Honda CB450 1968 Service Manual page 87

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76
Fig.
4.
24
Sectional
view of steering stem
CD
Steer
ing
damper knob
®
Damper
lock
spring setting bolt
@
Steering damper lock spring
©
Front fork
top
bridge
®
Steering
stem
®
Steering
damper plate A
CZ)
Steering damper pla te B
®
Steering damper spring
@)
Steering damper friction
disc
Fig.
4. 25
Removing
the steer ing stem
CD
Steering
head top
thread
®
Head pipe
@
#
8 Steel
bo
lls
©
Steering
stem
4.
FRAME
4. 4
Steering Stem
A.
Construction
The
steering stem is mounted
to the
front
cushions
by bolt
through
the
fork top
bridge.
The steering
stem
is
mounted to
the frame
head pipe and pivots
on
the
upper and lower
sets
of the ball bearings.
Steering stem
is equipped with
steering damper
to provide
adjustment
of
the
steering stem.
The
steering
stem
can be adjusted for
any
type
of
riding or
road conditions.
If
the
steering damper
knob
is turned
clockwise, force supply
to
the
fric-
tion
disc
causes the steering to
become tight.
If
the steering damper knob is turned
counter clock-
wise,
a tension of the damper spring
is relieved,
providing
less
friction between damper plates.
The
handle bar lock
consists
of a
lock
unit and support
unit combined with
the steering
stem.
(Fig. 4. 24)
B.
Disassembly
l.
Separate the
handle bar
in accordance with
Section
4. l B.
2.
Remove the
front
wheel
in
accordance
wi
th
Section
4. l B.
3.
Disassemble front cushion
in accordance
w
ith
Section
4.
3 B.
4.
Remove the top bridge plate
in accordance
with Section
4.
2 B.
5.
With
the turn
signal
lamps
remaining
mounted
on
the
headlight case,
remove the upper
cover
and lower
cover
of other
fork.
6.
Remove the steering stem
top
thread
and
w ithdraw steering
stem
out of
the
head pipe,
being
careful
not
to drop
the
steel balls.
(Fig. 4. 25)
C.
Inspection
l.
Inspect
steel
balls for
cracks,
w
ear and
other
damages.
2.
Inspect
the cone and
ball races
of both
the
top and bot tom for any wear or
damages.
3.
Inspect
the
steering
head
dust seal
for
wear
and
damages.
4.
Inspect the top
end of
steering
stem for
damaged threads.
5.
Check
the
steering
damper fixing disc for
wear.
6.
Inspect
steering handle Jock for damages or
defects.

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