10070225Hydraulics 2
Course Information
Description
This course component configuration and operational characteristics of this equipment will be introduced. Students will service and rebuild the pump, control valves and other components of the hydraulic system. Students will follow the technical manual diagnostic procedures to troubleshoot hydraulic system problems.
Total Credits
3
Course Competencies
  1. Demonstrate safe work habits when working on tractor and machine hydraulic systems
    Assessment Strategies
    Skill demonstration in shop
    Criteria
    Wear steel-toed shoes, safety glasses, long sleeved top, uniform type pants or jeans
    Clothing is not loose or ripped
    Jewelry does not interfere with shop tasks
    Hair is tied back to prevent accident with moving equipment
    Clear shop area for safely raising and supporting vehicle or equipment
    Identify safety items and hazards

  2. Summarize the operation of the pressure on demand hydraulic system
    Assessment Strategies
    Skill demonstration in shop and/or test
    Criteria
    Compare pressure on demand systems to other hydraulic systems
    Identify key components of a pressure-on-demand hydraulic system such as pump, accumulator, control valves, actuators, reservoir, filters
    Explain how pressure is generated, stored, and released

  3. Interpret equipment hydraulic schematics
    Assessment Strategies
    Written Product, Test
    Criteria
    Use hydraulic system schematic
    Identify hydraulic components shown on the hydraulic schematic
    Demonstrate the hydraulic system oil flow from the schematic
    Describe system operation

  4. Identify location of hydraulic system components
    Assessment Strategies
    Skill demonstration in shop
    Criteria
    Use tractors
    Use numbered identification tags
    Use component identification chart
    Locate physical placement of components within a system
    Connect the component's name and location to its purpose

  5. Install gauges and perform system tests
    Assessment Strategies
    Skill demonstration in shop
    Criteria
    Use tractor test procedure
    Use tractor technical manuals
    Install test gauges on tractor test ports
    Measure and record system pressures
    Compare measured pressures to specifications

  6. Disassemble and reassemble pumps, valves, and selected other hydraulic components
    Assessment Strategies
    Skill demonstration in lab
    Criteria
    Follow repair manual specifications
    Use special pump and valve tools
    Use lab or live components
    Disassemble pumps and valves
    Disassemble brake and steering motors
    Reassemble pumps and valves
    Reassemble brake and steering motors
    Use lab pump test bench or machine
    Compare test pump output to specifications
    Performance meets instructor guidelines

  7. Connect hydraulic cylinders on integral and semi-integral tools and implements
    Assessment Strategies
    Test, Skill demonstration in shop
    Criteria
    Identify types of hydraulic cylinders used on integral and semi-integral tools and implements such as single-acting, double-acting, telescopic
    Describe procedures for connecting hydraulic cylinders using fittings such as quick-connect, threaded, flange
    Connect cylinders in series or parallel
    Assess alignment, connection security, and leak-free operation
    Perform test to verify correct connection and operation of the hydraulic cylinders after connection
    Compare advantages and/or disadvantages of both

  8. Investigate hydraulic system diagnostic codes
    Assessment Strategies
    Skill demonstration in shop, Written Product
    Criteria
    Place machine in diagnostic mode
    Recall stored codes
    Compare diagnostic codes to trouble shooting guides
    Identify problem components

  9. Examine hydrostatic powertrain components, diagnostics, and testing
    Assessment Strategies
    Test, Scenario
    Criteria
    Explain the closed loop of the hydrostatic system
    Describe the components and their purpose
    Compare advantages and/or disadvantages of hydrostatic systems
    Testing procedure demonstrations meets instructor guidelines