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Chapter 9 - electrical – Cub Cadet 4 x 4 Volunteer User Manual

Page 300

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Chapter 9 - Electrical

296

7.

How the system is wired together

The Rules: All circuits have some basic rules that
must be followed:

7a. All circuits must have at least one voltage

source. It is could be a battery, an altena-
tor or both.

7b. All circuits must have a load. A circuit with-

out a load the same as shorting out the
power source. Typical loads could be:

_ lights

_a motor

_a solenoid

7c. All circuits must have a complete path

back to the voltage source. This is also
known as having continuity.

NOTE: On outdoor power equipment, the frame
of the machine is frequently used as the return
path to the battery. This is referred to as ground-
ing the machine.
Any point on the frame should be the same as
the negative post of the battery (Electrically)
unless there is a bad connection between the
battery and the frame or between the frame and
the component or cable that is assumed to be
grounded to it.

7d. Most circuits have additional components

like switches and fuses.

Types of circuits

There are three ways a circuit can be wired:

Series

Parallel

Series/parallel

Series

Series circuits are wired so that the current has
only one path to follow. If one component in the
system fails, the circuit will be broken and whole
system will not work. See Figure 9.47.

Parallel

Parallel circuits are wired so that current has
multiple paths to follow. If a component in one of
the parallel paths fails, the rest of the circuit will
keep working. See Figure 9.48.

Figure 9.47

Switch

Battery

Lamp

Figure 9.48

Battery

Lamp

Lamp

Lamp