Fan Dynamo - Kubota EA330-E4 Series Workshop Manual

EA330-E4, WSM

[2] FAN DYNAMO

The electrical system of this engine comes equipped
with the starter, glow plug, fan dynamo and switch box as
standard.
The fan dynamo is a single-phase alternating current
generator built in the radiator fan. The rectifier rectifies
the single-phase alternating current. When the rectified
current voltage is higher than the battery voltage, the
battery is charged. When the battery is charged and its
voltage exceeds approximately 14 V, the zener diode of
the current limiter conduct, causing the thyristor to
conduct. Thus, current generated at the dynamo is
grounded directly through the thyristor, preventing
overcharge.
Recommendation battery changing
capability
NOTE
• The thick line indicates a circuit normally live
with 12 V.
The fan dynamo
alternating current as the permanent magnet (2) which is
an integral part of the fan (1) rotates outside the dynamo
coil (3) which is fixed.
Power Generating Performance
EA330-E4-NB1
EA330-E4-NB1-APU-1
(1) Fan
(2) Permanent Magnet
1-M25
ENGINE
28 to 32 Ah
9Y1211018ENM0042US0
generates a single-phase
13V 1.6 to 2.6 A
-1
(Fan speed: 6950 min (rpm))
(3) Fan Dynamo
9Y1211018ENM0043US0
KiSC issued 05, 2015 A