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22 www.pridemobility.com Quantum 1103 Ultra
IV. ASSEMBLY
Seat Installation
It may be necessary to install the seat either prior to initial oper-
ation or after transporting your power chair. Most seats are
attached to the power base with the Universal Mounting System
(UMS). The UMS consists of universal parts that may be
attached to any medium-back or high-back seat, regardless of
seat width or seat depth. The two main components are alumi-
num extrusions mounted to the seat base. These extrusions
attach to the power seat frame (see figure 11) or to a pair of
trapeze bars that are mounted to the power base (see figure 12).
NOTE: If your power chair is equipped with a Synergy Seat
or a TRU-Balance Power Positioning System, refer to the
information provided in separate manuals.
WARNING! Do not pick up the seat frame by the
armrests. They are free to pivot, and you may
lose control of the seat if they do so.
To install the seat:
1. Raise the power elevating seat actuator up 2 in. (5 cm) to
allow for sufficient clearance.
2. Tilt the seat back and slide the rear extrusion onto the power
seat frame or rear trapeze bar.
3. Lower the front extrusion onto the power seat frame or front
trapeze bar until the seat locks into place.
4. Flip the seat latch safety down. See figure 11.
WARNING! Make sure the seat latch safety is
flipped down before using your power chair.
5. Install the controller into one of the armrests. See V. “Com-
fort Adjustments”.
6. Loosen the rear shroud fasteners and remove the rear
shroud.
7. Route the controller connector to the back of the power base
and secure the controller harness to the armrest receiver
with wire ties. See figure 13 or 14.
MANDATORY! Prevent controller harness
damage! Avoid routing the controller harness
on the outside of the armrest pad. Route the
harness under the armrest or toward the inside
of the armrest pad. Use correct tie-down points
for the controller harness to prevent the
harness from getting caught in the drive tires,
pinched in the seat frame, or damaged when
passing through doorways.
8. Plug the controller connectors into the power module and
connect the battery connector. See figure 7.
9. Reinstall the rear shroud and tighten the fasteners.
Figure 12. UMS – Optional Seating System
Figure 11. UMS – Power Elevating Seat System
FRICTION LOCK
LEVER
SEAT LATCH
SAFETY
POWER SEAT FRAME
FRONT TRAPEZE BAR
FRONT EXTRUSION
REAR EXTRUSION
REAR TRAPEZE
BAR