2004 ISUZU TF SERIES Workshop Manual

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Page 2553 of 4264

ISUZU TF SERIES 2004 Workshop Manual IGNITION SYSTEM 6D2-5
Main Data and Specifications
General Specifications
Ignition System
Ignition Form Electronic Ignition System (El system) with Crankshaft angle Sensor
Spark Plug

Type

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ISUZU TF SERIES 2004 Workshop Manual 6D2-6 IGNITION SYSTEM
MEMO

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ISUZU TF SERIES 2004 Workshop Manual STARTING AND CHARGING SYSTEM 6D3-1
SECTION 6D3
STARTING AND CHARGING SYSTEM
CONTENTS
PAGE
Starting System ........................................................................................

STARTING AND CHARGING SYSTEM 6D3-1
SECTION 6D3
STARTING AND CHARGING SYSTEM
CONTENTS
PAGE
Starting System .............................................................................................................. 6D3- 2
General Description........................................................................................................ 6D3- 2
Service Precaution ......................................................................................................... 6D3- 2
Diagnosis......................................................................................................................... 6D3- 2
Starter .............................................................................................................................. 6D3- 3
Removal ...................................................................................................................... 6D3- 3
Installation .................................................................................................................. 6D3- 3
Disassembled View.................................................................................................... 6D3- 4
Inspection and Repair................................................................................................ 6D3- 5
Characteristic Test ..................................................................................................... 6D3- 6
Charging System ............................................................................................................
6D3- 7
General Description........................................................................................................ 6D3- 7
General On-Vehicle Inspection...................................................................................... 6D3- 8
Generator......................................................................................................................... 6D3- 8
Removal ...................................................................................................................... 6D3- 8
Inspection ................................................................................................................... 6D3- 8
Installation .................................................................................................................. 6D3- 9
Diagnosis......................................................................................................................... 6D3-12
Disassembly ............................................................................................................... 6D3-13
Clean ........................................................................................................................... 6D3-14
Inspection ................................................................................................................... 6D3-14
Reassembly ................................................................................................................ 6D3-18
Inspection ................................................................................................................... 6D3-19
Technical Data ................................................................................................................ 6D3-21

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ISUZU TF SERIES 2004 Workshop Manual 6D3-2 STARTING AND CHARGING SYSTEM

Starting System
General Description
Cranking Circuit
The cranking system consists of a battery, starter, starter
switch, starter relay, etc. These main co

6D3-2 STARTING AND CHARGING SYSTEM

Starting System
General Description
Cranking Circuit
The cranking system consists of a battery, starter, starter
switch, starter relay, etc. These main components are
connected.
Starter
The cranking system employs a magnetic type reduction
starter in which the motor shaft is also used as a pinion shaft.
When the starter switch is turned on, the contacts of magnetic
switch are closed, and the armature rotates. At the same time,
the plunger is attracted, and the pinion is pushed forward by
the shift lever to mesh with the ring gear.
Then, the ring gear runs to start the engine. When the engine
starts and the starter switch is turned off, the plunger returns,
the pinion is disengaged from the ring gear, and the armature
stops rotation. When the engine speed is higher than the
pinion, the pinion idles, so that the armature is not driven.

Service Precaution
CAUTION:
Always use the correct fastener in the proper location.
When you replace a fastener, use ONLY the exact part
number for that application. ISUZU will call out those
fasteners that require a replacement after removal. ISUZU
will also call out the fasteners that require thread lockers
or thread sealant. UNLESS OTHERWISE SPECIFIED, do
not use supplemental coatings (Paints, greases, or other
corrosion inhibitors) on threaded fasteners or fastener
joint interfaces. Generally, such coatings adversely affect
the fastener torque and the joint clamping force, and may
damage the fastener. When you install fasteners, use the
correct tightening sequence and specifications. Following
these instructions can help you avoid damage to parts
and systems.

Diagnosis
Condition Possible cause Correction
Starter does not run Charging failure Repair charging system
Battery Failure Replace Battery
Terminal connection failure Repair or replace terminal connector
and/or wiring harness
Starter switch failure Repair or replace starter switch
Starter failure Repair or replace starter

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ISUZU TF SERIES 2004 Workshop Manual STARTING AND CHARGING SYSTEM 6D3-3

Starter
Removal
1. Remove the battery ground cable.
2. Remove harness connectors (1) and (2).

3. Remove bolts from starter.

Installatio

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ISUZU TF SERIES 2004 Workshop Manual 6D3-4 STARTING AND CHARGING SYSTEM

Disassembled View
Legend
1 Bolt
2 Magnetic Switch
3 Gear Case
4 Piston
5 Piston Shaft
6 Center Bracket7 Armature
8 Yoke Assembly
9 Brush and Brush Holder
10 Wa

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ISUZU TF SERIES 2004 Workshop Manual STARTING AND CHARGING SYSTEM 6D3-5

Inspection and Repair
Repair or replace necessary parts if extreme wear or damage
is found during inspection.
Armature
Check for continuity between comm

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ISUZU TF SERIES 2004 Workshop Manual 6D3-6 STARTING AND CHARGING SYSTEM

Continuity of Contacts
With the plunger faced downward, push down the magnetic
switch. In this state, check for continuity between terminals B
and M. Re

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