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Chapter 43
The document provides information about diagnosing and repairing various dash instruments and warning systems in vehicles, including:
- Dash warning symbols convey important information through symbols rather than words.
- Analog fuel gauges use electromagnetic coils and sensors to measure fuel level. Computer-controlled dashes receive sensor data from the engine computer.
- Stepper motors precisely control needle movement in most analog gauges.
- Telltale lamps warn of system failures like low oil pressure or overheating.
- Diagnosis procedures test sensors and switches that control warning lights.
- Digital dashes use LED, LCD, or vacuum fluorescent displays controlled by computers.
Chapter 13
The document discusses several key concepts related to vehicle braking systems and mechanics:
1) Kinetic energy increases with both an object's mass and speed, requiring braking systems to account for heavier or faster vehicles. Mechanical advantage through leverage multiplies braking force.
2) Temperature measures heat intensity while heat is a quantity, transferred through conduction, convection, or radiation. Insulators impede heat transfer while conductors facilitate it.
3) The scientific method involves observing problems, formulating hypotheses, testing explanations, and verifying solutions to determine a root cause through repeated questioning.
Chapter 63
The document provides an overview of the eight-step diagnostic process for troubleshooting vehicle issues. It describes the steps as: 1) verifying the problem, 2) performing visual inspections and basic tests, 3) retrieving diagnostic trouble codes, 4) checking for technical service bulletins, 5) examining scan tool data, 6) narrowing the problem to a specific system or cylinder, 7) repairing the issue and determining the root cause, and 8) verifying that the repair addressed the original problem. The document also discusses tools like scan tools and methods for clearing diagnostic trouble codes.
Chapter 42
The document provides information about lighting systems diagnosis and repair, including:
1) It describes how interior and exterior lighting systems work and discusses troubleshooting procedures.
2) It explains how to read and interpret bulb charts to determine the correct replacement bulb.
3) It provides details about headlight, brake light, and other lighting systems, and describes symptoms that would indicate problems like a faulty bulb or switch.
Chapter 29
The document provides information on preparing an engine block for assembly, including:
1) Describes the types of materials used to manufacture engine blocks and the machining operations required such as boring cylinders.
2) Lists the steps to prepare a block which include aligning main bearing saddles, machining the deck surface, and cylinder boring/honing.
3) Discusses engine block components like cooling passages and how blocks are manufactured through casting and machining processes.
Ch03
The document discusses engine classification and operation. It explains that engines are classified based on factors like cylinder arrangement, valve configuration, fuel type and cooling method. It then describes the four-stroke cycle of a gasoline engine involving the intake, compression, power and exhaust strokes. It also discusses concepts like displacement, compression ratio, torque and horsepower.
Ch08
The document provides information on inspecting and diagnosing engine condition through various tests. It describes how to perform compression tests, cylinder leakage tests, oil pressure tests, and listen for engine noises to determine problems. Visual checks of fluid levels and leaks are also discussed. Causes of common exhaust smoke colors and problems revealed through specific engine noises are explained.
Chapter 13
The document discusses several key concepts related to vehicle braking systems and mechanics:
1) Kinetic energy increases with both an object's mass and speed, requiring braking systems to account for heavier or faster vehicles. Mechanical advantage through leverage multiplies braking force.
2) Temperature measures heat intensity while heat measures quantity, transferred through conduction, convection, or radiation. Insulators impede heat transfer while conductors facilitate it.
3) The scientific method involves observing problems, formulating hypotheses, testing explanations, and verifying solutions to determine a root cause through repeated questioning.
Empfohlen
Chapter 43
The document provides information about diagnosing and repairing various dash instruments and warning systems in vehicles, including:
- Dash warning symbols convey important information through symbols rather than words.
- Analog fuel gauges use electromagnetic coils and sensors to measure fuel level. Computer-controlled dashes receive sensor data from the engine computer.
