DIM: Diesel Mechanics
DIM 0810. TRANSIT EQUIPMENT PREVENTIVE MAINTENANCE TECHNICIAN.
The purpose of this course is to develop the competencies essential to the public transit bus technology industry. This is the introductory course into transit maintenance which includes identifying shop organization, management, and safety requirements, demonstrating infection control procedures, demonstrating MSDS, AED, and CPR procedures and practicing general shop safety. Students will also demonstrate the use of hardware and fasteners, basic tools and equipment, perform transit bus and forklift preventive maintenance, perform tire service, identification and repair, and demonstrate workplace communication skills and qualifications for employment.
DIM 0811. TRANSIT BASIC ELECTRICAL SYSTEMS TECHNICIAN.
This is the introductory electrical systems course that explains the theory and nature of electricity, basic electrical terminology and symbols, solving problems using Ohm’s and Kirchoff’s law, and understanding and analyzing electrical circuits and components.
DIM 0812. TRANSIT WHEELCHAIR LIFT/RAMP TECHNICIAN.
Students will learn how to troubleshoot and repair wheelchair lifts, pumps, hoses, and components; wheelchair ramps and associated hardware; bus kneeler systems and components; and related hydraulic and electrical systems.
DIM 0813. TRANSIT DIESEL ENGINE PREVENTIVE MAINTENANCE TECHNICIAN.
Students will identify types of bearings, seals, gaskets, and fasteners and their uses; identify power train components and functions; identify threaded fasteners by size, type, thread series, thread classes, material hardness, and compatibility; and demonstrate the ability to remove correctly an oil sample for analysis.
DIM 0814. TRANSIT STEERING AND SUSPENSION TECHNICIAN.
Students will troubleshoot and repair conventional steering systems, front and rear-axle suspensions, and hydraulic steering systems. Students will also service tires and wheels, bearings, hubs and seals, align bus frames and adjust bus height.
DIM 0820. TRANSIT HYDRAULICS TECHNICIAN.
This course details the basic principles of hydraulics, identifies and explains the operating components of hydraulic systems, and enables students to locate and identify hydraulic units by their symbols on a diagram. Maintenance and reconditioning of lines and reservoirs, pumps and motors, control valves and cylinders is also included.
DIM 0821. TRANSIT DIESEL ELECTRICAL AND DIESEL ELECTRONICS TECHNICIAN.
This is a mid-level course that examines, explains, and troubleshoots the charging and starting systems, examines regulators, rectifiers, AC and DC motors, batteries, instruments and gages. Student will also Identify, diagnose, remove and replace electronic sensors and analyze electrical circuits related to the engine.
DIM 0822. TRANSIT DRIVE TRAIN TECHNICIAN.
This course explains power train operating principles and identifies components; troubleshooting shift patterns; clutch servicing; driveline and power take-off servicing; and service and repair of differentials.
DIM 0823. TRANSIT INTERMEDIATE ELECTRICAL SYSTEMS TECHNICIAN.
This mid-level electrical course explains the principles of operation and purposes of transistors, relays, and switches found on transit equipment. Common electrical components are tested and troubleshot. Equalizer and diode tests are explained. The ATEC circuit simulator is introduced and circuits are built. Complex schematics and charts are introduced.
DIM 0824. TRANSIT BRAKES/AIR SYSTEM TECHNICIAN.
This course is a comprehensive examination of air brake systems and their supporting components. Principals of operation, servicing, troubleshooting and repairing of the following systems/components is included: air, brake, parking, ABS, Wedge, S-Cam, air compressors, hydraulic booster, shoes, pads, kits, valves and lines. The brake board is utilized.
DIM 0830. TRANSIT ALTERNATIVE FUELS SYSTEM TECHNICIAN.
This advanced course explores current alternative fuels technology with detailed description and troubleshooting of the EP40 parallel hybrid system. Components include: ESS energy storage system, DPIM Dual power inverter module, and TCM/VCM. Torque blending theory, fuel cells, ULSD, PC-10 and CJ-4 oils, and alternative fuels are also presented.
DIM 0831. TRANSIT ADVANCED ELECTRICAL SYSTEMS TECHNICIAN.
This advanced electrical course builds on the ATEC circuit simulation modules, examines programmable logic controllers (PLC), Multiplex systems and their components, Ladder logic charts, various electrical instruments, and various types of sensors. Student will learn how to identify and troubleshoot multiplex electrical system and read and understand complex electrical schematics and charts.
DIM 0832. TRANSIT HEATING AND AIR-CONDITIONING.
This advanced course is a detailed, comprehensive examination of the modern HVAC system utilized on a transit bus. All areas and components are covered, including EPA requirements, refrigeration, recovery and reclaim, inspection, and troubleshooting. 608 certification testing is included.
DIM 0833. TRANSMISSION DIAGNOSIS, REBUILD AND REPAIR.
In this advanced course the student will: Identify the basic transmission components and functions, identify principles of operation, assemblies, and systems of transmission operation, troubleshoot and repair transmission systems, rebuild transmission assemblies, and rebuild/troubleshoot retarder assembly.
DIM 0834. DIESEL ENGINE DIAGNOSIS, REBUILD AND REPAIR TECHNICIAN.
In this advanced course the student will: identify principles, assemblies, and systems of engine operation, apply math skills and scientific principals common to diesel technology, troubleshoot and repair engine systems, rebuild a cylinder-head
assembly, remove and replace camshaft assemblies, and rebuild a block assembly.