31
R.
Wheel
Locks
Catalyst
wheelchairs
are
shipped
with
one
of
several
different
types
of
wheel
locks
pre
‐
installed.
Push
to
Lock
Pull
to
Lock
Push
to
Lock
(flush
mount)
Short
thro
Scissor
The
clamp
assembly
works
the
same
for
all
wheel
locks.
a)
Using
a
4.5
mm
Allen
wrench,
turn
one
of
the
screws
in
the
clamp
until
it
runs
easily
(less
than
one
turn).
b)
Repeat
the
same
process
with
the
second
of
the
two
screws
so
the
clamp
can
be
adjusted
on
the
frame.
c)
Adjust
the
clamp
toward
the
rear
wheel
so,
when
engaged,
the
wheel
lock
compresses
the
tire
and
prevents
any
wheel
movement.
(Fig.
20)
d)
Make
sure
wheel
lock
arms
embed
in
tires
at
least
1/8
inch
when
locked.
If
you
fail
to
do
so,
the
locks
may
not
work.
(See
Fig.
21)
e)
Retighten
the
screws.
Wheel
lock
clamps
require
a
torque
setting
of
100
in./lbs.
Rear
wheel
locks
are
NOT
designed
to
slow
or
stop
a
moving
wheelchair.
Use
them
only
to
keep
the
rear
wheels
from
rolling
when
your
chair
is
at
a
complete
stop.
NEVER
use
rear
wheel
locks
to
try
to
slow
or
stop
your
chair
when
it
is
moving.
Doing
so
may
cause
you
to
veer
out
of
control.
To
keep
the
rear
wheels
from
rolling,
always
set
both
rear
wheel
locks
when
you
transfer
to
or
from
your
chair.
Low
pressure
in
a
rear
tire
may
cause
the
wheel
lock
on
that
side
to
slip
and
may
allow
the
wheel
to
turn
when
you
do
not
expect
it.
Make
sure
lock
arms
embed
in
tires
at
least
1/8
inch
when
locked.
If
you
fail
to
do
so,
the
locks
may
not
work.
V.
SET
UP
&
USE
OF
YOUR
WHEELCHAIR
DANGER:
Failure
to
read
or
comply
with
these
instructions
may
result
in
a
fall
or
loss
of
control
causing
severe
injury
to
the
user
or
others.
Fig.
20
Fig.
21
32
V.
SET
UP
&
USE
OF
YOUR
WHEELCHAIR
S.
Caster
Forks
(Fig.
22)
The
caster
forks
allow
the
interchanging
of
casters
and
the
adjusting
of
the
front
seat
height.
To
adjust:
a)
Loosen
the
axle
nut
and
remove
the
axle.
b)
You
can
reposition
the
axle
and
caster
up
or
down
in
1/2”
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
seat
height:
1”
taller
caster
size
adjusts
up
1
hole
position.)
If
you
have
changed
your
front
seat
height
you
should
square
the
caster
housing.
(See
Below)
T.
Caster
Angle
Adjustment
(Fig.
23)
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.
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.
Fig.
22
Fig.
23
Summary of Contents for 5 TTL
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