Driving Function; Brake Release - Otto Bock B 500 Bedienungsanleitung

11.2 Driving function

When turning on the wheelchair, it will be set at the speed level last used prior to turning it off. The speed level
can be increased with key 4 and can be decreased with key 5. The joystick (7) is used for driving. The further
the joystick is moved away from the mid-position, the faster the B 500/B 500-S will drive in that direction. The
maximum speed with full deflection of the joystick depends on the selected speed level. The speed, acceleration
and deceleration settings can be adapted by the dealer to meet the user's individual requirements. Letting
go of the joystick automatically activates the brake function, which brings the chair to a halt. At standstill, the
mechanical brakes are automatically active so the B 500/B 500-S cannot roll. When nobody is in the wheelchair
or when the driving function is not required, the control should be turned off to prevent uncontrolled driving due
to accidental operation of the joystick.

11.3 Brake release

In case of failure of the control unit or insufficient battery capacity, it is possible to move the B 500/B 500-S by
pushing it manually. For this, the brake is unlocked by means of the mechanical release mechanism. The latter
is located either on the right or left side (as initially selected by the user) of the wheelchair between the frame
and seat. For safety reasons, the release bolt must be pulled up before releasing the brake mechanically (see
Fig. 13).
Note!
The brake should be engaged upon failure of the control unit or insufficient battery capacity! In the
case that the brake is already released at this stage, please contact your authorized dealer.
Note!
Repairs and adjustments on the brake may only be carried out by qualified technicians.
Fig. 13: Lifting the brake release bolt
The brake release lever (see Fig. 14) is then pushed forward until it snaps into place. The control recognizes the
released brake and deactivates the driving function.
Note!
After turning the brake release lever into the pushing position, all brake systems are deactivated.
To reactivate the brake, pull the lever upwards until the release bolt engages. To reactivate the driving function,
the control must be turned off and then on again.
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Fig.14: Brake release lever