DSL 555 - Power Trains II

1. Demonstrate knowledge of Torque Converters
   1. Identify the three main components
   2. Understand torque multiplication
   3. Understand power flow through converter
   4. Explain Vortex flow
   5. Explain rotary flow
   6. Identify the components in a four element torque converter
   7. Explain stall speed
   8. Explain the operation of an impeller clutch torque converter
   9. Demonstrate an understanding of a torque divider torque converter
2. Demonstrate knowledge of planetary drive transmissions on a written test
   1. Identify parts of a planetary gear set
   2. Understand torque multiplication
   3. Demonstrate knowledge of how a multiple disk clutch works
   4. Understand power flow through an Allison AT/MT transmission
   5. Understand the hydraulic circuits of an Allison AT/MT transmission
3. Demonstrate knowledge of Allison MD transmissions on a written test
   1. Identify the clutches found in the rotating clutch module
   2. Identify those clutches that are stationary
   3. Explain the differences between stationary and rotating clutches
   4. Demonstrate how to measure clutch clearances
   5. Demonstrate how to adjust shaft clearances internally on the transmission
   6. Explain hydraulic flow through the valve module
   7. Demonstrate the ability to test main oil pressure
   8. Explain what pressure should be recorded at the main pressure tap for each gear
   9. Understand what control main pressure is and how it is regulated
   10. Retrieve fault codes using the shift control panel
   11. Perform a stall test
   12. Monitor operating conditions using software and PC
   13. Demonstrate ability to take apart and reassemble the transmission by modules
4. Demonstrate knowledge of heavy equipment powershift transmission
   1. Understand power flow through transmission
   2. Explain hydraulic circuits
   3. Demonstrate knowledge of directional clutches and speed clutches
   4. Explain the purpose of the pressure differential valve
   5. Explain how neutral is achieved
   6. Identify high and low clutches
   7. Identify solenoids used for each gear
   8. Demonstrate ability to retrieve clutch application pressures
   9. Demonstrate ability to test solenoids used to apply clutches
   10. Perform clutch calibration procedure
   11. Retrieve clutch calibration values
   12. Explain park brake operation
   13. Explain the function of the clutch pedal
5. Demonstrate knowledge of hydraulic drive axles
   1. Identify components
   2. Explain power flow
   3. Explain controls for operation
   4. Explain operation of an open loop system
6. Demonstrate knowledge of hydrostatic drives
   1. Identify components
   2. Explain how components work
   3. Explain operation of a closed loop system
   4. Understand testing of system and results
7. Demonstrate knowledge of control by wire hydrostatic systems
   1. Identify the components needed in the system
   2. Follow electrical diagrams to determine component locations on equipment
   3. Perform electrical checks on wiring harness
   4. Use manufactures software and demonstrate ability to calibrate pump displacements
   5. Demonstrate ability to calibrate hand controls and/or foot controls