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Bischoff & Bischoff GmbH • 03.01.2012
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sufficient experience. Where possible, somebody should
accompany you.
The static stability of the base model is 5°
(approx. 8%).
The critical obstacle height for the base model in the most
adverse situation (max. weight shift backwards) is 23 mm.
* The critical obstacle height is the height where the cent-
re of gravity (with user) is vertical over the edge of the
obstacle. If the user attempts to move forward over the
obstacle by driving the drive wheels without shifting the
centre of gravity forwards, the wheelchair tips over back-
wards.
According to STVZO 66/1 (German Road Traffic Act) of
01.01.1981, hand propelled wheelchairs require perma-
nently attached lighting to participate in public road traf-
fic (including on footpaths).
This consists of (passive):
• two red reflectors to the rear
• two amber reflectors on both sides.
If the wheelchair is used after dark, the following are
necessary in addition (active):
• one white light forwards
• one red light backwards.
These lights must work from an electrical circuit indepen-
dent of the movement (batteries) power.
Fig. 32
Pyro Light /
Pyro Light XL