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Clicking on the title of this section will take you to the main Films on Demand interface.
FOD has multiple programs that seem relevant to AST 1302. They are linked below with a parentheses count of segments in each series, and a brief description of the program.
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- This video illustrates the engineering and operating principles of helical gear manual transmissions with help from high-energy graphics, animation, and live-action footage. Students will learn about the purpose and construction of housings, gaskets, seals, thrust washers, bearings, synchronizers, drive gears, shift mechanisms, and other components. With an overview of gear ratios and an illustration of power flow through the transmission gears, the program also compares the construction of different manual transmission and transaxle designs. In particular, the video explores automated manual transmission technology, which uses computer control and electric solenoids or servomotors to actuate large helical gearsets.
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- This video provides an in-depth technological grounding that will enable students to troubleshoot and repair systems which make up today’s automatic transmissions. Topics include transmission case construction; transmission hydraulics; electronic components, in particular the onboard computer—called the electronic control module, or ECM—and how it sends signals to solenoids in the transmission valve body; the torque converter and its constituent parts; the holding devices that engage the different gearsets, including friction disks, bands, and one-way clutches; and the planetary gearsets, including sun, planet, carrier, and ring gears, as well as the parking pawl used to lock the transmission output shaft. A detailed section on various kinds of hybrid automatic transmission is also presented.
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- With all major car manufacturers now producing hybrid gas-electric vehicles, it is critically important that automotive students understand the design and function of hybrid technology and the differences between various hybrid systems. This video helps develop that understanding through the use of dynamic 3-D animation and detailed live-action visuals. A helpful summary opens the program, explaining the basics of hybrid vehicle technology and its dual use of piston engine and electric traction motor. In-depth topics include the battery stack and its contents of high-efficiency lithium-ion modules; the dynamotor with its brushless armature and multi-coil stator assembly; the PCM, or power control module, which regulates current flow to the battery and dynamotor; and the cable system which connects those components. Additional video sections focus on all-electric drive mode, regenerative braking, and other unique aspects of HV operation, as well as the various configurations of hybrid drive trains.
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- Demonstrating a wide range of standard shop techniques as well as a few handy tricks of the trade, this video introduces viewers to the operation and service of typical automotive and light-truck-type clutches. Beginning with an overview of the theory and construction of clutches, the program then shows how to inspect, diagnose, remove, and replace clutch components efficiently. The inspection chapter focuses on observing pedal free play, checking free height, and listening for abnormal bearing-related noises during a test-drive. Instruction on clutch removal highlights removal of the U-bolts, securing the shaft to the rear differential yoke, sliding the slip joint out of the rear of the transmission, using an extension or transmission jack, removing the rear crossmember bolts, unbolting the shifter, removing the clutch housing, and more. Inspecting the flywheel and the clutch pilot bearing and replacing the pilot are covered. A complete section on clutch installation is also included.
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Viewers of this program will learn about basic CV components, including inner-stub, outer-stub, and interconnecting shafts, as well as the various types of CV joints and joint boots. An in-depth section on joint inspection depicts both road testing and shop analysis. Another chapter demonstrates axle removal, from loosening the axle nut to taking off the steering tie rod (and possibly the inner-stub-shaft snap rings or circlips), while step-by-step sections on CV joint service and axle installation are also featured.
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- A car’s differential must provide torque to propel the vehicle, even when the wheels and axles are turning at different speeds. Various differential designs are used to accomplish this and other functions in rear-wheel drive, front-wheel drive, and all-wheel drive vehicles. This video guides students through various differential and drive designs and summarizes how each one operates. Viewers are shown the basic workings of an enclosed drive shaft and of a solid rear-axle assembly, and how either solid or flexible drive axles link the differential to the drive wheels. Subsequent chapters shed light on ring and pinion gears, open differentials (including the set of spider gears mounted inside the carrier), limited slip or positraction differentials, Torsen-Gleason differentials using worm gears to produce a no-slip drive setup, and computer-controlled electric clutch differentials. Various all-wheel drive designs are also discussed.
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- Since the differential must transfer engine power to both drive axles, it is exposed to high stress loads. After prolonged driver use (or abuse), gears, bearings, shafts, and other parts can fail. Therefore, well-trained technicians are needed to service the front and rear differentials found in today’s vehicles. This video shows how to diagnose common differential and drive-axle problems and perform essential services and repair operations. An overview of differential disassembly shows how to remove the drive shaft and axle and unbolt the pinion gear assembly. Next, positraction service is illustrated, including removal of the roll pins or bolts that secure the spider gear shaft as well as any clutch pack guide inserts. The video concludes with differential reassembly, from installing new friction disks to checking the ring and pinion gear teeth contact.
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