1930 Cadillac Brochure Front Cover - GM Heritage Center

for the Cadillac car
and will give uninterrupted
service and long
life. It is carried in a
dust shield compartment
on the right side,
accessible by removing
a cover. The battery is
Unusual care has been taken to provide easy charged by a generator
starting without excessive drain on the bat- driven from the cranktcry,
thus assuring its long life.
shaft through a silent
chain at 1½ times engine speed. The generator is located directly
back of the water pump on the right side of the engine. Current
regulation is afforded by an adjustable third brush and an automatic,
thermostatic switch.
This switch permits high charging rales during cold weather and
on short trips where frequent use is made of the starter with a great
drain on the battery. On long trips in warm weather, this switch
reduces the charging rate, preventing overcharging of the battery
and eliminating the necessity for burning headlights while touring.
An automatic cut-out is provided on the generator to disconnect
it from the storage battery when the engine is not operating or
when its speed is such that the generator voltage is below that of
the storage battery.
The starting motor is of the 4-pole type and drives the llywheel
through a double reduction gearing. This provides an overall
reduction of 25 to 1, greatly reducing the load on the storage battery
during extremely cold weather. A positive engagement for the
starter pinion is provided, controlled by the starter pedal. The gears
are thus relieved of all shock loads, giving longer life and quieter
operation.
The entire electrical system is of a single wire type, the circuit
being completed through the frame. All connections between the
chassis and body circuits are made through accessible terminal
blocks on the dash. The system is protected against short circuits
by automatic circuit breakers. Two breakers are provided; one,
known as the lockout breaker, the other as a vibrating breaker.
When short circuits occur on headlamps or other units, readily
accessible, the vibrating breaker opens and closes, making a vibrating
noise indicating a short circuit which will continue until the
trouble has been corrected.
Other units, such as the horn, where a continued vibration is undesirable,
are connected
through the lockout
breaker which opens and
remains open until the
disturbance is removed.
This completely eliminates
fuses found in other
designs, and no owner
will ever be delayed for
lack of fuses.
When short Circuits All bronze bushings and brans parls are cast
are corrected, the current in Cadillac foundries. The metal is melted in
... t* 11 V. rocking electric furnaces, then poured into
will automatically be lad(cs ^rom which it is repoured ; n(o sani i
returned.
moulds
-29