- Stepper motors precisely control needle movement in most analog gauges.
- Telltale lamps warn of system failures like low oil pressure or overheating.
- Diagnosis procedures test sensors and switches that control warning lights.
- Digital dashes use LED, LCD, or vacuum fluorescent displays controlled by computers.
Chapter 13
The document discusses several key concepts related to vehicle braking systems and mechanics:
1) Kinetic energy increases with both an object's mass and speed, requiring braking systems to account for heavier or faster vehicles. Mechanical advantage through leverage multiplies braking force.
2) Temperature measures heat intensity while heat is a quantity, transferred through conduction, convection, or radiation. Insulators impede heat transfer while conductors facilitate it.
3) The scientific method involves observing problems, formulating hypotheses, testing explanations, and verifying solutions to determine a root cause through repeated questioning.
Chapter 63
The document provides an overview of the eight-step diagnostic process for troubleshooting vehicle issues. It describes the steps as: 1) verifying the problem, 2) performing visual inspections and basic tests, 3) retrieving diagnostic trouble codes, 4) checking for technical service bulletins, 5) examining scan tool data, 6) narrowing the problem to a specific system or cylinder, 7) repairing the issue and determining the root cause, and 8) verifying that the repair addressed the original problem. The document also discusses tools like scan tools and methods for clearing diagnostic trouble codes.
Chapter 42
The document provides information about lighting systems diagnosis and repair, including:
1) It describes how interior and exterior lighting systems work and discusses troubleshooting procedures.
2) It explains how to read and interpret bulb charts to determine the correct replacement bulb.
3) It provides details about headlight, brake light, and other lighting systems, and describes symptoms that would indicate problems like a faulty bulb or switch.
Chapter 29
The document provides information on preparing an engine block for assembly, including:
1) Describes the types of materials used to manufacture engine blocks and the machining operations required such as boring cylinders.
2) Lists the steps to prepare a block which include aligning main bearing saddles, machining the deck surface, and cylinder boring/honing.
3) Discusses engine block components like cooling passages and how blocks are manufactured through casting and machining processes.
Ch03
The document discusses engine classification and operation. It explains that engines are classified based on factors like cylinder arrangement, valve configuration, fuel type and cooling method. It then describes the four-stroke cycle of a gasoline engine involving the intake, compression, power and exhaust strokes. It also discusses concepts like displacement, compression ratio, torque and horsepower.
Ch08
The document provides information on inspecting and diagnosing engine condition through various tests. It describes how to perform compression tests, cylinder leakage tests, oil pressure tests, and listen for engine noises to determine problems. Visual checks of fluid levels and leaks are also discussed. Causes of common exhaust smoke colors and problems revealed through specific engine noises are explained.
Chapter 13
The document discusses several key concepts related to vehicle braking systems and mechanics:
1) Kinetic energy increases with both an object's mass and speed, requiring braking systems to account for heavier or faster vehicles. Mechanical advantage through leverage multiplies braking force.
2) Temperature measures heat intensity while heat measures quantity, transferred through conduction, convection, or radiation. Insulators impede heat transfer while conductors facilitate it.
3) The scientific method involves observing problems, formulating hypotheses, testing explanations, and verifying solutions to determine a root cause through repeated questioning.
Ch07
After studying the chapter, readers should be able to explain the differences between turbochargers and superchargers, describe how boost levels are controlled, and discuss maintenance procedures. The document then provides details on how turbochargers and superchargers work, including describing the components, how boost is generated and controlled, and potential failure points.
Ch04
The document discusses the purpose and function of engine cooling systems. It describes how coolant flows through the engine and radiator, keeping the engine at an optimal temperature for efficiency and preventing issues like sludge buildup. It also explains the role of the thermostat in regulating coolant temperature and discusses testing and replacing thermostats. Proper antifreeze mixture is also important for preventing freezing or overheating.
