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Starting Systems State a major safety precaution when removing or working around a starting motor
Dont make your starter an Arc Welder! Always unhook the battery ground Before removing the starter motor
Starting Systems Identify the following components Armature Commutator Brushes Pole Shoe Field Coil
The Armature is a rotating electromagnet
Commutator bars allow current in and out of the armature
Brushes ride on commutator barsBrushes transfer electrons from the stationary field coils to the spinning armature
Insulated Brushes Grounded Brushes
Field Coils are Stationary Electromagnets Pole Shoes concentrate the stationary magnetic field
Starting Systems Identify the following components Starter housing or frame Bushings Starter Drive Pinion Over-running clutch
Worn out bushings... Allow the armature to drag on the pole shoes This will slow the starter and INCREASE amp draw
Worn or Dry Armature shaft will INCREASE amp flow
Burned commutator bars restrict the amp flow
Worn out brushes DECREASE amp flow
There will be more questions......On the test…. …than I am covering here. Read your book… and complete Starter Labs
Test the Starting System Check Cranking RPM Check Cranking Volts Check Cranking Amps
Low Cranking RPM A slow turning starter will pull extra amps Could be caused by tight engine (New Engines) Can be caused by advanced timing
Low Cranking RPM Low cranking RPM…. …With low cranking Amps… Bad Starter Worn brushes, Bad commutator bars, open in field or armature
Cranking Volts Power is required to turn motor P = I x E Low volts will cause high amps
Low Cranking Volts Cranking volts at battery should be over 10V Load test battery if low cranking volts Excessive amp draw can cause low cranking volts in a good battery
High Cranking Amps Check voltage drop across STARTER MOTOR If Battery cranking volt is 1/2 volt more than Starter volt drop diagnose battery cables and connections
If cranking volts are within 1 volt of battery… Insure engine turns freely Insure ignition does not cause slow turning engine Replace Starter Motor (assuming there are excessive amps)
Before you install the rebuilt starter Bench test the replacement It may save you a starter R & R
Starting Systems Understand the operation of the two starting circuits #1 Starter Control Circuit #2 Starter Motor Circuit
Starter Solenoid Understand the function of the Pull In solenoid windings…. …and the hold in solenoid windings
Starter Solenoids Predict the effect of an open circuit in the solenoid pull in windings…. ….and the solenoid hold in windings
Notice pitted contact ring
24 Volt Series/Parallel Switch Understand how 12 volt batteries can be used to run a 24 Volt starting system
Series/Parallel Switch Diagnose a defective series parallel switch using a volt meter
Starter Control Identify variations in starter control circuits
Test the Starting System The Bottom Line Test cranking RPM Test Cranking Volts Test Cranking Amps
© Unitec New Zealand 1 Faulty Starting System Symptoms No Cranking Slow Cranking Abnormal Noise Overheating of Cables.
STARTING SYSTEM. Battery provides the current to turn the starter motor. Fuse protects the circuit. Ignition switch closes the circuit. Relay uses small.
Chapters 28 Starting System Fundamentals. What we call the starting system is really the cranking system.
© 2012 Delmar, Cengage Learning Starting System Service Chapter 29.
1 Starting System Principles Uses battery power. 2 AUTOMOTIVE STARTING SYSTEMS Starter Circuit Electric DC Motor (starter motor) Solenoid or Relay Gear.
© Goodheart-Willcox Co., Inc. Permission granted to reproduce for educational use only Publisher The Goodheart-Willcox Co., Inc. Tinley Park, Illinois.
BATTERY CABLES AND WIRING IGNITION SWITCH NEUTRAL SAFETY SWITCH STARTER RELAY/SOLENOID STARTER MOTOR.
STARTER SYSTEM DIAGNOSIS AND SERVICE CHAPTER 5 LAB MANUAL.
Cranking System 9 © 2013 Pearson Higher Education, Inc. Pearson Prentice Hall - Upper Saddle River, NJ Advanced Automotive Electricity and Electronics.
STARTING & CHARGING SYSTEM DIAGNOSIS Battery Starter Alternator.
© 2015 Cengage Learning. All Rights Reserved. May not be scanned, copied, duplicated, or posted to a publicly accessible website, in whole or in part.
Starting System Fundamentals Chapter 32 Page 431.
