56
TECHNICAL DATA
All the information in the ‘
Technical data
’
chapter applies to the standard model.
Measurement tolerances ±15 mm, ± 2°
Calculating the max. allowable user weight:
The overall load capacity can be calcu-
lated by adding the weight of the empty
electric wheelchair to the max. allowable
user weight.
Added weight due to aftermarket parts or
baggage lowers the max. allowable user
weight.
Example:
A user wants to take along baggage weigh-
ing 5 kg. This reduces the max. allowable
user weight by 5 kg.
Air pressure for pneumatic tyres
The max. air pressure is listed on both sides
of the tyre.
Air pressure - swivel castor
Standard:
2.0 bars = 29 psi
Air pressure - drive wheel
Standard:
3.0–4.0 bars = 44–58 psi
Operating range
Our indicated nominal data are realistic,
provided that ISO 7176-4 is fully complied
with.
The operating range largely depends on
the following factors:
–
Condition of the battery
–
User weight
–
Driving speed
–
Driving behaviour
–
Road condition
–
Driving conditions
–
Ambient temperature
The operating range is severely limited by:
–
Frequent driving up ramps
–
Batteries with deficient charging ca-
pacity
–
Low ambient temperatures (e.g. in win-
ter)
–
Frequent starting and stopping (e.g. in
shopping centres)
–
Ageing sulphated batteries
–
Sudden forced steering manoeuvres
–
Reduced driving speed (especially at
pedestrian speeds)
In practice, the operating range that usually
can be achieved under normal conditions is
typically reduced by 40–80% relative to the
nominal value.
Driving characteristics when negotiat-
ing gradients
For safety reasons, the wheelchair should
only be operated without a driver on up-
ward or downward slopes exceeding the
allowable limits (e.g. on ramps)!
MDR,
not
final
version
