SECTION 9—WHEELS
Part No 1134343
49
Crossfire
™
T6A Wheelchair
Repairing/Replacing Rear Wheel, Tire/Tube
WARNING
Replacement of the tire or tube MUST be performed by a qualified technician.
CAUTION
Changing the size of the rear wheels can affect the performance of the wheelchair.
Contact Invacare at the numbers on the back cover BEFORE performing this proce-
dure.
NOTE:
If
replacing
rear
wheels
with
a
different
size
than
what
was
originally
on
the
wheelchair,
the
front
caster
height
and/or
diameter
MUST
also
be
changed
to
keep
the
wheelchair
frame
parallel
to
the
floor.
Refer
to
Removing/Installing/Repositioning
the
Caster
Assemblies
on
page 58
ONLY
after
contacting
Invacare.
Anti
‐
tipper
height
(if
applicable)
MUST
also
be
adjusted
to
maintain
1
‐
1/2
to
2
‐
inch
clearance
between
bottom
of
the
anti
‐
tipper
wheels
and
the
floor.
Refer
to
Adjusting/Replacing
Anti
‐
tipper
on
page 62.
Adjusting Wheelbase Length, Adjusting Center of
Gravity (COG)
WARNING
ALWAYS perform this procedure in the presence of an assistant. The position of
the footrest, camber tube, seat angle, back angle, the tautness of the back uphol-
stery as well as the user's condition are directly related to the wheelchairs stability.
Any change to one or any combination of the six may cause the wheelchair to
decrease in stability. Use EXTREME caution when using a new seating position. The
addition of anti-tippers may be required.
NOTE:
For
this
procedure,
refer
to
FIGURE 9.6
on
page 50.
NOTE:
Measure
the
distance
between
the
center
of
the
front
caster
and
the
center
of
the
rear
wheel
to
determine
the
new
wheelbase
length.
NOTE:
The
wheelbase
length
can
be
adjusted
in
one
or
more
of
the
following
combinations:
• Repositioning
the
camber
tube
clamps.
• Repositioning
the
camber
tube
clamps
socket
screws.
• Reversing
the
camber
tube
clamps
direction
1. Refer
to
the
chart
below
to
determine
the
adjustments
necessary
to
achieve
the
desired
wheelbase
length.