Copyright © 2014 Delmar, Cengage Learning DC Motors Instructor Name: (Your Name) 8 CHAPTER.
E2 Motors and Motor Starting #3 Contactors and Motor Starters.
The Direct Current (DC) Electric Motor What you need to know: -Electromagnetism - main parts of the motor -Flow of electricity through the motor - interaction.
© 2011 Pearson Education, Inc. All Rights Reserved Automotive Technology, Fifth Edition James Halderman CRANKING SYSTEM 52.
Diagnose the Starting System. Fender Covers ! You must have a strong battery to test the starter.
Common starting system problems. n n In a no-crank problem, the engine crankshaft does NOT rotate properly with the ignition key at start. The most common.
© 2012 Delmar, Cengage Learning Starting System Fundamentals Chapter 28.
© Goodheart-Willcox Co., Inc. Permission granted to reproduce for educational use only.
CHAPTER Cranking System 17 Copyright © 2016 by Pearson Education, Inc. All Rights Reserved Automotive Electrical and Engine Performance, 7e James D. Halderman.
Motors. Torque on a Solenoid N S SN e - Like poles repel, unlike poles attract. The solenoid will rotate counterclockwise.
A/C Generator Systems. What is the function of the charging system? Provide power for all electrical loads Recharge the starting battery.
Starter System Service Chapter 33 Page 439. Service Begins with Checking System Check the battery first –Voltage should be 12.6 and while the starter.
Basic charging system parts Charging system functions Types of charging systems Alternator operation Alternator construction Charge indicators.
Lesson 10: Aircraft Electrical Systems. Aircraft Electrical Systems A circuit must have at least three parts.
Diagnosis and Troubleshooting of Automotive Electrical, Electronic, and Computer Systems, Fifth Edition By James D. Halderman © 2010 Pearson Higher Education,
INTRODUCTION TO ROBOTICS Part 3: Propulsion System Robotics and Automation Copyright © Texas Education Agency, All rights reserved. 1.
Chapter 9 Cranking Systems. Objectives (1 of 2) Identify the components in a truck cranking system. Explain the operating principles of magnetic switches,
BEX – Basic Electricity – Unit 13 Magnetic Motors REF: Delmar’s Standard Textbook of Electricity, Unit 13.
1.4b Charging System 1. Charging System Function of the charging system 2 Convert mechanical energy into electrical energy Recharge battery Provide higher.
Small Engines Ignition System Ignition System Function Ignite the fuel and air mixture at the proper time. Advance and retard the ignition timing as.
1 CHARGING SYSTEMS Induced Voltage AC Charging Systems Preliminary Checks AC Generator Service Converts Mechanical Energy into Electrical Energy.
© 2011 Pearson Education, Inc. All Rights Reserved Automotive Technology, Fifth Edition James Halderman CRANKING SYSTEM DIAGNOSIS AND SERVICE 53.
Diagnosis and Troubleshooting of Automotive Electrical, Electronic, and Computer Systems, 6/e - By James D. Halderman Copyright © 2012, 2010, 2005, 2001,
Ignition System An ignition system is a system for igniting a fuel-air mixture. Ignition systems are well known in the field of internal combustion engines.
© 2012 Delmar, Cengage Learning Charging System Fundamentals Chapter 30.
POWER WINDOWS COLUMBIA BASIN COLLEGE Automotive Technology.
Magnetism Any time electrical power is moving through a wire magnetism is created Any time magnetism moves past a wire electrical power is created.
What Makes an Electric Motor Work? The Science and Technology Behind Electric Motors.
GENERATORS AND MOTORS Topic 6. Electromagnets When a soft iron core is inserted into a coil of wire and a current is passed through the wire, an even.
ET 332A DC MOTORS, GENERATORS AND ENERGY CONVERSION DEVICES Lesson 7: Construction of Elementary Dc Generators 1.
Electrical Systems Chapter 9. Aim Describe principals of operation of the aircraft electrical system.
STARTING SYSTEM Function: Bring the engine to cranking r.p.m. (200rpm) so the engine can draw fuel and air and ignite that fuel and air.
Principles of Physics Meters and Motors. A wire loop placed in a uniform magnetic field experiences a turning force The loop only rotates 90˚, then stops.
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