Chapter 46
This document provides information on safety precautions and procedures for diagnosing and repairing airbag systems. It discusses key components like sensors, inflators, wiring and precautions for working around airbags. The summary is:
The document outlines safety precautions and procedures for working on airbag systems, describing components like sensors and inflators. It discusses diagnosing airbag faults using tools like scan tools and load simulators. Technicians must take precautions like disabling the airbag system and avoiding contacting sensors and inflators when working around deployed airbags.
Chapter 55 Computer Sensors
The document provides information about testing engine coolant temperature (ECT) sensors, including:
1) ECT sensors measure engine coolant temperature which the computer uses to control spark timing, fuel mixture, and other functions.
2) ECT sensors have high resistance when cold and low resistance when hot, exhibiting a negative temperature coefficient.
3) ECT sensors can be tested by measuring resistance with a multimeter and comparing to specifications, or by comparing the temperature displayed on a scan tool to the actual coolant temperature.
Chapter 52
This document discusses various topics related to automotive fuels, including:
1) How the grade of gasoline affects engine performance and tips for purchasing gasoline.
2) How volatility affects driveability and the use of winter and summer gasoline blends.
3) How oxygenated fuels can reduce carbon monoxide exhaust emissions.
4) The advantages and disadvantages of alternative fuels like ethanol, biodiesel, and natural gas.
Chapter 17
The document provides instructions for performing routine vehicle maintenance tasks such as changing engine oil, inspecting and replacing brake fluid, checking fluid levels, and replacing air and cabin filters. It describes the proper procedures and safety precautions for each task and defines important related terms.
Chapter 09
The document discusses different types of hand tools used in automotive service, including wrenches, sockets and ratchets, screwdrivers, hammers, pliers, and how to safely use and maintain them. It explains the differences between open-end, box-end, and combination wrenches, as well as adjustable wrenches, line wrenches, and torque wrenches. The document also covers sockets, extensions, screwdriver types including offset and impact, hammers and mallets, and common pliers.
Chap10
The document discusses commonly used power tools and shop equipment. It identifies tools like air compressors, impact wrenches, die grinders and air drills. It describes equipment like bench grinders, hydraulic presses, engine stands and portable cranes. It emphasizes the importance of safety procedures when using this equipment, such as wearing protective equipment and following manufacturers' guidelines.
Chapter 32
All complete electrical circuits have a power source, circuit protection, a power path, an electrical load, and a ground return path. A short-to-voltage involves a copper-to-copper connection that can affect multiple circuits. A short-to-ground involves a copper-to-steel connection and usually blows a fuse. An open circuit is a break in the path resulting in no current flow.
Chapter 10
The document discusses commonly used power tools and shop equipment. It identifies tools like air compressors, impact wrenches, die grinders and air drills. It describes equipment like bench grinders, hydraulic presses, engine stands and portable cranes. It emphasizes the importance of safety procedures when using this equipment, such as wearing protective equipment and following manufacturers' guidelines.
Sintesis de capitulos
El documento describe los diferentes análisis que debe realizar un emprendedor para identificar oportunidades de negocio, incluyendo el análisis de sectores, competidores, proveedores, clientes, productos sustitutos, necesidades de los consumidores y cambios socioculturales. Explica que al observar estas áreas es posible identificar espacios con necesidades insatisfechas donde una nueva empresa podría generar valor.
Natureza
Liga o som, apaga a luz e relaxa. Reenvia esta mensagem para consciencializar os contatos sobre a importância de proteger o planeta.
Segundo momento MARIA DELIA FERRER PANZA
Este documento presenta el contexto teórico de una investigación sobre la motivación y la política. Revisa trabajos previos sobre este tema y describe teorías clave como la jerarquía de necesidades de Maslow y diferentes tipos de motivación como la motivación por logro, social y autorrealización. También explica el ciclo motivacional y factores que afectan la motivación de los empleados.
