SECTION 8—WHEELS
Part No 1134872
51
Crossfire
™
Series Wheelchairs
Determining Toe In/Toe Out
NOTE:
For
this
procedure,
refer
to
FIGURE 8.13.
1. Inflate
all
pneumatic
tires
to
recommended
tire
pressures
(listed
on
the
sidewall
of
the
tire).
2. Measure
the
distance
between
the
centerlines
at
the
rear
and
front
of
the
rear
wheels
at
approximately
12
inches
from
the
ground/floor
(FIGURE 8.13).
NOTE:
For
optimum
accuracy,
perform
STEP
2
with
the
wheelchair
occupied.
3. Determine
difference
between
two
measurements.
If
difference
between
the
two
measurements
is
greater
than
½
‐
inch
(0
+
¼
‐
inch
for
maximum
rollability),
one
of
two
conditions
exists:
• If
the
back
centerline
measurement
of
the
rear
wheels
is
SMALLER
than
the
front
centerline
measurement
of
the
rear
wheels,
a
TOE
‐
OUT
condition
exists
(FIGURE 8.13).
• If
the
back
centerline
measurement
of
the
rear
wheels
is
LARGER
than
the
front
centerline
measurement
of
the
rear
wheels,
a
TOE
‐
IN
condition
exists
(FIGURE 8.13).
4. If
the
difference
between
the
measurements
is
greater
than
½
‐
inch,
correct
the
toe
‐
in/toe
‐
out
condition.
FIGURE 8.13
Adjusting Wheelbase Length (Adjusting Center of Gravity) - Measuring
Centerlines of Rear Wheels
Front of Wheelchair
12-inches
Rear of
Wheelchair
Centerlines of Rear Wheels
Front of Wheelchair
Top View of Wheelchair
Smaller than
Front
Larger than Front
Toe-out
Toe-in
Top View of Wheelchair
