V. SET UP & USE OF YOUR WHEELCHAIR
N. Front Seat Height Adjustments
1. Caster Fork Adjustment
NOTE: By changing the front seat height, the back angle and chair dump are affected. These
should be checked after making this adjustment.
The front seat height can be adjusted in ½" increments by repositioning the caster wheel within
the fork.
a. Using two 4mm hex (Allen) wrenches, turn the button head cap screws (Fig. 18:A) counter-
clockwise until one of the button heads detaches from the internally threaded axle.
b. Remove the remaining cap screw/axle (Fig. 18:B) from the caster assembly. Be sure to
catch the caster spacers (Fig. 18:D) if they fall out.
c. Move the caster (Fig. 18:C) and spacers (Fig. 18:D) to the desired hole in the fork. Reinsert
the cap screw/axle (Fig. 18:B). Reinstall the second button head cap screw (Fig. 18:A) and
tighten to 80 in./lbs.
d. Resquare caster wheels as noted in Section P. Caster Angle Adjustment.
WARNING: Changing the seat height may decrease stability of the chair. Always make
adjustments in small increments and check the stability of your chair with a spotter to prevent a
tip-over. We recommend that you use anti-tip tubes.
DANGER: Failure to heed these warnings may cause serious injury or death.
B
C
D
A
D
29
Fig. 18