DIET 105 Electrical Systems

Troubleshooting and repair procedures for heavy-duty electrical systems, including electrical principles as they relate to the components used in trucks and heavy equipment, writing schematics, and lighting along with the associated testing and repair procedures for each system. Topics include basic electricity fundamentals, starting, and charging systems, batteries, troubleshooting, and lighting systems.

Credits

3.00 Credits

DIET 105Electrical Systems

Please note: This is not a course syllabus. A course syllabus is unique to a particular section of a course by instructor. This curriculum guide provides general information about a course.

I. General Information

Department

II. Course Specification

Credit Hours Narrative

3.00 Credits

III. Catalog Course Description

IV. Student Learning Outcomes

Upon completion of this course, a student will be able to:

Identify battery type; preform appropriate battery load test; determine needed action
Determine battery state of charge using an open circuit voltage test
Inspect clean, and service battery; replace as needed
Inspect and clean battery boxes, mounts, and hold downs; repair or replace as needed
Charge battery using appropriate method for battery type
Inspect, test, and clean battery cables and connectors; repair or replaces as needed
Jump start a vehicle using jumper cables and a booster battery or appropriate auxiliary power supply using proper safety procedures
Identify series and parallel systems. Perform battery capacitance test; determine needed action
Perform starter circuit cranking voltage and voltage drop tests; determine needed action
Inspect and test components (key switch, push button and/or magnetic switch) and wires and harnesses in the starter control circuit; replace as needed
Inspect and test starter relays and solenoids/switches; replace as needed
Remove and replace starter; inspect flywheel ring gear or flex plate
Perform starter current draw test; determine needed action
Test instrument panel mounted volt meters and/or indicator lamps; determine needed action
Identify causes of a no charge, low charge, or overcharge problems; determine needed action
Inspect and replace alternator drive belts, pulleys, fans, tensioners, and mounting brackets; adjust drive belts and check alignment
Perform charging system voltage and amperage output tests; perform AC ripple test; determine needed action
Perform charging circuit voltage drop tests; determine needed action
Remove and replace alternator
Inspect, repair, or replace cables, wires, and connectors in the charging circuit
Identify causes of brighter than normal, intermittent, dim, or no headlight
Test, replace, and aim headlights
Test headlight and dimmer circuit switches, relays, wires, terminals, connectors, sockets, and control components/modules; repair or replace as needed.
Inspect and test switches, bulbs/LEDs, sockets, connectors, terminals, relays, wires, and control components/modules of parking, clearance and taillight circuits; repair or replace as needed
Inspect and test tractor-to-trailer multi-wire connector(s); repair or replace as needed
Inspect, test, and adjust stoplight circuit switches, bulbs/LEDs, sockets, connectors, terminals, wires and control components/modules; repair or replace as needed
Inspect and test turn signal and hazard circuit flasher(s), switches, relays, bulbs/LEDs, sockets, connectors, terminals, wires and control components/modules; repair or replace as needed
Inspect and test reverse lights and warning device circuit switches, bulbs/LEDs, sockets, horns, buzzers, connectors, terminals, wires and control components/modules; repair and replace as needed

DIET 105 Electrical Systems

Credits