BSA B33 - Electrical Equipment Maintenance; Battery Maintenance; Dynamo and Magdyno

Tbe clectrical
equipment
is
designed
and
måDufactu
€d
ro.Slve
long
periods
of service
withoul
aoy need
for
ac.Justmelt
or
cleaning.
The
small
amount
of attcn]io!
wruch
ls
rEquired
is desffibed
below
and
we
advise
noels
to
cally
out
the
procedue
outlined
in
ordca
to
cnsure
that the
best service
is obtained.
BATTERY.
Aboutonce_a
month
take off
the
battery
lid,
s€€
pagc
17,
rrmove
the
fller
plugs
from
eåch
of
the
cells ira
å*atni",l
tDe level
of th! elccFol),te
in each
cell.
If aeaessary,
add
sumcrent
drstllled
wåtcl
to
bring
tbc
electolytc
level
with
qre
rop
ol the
sepantors.
Do not
use tap
weter
and
do
lot
use
a naked
light
when examioing
the
condition
of
the cells-
,
Thc
cotrditioD
of
the battery
should
occasionajty
be
qtecked
by taking
hydrometer
readinBs
of the
spocmc
Favity
of the
elecfolyte.
Readings
should
be lakcn
anet uc
ootor
cycle
has be€n
out for
a rutr
when
the
crecEotyte
ls
thoroughly
mixed.
The
specific
rl_avitv
Eadrngs
and their
indications
arc
as follows:_
1.2E0-1.3m
Battery
fu
y
charced.
About
1.210
Battery
about
haladiscbargcd.
Below
1.150
Baatery
fuu
discbarged.
The
readings
for each
of thc
tbree
c€lls
should
bc
appro-ximåtely
the
same.
U oæ
cell
gives
a readin!
very
19"o"1.Iry.
rhe
orhers
it
may
be
that
etcctrotyie
hÅ
oeen sp
led
or
has leaked
from
tbis
particular
ceu
or
ulere
dray
be
a shorl
circuit
between
the
plates.
ID this
c6se
thc
battcD/
must
b€ cxamined
by a
-Lucas
Service
D€pot
or
Agent.
-
Finally
never
Ieave
the
battery
io
a discharged
conditiotr
ror
aoy
length
ot
time,
wipe
a$?y
all moistute
and
dirt
INSTRUCTIONS
FOR
THE
MAIN'IENANCE
OF
LUCAS
ELECTRICAL
EQUIPMENT
fifted
to
B.S.A.
B Group
Motor
Cycles
l_1._9:
t.q
of
tbe
batre.y
ard
kc€p
rbe
rermioals
cleatr
8å
"JiffTi;i1;ifff5j"uv
å.p'"*nt
"o"o'iåi.
MAGDYNO.
,._T".,.uqd-o
is.a
combined
dynamo
and
magncto
unrt,
llte
dynano
being
mounred
abov"
,t"
."å"iJ
ffå_o"ton
through
epats
from
t}e
ma8neto
driving
DYNAMO.
-"^1!ll1
9:'9ol.
Thc
dynamo
is
of
the
conpeDsated
lfllpe
controt
type
aDd
is
arranged
to
work
in
corr_
Jurctron
wjrh
a
regulator
ulit
wt
;h
is
6tted
al;;å
Tj_"u.t"yt:
The
rcgulator
causes
the
dynamo
to
grvi
aq
output
whjch
varies
according
to rhe
foia-
oo
ttre
iaticl
ano-tts
state
ofcharge.
The
dynamo
also
grves
an rDølase
or
ourput
to
balaoce
the
current
raken'
bt;;-i;il;
wncDever
lbcy
arc
switch€d
on,
It
w|lt
oe
noted
that
ountrg_
daytime
runtring
wben
the
b
coDdition
rh€.
dynarno
Å";
;r'
;,.[1f
?;åJ"..tir."l
ammeter
rcadings
will
seldom
be
more
rhan
.;"
;; ;;
,ti[qq,åttfu."*1iå'llrr,,.t""'tr;1:',Sfr
respond
causing
the
dynamo
output
r"
Uufu"å
tt"
f"Å"p
l^1h^jg:y'
A.bout
every
lq00o
mites,
take
off
rhe
::1":,
"ll9
and
check
the
brushes
una
"o_'nråtårl
:T,.,h.l
rh:
brushes
move
fr€€ly
in_rheir
f,"ii*..åy
::l:lltg
back
the
brush
sprinss
anå
pu
ing gentty
on
rhe
l.I:Dr"
99ry"L".r.
If
a
brush
is
inctined
tå Li"f,,
*..""
r rrom
its
holder
aod
clea!
irs
sides
wirh
.
p.i;;i-;;i"
rcned
ctoth.
Be. careful
to
rep,ace
brushes
in tireir
oris;;l
poslIrcns
ln
otrder
to
rctaiD
beddiD!.
r.the
commutator
should
be
ctean,
fre€
faom
oil
or
orn_
and
should
have
a
polished
a;peå.ance.
ff
it
is
::ny-,,clean
witb-a
dry
duster
while
ihe
engue
rs
slowlv
::T:1.1""19.
tf the
commutaror
is
*.y
,ii"iv,'ilråi.i.i
rne
qoth
with
o€trol
3l1ff-..
No
tubricarion
is
rcquir€d
to the
dynamo
as_.ba
bearings
arc
fitted
lo
botb
tbe
com4utator
and
orrvtng
and
hracket.
Thesc
bearings
arc
packed
witb
I
I
I