SettiDg the Beam. Thc best
way
of
checking the setting
of
the lamp is
to stand
the motor
cycle
in front of a liglr
coloured
pall
at a distance of about 25 feet. If lecessary,
slacken the bolts securing the headlamp and move
the
lamp until, with the main driving light switched on,
the
beam is
projected
straight ahead and
pamllel
with
the
ground.
With tbe lamp in this
position,
the height of the
beam cenfe on the wall should b€ the
same as the height
ofthe centre of the headlamp
from the
ground.
Stop
Ligbt
Switcb. This
is operated by the brake rod
tfuough
a
spring- It is desirable to see
that
any mud or
grease
is
periodically
cleared away from
the swiich and
the operating mechanism
should be oiled occasionally
wirh
thin oil.
Resr
Stop
Lamp- The
red transparentplastic
portion
ofthe
lamp can b€
raken
offby removing
the two retaininB screws.
ReDlicement Br bs
Lucas No. Watts
.. 312 30124
.. 988 3
.. 384 6/18
(itrdex)
WIRING
CONNECTIONS
FOR
B.S.A. HEADLAMP COWL
When this
is
packed
as a loose item
(i.e.,
not installed in
positioo
on the fiont forks),
it
comprises
an actual cowl
unit, with the threæ
followitrg items attached to it:
The Main Svitcb.
This is on the left-hand
side,
and
has
seven
teftinals, or binding
posts,
on
its unde$ide
oumbered clockwise.
Speedometer
Head. This
has on its underside the con-
nector for the s[æedometer
light on the side adjacent
to
the maitr switch, the other
iterns being the contrcl fot
the
speedometer
t
p
and the actual drive. The
lattgr
passes
through
the headlamp shell.
Airmete..
This is on the right, and
has on its undercide
two
tetuinals, the one
next to the speedometer head being
the negative. and
the
othe.
beiog the
positive.
I
Fig.22. 'B' Model
wiring diagtum
(
neg.rtir)e
earth
*
early
ntodels)
66
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