Specifications

30
64
65
GROUNDED SOLENOID
START POSITION
CIRCUIT CLOSED
RUNNING AND
STOP POSITION
INSULATED SOLENOID
START POSITION
CIRCUIT CLOSED
RUNNING AND STOP
POSITION CIRCUIT
Diodes
In order to charge a battery it is necessary to convert alternating current (A.C.) to direct current (D.C.) This
is accomplished by using a diode or rectifier. Using a single diode will make use of one half of the A.C. signal
and is known as HALF WAVE RECTIFICATION. This is acceptable in certain applications. In certain
situations it is necessary to make use of the entire A.C. signal. To accomplish this we use multiple diodes
in a bridge configuration which produces FULL WAVE RECTIFICATION.
Solenoids
A solenoid is a heavy duty switching mechanism
used to handle large amounts of current. It consists
of a heavy strip of metal activated by an electromagnet.
The metal strip connects two contact points and
"makes" or "breaks" the electric circuit. Because
the metal strip is heavier than most switch contacts,
it does not pit or burn away as lighter switch contacts
will.
To test a grounded solenoid, connect positive (+)
solenoid terminal (next to solenoid ground) to the
positive (+) battery terminal. Connect negative ground
(-) terminal of the solenoid to the negative (-) battery
terminal. If solenoid is in good condition, the plunger
will "snap" and close the main contacts (diag. 64).
NOTE:With a grounded solenoid, battery B+ is
supplied to activate. With insulated solenoid,
battery B- is supplied to activate.
To test an insulated solenoid, connect the terminal
marked "B" to the positive (+) battery terminal.
Connect terminal marked "G" to the negative (-)
battery terminal. If the solenoid is in good condition,
the plugger will "snap" and close the main contacts.
ANODE
CATHODE
BAND OR OTHER
MARKING INDICATES
CATHODE END
A.C. INPUT
(+) VOLTAGE (D.C.)
The full wave rectifier makes use of the
entire A.C. signal, converting it to D.C.
DIRECTION OR FLOW OF CURRENT