The Land Rover Series III Alternator’s mechanical features are a rotor supported by two ball bearings. No periodic lubrication is required. The field winding carried on the rotor is energized via a pair of air brushes and slip-rings. Cooling air is drawn through the unit by a fan mounted at the drive end. Electrically an alternating current produced in the tree-phase, star-connected stating stator windings is rectified by six diodes-three on the live side and three on the earth side-to supply direct current to the vehicle electrical circuits and battery.

Below schematic depicts the Land Rover Series III Alternator Wiring Diagram.

Land Rover Series III Alternator Wiring Diagram

1
2
3
4
5
6
7
8
9
10
11
12
T1
T2
T3
R1, R2, R3, R4, R5 and R6
D1, D2
C1
C2
ZD
AD

Stator windings
Live side output diodes
Earth side output diodes
Field winding supply diodes
European terminations
Brushes and slip rings
Field winding
Battery sensed lead – white
Metal connector link
Surge lead – yellow
Machine sensed lead – red
Earth lead – black
Input transistor
Intermediate transistor
Output transistor
Resistors
Diodes
Capacitor
Condenser
Zener Diode
Avalanched Diode



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