AVTEC

Diesel/Heavy Equipment Technologies



Diesel Heavy StudentsNormally, half of the investment of a mining, construction, highway transportation or logging business is in equipment. Good preventive maintenance is a priority and contributes to the success of the business.

The hands-on approach to AVTEC's Diesel/Heavy Equipment Technologies program helps students learn how to service, maintain, and repair equipment ranging from dump trucks to bulldozers. As most equipment is powered by diesel engines, students will disassemble, measure, and reassemble engines to factory specifications. The technology changes in the past few years have led to the use of laptop and dedicated scan tools for diagnosis of electronically controlled engines and systems. Because of the complexity of this equipment, students should have good mechanical aptitude, and strong reading and mathematics skills, and should also possess a desire to succeed.

Approximately 60% of the course is shop work and 40% is classroom instruction. Instruction is individualized so that students may progress at their own rate. Good reading and math skills are essential.

The nature of the training requires that students work outdoors. Warm clothing, rain gear, and proper safety boots are required. Construction equipment such as dump trucks, road graders, front-end loaders, back hoes, bulldozers, and a large transport truck are utilized by students developing mechanical skills.

Earn University of Alaska Credit While Attending AVTEC

Diesel/Heavy Equipment Technology graduates may earn up to 30 University of Alaska college credits towards the requirements of an Associate of Applied Science Diesel Technology Degree.

Program Content


To achieve a Diesel/Heavy Equipment Technologies certificate, students must complete the following requirements. For a detailed description of each requirement, click on the link below.

Course Hours
 Related Studies 76
 General Shop Operations 65
 Brakes 115
 Tire Repair 30
 Introduction to Commercial Transportation 30
 Chassis Components 115
 Electrical 60
 Transmissions 65
 Hydraulic Systems 90
 Engines 395
 Fuel Systems 45
 Engine Lubrication and Cooling Systems 30
 Intake and Exhaust Systems 20
 Undercarriage 50
  Governors 35
 Arc and Gas Welding 30
 Cab/Body Systems 45
 Education/Technical Knowledge 50

Occupational Levels

Occupational levels of Technician Level 3, Technician Level 2, or Technician Level 1 will be assigned upon successful completion of the training program based on the student’s proficiency of the program’s competencies.

Industry Certifications

In addition to the Diesel/Heavy Equipment Technologies certificate, students can also prepare to take the ASE certification tests.

For a very nominal fee, they can also earn up to 30 CTE credits from UAA through our TechPrep agreement.

Program Content


Related Studies

Participate in school safety orientation, complete achievement tests, obtain First Aid & CPR card, complete applied math class and computer skills practice, participate in resume writing and job search training, participate in interview and communications training.
Note: First Aid & CPR, job search and job interview training will be optional and offered in evenings or on weekends. To graduate at the top level these are required courses.

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General Shop Operations

Identify, use, and maintain basic shop tools, demonstrate the proper use of hand tools and basic power tools, define and apply mechanic terminology, identify common fasteners, read tap and thread chart and perform basic tapping and threading, identify and use precision measuring tools.

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Brakes

Describe the design and operation of air and hydraulic brake systems, describe air and hydraulic supply system and service, truck rear axle brake application system and service, trailer brake application and service, tractor steering axle brake application system and service; service hydraulic and air brakes on truck or loader.

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Tire Repair

State safety issues and demonstrate proficiency in the repair of tires, service and repair a large truck and loader tire. Service light truck, truck, and heavy equipment tires.

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Introduction to Commercial Transportation

Covers federal regulations, record keeping, shop management and the role of the mechanic, tools, fasteners and general shop operations. Introduction to trucks, buses and motor coaches.

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Chassis Components

Remove and replace vehicle clutch, repack and adjust wheel bearings, disassemble and reassemble 3- and 4-speed transmissions, disassemble, reassemble and adjust differential assembly, diagnose and repair chassis and suspension components including air suspension systems.

