Adjusting The Brakes; Centre Of Gravity, Seat Angle And Seat Height; Adjusting The Drive Wheel - B+B BX 11 Manual De Instrucciones

BX 11
| Active wheelchair

4.7.2 Adjusting the brakes

If you notice that the available braking effect is no longer sufficient or
is uneven, proceed as follows:
• With pneumatic tyres, always ensure that both drive wheels have
the same tyre pressure to achieve good directional stability!
• Check the tyre tread. Check also that the friction is even. If it is not,
or if the tread is no longer even visible, the tyre must be replaced.
If you have the necessary technical knowledge, you can change the
tyre yourself. If you do not feel confident about doing this yourself,
your qualified mobility dealer will be able to help you.
• Now check the adjustment of the brake. This must be set so that
the gap between the surface of the wheel and the braking bolt
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is 15 mm with the brake off (Fig. 33). The braking bolt must be
aligned horizontally, that is parallel to the ground surface.
• To adjust the gap, loosen the two Allen screws on the brake
mounting (Fig. 34).
• You can then push the braking system along the mounting into the
correct position.
• Then tighten both Allen screws again.
• Make sure that the brake fully locks into place when the lever is
operated and does not snap back.
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• After completing the adjustment process, tighten the screws again
and test the brakes!
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The parking brake only affects one drive wheel!
The adjustment of the drum brake can be found in
the installation manual.
Adjustment of the brakes should be carried out
by trained specialist staff. However, if you have
enough experience, you can also carry out this work
yourself. Nevertheless be aware that incorrectly
adjusted brakes may have life-threatening
consequences.
4.8. Centre of gravity, seat angle
and seat height

4.8.1. Adjusting the drive wheel

The position of the drive wheel is a criterion for easy, comfortable,
pleasant driving.
• The drive wheels can be moved in the vertical direction to adjust
the seat height and the seat angle (Fig. 35).
• The drive wheels can be shifted horizontally for optimal adjustment
of the position of the centre of gravity (Fig. 36).
If the full floating axle is attached in the lowest position, it is possible
to position the seat surface so that it is horizontal or sloping forwards.
However, the forwards-sloping seat angle also depends on the position
of the front wheel.
Mounting the full floating axle in the highest position achieves a steep
seat slope (towards the back). In this position, the seat inclination
and centre of gravity shift backwards, and the wheelchair can tip over
backwards more easily. Use the anti-tip wheels!
Changing the seat angle causes a risk of tipping.
Bischoff & Bischoff GmbH | 01.06.2019
BX 11
Active wheelchair |
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36
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