| DHET-149 Truck Maintenance and Compliance |
| (3 units LEC/LAB) | |
| A study of truck and equipment maintenance, repair, and modification. Students will learn how to fill out maintenance records to industry standards. |
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| DHET-150 Power Assisted Brakes |
| (3 units LEC/LAB) | |
| Theory, operation, and maintenance of vacuum, air, and combination braking systems. Electronic controlled and anti-lock brakes will be discussed. |
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| DHET-153 Truck and Equipment Maintenance |
| (4 units LEC/LAB) | |
| Covers truck and equipment repair and modification. Students will carry out major repair projects involving drive systems, suspension systems, frames and load carrying systems. Emphasis on truck and equipment modifications to fit the vehicle’s job requirements. |
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| DHET-166 Theory and Operation of Agricultural Equipment |
| (3 units LEC/LAB) | |
| A study of traditional farming equipment from basic to high-tech agriculture equipment. Discussion, practices, and presentation on appropriateness and economics. |
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| DHET-167 Hydraulics and Pneumatics |
| (3 units LEC/LAB) | |
| Theory and application of fluid and air as used in industry. Topics and procedures covered are the maintenance, repair, and troubleshooting of pumps, motors, valves, and cylinders. Students will gain a working knowledge of formulas used in hydraulics and leverage factors. |
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| DHET-168 Introduction to the Transportation Industry |
| (2 units LEC) | |
| This course is an introduction to the transportation industry, involving an overview of jobs including mechanics, sales, parts, and management. Topics include metric conversions, service and parts manuals, microfiche, laws and ordinances, records, ethics, work habits and resume writing. |
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| DHET-180 New Generation Diesel Engines |
| (1.5 units LEC/LAB) | |
| A course focusing on engine models and changes in operation, tune-up and theory. The Cat, Cummins, and Detroit engines will be studied. Time will be spent analyzing engine brakes and their modifications to fit new style engines. Lectures by industry representatives will bring field experience to the class. |
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| DHET-54 Diesel Engine Theory |
| CSU | (4 units LEC/LAB) | |
| Study of two-stroke and four-stroke diesel engine theory, including design, engine overhaul, rebuild processes, and procedures and support component repair. Major manufacturer’s engines will be covered. |
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| DHET-59 Diesel Fuel Systems |
| CSU | (3 units LEC/LAB) | |
| A course focusing on theoretical and hands-on study of fuel systems used on modern diesel engines with emphasis on the systems used on compression ignition engines. Types covered are common rail, distributor, multiple plunger, and electronic. The economics of system selection, reliability, design performance, power efficiency, and emissions reduction will be discussed. |
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| DHET-63 Gear Theory and Transmissions |
| CSU | (3 units LEC/LAB) | |
| Lecture and hands-on experience with gear design and theory of operation used in mechanical and powershift transmissions. Also, the course will cover lubrication and powerflow of transmissions produced by Eaton/Fuller, Spicer, Caterpillar and Allison. |
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| DHET-64 Gear Theory and Rear Differentials |
| CSU | (3 units LEC/LAB) | |
| A study of gear design, lubrication and power flow of differentials produced by major truck and equipment manufacturers. |
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| DHET-66 Diesel Engine Performance and Analysis |
| CSU | (4 units LEC/LAB) | |
| Familiarizes students with engine models, changes in operation, tune-up, and theory and the use of the dynometer, hand-held instruments and gauges for engine analysis and performance. |
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| DHET-69 Heavy Equipment Machine Practices |
| CSU | (2.5- units LEC/LAB) | |
| An introduction to specialized practices used in machine shops for reconditioning blocks, cylinder heads, rods and crankshafts related to the heavy equipment industry. |
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