Vehicle: Automatic Transmissions

This training brings theory and procedures to life, putting learners one step closer to successful diagnosis and repair of all types of transmissions and transaxles. Automatic transmissions are the focus of this training which features an introduction to drivetrain theory, hydraulic torque multipliers, common automatic transmissions, and hydraulic systems.

Actual automotive technicians, authentic automotive repair shops, and late-model vehicles are used to ensure that information is presented as realistically as possible. Safety is stressed in each lesson, ensuring that proper procedures are followed in the automotive shop.

Training for anyone interested in pursuing a career or furthering their career as an Automotive Technician.

• Drive Train Theory and General Operation
  • Introduction
  • Drive train theory
  • Torque multiplication
  • Basic gear theory
  • Gear ratios
  • Transmissions
  • Transmission gears
  • Basic operation
  • Electronic controls
  • Transmission and transaxle housings
  • Planetary gearing
  • Hydraulic basics
• Hydraulic Torque Multipliers and Planetary Gear Sets
  • Introduction
  • Torque converters
  • Torque converter operation
  • Stall speed
  • Direct drive
  • Planetary gearsets and shafts
  • Gear reduction
  • Overdrive
  • Direct drive
  • Reverse
  • Neutral
  • Compound planetary gear sets
  • Simpson gear sets
• Common Automatic Transmissions
  • Introduction
  • Simpson gear train
  • Simpson planetary gear
  • Holding devices
  • Apply devices
  • Power flow in park or neutral
  • Power flow in first gear
  • Power flow in second gear
  • Power flow in third gear
  • Power flow in fourth gear
  • Four speed transaxles
  • Power flow in neutral
  • Power flow in first gear
  • Power flow in second gear
  • Power flow in third gear
  • Power flow in fourth gear
  • Ravigneaux gear trains
• Hydraulic Systems and Electronic Automatic Transmissions
  • Introduction
  • Laws of hydraulics
  • Oil pumps
  • Control devices
  • Check valves
  • Relief valves
  • Orifices
  • Spool valves
  • Control, relay and regulator valves
  • Valve bodies
  • Mainline pressure
  • Throttle pressure
  • Governor pressure
  • Pressure regulator valves
  • Governors
  • Load sensors
  • Throttle cables
  • Shift valves
  • Oil circuits

• Understand the role of the transmission in maximizing engine performance and efficiency.
• Understand the concept of torque multiplication.
• Explain how gears are used to multiply torque.
• Identify the components in an automatic transmission.
• Identify the hydraulic principles that are used to operate an automatic transmission.
• Describe the operation of a torque converter.
• Explain the role of the torque converter in multiplying torque.
• Understand the concept of stall speed in the operation of the automatic transmission.
• Explain how a planetary gear set is used to provide different gears.
• List the holding members of a planetary gearset in an automatic transmission.
• Identify the members of a simple planetary gearset.
• Identify the components in a compound planetary gearset.
• Identify the apply and holding members of a rear wheel drive transmission.
• Identify the apply and holding members of a front wheel drive transaxle.
• Identify the different types of planetary gearsets.
• Identify the hydraulic principles that are applied to automatic transmissions.
• List the components in an automatic transmission that pressurize, route and react to hydraulic fluid.
• Describe the different type of oil pumps that are used in automatic transmission.
• Define the different types of hydraulic valves used in an automatic transmission.
• Explain the operation of the solenoids in an electronically controlled automatic transmission.