Martin Innovations
23
13 Front Caster Wheels
13.1 Installation and Removal
NOTE: If replacing the wheels with a different size wheel, adjustments are
necessary to the floor-to-seat height. To do this professional help is
needed.
NOTE: Only if you are replacing front caster wheel with the exact same size
front caster can this procedure be used.
1) Remove the locknut and washer
that secures the fork to the
caster head-tube.
2) Drop the front caster and fork
out of the caster head-tube.
3) Slide in the new caster and fork.
4) Reassembly is done by
reversing STEPS 1-2.
5) Repeat STEPS 1-4 for the
opposite front caster.
6) To tighten caster system and
guard against wheel flutter,
perform the following:
A. Tip the wheelchair back and
rest it on floor.
B. Simultaneously pivot both forks
& casters to the top of their arc.
C. Let the casters drop to the
bottom of their arc (wheels will
swing once from side to side
and rest in a position straight
down).
D. Adjust locknuts according to
freedom of caster position.
