57
TECHNICAL DATA
All data given in the <
Technical data
> refers
to the standard version.
Dimensional tolerance ±15 mm, ± 2°.
Calculation of the max. user weight:
The maximum total load is calculated on
the basis of the unloaded weight of the
electric wheelchair and the maximum
passenger weight.
Additional weight due to subsequent addi-
tions or luggage reduce the maximum per-
missible passenger weight.
Example:
A driver wishes to take luggage with a
weight of 5 kg. Thus, the maximum user
weight is reduced by 5 kg.
Tyre pressure of pneumatic tyres
Maximum tyre pressure is printed on the
tyres on each side.
Full tyre pressure – steering wheel
Standard:
2.5 - 3.5 bar = 36 - 50 psi
Full tyre pressure – drive wheel
Standard:
3.0 - 4.0 bar = 44 - 58 psi
Maximum range
The nominal values indicated by are reason-
able in compliance with ISO 7176-4.
The maximum range depends to a large ex-
tent on the following factors:
–
battery condition,
–
weight of the driver,
–
driving speed,
–
driving style,
–
road surface condition,
–
driving conditions,
–
ambient temperature.
The maximum range is greatly reduced by:
–
frequent driving upwards on ramps,
–
insufficient charging condition of the
drive batteries,
–
low ambient temperature (e.g. in win-
ter)
–
frequent starts and stops (e. g. in shop-
ping malls),
–
aged, sulphated drive batteries,
–
frequently necessary steering manoeu-
vres,
–
reduced driving speed (especially at
walking speed).
In practical use, the maximum range under
'normal conditions' is then reduced to ap-
prox. 80 – 40 % of the nominal value.
