FIGURE 21-1 The digital multimeter should be set to read DC volts, with the red lead connected to the positive (+) battery terminal and the black meter.

Slides:



Advertisements
Similar presentations
CHARGING SYSTEMS Induced Voltage AC Charging Systems
Advertisements

Charging System Tests & Voltage information Checking the charging system with just a volt meter.
Understanding the Alternator
A/C Generator Systems.
Instructor Name: (Your Name)
Chapter 33 Charging System Fundamentals.
OBJECTIVES After studying Chapter 21, the reader should be able to:
AUTOMOTIVE TECHNOLOGY
PHSAUTOMOTIVESALSPHSAUTOMOTIVESALS Charging System tests & Voltage information Checking the charging system with just a volt meter.
32 Chapter Charging System Technology. 32 Chapter Charging System Technology.
Charging System Service
Circuit Testers and Digital Meters 22 Introduction to Automotive Service James Halderman Darrell Deeter © 2013 Pearson Higher Education, Inc. Pearson Prentice.
Copyright ©2009 by Pearson Higher Education, Inc. Upper Saddle River, New Jersey All rights reserved. Advanced Engine Performance Diagnosis, Fourth.
Circuit Testers and Digital Meters
Charging System Fundamentals
Charging system PT 1 LSy_w.
© Goodheart-Willcox Co., Inc. Permission granted to reproduce for educational use only Publisher The Goodheart-Willcox Co., Inc. Tinley Park, Illinois.
Chapter 19 Charging Systems.
1.4b Charging System 1. Charging System Function of the charging system 2 Convert mechanical energy into electrical energy Recharge battery Provide higher.
Chapter 9 Cranking Systems.
Charging System Service
54 CHARGING SYSTEM CHARGING SYSTEM.
1 Advanced D-TAC Testing. 2 D-TAC testing – Part 2 This presentation is meant to be viewed after the introductory presentation ‘D-TAC testing – Batteries.
CHARGING SYSTEM Major Parts Battery                                               Alternator Regulator.
Advanced Engine Performance Diagnosis, Fourth Edition James D. Halderman Copyright ©2009 by Pearson Higher Education, Inc. Upper Saddle River, New Jersey.
Circuit Testers and Digital Meters 4 © 2013 Pearson Higher Education, Inc. Pearson Prentice Hall - Upper Saddle River, NJ Advanced Automotive Electricity.
Batteries, Starting & Charging Systems Batteries Purpose: a storage of electrical current to operate starting motor and ignition systems when starting.
Automotive Engines: Theory and Servicing, 7/e By James D. Halderman Copyright © 2011, 2009, 2005, 2001, 1997 Pearson Education, Inc., Upper Saddle River,
© 2011 Pearson Education, Inc. All Rights Reserved Automotive Technology, Fifth Edition James Halderman CHARGING SYSTEM DIAGNOSIS AND SERVICE 55.
Diagnosis and Troubleshooting of Automotive Electrical, Electronic, and Computer Systems, Fifth Edition By James D. Halderman © 2010 Pearson Higher Education,
AUTOMOTIVE CHARGING SYSTEMS CHAPTER 7 PURPOSE OF CHARGING SYSTEM b CONVERT MECHANICAL ENERGY INTO ELECTRICAL ENERGY b RECHARGE BATTERY b PROVIDE POWER.
PRINCIPLES OF OPERATION
