Portland Community College | Portland, Oregon

Course Number:
DST 115
Course Title:
Air Conditioning
Credit Hours:
Lecture Hours:
Lecture/Lab Hours:
Lab Hours:
Special Fee:

Course Description

This course is designed to prepare the servicemen to understand the principles of air conditioning, to identify air conditioning components, to state the component functions, and to service Caterpillar air conditioning systems. This course prepares the student to confidently work on mobile air conditioning systems in an industrial environment. DST 114. Prerequisites: Provide a dealer letter indicating secured internship at a participating Caterpillar Dealership. Audit available.

Intended Outcomes for the course

At the completion of this course, the student will be able to:

§         Demonstrate an understanding of basic power train components and theory of operation.

§         Identify the components and explain the operation of flywheel clutches.

§         Identify the components and explain the operation of torque converters and torque dividers.

§         Identify the components and explain the operation of manual transmissions.

§         Identify the components and explain the operation of power shift transmissions and transmission control systems.

§         Disassemble and assemble a torque converter, torque divider, manual transmission, and power shift transmission.

Course Activities and Design

This is an outcome-based course utilizing a lecture / lab format. This course includes videos, assignments, demonstrations, lectures, and hands on learning.

Outcome Assessment Strategies


·            Multiple choice, true/false, fill in the blank, short answer and essay testing

·            Hands-on practical testing

·            Daily lab assignments as defined by Caterpillar Curriculum / weekly and term projects

·            Attendance

·            Work ethics

Course Content (Themes, Concepts, Issues and Skills)

Introduction to Power Train.


§         Learn Power Train Main Components and Theory of Operation.

§         Learn Power Transfer Methods.

§         Learn Gears and Gear Sets.


§         Learn about Flywheel Clutches.

§         Learn about Torque Converters and Torque Dividers.


§         Learn Manual Shift Transmissions.

§         Learn Power Shift Transmissions.

§         Learn Power Shift Transmission Control Systems.



§         Learn and practice personal safety.

§         Learn and practice facility safety.

§         Learn and practice equipment safety.