DHM - Diesel Mechanics

DHM 101  Introduction to Diesel Engines  (3-3-4)  

Offered Spring Semester

This course is an introduction to diesel engine design and operation principles.

DHM 105  Diesel Engines I  (2-3-3)  

Offered Spring Semester

Prerequisites: DHM 101, DHM 125

This course covers the basic study of diesel engine design and operating principles.

DHM 107  Diesel Equipment, Service & Diagnosis  (2-3-3)  

Offered Fall Semester

This course is a study of heavy vehicle systems with emphasis on preventive maintenance, problem diagnosis and repair procedures.

DHM 108  Diesel Engine Tune-Up  (1-3-2)  

Offered Spring Semester

Prerequisite: DHM 101

This course is a study of diesel engine tune-up principles and practices. Students will explore ways to minimize overall operational costs, as well as the use of aftermarket add-on equipment such as performance electronic computer chips, high output turbochargers and custom exhaust installation.

DHM 121  Introduction to Diagnostic Testing  (1-3-2)  

Offered Fall and Spring Semesters

Prerequisite: DHM 173

This course is an introduction to basic theory and practical application of diagnostic testing equipment in troubleshooting procedures. Content includes the study of diagnostic software and generic diagnostic readers for all major engine manufacturers. Students will utilize diagnostic testing equipment in a simulated environment to determine the appropriate repairs for a unit.

DHM 125  Diesel Fuel Systems  (2-3-3)  

Offered Spring Semester

This course is a basic study of diesel engine fuel systems including pumps, governors and injectors.

DHM 151  Drive Trains  (3-3-4)  

Offered Summer Semester

This course is a study of the theory and repair of drive train systems.

DHM 155  Power Trains  (2-3-3)  

Offered Spring Semester

This course covers the theory and repair of transmission drive shafts and differentials.

DHM 171  Introduction to Heavy Equipment Welding  (1-6-3)  

Offered Summer Semester

This course introduces the proper welding techniques utilized to alter a sub-frame, alter a unit, or add additional equipment to improve payload space, safety, or location.

DHM 173  Electrical Systems I  (2-3-3)  

Offered Fall Semester

This course is a study of basic electrical theory as applied to truck and heavy equipment batteries, starters and alternators.

DHM 205  Diesel Engines II  (2-3-3)  

Offered Spring Semester

Prerequisite: DHM 105

This course covers the practical application of diesel engine repair, including engine disassembly, unit repair, reassembly and testing.

DHM 216  Medium Diesel Engines  (2-3-3)  

Offered Fall Semester

Prerequisites: DHM 101, DHM 125

This course is the study of major manufacturers’ configuration of medium diesel engines, diagnostic adjustment and settings, specific exhaust turbo performance settings and reassembly techniques.

DHM 225  Electronic Fuel Systems  (2-3-3)  

Offered Summer Semester

Prerequisite: DHM 125

This course covers the theory and practical application of electronic fuel power systems.

DHM 231  Diesel Air Conditioning  (1-3-2)  

Offered Summer Semester

This course is a study of diesel air conditioning theory, maintenance, troubleshooting and repair procedures.

DHM 232  Heating, Cooling, & Air Conditioning Systems  (2-3-3)  

Offered Summer Semester

This course is an introduction to engine heating and cooling systems used in modern trucks. Various truck and heavy equipment air conditioning systems will also be explored.

DHM 251  Suspension and Steering  (1-6-3)  

Offered Summer Semester

This course is a study of steering systems, suspension systems and basic front-end alignment techniques.

DHM 255  Air Brake Systems  (2-3-3)  

Offered Spring Semester

This course is a study of air compressors, valves, electrical controls and brake designs as applicable to modern trucks.

DHM 258  Chassis and Frame Alignment  (3-3-4)  

Offered Spring Semester

Prerequisites: DHM 151, DHM 171

Co-requisites: DHM 121, DHM 255

This course is a study of the principles of fabricating, heat treating, straightening and aligning of chassis systems.

DHM 260  Fluid Power Systems  (1-3-2)  

Offered Spring Semester

This course introduces the principles of fluid power systems for diesel trucks and heavy equipment units. Topics include installation, routing and set up of payload mounted equipment to the vehicle.

DHM 262  ABS and TCS Brake Systems  (1-3-2)  

Offered Spring Semester

Prerequisites: DHM 121, DHM 255

This course is a study of the theory and practical application of ABS (Automatic Braking Systems) and TCS (Traction Control Systems) for truck safety systems.

DHM 265  Hydraulic Systems  (2-3-3)  

Offered Summer Semester

This course is a study of the theory, application, testing and repair of diesel and heavy equipment hydraulic systems.

DHM 271  Auxiliary Power Units  (1-3-2)  

Offered Summer Semester

This course is a study of auxiliary power units, including application, placement, installation and diagnostics.

DHM 272  Trailer Technology  (3-3-4)  

Offered Summer Semester

Prerequisites: DHM 121, DHM 255, DHM 262

This course is a study of the theory and practical application of service, repair and maintenance of common road trailer units.

DHM 273  Electrical Systems II  (2-3-3)  

Offered Fall Semester

Prerequisite: DHM 173

This course covers advanced electrical/electronic controls for diesel trucks and heavy equipment. Troubleshooting and repair techniques are included.