Attention when using 22" and 24" wheels (Fig. 35):
In an extreme case, the static stability can change to: 5.9° to the front, 3.9° to the side and 7.2° to the rear.
The drum brakes are designed to function safely as parking brakes on slopes of up to 8°.
Dependent on the wheelbase, the special rear axle for the mounting of large wheels can lead to restrictions of
the seat inclination range. Values for this are listed in the 'Technical Data' section.
In order to reduce the risk of injury, the spokes of the wheels must not be accessible for the user from the inner
side. Please protect the user accordingly by mounting spoke covers (spoke protectors) or by other measures
(side plates on the seating shell).
12 Maintenance, Cleaning and Care
The correct function of the mobility base with seating shell should be checked before every use. The checks
listed in the following table must be carried out by the user at the indicated intervals. Failure to carry out these
simple checks may lead to problems arising that could invalidate the warranty.
Check
Function test of the brake/wheel lock
Secure lock of the seating system
Firm seat of all wheels
Firm seat of the push handles / pushbar and
firm seat of the rubber grip covers on the push handles
Contamination on bearings
Air pressure (printed on the sidewall of the tire)
Examination of screw connections
Visual examination of wearing parts (e.g. tires, bearings)
Check spoke tension if 22" or 24" wheels are used
Should any defects become apparent, please contact your authorized dealer. We also recommend that you have
your mobility base with seating shell serviced every twelve months by your authorized dealer.
Figure 37a
Adjustable Brake Force with Rear Wheel with Wheel Lock
A reduction of the distance between the wheel lock bolt (Fig. 37b, item A) and the wheel increases the braking
force; a larger distance decreases the braking force. After loosening the screws on the guide plate (Fig. 37a,
item B) you can move the wheel lock and adjust the distance to the tire. The wheel lock should be mounted so
that when the wheel lock is not activated, the distance between the tire and wheel lock bolt is 10 mm maximum
(when using polyurethane tires) or 5 mm maximum (when using pneumatic tires). After finishing the adjustment,
fix the wheel lock by tightening the screws on the guide plate (Fig. 37a, item B).
Discovery
B
Figure 37b
Maintenance, Cleaning and Care
before each use weekly
X
X
X
X
A
Figure 38
monthly
X
X
B
Ottobock | 35
X
X
X
A