Pyro Light Optima
Pyro Light Optima XL
Adjusting the drum brake
Basic setup for the drum brake is carried out on the cable clamping
screw. Fine adjustment is carried out using the adjusting nut on the
brake cable. Unscrewing the adjustment nut will increase the braking
effect (Fig. 28).
•
Drum brakes only work on one drive wheel at a time!
•
Drum brakes are also subject to natural wear. If the braking effect
28.
decreases, the wheelchair must no longer be used. In order to avoid
this happening, for your own safety you should check that the
brakes are working properly each time before setting off!
•
Once you have finished the adjustment, re-tighten all screws and
carry out a brake test!
4.13. Backrest
In order to ensure a comfortable seating position, the rigidity
of the back sling can be adjusted. You can also adjust the backrest
height.
4.13.1. Back sling
The more taut the back sling, the more rigid the backrest will feel. First
remove the back cushion which is fixed in place with a hook and loop
fastener. You can then change the tension of the individual straps so
that they are more or less taut. In order to relieve tension on certain
areas of your back, you can make the straps there slightly looser. You
must now refix the back padded cover with the hook and loop fastener.
4.13.2. Backrest height
In order to be able to adjust the backrest height, we recommend
removing the sideguards and back padded cover first. You can then
29.
undo the screw fitting on both sides (Fig. 29) and move the frame to
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| Lightweight wheelchair
Lightweight wheelchair |
the required height. Then refit the screws in the recesses provided for
this purpose and tighten them by hand.
4.14. Push handles
The height of the push handles can be adjusted to make it more
comfortable for the attendant. Undo the lever screw (Fig. 30) on the
push handle and move to the required height. Then re-tighten the lever
screw to lock the push handle in place.
4.15. Tipping aids
In order to make it easier for an attendant to negotiate obstacles such
as kerb edges, tipping aids can be used. Hold the wheelchair firmly
with both hands on the push handles. Press one foot onto one of the
tipping aids and at the same time push the hands down (Fig. 31).
Tipping may be restricted by the anti-tip wheels.
4.16. Anti-tip wheels (optional)
The anti-tip wheels prevent the wheelchair from tipping over backwards.
There must be a gap between the rollers of the anti-tip wheels and the
ground of approx. 30-50 mm (Fig. 32).
Anti-tip wheels are particularly recommended for inexperienced
wheelchair users or amputees.
For safety reasons, always use the anti-tip wheels
as a pair!
Bischoff & Bischoff GmbH |2023-11-15 - Revision: 4
Pyro Light Optima
Pyro Light Optima XL
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30.
31.
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32.
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