10070184Hydraulics 2
Course Information
Description
This course provides instruction on the 6, 7,8 and 9000 thru respective "R" models in each family size of John Deere tractor. The component configuration and operational characteristics of these tractors will be introduced. Students will test, disassemble/service and repair axial piston pumps, SCV's and other components of the hydraulic system. Students will follow the technical manual diagnostic procedures to check out and troubleshoot the hydraulic system. Advanced hydraulic components will also be discussed. John Deere's Hydraulic Certification test will also be administered with 80% or better to pass!
Total Credits
3
Course Competencies
  1. Hydraulics Systems Overview - Core Competencies **To successfully complete the Hydraulic Certification Test, a John Deere Tech Student needs to successfully comprehend an apply the following Hydraulic concepts.**

  2. Summarize the operation of the pressure on demand hydraulic system of each tractor model

  3. Examine tractor hydraulic schematics
    Assessment Strategies
    using hydraulic system schematic
    by written exam for hydraulic system
    by selecting which components to discuss
    by identifying 8 out of 10 selected components
    Criteria
    you identify hydraulic components shown on the hydraulic schematic
    you demonstrate the hydraulic system oil flow from the schematic
    you use hydraulic schematic to describe system operation

  4. Identify location of hydraulic system components on the 6000, 7000, and 8000 series John Deere tractors
    Assessment Strategies
    with use of tractors
    with use of numbered identification tags
    with use of component identification chart
    Criteria
    you locate the hydraulic system components of the 6000 series tractor
    you locate the hydraulic system components of the 7000 series tractor
    you locate the hydraulic system components of the 8000 tractor

  5. Demonstrate personal safety when working with hydraulic systems and high pressure oil
    Assessment Strategies
    given personal safety equipment
    in a simulated work environment
    given related tools and measurement equipment
    through visual observation
    on a written examination
    Criteria
    you demonstrate personal safety when working with pressure gauges and hydraulic flow meters
    you meet industry standards when working with hydraulic test equipment
    you complete shop safety exam with 80% minimum score

  6. Install gauges and perform system tests
    Assessment Strategies
    using 6, 7, and 8000 series tractors
    given hydraulic test gauges
    using tractor test procedure
    given tractor technical manuals
    Criteria
    you install test gauges on tractor test ports
    you measure and record system pressures
    you compare measured pressures to specifications

  7. Disassemble and reassemble pumps, valves, and selected other hydraulic components
    Assessment Strategies
    using lab model test pumps
    given special pump and valve tools
    using lab pump test bench
    by comparing test pump output to specifications
    Criteria
    you disassemble pumps and valves
    you disassemble brake and steering motors
    you reassemble pumps and valves according to repair manual specifications
    you reassemble brake and steering motors

  8. Investigate hydraulic and hitch system diagnostic codes
    Assessment Strategies
    using 6000, 7000 and 8000 lab tractors
    given special wiring loops and bugs
    through visual observation
    through written report
    Criteria
    you place ccu in diagnostic mode
    you recall stored codes
    you compare diagnostic codes to trouble shooting guides
    you identify problem components

  9. Identify Hydrostatic Powertrain components and diagnose and test them

  10. Explain and apply Pascals Law

  11. Understand basic Hydraulic Principles and Fundamentals. Advantages of Hydraulics, Pressure/Force/Area, Hoarsepower, Velocity/Speed

  12. List the differances between open and closed center hydraulic systems

  13. Describe operation of a pressure flow compenstated hydraulic system

  14. List the steps of basic diagnostic and testing of hydraulic systems

  15. Operate and read results from test equipment and digital pressure guages

  16. Correctly read hydraulic schematics from a technical manual or Service Advisor

  17. Correctly obtain information from from a material saftey data sheet (MSDS)

  18. Understand Hydraulic Saftey, Hazardous Inventories, Container Warning Labels, and Handling of Hazardous Materials

  19. Properly connect hydraulic cylinders on John Deere tillage tools and implements

This Outline is under development.