,
~
..
.
.
. .
.
_
__
..
-.r
A.C.
Generator
Since, with the ignition switch at
"EMG
and the engine running, the battery receives
a charginglcurrent, the battery voltage soon begins to rise. The rising voltage
opposes the alternator voltage, gradually effecting a reduction in the energy available
for transfer to the coil. In the event of a rider omitting to return the ignition key
from position
"EMG"
to position "IGN" this reduction in spark energy will cause
misfiring to occur and will remind the rider to switch over to normal running.
As previously mentioned, continuous running without a battery
is
readily arranged
by earthing the cable normaliy connected to the battery negative terminal.
CONSTRUCTION
The alternator consists essentially of a spigot-mounted and bolted 6-coil laminated
stator with the centre-bored rotor carried on; and driven by, an extension to the
crankshaft. The rotor has an hexagonal steel core, each face of which carries
a
high
energy permanent magnet keyed to a laminated pole tip. The pole tips'are riveted
circumferentially to brass side plates, the assembly being cast in aluminium and
machined to give
a
smooth external finish. The stator and rotor can be separated
without any need to
fit
magnet keepen to the rotor poles.
RATING
fi
G
,ti.
The alternator
is
designed for use with headlamp bulbs not exceeding 30-watts rating
.,
.r<
r.
(or equivalent Continental touring bulbs which, although of higher wattage rating.
$
:$!
are yet suitable due to the generally higher average road speeds encountered abroad).
,"
/_*
ib
.i
@
THE ALTERNATOR
$
Except for an occasional inspection of the snap-connectors in the three green output
4
cables-these connectors must be clean and tight-the alternator requires no
r,
i;
maintenance.
:?
:I
HOLES
FOR
FIXING
BOLTS
POLE
CORES
COILS
EXTERNAL SPIGOT
LOCATIONS
STATOR
Fig.
69.
ALTERNATOR (Model RM14)
To Next Page
Loading...
Need help?
General
