drive motor for the steering and the chain drive together form a unit that can only be replaced
as a whole if necessary.
Preparation:
❒ Move the wheelchair to the standing position.
❒ Remove the caster (see Section 6.5.3).
❒ Remove the steering potentiometer (see Section 6.5.8).
Tools:
❒ Allen wrenches, sizes 2.5, 4, 5 mm
❒ Small Phillips screwdriver
❒ Socket, size 19
Steps:
1. Loosen the two Allen head screws on the cover.
Figure 31. Loosen the Allen head screws on the cover
2. Remove the cover
3. Loosen the four Phillips head screws on the chain guard (two on the inside, two on the outside).
37