Isuzu Rodeo UE. Manual — part 155

6D3–5

STARTING AND CHARGING SYSTEM (X22SE 2.2L)

Inspection and Repair

Repair or replace necessary parts if extreme wear or
damage is found during inspection.

Armature

Check for continuity between commutator and segment.
Replace commutator if there is no continuity (i.e.,
disconnected).

065RS015

Check for continuity between commutator and shaft.
Also, check for continuity between commutator and
armature core,armature core and shaft. Replace
commutator if there is continuity (i.e., internally
grounded).

065RS016

Brush

Measure the length of brush.
Replace with a new one, if it is below the limit.

Brush Holder

Check for continuity between brush holder (+) (4) and
base (–). Replace, if there is continuity (i.e., insulation is
broken).

065RW015

Magnetic Switch

Check for continuity of shunt coil between terminals S and
M.
Replace, if there is no continuity (i.e., coil is
disconnected).

065RW016

6D3–6

STARTING AND CHARGING SYSTEM (X22SE 2.2L)

Continuity of Series Coil

Check for continuity between terminals S and M.
Replace, if there is no continuity (i.e., coil is
disconnected).

065RW017

Continuity of Contacts

With the plunger faced downward, push down the
magnetic switch. In this state, check for continuity
between terminals B and M. Replace, if there is no
continuity (i.e., contacts are faulty).

065RW018

Pinion

Check if the pinion rotates smoothly in drive direction by
hand, or if it is locked when it is rotated in reverse. If not,
replace the pinion.

065RS025

Characteristic Test

For easily confirming the characteristics, conduct the
noload test as follows:
Rating as short as 30 seconds requires rapid testing.
Fix the starter on the test bench, and wire as shown in
illustration. When the switch is closed, the current flows
and the starter runs under no load. At this time, measure
current, voltage and speed to check if they satisfy the
standard.

065RW020

Legend

(1) Volt Meter
(2) Revolution Indicator
(3) Battery
(4) Ammeter
(5) Switch

6D3–7

STARTING AND CHARGING SYSTEM (X22SE 2.2L)

Charging System

General Description

The charging system is an IC integral regulator charging
system and its main components are connected as
shown in illustration.
The regulator is a solid state type and it is mounted along
with the brush holder assembly inside the generator
installed on the rear end cover.
The generator does not require particular maintenance
such as voltage adjustment. The rectifier connected to
the stator coil has eight diodes to transform AC voltage
into DC voltage.
This DC voltage is connected to the output terminal of
generator.

General On–Vehicle Inspection

The operating condition of charging system is indicated
by the charge warning lamp. The warning lamp comes on
when the starter switch is turned to “ON” position. The
charging system operates normally if the lamp goes off
when the engine starts.
If the warning lamp shows abnormality or if undercharged
or overcharged battery condition is suspected, perform
diagnosis by checking the charging system as follows:

1. Check visually the belt and wiring connector.
2. With the engine stopped, turn the stator switch to

“ON” position and observe the warning lamp.
If lamp does not come on:
Disconnect wiring connector from generator, and
ground the terminal “L” on connector side.
If lamp comes on:
Repair or replace the generator.

066RW021

Legend

(1) Regulator

(2) Indicator Lamp
(3) Generator Assembly

6D3–8

STARTING AND CHARGING SYSTEM (X22SE 2.2L)

Generator

Removal

1. Disconnect battery ground cable.
2. Move drive belt tensioner to loose side using wrench

then remove drive belt.

3. Disconnect terminal “B” wiring connector and

connector.

4. Remove generator bracket (1), (2) and remove

generator assembly.

065RW025

Inspection

Generator Power and Circuit Diagram

066RW020

Legend

(1) Load resistor, set parallel to battery
(2) Battery
(3) Voltmeter
(4) Ammeter
(5) Ignition Lock
(6) Charge Telltale
(7) Generator

1. Disconnect battery.
2. Close off connecting cable from alternator terminal

“B+”.

3. Set ammeter (measuring range 100A) in

disconnected line.

4. Connect controllable load resistor to battery terminal.
5. Set resistor in front of connection to “0”; connect first

to battery, then to resistor.

6. Connect tachometer.
7. Connect oscilloscope according to manufacturer’s

instructions.

8. Connect battery.
9. Start engine and read off resulting current at various

engine speeds.