Revised 01/2010
DSL 155 - Heavy Duty Suspension and Service (3 CR.)
Course Description
Examines suspensions used on heavy-duty trucks and teaches preventative maintenance and service procedures. Includes nomenclature, theory of operation and services, and repair of heavy-duty truck suspension systems including tires and wheels and steering gear and connecting linkage. Provides opportunity for preventative maintenance inspections and service procedures on heavy-duty vehicles. Lecture 2 hours. Laboratory 2 hours. Total 4 hours per week.
General Course Purpose
This course is designed to provide the student with a comprehensive knowledge of medium/heavy-duty truck steering systems, front and rear suspension, front and rear axle alignment, and various types of truck chassis. Emphasis is placed upon suspension inspection, troubleshooting techniques, repair, and adjustment.
Course Prerequisites/Corequisites
Ability to read, write, and speak the English language.
Course Objectives
Upon completion of this course, the student will be able to:
- Explain how a pinion and crown gearset change the direction of powerflow.
- Describe how steering and axle alignment affect tire wear, directional stability, and handling.
- Identify the components of the steering system.
- Remove and replace various components of the steering system.
- Identify and describe the types of suspension systems used on current trucks.
- Identify the wheel configurations used on heavy-duty trucks.
Major Topics to Be Included
- Various types of Heavy-Duty Truck Steering Systems
- Different types of Heavy-Duty Truck wheels configurations
- Fifth wheels and chassis components
- Various types of tires used on Heavy-Duty Trucks
- Steering and alignment diagnosis and repair