NJ1 el. & FREAK el. compact bike usage instructions
13
be crossed when travelling parallel to them, as
otherwise the wheels could become caught
which would result in the product being unable
to manoeuvre.
Before driving on ramps and lifting
equipment for vehicles, ensure that they are
wide enough so that you do not risk one of the
product wheels slipping off the ramp. During
the lifting or lowering operation of the ramp or
the lifting equipment, the drive system must be
switched off and the service brake of the prod-
uct must be actuated. Always keep the product
in the middle of the ramp.
The grip of the tyres on the ground is
reduced under wet conditions. There is an
increased risk of slipping. Adjust your driving,
braking and steering behaviour accordingly.
16 Safety instructions – after driv-
ing/use
Always turn off the drive system immedi-
ately when it is not in use to prevent accidental
triggering of a drive signal by touching the
crank handle and to prevent the rechargeable
batteries being discharged.
Always observe the usage instructions
and recommendations in the drive manufactur-
er's usage instructions concerning charging the
rechargeable batteries.
17 Functional elements
17.1 Bottom bracket support and crank
The following instructions are intended
for and may only be carried out by a rehabilita-
tion specialist dealer or PRO ACTIV
17.1.1 Seating position
The seating position and therefore the pedal
position and the crank length depend on the
upper-body stability or the core musculature as
well as the body size. A suitable adjustment
will have been made during the consultation /
measurement procedure.
The
bottom bracket position should be se-
lected as low as possible
without the cranks
being able to touch the user's thighs when they
are turning. Moreover, the elbows should not
be completely extended when the crank han-
dles point completely forward away from the
body and the shoulders should rest against the
backrest.
With
weak core musculature
, the seating
position and the crank length should normally
be chosen so that the upper body remains still
and always has a fixed contact with the
backrest when operating the crank while driv-
ing. Rocking motion of the upper body or the
head should be avoided where possible. For
this, the correct setting of the backrest (see
chapter 18) and the correct choice of the crank
length as well as the pedal position is decisive.
If necessary, you should also use a hip strap or
chest strap for stabilising.
Figure 3: Elbows are not stretched completely
Figure 4: Distance between the crank and the thigh
