Bentley R Type - Chapter X: The Electrical System; General

THe ErncrRrcAl
Sysrru.
85
CHAPTER
X
The
Electrical
System
G
ener
al-Dynamo-F
us
e
B
o
x-O wtpwt Regul,ator
and
C wt-Oi
ut-switch-
b o x- A mm et er
-B
att er
y
-F
ir
st C
h
ar g
e-T o
p
p
i ng-
U
p
-
S
p
e cif.c
G:r au ity
of
Electrol,yte-charging-charging-
BatteVy
fVoni
owisid,i
so%rce-
M ai nt en
qn
c e-1.
gniti
o
n- I
gniti
o n-
C
o iI-
I
gniti
o
n T
imi ng-F
ir i ng
o
r
d er
of
Cylinders-Sparking
Pl,ugs-starter
Motor-starter
Motor
Suitch-
Micro-Switch-Use
of Starter
Motor-Electric
Fuel,
Pumps
and Gauge-
Electric Horns-De-misting
Eqwipment-Electrical
Fiwk
Locati1n-
Recornmended
L!*!
BwIbs-H
eadlamps-Replacing
a H eadlamp
Butb-
Aligning_the leadlamps-The
side- Lamps-Radio-To
sei up
the
Tuning
Push Bwttons.
General.
The equipment
comprises_a
dynamo,
fuse
box,
automatic
output
regulator
a_nd
cut-out,
switchbox,
ammeter,
a
rz-volt,
approximately
ss-amperq-h9ur
battery, a
starter
motor
with
relay-opeiated
switch,
two
electric
horns
with push-button
switch
at head
of
steering
column,
!ead,
side,
rear
and interior
lights,
windscreen
wiper,
trlfficators,
de-froster,
de-mister,
car heater,
radio,
electric
fuel pumps
and
gauge,
and battery
ignition,
consisting
of coil
with
com-bined
low-t6nsiin
contact
breaker
and
high-tension
distributor,
and
the
necessary
wiring.
Incorporated
in
the
distributor is
a
governor,
which
effects
automatic
control
of
the ignition
timing.
The wiring
diagram
(Fig.
40),
shows
the units
urith
their
electrical
connectiorp,
the various
wires being
indicated
in
colours
to
correspond
with
those
of
their actual
coverings.
The
electrical
system is-earthe4
or.
the
positive
side
of the
battery
to the
chassis
frame,
and
all
switching is
done
in
the negative
leads.
-
Before
doing any
work
on a chassis
which is
likely
to involve
the
electrical
system, it is
advisable
to remove
the
chassis
fiame
connection
f.]roq
the p-ositive
battery
terminal,
and
so
render
the
whole
system
9ead,
but
do not
disconnect
whilst
any
charge
or
discharge
current
is passing.