U
El documento habla sobre el microprocesador, explicando que es un chip ubicado en una placa de cerámica llamada sustra que distribuye la información a diferentes partes del sistema de forma rápida y efectiva. Describe el proceso de fabricación del microprocesador, incluyendo la aplicación de químicos, colocación con una máquina guiada por luz, y pasar por un horno y baño químico para eliminar residuos. También menciona que los microprocesadores antiguos no se adaptaban bien a la memoria y tarjetas
Boletin nuevas adquisiciones 2011
Este documento presenta una lista de 3 libros sobre oftalmología adquiridos en 2008, 2009 y 2010. También incluye varios materiales comprados para las bibliotecas de la Fundación Universitaria de Ciencias de la Salud en el año 2011, los cuales cubren temas como oftalmología, ginecología, anatomía y administración.
Triangulo nas construções
Os egípcios construíam pirâmides usando instrumentos como o merkhet e o bay para determinar o norte e traçar linhas para os lados das pirâmides. A precisão dos ângulos das pirâmides, como a Grande Pirâmide, é admirada até hoje embora o teorema de Pitágoras ainda não tivesse sido formulado. Telhados usam estruturas triangulares como treliças por serem rígidas.
Silenciodosbons (1)
O documento descreve a história de JK, que superou dificuldades para se tornar presidente do Brasil e modernizar o país, em contraste com Lula, que se orgulha de não ter estudado e cujo filho recebeu 5 milhões de reais sem justificativa.
Sonata ao luar
O documento descreve a vida do compositor Ludwig van Beethoven, que enfrentou momentos de solidão e depressão devido à surdez crescente e falta de apoio. Uma moça cega o inspirou a compor sua famosa "Sonata ao Luar", renovando seu desejo de viver através da música. Anos depois, ele compôs o "Hino à Alegria" em gratidão por ter superado o sofrimento.
Partes de la computadora
Las principales partes de una computadora incluyen el gabinete, la fuente de alimentación, el microprocesador, la placa madre, el lector de CD-ROM, la disquetera, el ratón, el monitor, la tarjeta de video, el disco duro, la memoria RAM, los parlantes y el teclado. Cada parte cumple una función específica como procesar datos, almacenar información temporal o permanentemente, capturar entrada, mostrar salida visual y de audio, y proveer energía a la máquina.
As maos de_albrecht_du_
Dois irmãos no século XV sonhavam em ser pintores, mas só um poderia estudar. Eles lançaram uma moeda para decidir, e o perdedor trabalhou nas minas por 4 anos para pagar os estudos do vencedor, Albrecht Dürer. Quando se formou, Albrecht pagou os estudos do irmão Albert, mas suas mãos foram danificadas nas minas e ele não pôde mais pintar. Em homenagem, Albrecht pintou "Mãos que oram", retratando as mãos deformadas do irmão.
Chap70
The document provides information about various components in hydraulic brake systems, including:
1) A residual check valve keeps slight pressure in the system to prevent air leaks, while proportioning valves limit rear brake pressure to improve balance during hard stops.
2) A pressure-differential switch lights the brake warning light if pressure is lost in one circuit, while a brake fluid sensor does the same for low fluid level.
3) Common valves like metering valves and electronic proportioning systems work to properly time and balance brake pressure between the front and rear.
Chap71
The document discusses brake fluid types and specifications. It explains that brake fluid is made from polyglycol and comes in different DOT classifications (DOT 3, DOT 4, DOT 5, DOT 5.1) with varying characteristics like moisture absorption and boiling points. DOT 3 is most commonly used but DOT 4 provides better protection against corrosion. DOT 5 is silicone-based and doesn't absorb water. The document emphasizes the importance of changing brake fluid regularly to prevent issues from low boiling points caused by absorbed moisture.
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Ch07
After studying the chapter, readers should be able to explain the differences between turbochargers and superchargers, describe how boost levels are controlled, and discuss maintenance procedures. The document then provides details on how turbochargers and superchargers work, including describing the components, how boost is generated and controlled, and potential failure points.
