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Demonstrate safe work habits when working on equipment and vehicle electrical systems.
Assessment Strategies
by completing a written objective examination.
by performing in a simulated work environment.
Criteria
Examination includes answers to questions describing the importance of safety when working on equipment and vehicle electrical systems.
you assume responsibility when working on equipment and vehicle electrical systems
you comply with all personal and environmental safety practices associated with eye protection
you come to class prepared every day with appropriate eye protection
you comply with all personal safety practices associated with foot protection
you come to class prepared every day with appropriate foot protection
you comply with all personal safety practices associated with required clothing
you come to class prepared every day with appropriate clothing
you comply with all personal and environmental safety practices associated with hand tools
you comply with all personal and environmental safety practices associated with power equipment
you comply with all personal and environmental safety practices associated with proper ventilation
you comply with all personal and environmental safety practices associated with the handling of chemicals/materials in accordance with federal, state, and local regulations
you comply with all personal and environmental safety practices associated with the storage of chemicals/materials in accordance with federal, state, and local regulations
you comply with all personal and environmental safety practices associated with the disposal of chemicals/materials in accordance with federal, state, and local regulations
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Explain fundamental electrical/electronic system principles.
Assessment Strategies
by submitting a mind map explaining fundamental electrical/electronic principles.
by completing a written objective examination.
Criteria
Mind map includes a brief description of the basics of electron flow
Mind map includes a description of the direction of current flow(conventional theory and electron theory)
Mind map includes a definition of a conductor, insulator, and semiconductor
Mind map includes a definition of electricity
Mind map includes a definition of voltage, the selected function to measure voltage on a multimeter, and how the meter is connected to a circuit
Mind map includes a definition of current, the selected function to measure current on a multimeter, and how the meter is connected to a circuit
Mind map includes a definition of resistance the selected function to measure current on a multimeter, and how the meter is connected to a circuit
Mind map includes a definition of voltage drop and its effect on a circuit
Mind map includes a definition and mathematical expression of Ohm's Law
Mind map includes a definition and mathematical expression of Watt's Law
Mind map includes only relevant and necessary details without being sketchy
Mind map evidences correct grammar, punctuation, and spelling
Mind map is typed
Mind map is neat, attractive, and organized into proper principles
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Demonstrate proficient use of a multiimeter (DVOM, DMM) to measure voltage, amperage, and resistance.
Assessment Strategies
by replacing the multi-meter battery
by testing and if needed replacing the multimeter fuses
by submitting a worksheet on metric conversion for electrical quantities
by Performing Voltage and Resistance Measurements on a Truck Chassis Electrical Circuit worksheets
by performing Preliminary Electrical System Checks worksheets
Criteria
you recognize safety precautions to be observed while using the multmeter
you recognize when multimeter battery has failed
you test multi-meter fuses
you replace multimeter fuses if needed
you assume responsibility in the use of the multmeter
you conform to proper multimeter etiquette
you explain the different functions of a multimeter
you explain the proper usage of a multimeter for measuring voltage, current, and resistance
you identify metric prefixes and abbreviations for measuring voltage, current, and resistance
Worksheet includes answers for converting to actual values and using a prefix
Worksheet includes description of equipment or vehicle being tested
Worksheet includes answers with proper abbreviated labels
you verify the correct operation of any components you had disconnected from the circuit
you measure available voltages with key off and engine off
you measure available voltages with key on and engine off and all accessories off
you utilize Min/Max feature of multi-meter to measure cranking voltage at the batteries
you compare voltage measurements at the alternator and dash gauge reading with engine running
you provide a recommendation of any repairs needed
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Investigate series, parallel, and series-parallel circuit laws and circuit faults.
Assessment Strategies
by submitting a mind map of the laws for series, parallel, and series-parallel circuits.
by submitting a mind map identifying and defining 3 circuit faults .
by completing the Predict Changes in Voltage, Current, and Resistance in a Circuit worksheet
Criteria
Mind map includes characteristics of a series circuit.
Mind map includes characteristics of a parallel circuit.
Mind map includes characteristics of a series-parallel circuit.
Mind map includes circuit fault name, definition, and at least two examples of each fault.
Mind map includes only relevant and necessary details
Mind map is concise without being sketchy
Mind map evidences correct grammar, punctuation, and spelling
Mind map is typed and organized into proper principles
Worksheet questions are all answered
Worksheet has 24 of the 30 questions answered correctly.
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Correlate electrical/electronic system principles and Ohm's Law to electrical circuits.
