Standard |
DET 220- Automatic Transmissions
Introduces automatic transmissions used on medium/heavy duty trucks. Topics include: torque converters and automatic transmissions. Classroom and lab instruction on testing equipment to perform diagnosis and troubleshooting is highly emphasized.
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Competency Areas |
Hours |
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Torque Converters |
Class |
2 |
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Automatic Transmissions |
D. Lab |
0 |
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P. Lab/O.B.I. |
8 |
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Credit |
4 |
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Prerequisite: |
DET 125 |
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Corequisite: |
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Course Guide |
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Competency |
After completing this section, the student will: |
Hours |
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Class |
D.Lab |
P.Lab/ O.B.I. |
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TORQUE CONVERTERS |
10 |
0 |
40 |
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Understand terms and definitions |
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Understand how a basic fluid coupling works |
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Identify parts of a torque converter |
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Describe torque converter parts and their functions |
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Define types of fluid flow in torque converters and their characteristics |
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Describe operation of a twin-turbine torque converter |
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Describe operation of a lockup clutch converter |
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Drain and refill a torque converter |
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Check for oil leaks |
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Test a torque converter |
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AUTOMATIC TRANSMISSIONS |
10 |
0 |
40 |
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Understand terms and definitions |
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Identify major parts of an automatic transmission |
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Describe steps in oil pump and regulating valve operation |
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Describe low range, high range, and reverse range functions in an automatic transmission |
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Understand characteristics of automatic transmission fluid |
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Describe procedure for properly checking automatic transmission fluid |
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Understand in-vehicle transmission tests and their functions |
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Identify parts of a planetary gear system |
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Describe planetary gear system operation |
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Describe speed, torque, and directional functions of an automatic transmission and ways they are accomplished |
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Identify tools and equipment required for automatic transmission overhaul |
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Describe parts normally replaced at each automatic transmission overhaul |
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Understand important elements of cleaning and inspection |
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Describe special considerations for bearing inspection and handling |
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Identify transmission components and their inspection requirements |
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Describe make-ready procedures for removing or installing an automatic transmission |
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Understand general rules for determining whether to reuse or replace a part |
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Remove an automatic transmission for a vehicle |
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Disassemble an automatic transmission into subassemblies |
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Check end play on a torque converter assembly |
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Disassemble, clean and inspect a torque converter assembly |
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Rebuild a stator assembly |
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Reassemble a torque converter assembly |
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Disassemble, clean, inspect, and reassemble a modulated lockup valve assembly |
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Disassemble, clean, inspect, and reassemble a low shift valve assembly |
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Disassemble, clean, inspect, and reassemble a control valve body assembly |
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Disassemble, clean, inspect, and reassemble an oil pump and front support assembly |
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Disassemble, clean, inspect, and reassemble a forward clutch and turbine shaft |
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Disassemble, clean, inspect, and reassemble a fourth clutch |
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Disassemble, clean, inspect, and reassemble a center support assembly |
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Disassemble, clean, inspect, and reassemble gear unit and main shaft assembly |
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Disassemble, clean, inspect, and reassemble an output shaft |
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Disassemble, clean, inspect, and reassemble a rear cover assembly |
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Disassemble, clean, inspect, and reassemble an adapter housing and first clutch piston |
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Disassemble, clean, inspect, and reassemble a transmission housing |
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Reassemble an automatic transmission |
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Install an automatic transmission |
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Test an automatic transmission |
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Make shift speed adjustments on an automatic transmission |
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Suggested Resources |
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Mitchell Information Systems. (2002). “Mitchell on Demand”. San Diego, California.
Multistate Academic and Vocational Curriculum Consortium. (2002). “Diesel Technology Series”. Stillwater, Oklahoma.
Norman, Andrew & others. (2001). Diesel Technology. Tinley Park, Illinois: Goodheart-Willcox.
Norman, Andrew & others. (2001). Heavy Duty Truck Systems. Albany, New York: Delmar Publishing.
Norris, David & Tony Elkins. (2002). Automotive Information Specialists. Gulf Breeze, Florida: Motor/Alldata.