Ch04
The document discusses the purpose and function of engine cooling systems. It describes how coolant flows through the engine and radiator, keeping the engine at an optimal temperature for efficiency and preventing issues like sludge buildup. It also explains the role of the thermostat in regulating coolant temperature and discusses testing and replacing thermostats. Proper antifreeze mixture is also important for preventing freezing or overheating.
Chapter 46
This document provides information on safety precautions and procedures for diagnosing and repairing airbag systems. It discusses key components like sensors, inflators, wiring and precautions for working around airbags. The summary is:
The document outlines safety precautions and procedures for working on airbag systems, describing components like sensors and inflators. It discusses diagnosing airbag faults using tools like scan tools and load simulators. Technicians must take precautions like disabling the airbag system and avoiding contacting sensors and inflators when working around deployed airbags.
Chapter 55 Computer Sensors
The document provides information about testing engine coolant temperature (ECT) sensors, including:
1) ECT sensors measure engine coolant temperature which the computer uses to control spark timing, fuel mixture, and other functions.
2) ECT sensors have high resistance when cold and low resistance when hot, exhibiting a negative temperature coefficient.
3) ECT sensors can be tested by measuring resistance with a multimeter and comparing to specifications, or by comparing the temperature displayed on a scan tool to the actual coolant temperature.
Chapter 52
This document discusses various topics related to automotive fuels, including:
1) How the grade of gasoline affects engine performance and tips for purchasing gasoline.
2) How volatility affects driveability and the use of winter and summer gasoline blends.
3) How oxygenated fuels can reduce carbon monoxide exhaust emissions.
4) The advantages and disadvantages of alternative fuels like ethanol, biodiesel, and natural gas.
Chapter 17
The document provides instructions for performing routine vehicle maintenance tasks such as changing engine oil, inspecting and replacing brake fluid, checking fluid levels, and replacing air and cabin filters. It describes the proper procedures and safety precautions for each task and defines important related terms.
Chapter 09
The document discusses different types of hand tools used in automotive service, including wrenches, sockets and ratchets, screwdrivers, hammers, pliers, and how to safely use and maintain them. It explains the differences between open-end, box-end, and combination wrenches, as well as adjustable wrenches, line wrenches, and torque wrenches. The document also covers sockets, extensions, screwdriver types including offset and impact, hammers and mallets, and common pliers.
Chap10
The document discusses commonly used power tools and shop equipment. It identifies tools like air compressors, impact wrenches, die grinders and air drills. It describes equipment like bench grinders, hydraulic presses, engine stands and portable cranes. It emphasizes the importance of safety procedures when using this equipment, such as wearing protective equipment and following manufacturers' guidelines.
Chapter 32
All complete electrical circuits have a power source, circuit protection, a power path, an electrical load, and a ground return path. A short-to-voltage involves a copper-to-copper connection that can affect multiple circuits. A short-to-ground involves a copper-to-steel connection and usually blows a fuse. An open circuit is a break in the path resulting in no current flow.
Chapter 10
The document discusses commonly used power tools and shop equipment. It identifies tools like air compressors, impact wrenches, die grinders and air drills. It describes equipment like bench grinders, hydraulic presses, engine stands and portable cranes. It emphasizes the importance of safety procedures when using this equipment, such as wearing protective equipment and following manufacturers' guidelines.
Sintesis de capitulos
El documento describe los diferentes análisis que debe realizar un emprendedor para identificar oportunidades de negocio, incluyendo el análisis de sectores, competidores, proveedores, clientes, productos sustitutos, necesidades de los consumidores y cambios socioculturales. Explica que al observar estas áreas es posible identificar espacios con necesidades insatisfechas donde una nueva empresa podría generar valor.
Natureza
Liga o som, apaga a luz e relaxa. Reenvia esta mensagem para consciencializar os contatos sobre a importância de proteger o planeta.
