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3. Safety instructions and hazard information on driving with the twion
3.1 General information
Using the twion wheels is much the same as using the manual wheels you have been
using. This means that you can move your wheelchair as normal with the push rims [4].
While the twion is switched on, each actuation of the push rims is converted into a drive
command. The twion thereby supports both forwards and reverse movement and when
accelerating and braking.
It is therefore recommended that you have a short driver training session when you first
receive your twion. This enables you to become familiar with the drive and all its possib-
ilities.
The twion wheels could also be used as manual push rim wheels when switched off. Only
the additional weight of the wheels needs to be considered when starting off and brak-
ing.
Check that the hand brake [8] of your wheelchair has been
adjusted to the twion wheels
and
therefore inadvertent rolling away is pre-
vented. If this is not the case, please contact your Alber authorised specialist dealer and have the brakes readjusted.
Information on driving training
•
Start your first driving attempts with caution and start your driving training on level ground.
•
Take your driver training in areas without obstacles.
•
Before using the twion to drive up or down a slope, practice operating the device on level ground.
•
Always adapt your speed to external conditions to be able, for example, to drive around any obstacles that suddenly appear or to stop
your wheelchair.
•
Always drive up slopes with a fully charged battery.
If the battery is empty the wheels will continue to work, however, the rolling motion and especially the braking process is no longer
supported!
•
When travelling down slopes of any kind, special caution should be exercised.
If driving down slopes with a fully charged battery and at high speed, this can lead to the twion being forced to shut down due to over-
voltage. The wheels continue to work but there is no longer any power support for braking.
Therefore, drive down slopes at slow speed. This is advisable in any case to avoid any obstacles that suddenly appear or to stop the
wheelchair.
•
Observe the information, safety instructions and hazard information of your wheelchair manufacturer. This also applies to driving with
the twion.
Exercise caution when travelling downhill with a fully charged battery.
A fully charged battery and high speeds may lead to the system automatically switching off. Therefore, reduce
your speed.
As far as possible, negotiate obstacles (e.g. kerbs) in reverse. The maximum permitted obstacle height is 50 mm.
Caution: when negotiating obstacles in reverse, the Alber anti-tippers cannot be guaranteed to be fully func-
tional. For this reason, drive slowly and carefully in reverse until the wheels of your twion touch the obstacle.
Now carefully negotiate the obstacle. It is up to you to decide whether to enlist the help of another person.
Observe the following safety instructions and hazard information.
Immediately contact your specialist dealer in the event of a breakdown.
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