THE
ELECTRICAL SYSTEM
•
•
•
(e)
Turn the adjuster slot gradually until the volt-
meter registers a stable reading within the
correct voltage limits (see Fig. N.15). Only
a small adjuster movement
is
needed to effect
an appreciable difference in the voltmeter
reading.
(f)
Re-check by stopping the engine, re-starting it
and running the alternator
at
3,000 r.p.m.
Check the voltmeter reading, and when it
is
correct, refit the control unit and remove the
voltmeter and ammeter.
Do
not attempt to
re-seal the adjuster hole. Application
of
undue
heat
will
damage the control unit.
Section N.14
RELAY
Description
The relay de-energizes the alternator rotor field
winding when the engine
is
stationary by disconnecting
the supply from the rotor field immediately the ignition
is
switched 'off'. This allows contact
'Cl'
and 'C2' to
part and open-circuit the rotor field winding. The
alternator will not generate
if
the contacts fail to close
when the ignition
is
switched 'on'.
N
Testing
(1) Connect
an
ammeter as detailed in Section
N.ll,
item (3).
(2)
Remove the lead from terminal 'C2'
and
tem-
porarily join to the
'Cl'
terminal, ensuring good
electrical contact.
(3)
If
the alternator generates its specified output
with the leads connected as above), the relay
is
faulty and must be replaced.
Check continuity
of
relay operating winding,
relay circuit wiring, and earth.
If
the relay and
circuit are satisfactory (with cables
'Cl'
and 'C2'
still joined),
but
no output from the alternator,
check the alternator and control unit.
Section
N.1S
WARNING
LIGHT
CONTROL
The control
is
electrically connected to the centre
point
of
one pair
of
diodes in the alternator and enables
a warning light to be used to indicate
that
the alternator
is
charging when the engine
is
running
at
normal speed.
If
proved faulty, replace the unit.
•
MINI. Issue
1.
14091
N.29
mk1-performance-conversions.co.uk
To Next Page
Loading...
