Charging Circuit - Cub Cadet 2000 Series Professional Shop Manual

Charging circuit

Stator
Figure 7.24
D.C. out
A.C. in
Figure 7.25
Rotor
(magnets in recess)
Regulator/
Rectifier
Ground
How it works
1. When the engine is running, magnets attached to the
underside of the flywheel induce A.C. (Alternating
Current) in the stator that is mounted beneath the fly-
wheel. See Figure 7.24.
2. The A.C. travels from the stator to and from the regu-
lator/rectifier through the two white wires.
NOTE: The magnets inside the flywheel act as a rotor for
the charging system.
3. The regulator/rectifier takes alternating current and
converts (rectifies) it to D.C. (Direct Current). The
regulator rectifier also regulates the voltage to a nom-
inal 12 volts. See Figure 7.25.
• Actual output is closer to 14 volts, but should be no
more than 15 volts.
• To work properly, the regulator/rectifier must have
a good ground connection to the engine block and
ultimately, back to the battery negative post.
4. Regulated D.C. power leaves the regulator/rectifier.
4a. A purple wire comes out of the regulator/recti-
fier.
4b. The purple wire changes to a red/white trace
wire at the harness connector.
Electrical System
109