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Dec 14, 2024
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DSL 555 - Power Trains II Credits: 5 Lecture Hours: 1 Lab Hours: 8 Practicum Hours: 0 Work Experience: 0 Course Type: Voc/Tech Instruction will include the basics of automatic transmissions, power shift transmissions, final drives and hydrostat drives. Prerequisite: DSL 546 , DSL 606 Competencies
- Demonstrate knowledge of Torque Converters
- Identify the three main components
- Understand torque multiplication
- Understand power flow through converter
- Explain Vortex flow
- Explain rotary flow
- Identify the components in a four element torque converter
- Explain stall speed
- Explain the operation of an impeller clutch torque converter
- Demonstrate an understanding of a torque divider torque converter
- Demonstrate knowledge of planetary drive transmissions on a written test
- Identify parts of a planetary gear set
- Understand torque multiplication
- Demonstrate knowledge of how a multiple disk clutch works
- Understand power flow through an Allison AT/MT transmission
- Understand the hydraulic circuits of an Allison AT/MT transmission
- Demonstrate knowledge of Allison MD transmissions on a written test
- Identify the clutches found in the rotating clutch module
- Identify those clutches that are stationary
- Explain the differences between stationary and rotating clutches
- Demonstrate how to measure clutch clearances
- Demonstrate how to adjust shaft clearances internally on the transmission
- Explain hydraulic flow through the valve module
- Demonstrate the ability to test main oil pressure
- Explain what pressure should be recorded at the main pressure tap for each gear
- Understand what control main pressure is and how it is regulated
- Retrieve fault codes using the shift control panel
- Perform a stall test
- Monitor operating conditions using software and PC
- Demonstrate ability to take apart and reassemble the transmission by modules
- Demonstrate knowledge of heavy equipment powershift transmission
- Understand power flow through transmission
- Explain hydraulic circuits
- Demonstrate knowledge of directional clutches and speed clutches
- Explain the purpose of the pressure differential valve
- Explain how neutral is achieved
- Identify high and low clutches
- Identify solenoids used for each gear
- Demonstrate ability to retrieve clutch application pressures
- Demonstrate ability to test solenoids used to apply clutches
- Perform clutch calibration procedure
- Retrieve clutch calibration values
- Explain park brake operation
- Explain the function of the clutch pedal
- Demonstrate knowledge of hydraulic drive axles
- Identify components
- Explain power flow
- Explain controls for operation
- Explain operation of an open loop system
- Demonstrate knowledge of hydrostatic drives
- Identify components
- Explain how components work
- Explain operation of a closed loop system
- Understand testing of system and results
- Demonstrate knowledge of control by wire hydrostatic systems
- Identify the components needed in the system
- Follow electrical diagrams to determine component locations on equipment
- Perform electrical checks on wiring harness
- Use manufactures software and demonstrate ability to calibrate pump displacements
- Demonstrate ability to calibrate hand controls and/or foot controls
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