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# Chapter 02 - Chapter 2 Drive Train Theory/Typical Shop...

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Chapter 2 Drive Train Theory/Typical Shop Procedures 9

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Upon completion and review of this chapter, the student should be able to: Classroom Manual Objectives Identify the major components of a vehicle's drive train. State the purpose of a transmission. Describe the major differences between a transmission and a transaxle. Explain how a set of gears can increase torque. Define and determine the ratio between two meshed gears. Describe the basic operation of a planetary gearset. State the purpose of a torque converter assembly. Describe the differences between a typical FWD and RWD car. State the purpose of a differential. Identify and describe the various gears used in modern drive trains. Identify and describe the various bearings used in modern drive trains. Shop Manual Objectives List the basic units of measure for length, volume, and mass in the two measuring systems. Convert measurements between the SAE and the metric systems of units. Describe the different types of fasteners used in the automotive industry. Identify the major measuring instruments and devices used by technicians. Explain what these instruments and devices measure and how to use them. Describe the proper procedure for measuring with a micrometer. Read a vernier scale. Describe the measurements normally taken by an automatic transmission technician. Using math and measuring instruments, determine the corrective action to take when end clearances are not within specifications. Describe the different sources for service information that are available to technicians. Describe the requirements for ASE certification as an automotive technician and a master auto technician. 10 Instructor’s Guide to Accompany Today’s Technician: Automatic Transmissions & Transaxles 3E
Overview This chapter in the classroom manual covers the four parts of the drive train theory, including the engine, transmission, drive line, and drive axles. This chapter in the shop manual covers the basic tools and their uses. It also covers the two most commonly used measurements in the automotive field. Reading Assignments Classroom Manual, pages 13-42 Shop Manual, pages 43-67 Terms to Know ASE Backlash Ball bearing Bevel gear Bolt head Bolt shank Bushing Constant velocity joint Diagnosis Dial caliper Dial indicator Differential Direct drive Downshifting Drive shaft End play Engine load Engine torque Feeler gauge Fillet Flat-rate Flex-plate Flywheel Gear ratios Grade marks Helical gear Herringbone gear Horsepower Hypoid gear Limited-slip Machinist’s rule Meshing Meter Micrometer Millimeter Neutral

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