Assessment Strategies
by completing Ohm's Law worksheets
through the completion of Electrical/Electronic Modules workpacket using training boards
Criteria
Worksheet includes calculations for voltage, amperage, and resistance using Ohm's Law
Worksheet includes calculations for WATTS, H.P. and other simple electrical/electronic equations
Worksheet answers solve for the missing element in the circuit
Worksheet answers are properly labeled
Worksheet questions are all answered
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Determine electrical/electronic test equipment to be used.
Assessment Strategies
by selecting the correct piece of test equipment
through the completion of Electrical/Electronic Modules work packet using training boards
by completing the circuit tests and the correct evaluation of the condition of the electrical/electronic system has been determined
Criteria
you follow all personal and environmental safety practices.
you select the appropriate tools and equipment.
you demonstrate the ability to check an electrical/electronic system for opens
you demonstrate the ability to check an electrical/electronic system for shorts
you demonstrate the ability to check an electrical/electronic system for high resistance (voltage drop)
you perform electrical/electronic system tests using ammeter in the correct situation.
you perform electrical/electronic system tests using a voltmeter in the correct situation.
you perform electrical/electronic system tests using a ohmmeter in the correct situation.
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Differentiate between the basic types of electrical/electronic systems and the components used in them.
Assessment Strategies
through the completion of worksheets identifying the different types of electrical/electronic systems on diagrams, schematics, and mobile equipment
through the completion of worksheets identifying components and parts on demonstration boards, equipment, and vehicles
through the completion of Electrical/Electronic Modules work packet using training boards
Criteria
Worksheet includes an identification of a series type circuit
Worksheet includes an identification of a parallel type circuit
Worksheet includes an identification of a series-parallel type circuit
Worksheet includes an identification of a power source
Worksheet includes an identification of circuit protection device
Worksheet includes an identification of a circuit control device
Worksheet includes an identification of a load control device
Worksheet includes an identification of a load component
Worksheet includes an identification of how the circuit is grounded
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Summarize the function and operation of electrical/electronic system components and parts.
Assessment Strategies
through written objective examination
through the completion of worksheets
Criteria
Examination includes a description of the function of electrical/electronic system components and parts
Examination includes a description of the operation of electrical/electronic system components and parts
Worksheet includes a description of the function and operation of an electrical/electronic component or part as it relates to a particular circuit
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Construct circuits using electrical/electronic system components and parts.
Assessment Strategies
through the completion of Electrical/Electronic Modules work packet using training boards
through the completion of wiring harness project worksheet
Criteria
you follow all personal and environmental safety procedures
you construct Modules 3-5, 7-10, and 12-16 circuits and circuits are operational
you use multimeter to measure voltage, current, and resistance for Modules 3-5, 7-10, and 12-16
you perform all critical steps in the right order
you verbalize an explanation of the process as you perform it
your explanation presents sound reasoning as you describe the decisions you make throughout the process
you submit a rough draft schematic including all components before making the harness
Schematic operates properly on paper
Schematic includes straight lines connecting components
Project wiring harness is cut to proper lengths
Project wiring harness is color coded per circuit
Project wiring harness has wires grouped together
Project wire harness has no circuit faults: opens, shorts, or high resistance
you submit a final copy schematic specific to your project
Schematic includes the correct symbols for each component
Schematic operates properly on paper
Schematic includes straight lines connecting components
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Interpret electrical/electronic system symbols, schematics, and diagrams.
Assessment Strategies
by completing electrical/electronic symbols worksheets
by completing Delco Remy starting system diagram
by tracing current flow through an electrical/electronic circuits on OEM schematics or diagrams
by completing Machine Electronics test
Criteria
Worksheet identifies the shown schematic symbol by name
Worksheet includes additional means of showing a particular symbol
you locate the component that is represented by the symbol on a piece of equipment and/or vehicle
Worksheet includes a brief description of the function and operation of the component as it relates to circuit operation
Worksheet includes identification of sub circuits within starting system
Worksheet includes sub circuits properly color coded
you verbally describe to the instructor, the proper operation of the circuit starting at the battery and ending at the starter motor
you interpret electrical/electronic symbols
you color code each specific circuit using different colors for different scenarios
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Maintain electrical/electronic system terminals, connectors, wire, and cable.
