Wheel Camber, Setting the Toe to Zero 30 31

E N G L I S H

c.Reposition Seat Sling Tube- GTX Swing Away and Fixed Front 27

After making Secondary Center of Gravity adjustment the seat sling tube will need to be reposi- tioned. Loosen the four nuts (A) (2 per side) that hold the seat sling tube to the cross brace assembly. Slide the seat sling tube either fore or aft to make the seat sling tube even with the rear frame tube. Tighten the four nuts (A) (2 per side) that hold the seat sling tube to the cross brace assembly, 88in-lbs. (10Nm). Ensure front seat sling tube position screw (B) lines up with slot in saddle. Check both side of seat sling for proper fit, readjust if necessary.

4.Wheel Camber 28

Wheel camber, shown as angular relationship (H), provides greater side-to-side stability due to the increased width and angle of the wheelbase. It also allows for quicker turning and greater access to the top of the handrims.

Wheel camber is determined by pairs of interchangeable camber plugs which are available from your authorized supplier in 0º, 2°, and 4º angles.

5. Setting Toe-in Toe-out to Zero 29 30 31 32

NOTE– A wheelchair equipped with 0° camber plugs cannot have a toe-in toe-out condition. This adjustment is only required when using 2° and 4° camber plugs.

Toe refers to how well the rear wheels of the chair are aligned relative to the ground 29 . It affects how well the chair will roll. Drag or rolling resistance is optimally minimized when the wheel toe is set to zero.

Setting the Toe to Zero 30 31 32

Safely place the entire wheelchair on a flat horizontal table or ground surface. Starting on one side, remove rear wheel, and loosen the 2 screws (A) that secure the camber tube clamp. Locate the flat sur- faces on the front and rear of the camber plugs (D). Place an object that is known to have an accurate 90° corner (such as a carpenters square, drafting triangle, etc.) down on the flat horizontal surface and up against the flat of the camber plug. Rotate the camber tube and plug assembly until the flat surface of the camber plug is parallel to the vertical edge of the measuring tool.

Once square, tighten screws (A), and place rear wheel securely back in place. Repeat process for opposite side.

Before tightening the screws (A), make certain that the camber tube is centered left-to-right relative to the wheelchair frame. There should be an equal gap on both sides of the wheelchair (see section P: Rear Wheel Spacing).

Tighten the fasteners to 144 in-lbs. (16.3 Nm).

H	28
	29

Toe in

Toe out

parallel	32
parallel
	C
D

052124 Rev. D	18