SECTION 7—REAR FRAME
49
3.
Perform one of the following to compress the rear springs:
•
Block Method - Lift the rear frame assembly up and add spacers under the rear casters until the rear springs remains
compressed and the nylon spacer can be installed.
•
Clamp Method - Use a vise-clamp or c-clamp to compress springs until the nylon spacer can be installed.
4.
Using the two 1/4-20 X 5/8-inch mounting screws and nylon spacer, secure the rear frame assembly to the wheelchair
frame. Torque to 75 in-lbs ± 20%.
5.
Connect the right and left motor leads and the joystick cable to the controller.
NOTE: When Securing the wiring, ensure motor leeds have enough slack to allow full motion of the walking beam and that all wiring
will not become pinched or damaged by moving parts.
6.
Using tie-wraps, secure wiring and cables to rear frame.
7.
Remove the 5-inch blocks supporting the wheelchair frame.
8.
Install the two rubber end caps.
9.
Adjust the stability lock setting. Refer to Adjusting the Stability Lock Setting on page 53.
10. Install the rear shroud. Refer to Adjusting the Formula CG Seating System Mounting Position on page 58.
FIGURE 7.1
Removing/Installing the Rear Suspension Assembly
Rear Suspension
Assembly
Wheelchair Frame
1/2-13 X 1.0-inch
Mounting Screws
Rear Pivot
Bushings
1/4-20 X 5/8-inch
Mounting Screws
Nylon Spacer
Mounting Brackets
NOTE: Tie-wraps and wiring not shown.
Pivot Tube
Pivot Bar
Center Bushing Assembly
Rear Swingarms
Rear Pivot
Bushings
1/2-13 X 1.0-inch
Mounting Screws
Rear Pivot
Bushings
1/2-13 X 1.0-inch
Mounting Screws
NOTE: Rear suspension frame shown disassembled for clarity.