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Electrica' i
ALTERNATOR
The
following
precautions must be observed to prevent inadvertent damage to
the alternator and its control equ
ipment.
Polarity. Ensure that the correct battery polarity (negative ground) is
maintained
at all times; reversed battery or charger connections will damage the
alternator
rectifiers.
Battery connections. The battery must never be disconnected while the engine
is
running.
FU SES
The fuses are housed under the fuse cover (1) mounted in the engine
compart-
Fig.
3
ment adjacent to the
battery.
Fuse connecting
1-2.
The fuse (2) protects one parking lamp, one tail lamp,
one
number-plate lamp, and one front and rear side marker lamp.
Fuse connecting
3-4.
The fuse
(3)
protects one parking lamp, one tail lamp
,
one number-plate lamp
,
and one front and rear side marker lamp.
Fuse connecting
5-6.
The fuse (4)
protects
the circuits which operate only when
the ignition is
switched
on. These circuits are for the direction indicators, brake
stop lamps, reverse lamps and seat belt warning.
Fuse connecting
7-8.
The fuse (5) protects the equipment which operates inde-
pendently of the ignition switch, namely horns, interior and luggage compartment
lamps
,
headlamp
flasher, brake
failure warn
ing
lamp, door and seat belt audible
warning and the
cigar-lighter
(if fitted)
Two spare
fuses (6)
are pro
vided
and it is important to use the correct replace-
ment fuse. The fusing
value,
current rated 17 amp. continuous
(35_
amp. blow
rated), is marked on a
coloured
slip of paper inside the glass tube of the fuse.
Line fuses
Running-on control valve (if fitted). The 17 amp. continuous current rated
(35
amp.
Fig.
3
blow rated) line fuse (7) protects the running-on control valve circuit which
operates when the ignition is switched off.
Hazard warning. The 17 amp. continuous current rated
(35
amp. blow rated) line
fuse (8) protects the hazard warning lamps and is located behind the hazard
warning switch. It is accessible only when the centre console is withdrawn (see
page 42).
Radio (if fitted). A separate additional line fuse protects the radio.
See
th
e
instructions supplied with the radio for the correct fuse ratings.
To change line fuse, hold one end of the cylindrical fuse holder (9), push
in,
and twist the other end (10). Remove the fuse (11) from the cylindrical
holder.
Blown fuses
A blown fuse is indicated by the failure of all the units protected by it, an
d
is
confirmed by examination of the fuse when withdrawn.
-
-
Before renewing a blown fuse inspect the wiring of the units that have failed
for
evidence of a short-circuit or other fault.
HEADLAMPS
Light unit
To remove a light unit, ease the bottom of the outer rim (1) forwards and lift
Fig. 4
it off the retaining lugs at the top of the lamp
.
Unscrew the three inner rim
retaining screws (2), remove the inner rim
(3),
withdraw the light unit (4), and
disconnect the three-pin plug
(5).
To fit a light
unit, connect the
three-pin plug,
posit
ion the light unit in the
headlamp body
ensuring
that
th thr
e lug
formed
on
the outer edge of the
light unit engage in the
slots
form d in th body,
and fit
the
inner retaining rim.
Refit the outer rim.
Beam setting
Two adjusting screws
are
provided
on each headlamp
for setting the main
beams. The screw (6) is for adjusting
the beam
in the vertical plane, and the
screw (7) is for horizontal adju
stment. The beams
must be set in accordance with
local regulations; resetting and
checking
should be entrusted to your
authorized
Austin MG Dealer, who will
have
special equipment available for this purpose.
Fig. 3
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Fig.
4
Fig. 4
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