Standard

AUT 210 - AUTOMATIC TRANSMISSION REPAIR

Course Description

Introduces automatic transmission hydraulic/mechanical operations, transmission repair, and automatic transmission hydraulic/mechanical diagnosis. Topics include: removal, disassembly, and reinstallation; oil pump and converter; gear train, shafts, bushings and case; friction and reaction units.

Competency Areas		Hours
		Class	5
Removal, Disassembly, and Reinstallation		D. Lab	0
Oil Pump and Converter		P. Lab/O.B.I.	6
Gear Train, Shafts, Bushings and Case		Credit	7
Friction and Reaction Units
Prerequisite:	AUT 144
Corequisite:

Course Guide

Competency		After completing this section, the student will:	Hours
			Class	D.Lab	P.Lab/ O.B.I.
Removal, Disassembly, and Reinstallation			20		30
		Remove and reinstall transmission and torque converter (rear-wheel drive). Remove and reinstall transaxle and torque converter assembly. Disassemble, clean, and inspect transmission/transaxle. Inspect, measure, clean, and replace valve body (includes surfaces and bores, springs, valves, sleeves, retainers, brackets, check-balls, screens, spacers, and gaskets), and torque valve body bolts. Inspect servo bore, piston, seals, pin, spring, and retainers; determine necessary action. Inspect accumulator bore, piston, seals, spring, and retainer; determine necessary action. Assemble transmission/transaxle..
Oil Pump and Converter			10		10
		Inspect converter flex plate, attaching parts, pilot, pump drive, and seal areas. Measure torque converter endplay and check for interference; check stator clutch. Inspect, measure, and replace oil pump assembly and components. Check torque converter and transmission cooling system for contamination.
Gear Train, Shafts, Bushings and Case			10		10
	Measure endplay or preload; determine necessary action. Inspect, measure, and replace thrust washers and bearings. Inspect oil delivery seal rings, ring grooves, and sealing surface areas. Inspect bushings; replace as needed. Inspect and measure planetary gear assembly (includes sun, ring gear, thrust washers, planetary gears, and carrier assembly); replace as needed. Inspect case bores, passages, bushings, vents, and mating surfaces; determine necessary action. Inspect transaxle drive, link chains, sprockets, gears, bearings, and bushings; perform necessary action. Inspect, measure, repair, adjust or replace transaxle final drive components. Inspect and reinstall parking pawl, shaft, spring, and retainer; determine necessary action.
Friction and Reaction Units			10		10
	Inspect clutch drum, piston, check-balls, springs, retainers, seals, and friction and pressure plates; replace as needed. Measure clutch pack clearance; adjust as needed. Air test operation of clutch and servo assemblies. Inspect roller and sprag clutch, races, rollers, sprags, springs, cages, and retainers; replace as needed. Inspect bands and drums; adjust or replace as needed.

Suggested Resources

Books

Duffy, J. E. (2000). Modern AutomotiveTechnology. South Holland, IL: Goodheart-Willcox.

Erjavec, J. (2000). Automotive Technology (3^rd ed.). Albany, NY: Delmar.

Erjavec, J. (2000). Automotive Technology Workbook (3^rd ed.). Albany, NY: Delmar.

Gilles, T. (1999). Automotive Service Inspection, Maintenance, and Repair (1^st ed.). Albany, NY: Delmar

Toboldt, W. K., & Johnson, L. (1995). Automotive Encyclopedia. South Holland, IL: Goodheart-Willcox.

Webster, J., & Owen, C. E. (2000). Basic Automotive Service & Systems (2^nd ed.).

Albany, NY: Delmar.