21
The Power Wheelchair Braking Systems
The power wheelchair's brake systems allow for smooth start up and safe braking without
undue jerking. There are three (3) separate modes to the braking system: Regenerative, Dy-
namic, 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 control 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
complete 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 Motor/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 backwards. 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 activated
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!
SHOULD THE BRAKE DISENGAGE ON A WHEELCHAIR EVER APPEAR TO WORK
POORLY OR INCORRECTLY, STOP RIDING IMMEDIATELY AND CONTACT YOUR
DEALER FOR SERVICE!
Summary of Contents for Boss
Page 37: ...37 ...