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Electrical

Service batteries, troubleshoot and repair vehicle wiring and lighting systems, service ignition systems, including tune-up, timing and repair, explain the basic theory of ignition system operations, service starters; including bench testing rebuilt units, explain theory of starting system operations and generator/regulator system operations, service alternators; including bench testing rebuilt units, explain theory of alternator system operation. Use scan tools and scopes to diagnose system operation and malfunction. Includes electronic fuel systems and advance driveability diagnosis.

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Transmissions

Describe the construction, operation, inspection and maintenance of the standard transmission, describe service procedures for standard transmissions, describe the construction, operation, inspection and maintenance of the automatic transmission, service a standard and an automatic transmission.

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Hydraulic Systems

Identify hydraulic components, understand basic pumps, explain hydraulic principles, demonstrate industrial applications and hydraulic systems.

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Engines

Identify different diesel engines, explain the basics of diesel engine functions, demonstrate basic repair practices, disassemble engines, clean and inspect all part, inspect and measure all parts for wear using manufacturers’ specifications, grind valves and seats, explain camshaft functions, measure, knurl or replace valve guides, replace engine bearings and measure clearance, install cylinder liners, fit pistons to connecting rods, correctly install piston rings, assemble engine and all associated parts, test run and adjust engine to specifications, troubleshoot various engine problems.

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Fuel Systems

Inspect fuel systems, identify fuel system components, understand fuel system flow, demonstrate fuel filter replacement, demonstrate fuel system bleeding procedure, troubleshoot fuel system problems, install and time fuel injection pumps, remove and install fuel injectors, clean and adjust fuel injectors, clean and adjust fuel injectors, basic understanding of computer controlled injection pumps and fuel injectors.

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Engine Cooling and Lubrication

Explain Automated Precision, Inc. oil classification system, working knowledge of oil filters and filtration systems, working knowledge of oil pumps and oil supply, understand oil coolers. Correctly identify all parts of cooling system, understand functions of a water pump and pump development, understand workings of a thermostat, inspect and test heat exchangers, correct use of antifreeze.

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Intake and Exhaust Systems

Understand intake manifolds, air filters and air filtration system, inspect and service air intake systems. Identify exhaust system components, diagnose leaks and repair. Understand and service Tier 4 DPF Urea systems and filters. Understand the function of and service the turbo charger and EGR systems.

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Undercarriage

Remove and replace track on crawler tractor, disassemble and reassemble final drive on crawler tractor, remove, repair and install swing frames on a crawler tractor, replace cutting edges on blade, use torch, porta-power, and/or hydraulic press to straighten parts on equipment, jack up and install blocking or jack stands on heavy equipment.

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Governors

Identify, test, and properly maintain various governors.

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Arc and Gas Welding

Perform basic welding safety, solder, braze, oxy-acetylene cutting and welding techniques.

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Cab/Body Systems

Covers cab and body systems, HVAC service and diagnosis, refrigerant types and regulations.

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Education/Technical Knowledge

Write up and research parts lists, carry out instructions furnished in written, oral or diagrammatic form, read manuals and apply to work situation, apply mechanics math as required.

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Mission

To teach students the skills, attitudes, and professional work ethic to become successful in servicing, maintaining and repairing heavy trucks, construction machinery and diesel engines.

Length of Course

1,346 clock hours, 204 training days

Enrollment

August and January

Training Hours

8:30 a.m. to 3:30 p.m., Monday through Friday

Prerequisites

Good math and reading skills are important.

TABE tests scores for this program must be:
 Reading - 555
 Combined Math - 552

For specific information on entry guidelines in reading and mathematics for this program, contact the Admissions Office at (800) 478-5389.

Construction equipment such as dump trucks, road graders, front-end loaders, back hoes, bulldozers, and a large transport truck are utilized by students developing mechanical skills.

Physical requirements of the occupation are the ability to lift 100 lbs., carry 50 lbs., stoop, kneel, crawl, walk, and stand continuously. The work also requires good finger dexterity.

Students will need to provide their own tools, safety equipment and work clothing.

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