Recent SemestersFall 2026, Spring 2026, Fall 2025, Spring 2025, Fall 2024Class Size24 studentsCredits3PrerequisiteIt is advised that students be able to engage in written composition at a college level and read college-level texts. Transfers ToCSUDescriptionThis is an introductory course designed to familiarize students with the basic construction and operation of heavy equipment powertrains. Topics include principles of gears, friction clutches, fluid couplers, anti-friction bearings, planetary gears, and differential gear sets. Students learn the proper use of precision measuring tools and how to safely perform basic powertrain tests and minor repairs. This course is designed to be a companion course to HET 121, HET 122, HET 123 and HET 125, and it is required for the Heavy Equipment Maintenance Technician Certificate. Students are encouraged to complete all five courses in order to obtain a firm foundation in heavy equipment technology.Usually HeldWed 6:00pm–8:25pm, Thu 6:00pm–8:25pm, Wed 8:00am–10:25am 