2. With the charging system properly connected (all wires re-
attached to the regulator), start the engine.
3. Bring the engine up to normal operating speed and test the battery
voltage again.
4. If the battery voltage while the engine is running is greater than
when the engine is stopped, the charging system is working.
CHARGING SYSTEM
REGULATOR
VOLTAGE
BATTERY
STATOR
SUPPLIED BY
B+ STARTER STUD
CUSTOMER
WHITE
WHITE
AC AC
B+
Figure 7-3. Basic Charging System Schematic
Note: With the engine running, the battery voltage should be at
least 13 Volts DC.
BATTERIES
Note: See Section 6 for battery size and cable selection information.
Figure 7-4. 20 Amp Alternator
SECTION 7: ALTERNATORS
7-2
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