11 WHEELS
Part No 1167484
67
Invacare
®
Crossfire™T7A Wheelchair
11.7 Adjusting Wheelbase Length, Adjusting Center of Gravity (COG)
1.
Refer to the chart below to determine the adjustments necessary
to achieve the desired wheelbase length.
FIGURE
6
Adjusting Wheelbase Length, Adjusting Center of
Gravity (COG)
WARNING
ALWAYS perform this procedure in the presence of an assistant. The position of the footrest, camber tube, seat angle,
back angle, the tautness of the back upholstery as well as the user's condition are directly related to the wheelchairs
stability. Any change to one or any combination of the six may cause the wheelchair to decrease in stability. Use EXTREME
caution when using a new seating position. The addition of anti-tippers may be required.
Measure the distance between the center of the
front caster and the center of the rear wheel to
determine the new wheelbase length.
The wheelbase length can be adjusted in one or
more of the following combinations:
• Repositioning the camber tube clamps.
• Repositioning the camber tube clamps socket
screws.
• Reversing the camber tube clamps direction
CAUTION
Ensure one empty mounting position remains
between the two socket screws, otherwise
damage to the wheelchair may occur.
Rear Wheel
3¼-inches of
Wheelbase
Length
Adjustment
Wheelbase Length
Front
Caster
