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Demonstrate safe work habits while in a shop environment
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
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Explain electronically transmission theory of operation
Assessment Strategies
Test
Criteria
Explain how forward and reverse is achieved
Explain what parts are used for speed changes
Identify input(s) of the transmission
Identify output(s) of the transmission
Explain the operation of a final drive
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Identify electronically controlled transmission types
Assessment Strategies
Presentation
Criteria
Determine if the transmission is a gear type
Determine if the transmission is of partial powershift
Determine if transmission is of full powershift
Explore how to identify a hydrostatic transmission
Identify a continuously/infinitely variable transmission
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Identify electronically controlled transmission parts and components
Assessment Strategies
Test, Scenario
Criteria
Identify parts of a wet disk clutch pack
Describe how oil flows to pressurize a clutch pack
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Remove and replace tractor transmissions
Assessment Strategies
Skill demonstration in lab
Criteria
Use lab tools and jacks
Use tractor technical manual
Install disassembly equipment per instructions
Disconnect hydraulic lines, electrical wires, and mechanical linkages per specifications
Remove bolts holding housings together
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Remove, inspect, recondition and replace tractor wet disk clutch components
Assessment Strategies
Test, Scenario
Criteria
Determine reusability of parts in a wet disk clutch pack
Use technical information to find specifications
Measure using precision tooling to determine if a component is in or out of spec
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Remove, inspect, and rebuild electronically controlled partial powershift/full powershift transmissions
Assessment Strategies
Written exam for transmissions
Criteria
Use instructions found in the technical information
Disassemble and reassemble lab or live electronically controlled partial/full power shift transmission
Summarize the operation and power flow of the partial/full electronically controlled powershift transmission
Remove transmission gears, bearings, clutches, brakes, hydraulic and electrical/electronic controls
Replace transmission gears, bearings, clutches, brakes, hydraulic and electrical/electronic controls
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Remove, inspect and rebuild electronically controlled continuously/infinitely variable transmission (CVT, IVT, Vario)
Assessment Strategies
Written exam for transmissions
Criteria
Use instructions found in the technical information
Disassemble and reassemble lab/live electronically controlled continuously/infinitely variable transmission per instructions
Summarize the operation and power flow of the electronically controlled continuously/infinitely variable transmission test
Remove transmission gears, bearings, clutches, brakes, hydraulic, hydrostatic and electrical/electronic controls
Replace transmission gears, bearings, clutches, brakes, hydraulic, hydrostatic and electrical/electronic controls
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Remove, inspect, and reassemble tractor final drives
Assessment Strategies
Skill demonstration in lab
Criteria
Disassemble and reassemble final drive
Set up differential gears and bearings according to specifications
Disassemble final drive components
Reassemble final drive components
Explore the workings and components of a driveshaft
Determine different types of universal joints
Remove and install a universal joint cross and bearing assembly
Explain the difference between single reduction and double reduction final drive
Performance meets instructions and specifications found in technical information
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Perform electronically controlled partial powershift, full powershift transmission and CVT/IVT hydraulic, electronics and electrical tests
Assessment Strategies
Skill demonstration in lab
Criteria
Install pressure gauges and perform transmission pressure tests
Compare pressure test results to technical manual diagnostic flowchart
Perform electronic system tests and investigate any codes
Perform electrical system tests and compares voltages to specifications