Whirlwind Cargo, Assembly Instructions Manual

Page: 40 / 47

40
Seat Height (for Lower leg length) and Seat Angle
The seat angle can be adjusted by selecting holes for mounting the seat clamp. Some factors to
consider when selecting seat angle, seat height, and seat position front/back include the following:
•
Comfort and safety of seating position (refer to WHO Wheelchair Provision materials for
more information)
• Height of front of seat/cushion from the footrest to support riders’ feet and legs
•
Distance from the backrest support to the cranks (also affected by TAB adjustment and
backrest angle relative to seat.
•
Note that as the seat angle is adjusted, the backrest angle changes with the seat.
•
Example: To achieve a 90-90-90 seating position (the most upright backrest angle is
approximately 86 degrees from the seat)the seat angle might be set at 12 degrees, with the
backrest in the most upright position with the top straps loosened to create a 90 degree
seating angle with lumbar support. The Front Seat Rail Guide will be positioned 2 holes
higher than the Rear Seat Clamp. The particular configuration shown in the photo will give a
seat height (from the floor to the top of the integrated cushion) of 46cm.