Segundo momento MARIA DELIA FERRER PANZA
Este documento presenta el contexto teórico de una investigación sobre la motivación y la política. Revisa trabajos previos sobre este tema y describe teorías clave como la jerarquía de necesidades de Maslow y diferentes tipos de motivación como la motivación por logro, social y autorrealización. También explica el ciclo motivacional y factores que afectan la motivación de los empleados.
U
El documento habla sobre el microprocesador, explicando que es un chip ubicado en una placa de cerámica llamada sustra que distribuye la información a diferentes partes del sistema de forma rápida y efectiva. Describe el proceso de fabricación del microprocesador, incluyendo la aplicación de químicos, colocación con una máquina guiada por luz, y pasar por un horno y baño químico para eliminar residuos. También menciona que los microprocesadores antiguos no se adaptaban bien a la memoria y tarjetas
Boletin nuevas adquisiciones 2011
Este documento presenta una lista de 3 libros sobre oftalmología adquiridos en 2008, 2009 y 2010. También incluye varios materiales comprados para las bibliotecas de la Fundación Universitaria de Ciencias de la Salud en el año 2011, los cuales cubren temas como oftalmología, ginecología, anatomía y administración.
Triangulo nas construções
Os egípcios construíam pirâmides usando instrumentos como o merkhet e o bay para determinar o norte e traçar linhas para os lados das pirâmides. A precisão dos ângulos das pirâmides, como a Grande Pirâmide, é admirada até hoje embora o teorema de Pitágoras ainda não tivesse sido formulado. Telhados usam estruturas triangulares como treliças por serem rígidas.
Silenciodosbons (1)
O documento descreve a história de JK, que superou dificuldades para se tornar presidente do Brasil e modernizar o país, em contraste com Lula, que se orgulha de não ter estudado e cujo filho recebeu 5 milhões de reais sem justificativa.
Sonata ao luar
O documento descreve a vida do compositor Ludwig van Beethoven, que enfrentou momentos de solidão e depressão devido à surdez crescente e falta de apoio. Uma moça cega o inspirou a compor sua famosa "Sonata ao Luar", renovando seu desejo de viver através da música. Anos depois, ele compôs o "Hino à Alegria" em gratidão por ter superado o sofrimento.
Partes de la computadora
Las principales partes de una computadora incluyen el gabinete, la fuente de alimentación, el microprocesador, la placa madre, el lector de CD-ROM, la disquetera, el ratón, el monitor, la tarjeta de video, el disco duro, la memoria RAM, los parlantes y el teclado. Cada parte cumple una función específica como procesar datos, almacenar información temporal o permanentemente, capturar entrada, mostrar salida visual y de audio, y proveer energía a la máquina.
As maos de_albrecht_du_
Dois irmãos no século XV sonhavam em ser pintores, mas só um poderia estudar. Eles lançaram uma moeda para decidir, e o perdedor trabalhou nas minas por 4 anos para pagar os estudos do vencedor, Albrecht Dürer. Quando se formou, Albrecht pagou os estudos do irmão Albert, mas suas mãos foram danificadas nas minas e ele não pôde mais pintar. Em homenagem, Albrecht pintou "Mãos que oram", retratando as mãos deformadas do irmão.
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Mehr von mcfalltj
Chap70
The document provides information about various components in hydraulic brake systems, including:
1) A residual check valve keeps slight pressure in the system to prevent air leaks, while proportioning valves limit rear brake pressure to improve balance during hard stops.
2) A pressure-differential switch lights the brake warning light if pressure is lost in one circuit, while a brake fluid sensor does the same for low fluid level.
3) Common valves like metering valves and electronic proportioning systems work to properly time and balance brake pressure between the front and rear.
