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Operating a wheelchair is a dynamic activity. Therefore, operating
conditions are every bit as important to take into consideration as
seat position. The wheelchair should be as easy to handle as
possible. It must be adapted individually to the user's capacities.
Weight distribution is the determining factor. The more weight
there is on the castors, the harder the wheelchair is to manoeuvre.
Weight distribution is determined both by the user's size, weight
and position, and the fore/aft positioning of the back wheels.
The more weight that is placed over the back wheels, the easier
the chair is to handle.
Twin comes as standard with a 2° camber. This means that the
wheels are a little closer together up by the seat and backrest,
and a little wider apart at floor level. The advantages of this are
that the wheelchair
-Turns more easily
-Holds a steady course
-Has a broader support base
-Allows the user to keep his arms closer to his body when
moving forwards - which gives more strength to each push.
10:8 Centre of Balance
The centre of balance can be adjusted by changing the position of the
rear wheels.
-
Move the axle shaft forwards/backwards
Remember to adjust the brakes! See para 7:6
Tools: 24 mm socket wrench (10 mm spanner)
When the position of the rear wheels is moved forwards the
wheelchair is easier to manoeuvre, but the risk of tipping over back-
wards increases.
(!)
The centre of balance is also changed when the seat angle
and/or backrest angle is altered.
We recommend the use of anti-tippers .
Ensure that rear wheels with quick release hubs are mounted
securely
17
Fixed hub
Quick release hub
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