Operating instructions NJ1 & FREAK Compact bike
26
4. Check by measuring the distance between
the running wheels at the front and back
again at the axle height (along the
markers) so that the distance between the
running wheels at the front than at the
back is no more than 5 mm.
Figure 53: Distance between the markers on the
tyres (at axle height), back
5. If all the distances are correct, then use an
open-ended spanner (AF 24 mm) to hold
the running wheel bushing in position and
tighten the aluminium locking nut (AF 41
mm) with a tightening torque of 70
Nm.
22 Adaptation and decoupling the
drive unit
22.1 Safety instructions
The drive unit may only be adapted and
detached on dry, stable and flat surfaces.
22.2 Terminology
The product comprises drive unit and product
frame. The product frame is also designated as
chassis. The insertion shaft is located on the
adapter plate of the chassis.
Figure 54: Insertion shaft on the chassis adapter
plate
The insertion maul – the counter item for the
insertion shaft – is located on the adapter plate
of the drive unit.
Figure 55: Insertion maul of the drive unit adapter
plate
22.3 Adapting the drive unit
For adapting the drive unit to the chassis, first
operate the parking brake. Hang the insertion
maul of the drive unit adapter plate to the
insertion shaft of the chassis adapter plate. In
doing so, the drive shaft must be raised a little
to allow the insertion maul of the drive unit to
slip under the insertion shaft on the chassis.
Insertion shaft
on the chassis
adapter plate
Insertion maul of the
drive unit adapter plate
Distance
Markings
