Filter
Top Products
Quantum 1122 Series www.quantumrehab.com 19
III. YOUR POWER CHAIR
Active-Trac Suspension
Your power chair 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.
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 power chair over an obstacle and limits
the possibility of your power chair getting caught 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.
Rear Suspension
Your power chair is equipped with a rear suspension system. See figure 7. This suspension system works in conjunction
with the ATS and is designed to maintain a smooth ride when driving over rough terrain and up and down curbs. This
system works by allowing the caster forks to respond to weight transfers and uneven terrain. The rear caster wheels will
pivot as you drive over obstacles. This system also enhances performance when the front anti-tip wheels are set lower to
the surface.
Figure 7. Rear Suspension System
REAR CASTER WHEEL
REAR CASTER FORK
REAR CASTER FORK
REAR CASTER WHEEL