V. SET UP & USE OF YOUR WHEELCHAIR
U. Catalyst 4 & 4C
1. Rear Seat Height Adjustment (Fig. 35)
Rear seat height can be adjusted by moving the axle plate vertically in the predrilled holes in the
frame.
a. Remove the two hex headed bolts using a 10mm wrench.
b. Reposition the axle plate up or down in 1" increments depending on the change you wish to
make. This adjustment allows for a total vertical seat height adjustment range of 5".
NOTE: A front caster adjustment should be made to correspond with any change in seat height.
See Section Z. Caster Forks.
Fig. 35
35