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When travelling on public roads and pavements in the Federal Republic of Germany, the provisions of the German Road Traffic Regula-
tions and the Road Traffic Licensing Regulation must be observed. In other countries, the national provisions applicable there must be
observed.
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The twion is only intended for transporting persons with restricted mobility and must not be misused, for example by children playing
with it or to transport goods.
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Operating the twion in the vicinity of strong magnet fields such as those induced by holding solenoids, transformers, tomographs etc. is
prohibited.
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Avoid travelling using the twion in adverse conditions, for example in storms, hail and in high undergrowth.
After using the twion, observe the following:
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When not in use, the twion must be switched off to prevent inadvertently triggering of drive pulses when the push rims are touched and
to prevent the battery from discharging completely.
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Whenever the wheelchair is idle, activate the parking brakes.
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Recharge the battery of your twion as soon as possible after each trip.
3.3 Obstacles
As far as possible, only 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 functional. For this reason, drive
slowly and carefully in reverse until the twion wheels touch the obstacle. Now carefully negotiate the obstacle. It is up to you to decide
whether to enlist the help of another person.
3.4 Danger areas and hazardous situations
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The wheelchair driver must decide in each case whether it is safe to use the twion for the intended trip based on factors such as driving
experience and physical strength.
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Before undertaking a trip, check the twion wheels for damage and proper inflation. Also, check the charge status of the two batteries
and that the visual and acoustic signalling devices on the wheel are working correctly.
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These safety checks and the personal experience of the wheelchair user are of particular importance in or near the following danger
areas, the navigation of which is left to the judgement and risk of the twion driver:
– Quay walls, berths and marinas, paths and areas near water, bridges and dykes without railings.
– Narrow footpaths, steep slopes (e.g. ramps and driveways), narrow paths along slopes, mountain paths.
– Narrow and/or steep/inclined paths along main and side roads or near precipices.
– Paths covered with leaves, snow or ice.
– Ramps and lifting platforms of vehicles.
When driving along bends, turning the wheelchair or driving uphill or downhill, the centre of gravity of the
wheelchair may be shifted so that there is a risk that the wheelchair may tip over to the side. Therefore, proceed
with extreme caution and reduce the speed of the add-on drive.
Special caution is required when crossing roads and at crossroads and level railway crossings. Never cross rail
tracks in roads or at level crossings by driving parallel to them as the wheels could get stuck in the rails.
Proceed with special caution when driving over ramps or lifting platforms of vehicles. Before lifting or lowering
the wheelchair on the ramp or lifting platform, switch off the twion. Also apply the wheelchair parking brakes.
This prevents inadvertent movement or drive commands.
If the ground is wet, tyre grip may be poor so that there is a risk of slipping. Adapt your driving behaviour accor-
dingly and never drive with worn tyres.
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