20
HOSS - Owner's Manual
The
Power Wheelchair Braking Systems
The power wheelchair's brake systems allow for smooth start up and safe brak-
ing without undue jerking. There are three (3) separate modes to the braking system:
Regenerative, Dynamic, and Posi-Lock Electric Braking. All braking occurs automatically
during wheelchair operation if the joystick power is "ON". If the joystick power is turned
"OFF", the regenerative braking and dynamic braking are not functional.
WARNING:
Always leave the joystick power "ON" when parked on or attempting to stop on an incline.
Failure to leave the joystick power "ON" could result in partial loss of braking and steering
control causing potential damage to the equipment and/or harm to the rider.
Each type of
braking is described in the following.
1. Regenerative Braking is activated while driving the power wheelchair down an
incline. When the wheelchair picks up speed going down the incline, the motor generates
electricity. This electricity is channeled back through the power wheelchair electronic con-
trol circuits to
recharge the batteries. This action keeps the wheelchair from picking up
excess speed and provides for smooth speed control.
2. Dynamic Braking is activated WITHOUT delay when all power is stopped to the
motor by bringing the control knob back to the center position, as when coming to a com-
plete stop. This braking works until the Posi-Lock Electric brake is activated.
3. Posi-Lock Electric Braking Disk is activated with delay when all power is stopped to the
motor. This electric brake has a short delay and ultimately holds the power wheelchair at a
complete stop. The wheelchair cannot be moved when this brake is activated. Dynamic Braking
works in conjunction with Posi-Lock Electric Braking to bring you to a gradual and complete stop.
MOTOR/BRAKE DISENGAGE MECHANISM
The power wheelchair is equipped with one Mo-
tor/Brake Disengage lever (one for the entire motor). This
systems allows the wheelchair to be moved in the event
the batteries are run low, or there is a malfunction. To
operate the Motor disengage mechanism, turn the power
off to the wheelchair and push the lever completely back-
wards. The motor/brake combination is now disengaged
and the wheelchair will not operate, but will roll freely.
Caution:
DO NOT
ride the power wheelchair with Motor/Brake Disengage Mechanism acti-
vated since there is a
strong possibility
an accident with injuries will occur. Should you
experience any type of brake system malfunction,
DO NOT
ride or sit on the wheelchair.
Have the system repaired immediately!
Disengage Lever
]
