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Troubleshooting and maintenance of automatic gearbox
Objectives

 

At the end of the course participants will able:

  • To know basic principles of the automatic transmission.
  • To know the inner construction of automatic gearbox.
  • To know the automatic transmission components and its function.
  • To know the hydraulic principles and pressure.
  • To know different types of electronic sensors.
  • To know hydraulic circuit problems.
  • To know electronic circuit problems.
  • To assemble and disassemble and overhaul the automatic gearbox.
  • To know industrial safety instructions. 
  • To use different tools and equipments professionally.

Outlines

Day 1:            THEORTICAL [1]

    • Introduction
    • Function of gearbox
    • Automatic transmission components.
    • Hydraulic control unit
    • Hydraulic coupling
    • Torque converter function
    • Gears design and benefits
    • Automatic transmission advantages and disadvantages.

Day 2:            THEORTICAL [2]

  • Planetary gear set
  • Gear ratios
  • Hydraulics basics
  • Hydraulic pressure and force
  • Hydraulic motion
  • Hydraulic pressure regulation
  • Automatic transmission fluid (ATF)
  • Oil cooling circuit

Day 3:            THEORTICAL [3]

  • Automatic transmission hydraulic circuit
  • Main pressure
  • Throttle pressure
  • Governor pressure
  • Hydraulic circuit for 3 forward speeds
  • Hydraulic pump and types
  • Booster valve
  • Shift valve
  • Manual valve
  • Spool valve

 

Day 4:            PRACTICAL [1]

  • Workshop safety rules
  • Tools and equipments
  • AOD 4R70W designation meaning
  • Disassembly procedure

Day 5:            THEORTICAL [4]

    • Servo mechanisms and functions
    • Brake bands and types
    • How it works
    • Multi disc clutches
    • Holding clutches
    • One way clutch
    • Torque converter details
    • Coupling point
    • Lock-up clutch / torque converter clutch

Day 6:            PRACTICAL [2]

    • Disassembly of input shaft
    • Disassembly of clutches
    • Disassembly of brake bands
    • Snap rings and oil seals.

Day 7:            THEORTICAL [5]

    • Planetary gear sets
    • Simpson and Ravigneaux gear assemblies
    • Manual valve
    • Important notes
    • Electronically controlled automatic gearbox
    • Sensors and types
    • Electronic control unit
    • Solenoids

Day 8:            PRACTICAL [3]

    • Disassemble of valve body
    • Inspection of each part
    • Locate the failure
    • Re-assemble of parts

 

Day 9:            THEORTICAL [6]

    • Troubleshooting and maintenance part 1
    • Noting the different symptoms
    • Solving different problems

Day 10:          THEORTICAL / PRACTICAL

    • Troubleshooting and maintenance part 2
    • Automatic transmission state of art and latest technology
    • Revision

Questions and evaluati

Who Should Attend

  • Mechanic technician and gearbox specialist.
  • Service advisors.
  • Mechanical service staff (engineers – technicians).
  • Service quality controllers.

Duration

10 Days

Start Date End Date Country City

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