Bischoff & Bischoff GmbH | 12.05.2016
EN
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PYRO LIGHT OPTIMA
| Lightweight wheelchair
Lightweight wheelchair |
PYRO LIGHT OPTIMA
4.7. Brakes
4.7.1 Setting the parking brake
To lock the brake, simply push the brake lever forwards until it locks
(fig. 26). To release the locking brake, simply pull the brake lever
backwards (fig. 27).
4.7.2 Adjusting the brakes
If you notice that the available braking effect is no longer sufficient or
is uneven, proceed as follows:
•
Check the tyre profile depth. At the same time, check for even wear
of the tyres. If the profile depth in the middle of the tread is less
than 1mm, the tyre must be changed. If you have the necessary
technical experience you can change the tyre yourself, if you do not
feel confident to do this yourself, your specialist retailer 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
is 15 mm with the brake off (fig. 28). The braking bolt must be
aligned horizontally, that is parallel to the ground surface.
•
After unscrewing the two rounded head bolts with 5 mm Allen
head on the brake mounting (fig. 29), you can position the brake
correctly.
The brakes only operate on one driving wheel each!
Ensure that both drive wheels have the same tyre
pressure with pneumatic tyres to achieve good
directional stability!
After completion of the setting process, retighten
the loosened bolts and test the brakes!
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28
29
27
31
33
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4.8. Backrest
The tension of the backrest can be adjusted to enable you to sit
comfortably in the wheelchair. Additionally the height of the backrest
can also be adjusted.
4.8.1 Backrest cover
The tauter you adjust the backrest cover, the harder it feels. First remove
the backrest padding that is attached by Velcro tape (fig. 30).
Then you can adjust each of the belts so that they are firmer or less firm
(fig. 31). To lessen the tension on particular parts of your back, loosen
the belt there a little. Now you have to re-secure the back padding by
means of the Velcro tape.
4.8.2 Backrest height
To adjust the backrest height it is recommended that the side parts and
the back padding are removed first. You can then loosen the screws on
both sides (fig. 32) and adjust the frame to the desired height. Then
put the screws back into the holes provided and screw them firmly in.
4.9. Push handles
The height of the push handles can be adjusted to make it comfortable
for an accompanying person to push you. Loosen the lever screw
(fig. 33) on the push handles and adjust them to the required height.
Then firmly tighten the lever screws again to lock the push handles.
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