Rear
Seat
Height
The rear seat height can be adjusted to various
positions.
By modifying
the
Rear Axle
I
Camber
Plate,
the angle of the sea
t
bucket
can be ad-
justed to increase or decrease the amount of
pressure
on the back bone.
On
the
Boing
!
an
additional adjustment can be
made
to the rear
seat height by changing the settings on the rear
shock
absorber spring.
The
amount of pressure
is frequently requested by a
cl
i
nicia
n.
Front
Seat
Height
The
front seat height can be adjusted by
repositioning
the caster housing. In
addition there are three
d
iff
ere
n
t
axle and
wheel
sizes
(small, medium
and large)
available.
By
adjusting the front seat
height
you can
increase
or decrease
the
amount of
pressure
on and position of the legs.
The
qu
i
c
k
release
fron
t
wheels
should be
locked
into position after adjusting and there should be no
play
in
the
in the caster wheel.
The wheel
casters should be tightened
periodically
because
they tend to
become
loose after long
periods
of use.
Adjustments
to the
rear
and
front seat heights
should
only
be
made by
an
authorized Colours dealer. We
dis-
cuss
them
for informational purposes
only.
Caster
Angle
Caster
Adjustment
Correct
adjustment and alignment of the two front casters are important
to
minimize
turning resistance and to guarantee that the chair
tracts
in
a
straight line.
The
chair must
always
be on a flat
surface
to
make
this ad-
justment.
As
a rule of thumb, the angle of the caster axle should be
go
·
to
the
ground.
If
the caster angle is
more
than
go
·
,
the turning resistance is in-
creased.
The
casters must be adjusted to
go
·
i
n
both
vertical
plains.
If
you experience front caster flutter (caster vibration) when
pushing
the
chair
at increased speeds, the caster angle should be adjusted to an angle
slightly less than
go
·
to
eliminate
t
h
e
prob
l
em
.
Colours
chairs are equipped with an
unique
camber disk.
Rotating
the disk
will
adjust the
camber
left to right (see
figure
1
).
The
caster
h
ousin
g
(wit
h
slots) adjusts the front to back
perpendicularity
of
the caster (see figure 2).
Always make sure
that the
front casters are
aligned
properly
in
relation
to
each other and
that they rotate
freely
in a
horizontal plane. Adjustment
to the wheel
alignment should only
be
made
by an authorized
Colours dealer. We discuss
it
for informational purpose
only.
12
0
W N E R
'
S M A N U A L
THE CAMBER DISK
:,.,---1
..,
=
r
tl
"'f
A.;,:o.
THE CAMBER
DI
S
K
so
·
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