Caster Wheels And Caster Forks; Approach In Case Of Stiffness; Wheel Locks; Using The Wheel Locks - Otto Bock Zenit Instructions For Use Manual

7.9 Caster wheels and caster forks

WARNING
Failure of caster wheels or caster forks
Falling, severe injury due to the wheelchair tipping over
► Regularly inspect the caster wheels and caster forks for damage.
► Regularly clean and oil the caster wheel axles and the threaded axles on the caster forks, especially in case of
stiffness.
► Inform the responsible qualified personnel in case of permanent changes to the driving characteristics.
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
user.

7.9.1 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).

7.10 Wheel locks

The wheel locks secure the parked wheelchair against rolling away.

7.10.1 Using the wheel locks

WARNING
Improper use of the wheel lock
Falls due to abrupt braking, rolling away of the product, crushing of hands
► Do not use the wheel lock as a driving brake.
► Always engage the wheel lock on both sides.
► Engage the wheel lock to prevent the product from moving when it is parked 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 product.
► Ensure that the knee lever wheel lock is properly adjusted (max. 5 mm gap to the tyre). The lock bolt must
lock the drive wheel securely when stationary.
► 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. 25).
→ The wheel lock bolt secures the wheel.
2) Pull the handle of the knee lever wheel lock up (see fig. 26).
→ The wheel lock bolt releases the wheel.
Zenit
Use
23