V. SET UP & USE OF YOUR WHEELCHAIR
Z. Caster Forks
The caster forks allow the interchanging of casters and the adjusting of the front seat height (Fig.
42).
To adjust:
a. Loose the axle nut and remove the axle.
b. You can reposition the axle and caster up or down in ½" increments
to change the front seat height.
c. Replace axle and tighten nut.
If a different caster is desired, determine the difference in height between
the new and old caster (to maintain the seat height: 1" taller caster size
adjusts up one hole position).
If you have changed your front seat height you should square the caster
housing (see below).
AA. Caster Angle Adjustment
Standard Caster Housing
The caster housing should always be at a 90° angle to the floor (perpendicular to the ground). This
is adjusted using a special fastener and an eccentric nut (Fig. 43).
a. To change the angle of the caster housing, it is best to place
the chair on a flat surface.
b. Remove the bolt from the inside of the frame.
c. Place a square against the table and the front of the caster
housing to realign the housing.
d. Push the bolts back through the frame.
e. Rotate the eccentric nuts independently until they fit both on
the bolt and within the slot of the caster housing.
f. Retighten the two bolts slowly ensuring the housing remains
square.
g. Repeat the process for the other caster.
Performance Caster Housing
The caster barrel should always be at a 90° angle to the floor
(perpendicular to the ground).
a. Pull tab on caster housing slightly outward and remove pro-
tective cover (Fig. 43:A) by lifting straight up.
b. Locate the two socket head screws (Fig. 43:D). Using a
5mm Allen key, loosen each screw two complete turns.
c. Locate the Adjustment Screw (Fig. 43:B). Using a 5mm Allen
key, turn clockwise to move caster fork forward or counter-
clockwise to move caster forks rearward in order to achieve
90° angle to the floor.
d. Using a square against the caster barrel (Fig. 43:C), check to
make sure casters are positioned perpendicular to the
ground. Once achieved, retighten socket head bolts (Fig.
43:D) until secure.
e. Replace protective cover (Fig. 43:A). Repeat steps on opposite side.
39
Fig. 42
Fig. 43
Standard
D
Performance
A
B
C