Invacare CT7A user manual Adjusting Wheelbase Length, Adjusting Center of Gravity COG

11 WHEELS

11.7 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

1.Refer to the chart below to determine the adjustments necessary to achieve the desired wheelbase length.

￿ 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

Front
	Wheelbase Length
Caster

FIGURE 6 Adjusting Wheelbase Length, Adjusting Center of

Gravity (COG)

Part No 1167484 67 Invacare® Crossfire™T7A Wheelchair