Chap71
The document discusses brake fluid types and specifications. It explains that brake fluid is made from polyglycol and comes in different DOT classifications (DOT 3, DOT 4, DOT 5, DOT 5.1) with varying characteristics like moisture absorption and boiling points. DOT 3 is most commonly used but DOT 4 provides better protection against corrosion. DOT 5 is silicone-based and doesn't absorb water. The document emphasizes the importance of changing brake fluid regularly to prevent issues from low boiling points caused by absorbed moisture.
Chap72
The document provides instructions for bench bleeding a master cylinder and describes the proper brake bleeding sequence. It discusses various brake bleeding methods including manual bleeding, gravity bleeding, and pressure bleeding. Key terms related to brake bleeding such as bleeder valve, brake bleeding, and surge bleeding are defined. The bleeding sequence of starting with the rear wheel farthest from the master cylinder and working inward is described. Methods for loosening stuck bleeder valves like using an impact wrench or applying heat are also outlined.
Chap73
The document discusses wheel bearings, including the types of antifriction bearings used in automotive applications and their components. It describes ball bearings, roller bearings, tapered roller bearings, and sealed front wheel drive bearings. It also covers bearing inspection procedures, greases used for lubrication, and seals used to prevent lubricant leakage and contamination.
Chap74
The document provides information about drum brake components and operation for an ASE certification exam. It discusses drum brake parts like the backing plate, shoes, anchors, and wheel cylinders. It explains how drum brakes work, including self-energizing action and servo brakes. It also outlines advantages like use as parking brakes, and disadvantages such as susceptibility to brake fade from heat.
Chap75
The document discusses drum brake diagnosis and repair procedures. It describes removing the brake drum, inspecting components like the backing plate and brake linings, and overhauling the wheel cylinders. The key steps are removing the drum, inspecting parts for wear, lubricating contact surfaces on the backing plate, and replacing worn springs and hardware.
Chap76
The document provides information about disc brake systems, including:
1) Disc brakes use pistons to squeeze brake pads against a rotating disc brake rotor to stop the wheel. Disc brakes have advantages over drum brakes like better resistance to fade.
2) The main parts of a disc brake system are the caliper, brake pads, rotor, and splash shield. Disc brake pads contain a friction material bonded or riveted to a steel backing plate and may have wear indicators.
3) While disc brakes perform better than drum brakes, they also have some disadvantages like producing more brake dust and less self-energizing than drum brakes.
Chap77
The document provides instructions for visually inspecting and servicing disc brake calipers. It describes how to disassemble a caliper, check components for wear, clean and lubricate parts, and reassemble the caliper. Key steps include removing the caliper, inspecting pads and pistons, cleaning the caliper bore, replacing seals, lubricating with brake fluid, and reinstalling the caliper. Common issues like worn caliper mounts and stuck pistons are also discussed.
Chap78
The document provides information about parking brake systems, including:
- Parking brakes are required to hold a vehicle stationary on a 20% grade and can use drum or disc brake systems.
- Drum parking brakes typically use a lever and strut to apply both shoes, while disc systems may use the caliper.
- Linkages include cables, rods, levers, and equalizers to evenly apply force to both sides.
- Systems must be properly adjusted and inspected for wear like swollen cables.
Chap80
The document provides information about vacuum brake boosters, including:
- Vacuum brake boosters use engine intake manifold vacuum and pressure differential to multiply brake pedal force applied by the driver.
- They contain one or two rubber diaphragms connected to the brake pedal and master cylinder. Opening an atmospheric valve allows air pressure to assist braking.
- Vacuum boosters are tested by depleting vacuum stored in the booster and ensuring the brake pedal drops when the engine is restarted, indicating restored vacuum power assist.
Chap81
The document discusses antilock braking systems (ABS) and their components and functions. It explains that ABS uses wheel speed sensors and electrohydraulic components to monitor wheel slippage and modulate brake pressure to prevent locking and maintain vehicle control during braking. It describes different ABS configurations including four-channel, three-channel, and single-channel systems and how they control braking for different wheels. The purpose of ABS is to allow braking and steering control under slippery conditions.
