Part No. 1054916 47 T-3™ and T-4™ Series
WHEELS
FRONT CASTER REPLACEMENT (FIGURE 17)
1. Remove the bolt and locknut that secure
the front caster to the mounting fork.
2. Remove the front caster and axle spacers
from the mounting fork.
3. Install the NEW front caster and spacers
onto the mounting fork and securely
tighten.
4. Repeat the procedure for the opposite
front caster if necessary.
NOTE: If replacing front casters with a different size
than what was originally on the chair, the front caster
height MUST be adjusted to keep the chair frame
parallel to the floor. Refer to ADJUSTING FRONT
CASTER HEIGHT in this procedure of the manual.

FIGURE 17 - FRONT CASTER

REPLACEMENT
ADJUSTING FRONT CASTER HEIGHT (FIGURE 18)
NOTE: When changing a rear wheel to a different
size, it becomes necessary to adjust the front caster
height so the chair frame will remain parallel to the
floor.
1. Place the wheelchair on a flat surface.
2. Remove the dust cover on the fork
assembly.
3. Remove the locknut that secures the
front caster fork to the chair frame.
4. Position a large right triangle or "L"
square on the flat surface and against the
caster housing that is welded to the chair
frame.
5. Adjust the height of the front casters by either adding or removing spacers on top of the
fork stem until the chair frame is parallel with the floor.
6. Reinstall the locknut and dust cover onto the chair.
NOTE: A 1/4-inch and 1/2-inch spacer are provided, however, it is possible that smaller washers may be
required to fine tune the caster height.
Mounting Fork
Bolt Locknut
Axle
Spacer
Front
Caster
Fork Stem
Spacers
Locknut Caster Housing
"L"
Square

FIGURE 18 - ADJUSTING FRONT

CASTER HEIGHT

PROCEDURE 6 WHEELS
WHEELS