Understanding the                                                                                                                                                                                                                          
Charging System Diagnosis and Service 12 © 2013 Pearson Higher Education, Inc. Pearson Prentice Hall - Upper Saddle River, NJ Advanced Automotive.
Automotive Electricity and Electronics, 3/e By James D. Halderman Copyright © 2011, 2009, 2005 Pearson Education, Inc., Upper Saddle River, NJ All.
Diagnosis and Troubleshooting of Automotive Electrical, Electronic, and Computer Systems, Fifth Edition By James D. Halderman © 2010 Pearson Higher Education,
CHAPTER Charging System 19 Copyright © 2016 by Pearson Education, Inc. All Rights Reserved Automotive Electrical and Engine Performance, 7e James D. Halderman.
ALTERNATOR OVERHAUL Teknik Kendaraan Ringan Semester 3th Class XI Kompetensi Kejuruan (KK) SK-KD 18.
Automotive Electricity and Electronics, 2/e By James D Halderman © 2009 Pearson Education, Inc. Pearson Prentice Hall - Upper Saddle River, NJ Automotive.
Diagnosis and Troubleshooting of Automotive Electrical, Electronic, and Computer Systems, Fifth Edition By James D. Halderman © 2010 Pearson Higher Education,
Basic Electricity END Alternators. 2 WHAT DOES AN ALTERNATOR DO? -IT GENERATES ELECTRICAL CURRENT -IT CONVERTS ALTERNATING CURRENT TO DIRECT CURRENT -IT.
Automotive Heating And Air Conditioning
Start.
Electrical Instrumentation
Charging System Testing and Service
CHARGING SYSTEM DIAGNOSIS AND SERVICE
Starting System Circuit Operation and Testing
AUTOMOTIVE CHARGING SYSTEMS
OBJECTIVES After studying Chapter 21, the reader should be able to:
Understanding the Alternator
Topics covered in this presentation:
54 CHARGING SYSTEM CHARGING SYSTEM.
CRANKING SYSTEM DIAGNOSIS AND SERVICE
11 Charging System Advanced Automotive Electricity and Electronics
33 Chapter Charging System Diagnosis, Testing, and Repair.
FIGURE 17-1 A visual inspection of this battery showed that the electrolyte level was below the plates in all cells.
Chapter 30 Charging System Fundamentals
FIGURE 20-1 A typical generator (alternator) on a Chevrolet V8 engine.
FIGURE 20-1 A typical generator (alternator) on a Chevrolet V8 engine.
22 Chapter Basic Electrical Tests. 22 Chapter Basic Electrical Tests.
FIGURE 19-1 To test the voltage drop of the battery cable connection, place one voltmeter lead on the battery terminal and the other voltmeter lead on.
FIGURE 35-1 If the vacuum hose is removed from the fuel-pressure regulator when the engine is running, the fuel pressure should increase. If it does not.
Charging System Fundamentals.
ALTERNATOR.
Automotive Technology Principles, Diagnosis, and Service
Automotive Technology Principles, Diagnosis, and Service
FIGURE 15–21 When connecting a starter tester such as a Sun VAT 45 to the vehicle, make certain that the inductive probe is placed over all of the cables.
FIGURE 18–1 A visual inspection on this battery shows the electrolyte level was below the plates in all cells.
Automotive Technology Principles, Diagnosis, and Service
Chapter 31 Charging System.
Presentation transcript:

FIGURE 21-1 The digital multimeter should be set to read DC volts, with the red lead connected to the positive (+) battery terminal and the black meter lead connected to the negative (-) battery terminal.

FIGURE 21-2 A scan tool such as this Chrysler DRB III can be used to check the generator output voltage.

FIGURE 21-3 If the rear bearing is magnetized, the voltage regulator, generator brushes, and rotor are functioning.

FIGURE 21-4 A GM generator with an internal voltage regulator can be identified by the horizontal plug-in connector.

FIGURE 21-5 Connections required to full-field a GM generator with an external voltage regulator.

FIGURE 21-6 Connections required to full-field a Ford generator with an external voltage regulator.

FIGURE 21-7 Jumper wire connections required to full-field a Ford (or Leece-Neville) generator with an internal electronic voltage regulator.

FIGURE 21-8 Wiring diagram of a Ford integral generator or regulator (IAR) assembly.

FIGURE 21-9 Connections required to full-field a Chrysler generator with a mechanical voltage regulator.

FIGURE 21-10 Connections required to full-field a Chrysler generator with an electronic voltage regulator.

FIGURE 21-11 Charging system voltage can be easily checked at the lighter plug by connecting a lighter plug to the voltmeter through a double banana plug.

FIGURE 21-12 Before replacing a generator (alternator), the wise technician checks that battery voltage is present at the output and battery voltage sense terminals.

FIGURE 21-13 This accessory drive belt should be replaced because it has many cracks. The usual specification for when a serpentine belt requires replacement is when there are three or more cracks in any one rib in any 3 in. length.

FIGURE 21-14 AC ripple at the output terminal of the generator is more accurate than testing at the battery due to the resistance of the wiring between the generator and the battery. The reading shown on the meter is only 78 mV (0.078V),far below what the reading would be if a diode were defective. (Courtesy of Fluke Corporation)

FIGURE 21-15 A mini clamp-on digital multimeter can be used to measure generator output. This meter was set on the 200-A DC scale. With the engine running and all lights and accessories on, the generator was able to produce almost exactly its specified rating of 105 A.

FIGURE 21-16 Voltmeter hookup to test the voltage drop of the charging circuit.

FIGURE 21-17 Typical GM SI generator FIGURE 21-17 Typical GM SI generator. Note the location and wire color used for terminals 1 and 2.

FIGURE 21-18 Typical GM CS generator wiring plug identification FIGURE 21-18 Typical GM CS generator wiring plug identification. Note that terminal F is sometimes terminal I on some generators.

FIGURE 21-19 Typical hookup of a starting and charging tester.

FIGURE 21-20 The output rating on the General Motors generator (alternator) is stamped into the case.

FIGURE 21-21 The output on this generator is printed on a label.

FIGURE 21-22 When connecting an inductive ammeter probe, be certain that the pickup is over all wires. The probe will work equally well over either all positive or all negative cables because all current leaving a battery must return.

FIGURE 21-23 A diagram showing the location of the charging system wiring of a typical vehicle. The best location to use to check for the generator alternator) output is at the output wire from the B+ (BAT) terminal. Notice that the generator supplies all electrical needs of the vehicle first, then charges the battery if needed.

FIGURE 21-24 Always mark the case of the generator before disassembly to be assured of correct reassembly.

FIGURE 21-25 Explanation of clock positions FIGURE 21-25 Explanation of clock positions. Because the four through bolts are equally spaced, it is possible for a generator to be installed in one of four different clock positions. The connector position is determined by viewing the generator from the diode end with the threaded adjusting lug in the up or 12 o’clock position. Select the 3 o’clock, 6 o’clock, 9 o’clock, or 12 o’clock position to match the unit being replaced.

FIGURE 21-26 Testing a generator rotor using an ohmmeter.

FIGURE 21-27 If the ohmmeter reads infinity between any two of the three stator windings, the stator is open and, therefore, defective. The ohmmeter should read infinity between any stator lead and the steel laminations. If the reading is less than infinity, the stator is grounded. Stator windings can be tested if shorted because the normal resistance is very low.

FIGURE 21-28 An open in a delta-wound stator cannot be detected using an ohmmeter.

FIGURE 21-29 Typical diode trio FIGURE 21-29 Typical diode trio. If one leg of a diode trio is open, the generator may produce close to normal output, but the charge indicator light on the dash will be on dimly. The plus signs indicate the anodes, and the minus sign indicates the cathode terminal of the diodes.

FIGURE 21-30 A GM rectifier bridge that has been disassembled to show the individual diodes.

FIGURE 21-31 Diodes being soldered to the stator on a Ford generator.

FIGURE 21-32 Testing a GM SI internal voltage regulator using a voltage regulator tester. This tester can be used to test most internal and external electronic voltage regulators by using the appropriate adapter harness and test leads.

FIGURE 21-33 A brush holder assembly shown assembled in the generator FIGURE 21-33 A brush holder assembly shown assembled in the generator. The brush retainer is actually a straightened-out paper clip.

FIGURE 21-34a A generator for a GEO Prism looks like a typical General Motors CS-130 except for this adapter that converted the Toyota wiring harness to the GM generator.

FIGURE 21-34b After removing the adapter, the original generator connection is visible.