Chap82
The document provides information to prepare for an ASE Brakes certification test, including describing normal ABS dash lamp operation, visually inspecting ABS systems, retrieving trouble codes, clearing trouble codes, bleeding ABS, and diagnosing ABS-equipped vehicles. It discusses the operation of brake warning lamps, performing diagnostic procedures, diagnosing common ABS components like wheel speed sensors, and investigating various ABS systems from manufacturers like Bosch, Teves, and Delphi.
Halderman ch108 lecture
The document discusses electronic stability control (ESC) systems. ESC uses sensors and individual wheel braking to help drivers maintain control of their vehicle during maneuvers like sharp turns or on slippery roads. It works by applying brakes when it detects loss of traction or if the vehicle is not following the driver's intended path. Traction control is similar but focuses on preventing wheel spin during acceleration. Both systems use wheel speed, steering, lateral acceleration and yaw rate sensors along with anti-lock braking to keep the vehicle stable.
Halderman ch107 lecture
The document discusses ABS diagnosis and repair procedures. It outlines the steps to diagnose an ABS problem which include verifying the customer concern, performing a visual inspection, checking for diagnostic trouble codes, completing the repair, and verifying the repair. It also discusses retrieving and clearing diagnostic trouble codes, diagnosing wheel speed sensors, and using scan tools for OBD-II ABS diagnosis.
Halderman ch106 lecture
The document discusses the components and operation of antilock braking systems (ABS). ABS uses wheel speed sensors to monitor wheel slippage and an electronic controller to modulate brake pressure and prevent wheel lockup. It controls wheel slippage through electrohydraulic units to maintain optimal tire traction and braking force. The document describes various ABS configurations, components, functions, and limitations to provide maximum vehicle control and stopping power.
Halderman ch105 lecture
The document discusses vacuum brake boosters, including how they operate and can be tested. It describes the key components of a vacuum booster like the diaphragm, control valve, and check valve. It explains how vacuum from the intake manifold is used to multiply brake pedal force. Tests are outlined to check for booster leaks and proper operation. Adjustment of the pushrod between the booster and master cylinder is also covered.
Halderman ch103 lecture
The document discusses parking brake operation, diagnosis, and service. It describes how parking brakes work on rear drum and disc brake systems. Parking brakes are activated through foot pedals, levers, or handles using cables or rods. The document explains different types of parking brake mechanisms for drum brakes, rear disc auxiliary drum brakes, and caliper-actuated disc parking brakes. Adjustment and service procedures are also covered.
Halderman ch101 lecture
This document provides an overview of disc brake systems, including:
- The main components of disc brakes and how they function to stop rotation of the brake disc.
- Different types of disc brake caliper designs, including fixed, floating, and sliding calipers.
- Construction and operation of brake pads, rotors, and other disc brake parts.
- Techniques for diagnosing and repairing disc brake systems.
Halderman ch099 lecture
The document discusses drum brakes, including their components, operation, advantages, and disadvantages. It describes drum brake parts such as the backing plate, shoe anchors, wheel cylinders, brake shoes, and linings. It explains the differences between primary and secondary brake shoes and how drum brakes use self-energizing and servo action to provide stopping power. The document also discusses drum brake fade issues and methods for adjusting drum brakes.
Halderman ch097 lecture
The document discusses various methods for bleeding hydraulic brake systems, including:
- Bench bleeding the master cylinder before installation
- Bleeding the master cylinder on the vehicle by opening the bleeder screw while slowly pumping the brake pedal
- Methods for loosening stuck bleeder valves such as tapping with a hammer or using heat
- The proper brake bleeding sequence from farthest to closest wheel cylinder
- The manual bleeding procedure using an assistant and clear tubing to see air bubbles
- Vacuum bleeding which uses suction to bleed the system with one technician