ELECTRICAL
SYSTEM-Dynamo, Control Box and Fuses
current for a discharged battery and a low trickle charge for a battery in
the fully charged state. The cut-out, operated by dynamo voltage, prevents
discharge of the battery through the dynamo when the dynamo is not
charging, in which condition the ignition warning light will be glowing.
Belt Tightness
It is important that the belt is sufficiently tight to drive the dynamo
but not too
tighc as would put undue load on the dynamo and water pump
bearings. The correct
tension is achieved when the belt can be pressed
inwards
&"--2"
(15-19
mm.) on the longest run,
i.e.,
from the dynamo
pulley to the crank pulley,
It is essential after adjustment has been
made to securely tighten the fixing bolts.
THE
STARTER MOTOR
Cleaning and Lubrication
The starter brush gear and commutator will not normally require attention.
After 48,000 miles (80,000
km.)
however, it is advisable to have the unit
serviced at a Triumph or
Lucas Service Depot.
Should the starter pinion become jammed
in
mesh with the flywheel,
then it
can
be released by turning the crankshaft with the starting handle
in
the normal manner, or select top gear and rock the car backwards
and
forwards until the pinion releases itself. Do not forget to switch off the
ignition when carrying out this operation.
CONTROL BOX
The control box, mounted on the scuttle, houses the voltage regulator and cut-
out. These units are carefully and accurately set before leaving the works and
must not be tampered with.
FUSES
The fuse carrier is located forward of the control box and houses two operating
and two spare fuses. The top fuse
(50
amp.) protects the horn, while the other
fuse
(35 amp.) protects those items which can only operate when the ignition
is switched on,
i.e.,
direction indicators, windscreen wipers, brake light,
petrol gauge and heater
(if fitted).
When replacing a fuse, it is im-
portant to use the correct replacement; the fusing value is marked on a
coloured paper slip inside the tube.
A blown fuse will be indicated by the failure of all the units protected by it
and is confirmed by
examination of the fuse. If it is not possible to
locate the
cause of the trouble and the new fuse blows immediately, the equipment
should
be
examined by a Triumph or Lucas Agent or Service Depot.
37
SPORTS
CAR
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