Kubota D1803-CR-E4 - Alternator; Function of Alternator; Outline of Alternator; Specification of Starter (Planetary Gear Reduction Type)

8.7.4 Specification of starter (planetary
gear reduction type)
Nominal output
D1803-CR-E4, -
TE4, -TIE4
12 V, 1.4 kW
V2403-CR-E4, -
TE4, -TE4BG, -
TIE4
12 V, 2.0 kW
Pinion gear teeth 9
8.8 Alternator
8.8.1 Outline of alternator
The alternator self energizes while the engine is
running and charges the battery.
Charging
the battery using the alternator prevents
reduction in battery capacity making it possible to use it
for long term.
8.8.2 Structure of alternator
The alternator is made up of a pulley, starter, and IC
regulator and the like.
(1) Pulley
(2) Drive end frame
(3)
Rear end frame
(4) Stator
(5) Terminal
(6) Connector
(7) IC regulator
(8) Spring
(9) Brush
(10) Rectifier
(11) Rear end cover
(12) Rotor
(13) Bearing
8.8.3 Function of alternator
The alternator generates 3 phase current by means of
a fixed coil and rotation of a rotor
.
The
current generated is rectified using a rectifier made
up of diodes.
The rectified current charges the battery.
Operation of charging system
(1) Stator coil
(2) Rotor coil
(3)
Main switch
(4) Charge lamp
(5) Battery
(6) Load
(7) Alternator
(8) IC regulator
M.I
C
Monolithic IC
Tr1 Transistor
Tr2 Transistor
4. ENGINE
MECHANISM
8. Electrical system
4-72
D1803-CR-E4,D1803-CR-TE4,D1803-CR-TIE4,V2403-CR-E4,V2403-CR-TE4,V2403-CR-TE4BG,V2403-CR-TIE4
KiSC issued 12, 2018 A