Setting The Drive Wheels Horizontally; Adjusting The Drive Wheels Vertically - Otto Bock Motus CV Instructions For Use Manual

WARNING
Incorrectly adjusted wheelbase
Tipping over, falling of the user due to unstable settings
► Please note that with the drive wheel in a more forward mounting position and with an unfavourable body pos­
ition, the user may tip backwards even on level ground.
► Use an anti-tipper for inexperienced users and with extreme settings of the drive wheel.
► Be sure to position the drive wheels towards the rear for transfemoral amputees. This improves the stability of
the wheelchair.
INFORMATION
Changing the drive wheel position can also change the angle between the caster wheel journal and the ground.
However, this must always be approx. 90° and thus readjusted accordingly. The knee lever wheel lock also has
to be readjusted.

7.3.1 Setting the drive wheels horizontally

The horizontal position of the drive wheels is adjusted by moving the fitting horizontally in the drive wheel adapter.
Changing the drive wheel position has the following effects:
Position of drive wheel
Move backwards (passive setting) •
Move forwards (active setting)
The drive wheel can be installed at 4 depth positions in the drive wheel adapter.
1) Remove the wheels.
2) Loosen the hexagon nut (see fig. 7, item 1) from the fitting and remove the fitting towards the inside.
3) Slide the fitting back on in the desired position and tighten the hexagon nut slightly.
4) Check the toe-in and adjust as needed (see Page 20).
5) If necessary: The distance between the drive wheel and the side panel can be continuously adjusted by turn­
ing the counter nut on the fitting.
6) Tighten the hexagon nut (see fig. 7) and the counter nut on both sides of the fitting to 50 Nm.
INFORMATION: After adjustment, the distance of the left and right fittings to the side panel must be
the same.
7) Check the depth setting. Both sides must be positioned exactly the same. Readjust if required.
8) If necessary: Readjust the height and alignment of the caster attachment device as well as the wheel locks
(see information at the start of the section).

7.3.2 Adjusting the drive wheels vertically

The vertical position of the drive wheels can be changed by vertically moving the drive wheel adapter in the frame.
Combined with adjusting the height of the caster wheels, this also allows the seat height to be optimally adjusted to
individual requirements.
Changing the drive wheel position has the following effects:
Drive wheel position
Move upwards
Motus CV, Motus CS
Effects
Larger wheelbase
• Larger turning circle
• Greater stability of the wheelchair
• Wheelchair is harder to tip backwards when crossing obstacles
• Position recommended for inexperienced users
• Smaller wheelbase
• Less load on caster wheels = greater manoeuvrability
• Less stability of the wheelchair
• Wheelchair is easier to tip backwards when crossing obstacles
INFORMATION: An anti-tipper should be installed if necessary.
• Setting recommended only for experienced users
Effects
• The higher the drive wheel position, the more the seat surface is tilted to
the rear
• Wheelchair is easier to tip backwards when crossing obstacles
Settings and assembly instructions
17