18 BOSS 4.5, RF, P3 & P4 OWNERS MANUAL
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, 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 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 Motor/Brake Disengage
lever(s). 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 levers by the decals located near the lever(s) as shown.
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!
Braking Systems
Boss 4.5 Single Disengage Lever
Scout RF-P3 & P4 Two Disengage Levers
BRAKES RELEASED
BRAKES LOCKED
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