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6.9 Caster wheels and caster forks
CAUTION
Incorrect caster wheel position when leaning forward in the wheelchair
Tipping over, falling due to incorrect caster wheel positioning
Prior to activities that require you to bend forward in the wheelchair (e.g.tying your shoes), maximise the sta
bility of the wheelchair.
In order to do so, push the wheelchair backwards until the caster wheels turn forward.
The combination of caster wheels and caster forks ensures the ability to hold a straight line and navigate bends
securely.
The caster wheels and caster forks have been chosen by the qualified personnel according to the needs of the
users.
6.9.1 Approach in case of stiffness
In case of stiffness, the caster wheel axles should be cleaned and oiled.
Oiling the caster axle
1) Remove dirt (such ashairs) from the caster axle between the caster wheel and caster fork.
2) Lubricate the caster axle between the caster wheel and caster fork with a few drops of thin, resin-free oil (sew
ing machine oil).
6.10 Wheel locks
The wheel locks secure the parked wheelchair against rolling away.
The drum brakes allow the attendant to slow the wheelchair easily and safely by activating the wheel lock lever.
6.10.1 Using the wheel locks
WARNING
Improper use of the wheel lock
Falling due to abrupt braking, rolling away of the wheelchair, crushing of hands
Do not use the wheel lock as a driving brake.
Always engage the wheel lock on both sides.
Apply the wheel lock to prevent the wheelchair from moving on uneven ground or during transfers (e.g. into a
car).
Do not reach between the rear wheel and the wheel lock when driving the wheelchair.
Ensure that the knee lever wheel lock is properly adjusted (approx. 5mm gap to the tyres).
Please contact the qualified personnel who adjusted your product for readjustment of the wheel lock.
Activating/deactivating the knee lever wheel lock
1) Push the handle of the knee lever wheel lock forward (see fig.24).
The wheel lock bolt secures the wheel.
2) Pull the handle of the knee lever wheel lock up.
The wheel lock bolt releases the wheel.
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21Avantgarde 4
Use
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