Front Wheel Removal - BSA B31 Instruction Manual

Frodt
Wheel
Remorol
(t
in, Brake
only).
This hub
ls also
fitted with baf
journa]
bearings atrd adjustment
is
not
requircd.
Dismantle the assembly
in
the
following
order:-
1.
The
btuke
anchor
strøp.
Take
off
the
nut
C,
Fig.
20
on
the cover plate, and slacken the outs D at
the opposite
€nds
of the
stap,
2.
The brake
cable. This must
be
uncoupled fiIst
at the
lever
E
on the brake cover plate and
then
unsøewed
from
the
Stop
F.
3. Pinch bolt
A.
The wheel spindle is locked by
means
of this bolt, which is fitted to
the nearside
fork
leg only
It
is
only
nec€ssary
to
slacken the
pinch
bolt.
4. The
wheel
spindle,
To
unscrew,
a
tommy bar of
suitable dimensiotr should be inserted through the
hole
in
the
spindle head
at
B.
Nole tfutt rhe spindle
has
a left-
hand
thrcad and unscrews by
twning
in
a
clockwise dircction,
5.
Withdruw the
spindle from
lhe nearside. Support the
weight
of
the wheel when
takiig
out tåe spitrdle,
aDd
the
wheel can then be rcmoved.
After
removal,
do not let
the weight
of
the
wheel
fall
on to the
bush
which projects
from the brake
side
of
the
hub. Although
the bush is pressed in,
it
may,
if
subjected
to a
sharp
blow, fall
inside
the
cover
plate,
so
that
the
latter would have
to
be removed before the bush could
be ietrieved and
located in
position.
Separate Clip-on
Hrflllebars,
These
can
be
adjusted
radially about the
fork
leg centre
or vertically,
and have a
total up
and
down movement of approximately
1*
hches.
Each bar
is
clamped
itr position by two bolts fitted
with
a plain
washer
at
each
end
aDd
a
shake
proof nut
with
Dylon insert.
To
remov€ the handlebars (having
slackened the bolts
describ€d
in
the previous paragraph)
it
is
Decessary
to
release
the
fork
legs
from their
tapers
in
the
top yoke
atrd
this is carried out
as
follows:-
Slacken the two
pinch
bolts, D, Fig.
5,
in
the bottom
yoke.
Remove the chrome fork
caps
,{,
and screw B.S.A.
Service
Tool No,
6l-3350
into
the
thread
at
the
toD
of
on€ of
the legs.
Vigorously tap
the
tool with
a mallet
until
the
fork
leg
is rel€ased
from
its
tapercd seating
in
the
top yoke.
Having
released the
fork
leg, it should
be
slid
downwatds
sufficiently
to pemit
the
haDdlebar
to
be removed and
then
pulled up into its taper
again
by
means of
the service
tool,
This
will
maintain
the
front
wheel
in
Dosition while
the other
fork
leg is released.
This operation
can be carried out
without
the
use of the
Service
Tool by
unscrewing each
chrome
fork
cap a few
threads and tapping
it
down with a mallet
until
the
fork
leg is
relealed,
This method
is
not
rccotnrnended
exceDt
in
an
emerg€ncy, as coDsiderable strain is placed upon the
chrome cap,
particularly
when
pulling
the
fork
leg back
into
the
rop yoke.
il
i
t,
i
:
Fig,
m.
Front llheel
Removal
(8 in. Bruke)
6
6l