Assessment Strategies
through the completion of wiring harness worksheet
through the completion of battery cable replacement
through the completion of soldering repair worksheet
Criteria
you follow all personal and environmental safety procedures
Wire harness includes proper length wire
Wire harness includes the correct selection of terminals for the gage (size) of wire
Wire harness includes the correct gage (size) of wire
Wire harness includes the correct amount of insulation stripped from wire
Wire harness includes heat shrink where necessary
Wire harness includes proper crimping of terminals to wire
Wire harness withstands strength test
Wire harness includes the proper type of protective loom
Battery cable selection is the correct gage (size) for circuit requirements
Battery cable selection is the correct length
Battery cable has the proper amount of insulation removed
Battery cable terminals are orientated before they are crimped
Battery cable terminals are correct for the gage (size) of cable
Battery cable terminals are correct diameter for their connection points
Battery cable terminals are crimped using the correct crimping dies
Battery cable has solder applied to inside of both terminal ends
Battery cable includes adequate amount of heat shrink
Battery cable includes heat shrink that has not been overheated
Soldering repair includes the removal of the damaged section of wire
Soldering repair includes the placement of the correct size and length of heat shrink over the two ends of the wire
Soldering repair includes a small overlap of the two splice ends
Soldering repair includes a splice clip if needed
Soldering repair includes the correct amount of insulation removed from the wire
Soldering repair includes a uniform amount of solder applied to the joint
Soldering repair includes heat shrink over the splice joint
Soldering repair includes heat shrink that has not been overheated
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Perform required maintenance and service on equipment and vehicle heavy duty batteries.
Assessment Strategies
by performing battery maintenance
by testing batteries
by charging batteries
by returning equipment or vehicle to service
through the completion of Battery Inspection and Testing worksheets
Criteria
you demonstrate all safety precautions and rules associated with servicing a battery.
you record battery specifications.
you perform a visual inspection and describe the general appearance of the battery, cables, terminals, hold downs, and boxes.
you check the tightness of the cables at both ends and describe the condition.
you perform a battery leakage test.
you record meter readings and an explanation of what is indicated by the readings.
you perform a battery voltage test.
you record meter readings and summarize the condition of the battery based upon the visual inspection and test.
Worksheets are filled out in order and are complete
you describe the equipment or truck being worked on
you record battery specifications
you DIAGRAM BATTERY ARRANGEMENT AND SHOW DIAGRAM TO THE INSTRUCTOR BEFORE DISCONNECTING
you remove, clean, and replace batteries in a single and multiple battery system
you perform a battery state of charge test using a refractometer and determine the specific gravity of each cell
you compare cell readings to determine if a load test should be performed
you determine the correct load to be placed on battery
you perform battery capacity (load, high discharge) test and determine needed service
you perform a three-minute charge test if battery failed load test
you make recommendations on battery condition and reusability
you determine correct procedures for disposal of batteries and battery electrolyte
you clean, repair, and replace battery cables and connectors
you charge battery using slow and/or fast method on single battery, multiple batteries, series hookup, and/or parallel hookup
you clean, repair, and replace battery boxes, mounts, and hold downs
you jump start a vehicle using jumper cables and a booster pack or auxiliary power unit
you select the correct batteries and install them in equipment or vehicle
you connect battery(s) according to your battery arrangement diagram
you verify correct battery performance while in equipment or vehicle
Worksheets are filled out in order and are complete
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Troubleshoot single battery systems
Assessment Strategies
by completing a written objective examination
by performing a battery discharge test (load test) while isolated
by performing a battery discharge test (load test) while connected
Criteria
you perform a visual inspection of the battery prior to any testing
you maintain an awareness of your shop surrounding during the procedure
you position the load tester a safe distance from the battery
you verify the carbon pile load control knob is off prior to making a connection to the battery
you install battery terminal stud adaptors (if applicable)
you connect the positive lead to the positive terminal of the battery first
you connect the negative lead to the negative terminal of the battery last
you connect the current clamp to one of the load tester cables
you observe the battery O.C.V.
you determine the correct load to be applied to the battery
you “zero out” the amperage display
you apply a load to the battery (1/2 of CCA’s)
you apply the load for 15 seconds
you observe the lowest load test voltage at the end of 15 seconds while loaded
you compare the voltage reading to the corrected-for-temperature minimum voltage requirements
you monitor battery voltage (bounce-back) immediately after the load test
you remove the current clamp
you disconnect the negative lead to negative terminal of the battery first
you disconnect the positive lead to the positive terminal of the battery last
you roll up the current clamp, positive lead, and negative lead and hang on load tester
you followed all safety procedures during the process
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Troubleshoot series battery configurations
Assessment Strategies
by completing a written objective examination
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Troubleshoot parallel battery configurations
Assessment Strategies
by completing a written objective examination