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4. 3
FRONT CUSHION
(3)
Next,
the reaction
from the spring causes
the fork pipe
CD
to rise and compress the oil
within
chamber
"B"
and then passes through the
orifices "b"
wh ich is designed to
provide
dam-
pening and flows back to
chamber
"
A".
The
viscosity
of the oil produces the
dampening.
When a load exceeds the
capacity
of
the
spring,
the fork pipe
approaches
the botto
m
of the bottom
case
@.
The oil
becomes
sealed between
the
tapered lock piece
®
and
the fork
pip
e
to
hy-
draulicall
y
absorb the
shock.
As the
orifrce
"b"
enters the
guide
@,
the oil
becomes
sealed within
chamber " B" and serves as
an
oil lock stopper
on
the
extension side.
•
Damping
force
during the measured
50 mm
(2 in) :
47-57
kg/
0.5
m/s
( l
03.6-125.7
lb/
l
96
.85
in/sl.
•
Oil
capacity:
285-295cc
117.4-18.0cu.
in.I
Cushion
rubber is inserted
under
the head
of
the
fr
ont
fo rk
upper
cove
r
to absorb vibration
of
the
headlight,
reducing the
shock to
the headlight
and
speedometer, and
increasing
their
reliability.
B.
Disassembly
1.
Separate
the front wheel
from
the motorcyc
le
in
accordance with Sect
ion 4. 13.
2.
Remove the 6
mm fender stay
mounting
bolt
from both
sides, 8 mm fender
mounting bolt and
the
front brake stopper arm bolt.
The fender
can be separated
from
the fork
.
( Fig. 4. 17)
3.
Unscrew
the headlight case mounting bolts
attaching the headlight
assembly
to
the
front fork.
Remove . the l
O
mm bolt from
the
back
side
of
the lower bottom bridge and
slide
the cushion
assembly out from the bottom.
(Fig.2
. 18)
NOTE:
The front cushion
removal
can be facilitated
by spreading the mounting ring
of
the bottom
bridge by
driving
a wedge into
the slot
on the
mounting ring.
4.
Drain the
.oil
in the cushion
by
removing the
drain plug at the b::ittom
or
inverting the cushion
and
draining the oil out of the top
mounting
bolt
hole before
separating
the upper and lower
cylinder.
5.
Remove the front boot (CB 450 : front fork
under cover), front cushion spring and then remove
the 47 mm internal circlip using the snap ring
plier.
Pull out and disassemble the front fork
bottom pipe and the front fork pipe assembly.
(fig.
4.
19)
Fig. 4. 17
Removing
t
he
front
fend
er
CD
Front
f
ernder
®
6mm
hex
bo
lts
Fig. 4. 18
Removing the front
fork
assembly
CD
Front
fork
bolt
®
10mm bolt
@
Front
cushion
assemb
ly
Fig.
4. 19
Removing
the
47
mm
circlip
CD
Plier
s
lclosel
@
47
mm int
eno\
circllp
73
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