Quantum 1121 3MP, 1121 3SP manual Electronics Tray, Active-Trac Suspension

I I I . Y O U R P O W E R C H A I R

ELECTRONICS TRAY REAR SEAT TOWERS

FRONT SEAT TOWERS

POWER MODULE (LOCATED

UNDER ELECTRONICS TRAY)

FREEWHEEL LEVER

MOTOR/BRAKE ASSEMBLY

Figure 6. The Quantum 1121 Series Power Base

Electronics Tray

The electronics tray is located on the back of the power base. See figure 6.

Main Circuit Breaker: The main circuit breaker is a safety feature built into your power chair. When the batteries and the motors are heavily strained (e.g., from excessive loads), the main circuit breaker trips to prevent damage to the motors and the electronics. If the circuit trips, allow your power chair to “rest” for approximately one minute. Next, push in the circuit breaker button, turn on the controller, and continue normal operation. If the main circuit breaker continues to trip repeatedly, contact your Quantum Rehab Provider.

Controller Connector: This is where the controller connects to the power module. Each controller uses a differ- ent type of harness. Regardless of which type of controller is used, the harness must be secured to the seat assem- bly and not allowed to drag on the floor.

Active-Trac Suspension

The Quantum 1121 is equipped with Active-Trac Suspension (ATS). ATS is a suspension system designed to make your power chair traverse different types of terrain and obstacles while maintaining smooth operation. With ATS, the front anti-tip wheels work in conjunction with the motor suspension to help you maneuver over obstacles in excess of 3 in. (7.62 cm) in height.

As the front anti-tip wheels come in contact with an obstacle, the front anti-tip wheel assembly is drawn upward. At the same time, the motors are forced downward. This allows the motors to push the your power chair over an obstacle without the possibility of becoming “hung up” on the obstacle.

ATS also helps in day-to-day operating conditions. For instance, when you release the joystick, your power chair begins to slow down. As the chair slows down, the front anti-tip wheels will automatically drop toward the ground. This will reduce the forward tip that is typically encountered with center-wheel drive chairs.

16 www.pridemobility.com Quantum 1121 Series