Delaware Technical Community College

Campus Location

Georgetown

Prerequisites

Prerequisites: (Test Scores or ENG 102) and AUT 102 and AUT 103 and AUT 104

Course Credits and Hours

4 credit(s)

2 lecture hours/week

6 lab hours/week

Course Description

This course prepares the student to perform preventative maintenance inspections on medium/heavy duty trucks in the areas of heating, ventilation, air-conditioning, cab, and hydraulics. Laboratory exercises include inspection and maintenance on medium/heavy duty truck and related accessory systems that meet or exceed DOT standards.

Additional Materials

Safety glasses

Required Text(s)

Obtain current textbook information by viewing the campus bookstore - https://www.dtcc.edu/bookstores online or visit a campus bookstore. Check your course schedule for the course number and section.

Disclaimer

None

Core Course Performance Objectives (CCPOs)

Describe various heating, ventilation, and air conditioning systems as it relates to medium/heavy duty trucks, and perform service procedures as assigned. (CCC 1, 2, 3, 4, 5, 6; PGC 1, 2, 4, 5)
Analyze HVAC instruments and controls, operation and service procedures as assigned. (CCC 1, 2, 3, 4, 5, 6; PGC 1, 2, 3, 4, 5)
Analyze and service safety equipment as it relates to medium/heavy duty trucks and trailers. (CCC 1, 2, 3, 4, 5, 6; PGC 1, 2, 3, 4, 5)
Explain various hardware as it relates to medium/heavy duty trucks and trailers and perform service procedures as assigned. (CCC 1, 2, 3, 4, 5, 6; PGC 1, 2, 3, 4, 5)
Identify various hydraulic systems as it pertains to medium/heavy duty trucks, and explain in its operation and service. (CCC 1, 2, 3, 4, 5, 6; PGC 1, 2, 3, 4, 5)

See Core Curriculum Competencies and Program Graduate Competencies at the end of the syllabus. CCPOs are linked to every competency they develop.

Measurable Performance Objectives (MPOs)

Upon completion of this course, the student will:

Describe various heating, ventilation, and air conditioning systems as it relates to medium/heavy duty trucks, and perform service procedures as assigned.
1. Utilize vehicle service information, including refrigerant/oil type, vehicle service history, service precautions, and technical service bulletins.
2. Identify various refrigeration systems, components, operation and service.
3. Troubleshoot the A/C system, HVAC electronic components, and related systems using the proper equipment to determine needed action.
4. Check refrigerant type and test for contamination, perform connection of proper gauge set/test equipment, and record temperature and pressure readings to determine necessary action.
5. Demonstrate understanding of A/C system performance, leak test, electrical components and controls.
6. Demonstrate the correct use and maintenance of refrigerant handling equipment.
7. Identify various heating, ventilation, engine cooling systems, operation and service.
8. Perform diagnosis of heating system components to determine necessary action.
Analyze HVAC instruments and controls, operation and service procedures as assigned.
1. Explain the operation of instruments and controls, and perform diagnostics as assigned.
2. Diagnose mechanical key condition; check operation of ignition switch; check operation of indicator lights, warning lights and/or alarms; check instruments; record oil pressure and system voltage; check operation of electronic power take-off (PTO) and engine idle speed controls (if applicable).
3. Verify operation of all accessories, and repair as needed.
4. Demonstrate the operation of the auxiliary power unit (APU)/electric power unit (EPU), and perform proper repair procedures as needed.
Analyze and service safety equipment as it relates to medium/heavy duty trucks and trailers.
1. Check the operation of horns (electric and air), and repair as needed.
2. Test warning device operation (reverse, air pressure, etc.), and determine necessary action.
3. Determine condition of spare fuses, safety triangles, fire extinguisher, and all required decals.
4. Test seat belts and sleeper restraints, and follow proper repair procedures as assigned.
5. Inspect condition of wiper components, and determine needed action.
Explain various hardware as it relates to medium/heavy duty trucks and trailers, and perform service procedures as assigned.
1. Check the operation of wipers and washer; inspect windshield glass for cracks or discoloration; check sun visor; check seat condition, operation, and mounting; check door glass and window operation; verify operation of door and cab locks; inspect steps and grab handles; inspect mirrors, mountings, brackets, and glass; and determine needed action.
2. Perform lubrication procedures for all cab grease fittings; and inspect and lubricate door and hood hinges, latches, strikers, lock cylinders, safety latches, linkages, and cables.
3. Check cab mountings, hinges, latches, linkages, and ride height quarter fender, mud flaps, and brackets; and determine needed action.
4. Check, service, and/or adjust fifth wheel, pivot pins, bushings, locking mechanisms, mounting hardware, air lines, and fittings, sliding fifth wheel, tracks, stops, locking systems, air cylinders, springs, lines, hoses, and controls.
Identify various hydraulic systems as it pertains to medium/heavy duty trucks, and explain in its operation and service.
1. Use vehicle service information, including vehicle service history, service precautions, fluid type, and technical service bulletins.
2. Check placement of equipment/component safety labels and placards; and determine needed action.
3. Identify hydraulic system components, locate filtration system components, and service filters and breathers.
4. Check fluid level and condition; take a hydraulic fluid sample for analysis, hoses and connections for leaks, proper routing, and proper protection; and determine needed action.

Evaluation Criteria/Policies

The grade will be determined using the Delaware Tech grading system:

90-100	=	A
80-89	=	B
70-79	=	C
0-69	=	F

Students should refer to the Catalog/Student Handbook for information on the Academic Standing Policy, the Academic Integrity Policy, Student Rights and Responsibilities, and other policies relevant to their academic progress.

Final Course Grade

Calculated using the following weighted average

Evaluation Measure	Percentage of final grade
Summative -(4-6) Tests (equally weighted)	20 %
Summative-(7-10) Quizzes (equally weighted)	20 %
Summative/Formative- Minimum 10 Repair Orders/Worksheets (equally weighted)	30%
Summative Assessments - Minimum 2 Practical Assessments (equally weighted)	30%
TOTAL	100%

Program Graduate Competencies (PGCs are the competencies every graduate will develop specific to his or her major)

Use appropriate diesel diagnostic and service equipment, hand tools, and precision measuring devices to determine and perform the proper repair as necessary.
Interpret diesel electronic service information, service manuals, and diagnostic charts.
Document service repair procedures that accurately reference the 3Cs:
1. Customer complaint verification
2. Correct the problem
3. Complete the repair
Employ proper diesel industry service facility safety practices.
Practice professional conduct as required in the diesel industry.

Core Curriculum Competencies (CCCs are the competencies every graduate will develop)

Apply clear and effective communication skills.
Use critical thinking to solve problems.
Collaborate to achieve a common goal.
Demonstrate professional and ethical conduct.
Use information literacy for effective vocational and/or academic research.
Apply quantitative reasoning and/or scientific inquiry to solve practical problems.

Students in Need of Accommodations Due to a Disability

We value all individuals and provide an inclusive environment that fosters equity and student success. The College is committed to providing reasonable accommodations for students with disabilities. Students are encouraged to schedule an appointment with the campus Disabilities Support Counselor to request an accommodation needed due to a disability. The College's policy on accommodations for persons with disabilities can be found in the College's Guide to Requesting Academic Accommodations and/or Auxiliary Aids Students may also access the Guide and contact information for Disabilities Support Counselors through the Student Resources web page under Disabilities Support Services, or visit the campus Advising Center.

Minimum Technology Requirements

Minimum technology requirements for all distance education type courses.

DSL 202 Preventive Maintenance II

Credits

Prerequisite

Course Number and Title: