DISL 36 - Suspension and Steering
- Prerequisite: DISL 20
- DISL majors only
Classroom instruction and laboratory training in suspension and steering component names and functions; frame inspection and repair; alignment of all axles; proper jacking and support of frame; overhaul of steering gear box and king pins; inspection of springs and hangars; driveline angle; checking and adjustment to front end caster, camber, toe, height, and tire balance; KPI and centering of gear box. Laboratory instruction will also include the disassembly, inspection, assembly, and adjustment of actual truck suspension systems.
Contact: 90 hours lecture/lab per term
Student Learning Outcomes
Upon successful completion of DISL 36, the student will be able to:
- Identify and describe the four types of suspension systems used on today's heavy-duty trucks
- Name the basic suspension parts and their function in a spring, rubber cushion, air bag, equalizing beam, and torsion bar systems
- Demonstrate replacement procedures to repair a defective suspension system
- Explain the relationship between suspension system alignment and axle equipment
- Identify the steering system components on a heavy - duty truck
- Describe the procedure to inspect front axle components for wear
- Explain how toe, caster, camber, axle inclination, turning radius, and axle alignment affect tire wear, handling and directional stability
- Demonstrate how to check and evaluate driveline working angles
- List the difference between static and dynamic methods of wheel balancing
- Describe the components and operation of a recirculating ball and a worm roller type steering gear
- Explain how to check and adjust the preload and backlash on a manual steering gear
- Explain the operation of a power steering system and identify the system's components