Fit
the smaller of the two leather washers
over the locking ring followed by the
main
spring and the remaining leather washer.
Fit
bottom cover and securing screws.
Screw " pull through " into top end of main
tube and pass through crown lug and
head clip.
Draw into position by means of Tommy
Bar inserted across the " pull through," and
temporarily tighten the pinch bolt in the
crown lug.
Remove "Pull-through."
Fit
filler plug
to
main
tube and slacken
pinch bolt. Lock main tube in position with
filler plug. Re-tighten pinch bolt.
Fit
drain plug to fork end.
Remove filler plug.
Replenish with oil. (Para.
65.
)
REAR
SPRINGING
':,
. SWINGING
ARM
REMOVAL
AND
DISMANTLING.
As
there is neither adjustment nor lubrica-
tion necessary to the swinging arm pivot, no
periodic maintenance is necessary,
but
the
time may arrive when
it
becomes necessary
to dismantle the assembly, possibly to renew
the silentbloc bushes.
Remove rear wheel (Para. 57). Remove
~h
ock
absorber units by removing the bolts
securing the top and bottom members to the
frame and swinging arm respectively. Remove
the pivot bolt by first removing the oil bath
chaincase outer portion and the clutch (Paras.
36 and 38), removing the
nut
at
the offside
end of the pivot bolt and drifting the bolt
right •
')
Ut
of position, enabling the swinging
orm to be withdrawn.
The
silentbloc bushes are pressed into the
cross tube of the swinging arm and may be
knocked out of position, preferably using a
drift only slightly smaller than the bore of the
cross tube
but
longer than the hole
in
the
outer sleeve of the silentbloc. Soaking
in
release oil may assist
in
the removal of over-
tight bearings.
72.
RE--ASSEMBLY
AND
RE-FflTING
SWINGING
ARM.
Press
or
drift one new bush into swinging
arm until its outer sleeve is flush with the end
of the cross tube. Insert distance piece from
opposite side and press home the other bush.
Place swinging arm
in
position, ensuring that
the brackets for attaching the shock absorber
are on the top side, re-fit pivot bolt and
nut
and tighten.
73.
REAR
SUSPENSION
UNITS.
These fittings embody quite complicated oil
damping arrangements which arc carefully set
to
provide the correct suspension characteris-
tics for your machine.
They
are scaled and are
virtually leakproof and should
NOT
BE
IN-
TERFERED WITH. In the unlikely event
of any attention being necessary, their removal
is quite simple and straightforward and they
should
be
taken to your usual Norton dealer
or
to the nearest Norton distributor.
No
attempt whatever should be made by
the normal rider to dismantle, drain
or
re-fill
these units.
HANDLEBAR
FI'ITINGS
74.
IGNITION
AND
AIR
CONTROL
LEVERS.
The
ignition and air control levers are
shown in Fig.
17
in
the position which
they should be assembled,
having
first greased
both sides of the lever.
After fitting the adjusting
nut
it
should be
tightened to give the required tension.
To
remove the control cables from the lever,
open the l
.;vc
t
<;
far as possible, hold the
27
outer cable, and
as
the lever is closed, pull the
outer cable from the lever body.
Remove nipple from the lever.
To
fit the cables, fit nipple into
the
lever,
close the lever, pull the outer cable away from
the lever and fit the cable to the lever body.
75.
CLUTCH
AND
FRONT
BRAKE
CONTROL LEVERS.
The
clutch and front brake controls are so
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