Standard

 

 R State Standard         £  Institutionally Developed          College: n/a

 

DET 215 - Steering and Suspension Systems I

Course Description

Introduces steering and suspension systems used on medium/heavy duty trucks.  Classroom instruction on Federal Motor Vehicle Safety Standards (FMVSS) is strongly emphasized.  Topics include:  cab components, tires, rims, & wheels, chassis components, manual & power steering systems, steer axles, and suspension systems.

  

Competency Areas

Hours

Cab Components     

Class

1

Tires, Rims, and Wheels

D. Lab

0

Chassis Components 

P. Lab/O.B.I.

7

Steering Column and Manual Steering Gear     

Credit

3

Power Steering Systems

 

 

Steering Axle Components

 

 

Front Suspension

 

 

 

Prerequisite:

DET 125

Corequisite:

     

 

Course Guide

 

Competency

After completing this section, the student will:

Hours

Class

D.Lab

P.Lab/

O.B.I.

CAB COMPONENTS

1

0

10

     

Demonstrate an understanding of the terms and definitions

 

 

 

 

Describe basic cab designs

 

 

 

 

Describe optional features on cabs

 

 

 

 

Identify vehicle identification numbers

 

 

 

 

Identify parts of a cab exterior

 

 

 

 

Identify parts of a cab interior

 

 

 

 

Demonstrate an understanding of the cab instruments and controls

 

 

 

 

Identify emergency safety equipment located in the cab

 

 

 

 

Identify types of driver seats

 

 

 

 

Identify main components of an air-suspended seat

 

 

 

 

Identify components of seat belts

 

 

 

 

Identify types of cab mounts

 

 

 

 

Identify types of cab lifting/tilting mechanisms

 

 

 

 

Describe safety rules to follow when working on cabs

 

 

 

 

Inspect, test, and adjust cab air suspension components and determine needed repairs

 

 

 

 

Inspect, test, and adjust driver’s air seat components and determine needed repairs

 

 

 

TIRES, RIMS, AND WHEELS

1

0

10

 

Demonstrate an understanding of the terms and definitions

 

 

 

 

Describe functions of tires, rims, and wheels

 

 

 

 

Identify materials used for tires, rims, and wheels

 

 

 

 

Identify types of tire construction

 

 

 

 

Identify types of tires

 

 

 

 

Identify parts of a radial tubeless tire

 

 

 

 

Identify types of tire damage

 

 

 

 

Describe radial tire wear conditions

 

 

 

 

Describe tire matching and mixing

 

 

 

 

Identify types of rims

 

 

 

 

Identify tire and rim sizes

 

 

 

 

Describe basic types of wheels

 

 

 

 

Identify mounting hardware for wheels

 

 

 

 

Identify types of rim and wheel damage

 

 

 

 

Describe wheel tightening sequences

 

 

 

 

Identify tire and wheel assembly runout and balancing

 

 

 

 

Identify safety precautions to follow when servicing tires, rims, and wheels

 

 

 

 

Describe tire maintenance

 

 

 

 

Diagnose unusual tire wear patterns, check tire pressure, and measure and match tires

 

 

 

 

Diagnose tire/wheel vibration, inspect mounting hardware, and check tire/wheel runout and balance

 

 

 

CHASSIS COMPONENTS

1

0

10

 

Demonstrate an understanding of the terms and definitions

 

 

 

 

Identify basic chassis components

 

 

 

 

Identify parts of a frame assembly

 

 

 

 

Identify frame construction

 

 

 

 

Identify frame reinforcements

 

 

 

 

Describe common procedures performed on frames

 

 

 

 

Describe guidelines for working on frames

 

 

 

 

Identify things to check on frames

 

 

 

 

Identify frame fasteners

 

 

 

 

Describe causes of stress leading to frame damage

 

 

 

 

Identify practices to follow in frame repairs

 

 

 

 

Identify basic procedure for checking alignment

 

 

 

 

Describe purpose of a fifth wheel

 

 

 

 

Identify basic types of fifth wheel mounting plates

 

 

 

 

Identify basic types of fifth wheel locking mechanisms

 

 

 

 

Identify main components of a typical fifth wheel

 

 

 

 

Identify parts of a trailer

 

 

 

 

Check and inspect vehicle frame alignment

 

 

 

 

Inspect and install or repair frame, hangers, brackets, and cross members

 

 

 

 

Inspect and service fifth wheel assemblies, pintle hitch, kingpin, and trailer plate

 

 

 

 

Couple and uncouple fifth wheel

 

 

 

STEERING COLUMN AND MANUAL STEERING GEAR

2

0

10

 

Demonstrate an understanding of the terms and definitions

 

 

 

 

Describe purposes of a steering column and steering gear assembly

 

 

 

 

Describe basic types of steering columns

 

 

 

 

Identify parts of a standard steering column and manual steering gear assembly

 

 

 

 

Identify parts of a tilt/telescoping steering column assembly

 

 

 

 

Identify parts of a universal joint

 

 

 

 

Describe basic types of manual steering gears

 

 

 

 

Describe operation of manual steering gears

 

 

 

 

Identify common problems or complaints on manual steering gears

 

 

 

 

Identify common adjustments made on manual steering gears

 

 

 

 

Identify specialty tools used for work on steering systems

 

 

 

 

Identify common lubricants used in steering gear assemblies

 

 

 

 

Diagnose and troubleshoot problems on the steering column and steering gear assembly

 

 

 

 

Remove steering wheel, inspect, repair, or replace  to proper alignment position

 

 

 

 

Remove, disassemble, and remount the steering gear assembly

 

 

 

 

Perform steering gear adjustments

 

 

 

 

Inspect and replace pitman arm on steering gear assembly

 

 

 

 

Inspect and replace steering U-joints

 

 

 

POWER STEERING SYSTEMS

1

0

10

 

Demonstrate an understanding of the terms and definitions

 

 

 

 

Identify purposes of power steering systems

 

 

 

 

Identify basic components of a power steering assembly

 

 

 

 

Identify basic differences between manual steering and power steering

 

 

 

 

Describe common types of power steering systems

 

 

 

 

Identify parts of an integral power steering assembly

 

 

 

 

Identify parts of a semi-integral power steering assembly

 

 

 

 

Describe power steering gear and valve operation flow for right turn, neutral position, and left turn steering maneuvers

 

 

 

 

Identify common types of lubricants used in power steering systems

 

 

 

 

Identify types of lines used on power steering assemblies

 

 

 

 

Identify basic types of power steering reservoirs

 

 

 

 

Identify types of hydraulic pumps used on power steering systems

 

 

 

 

Describe means of mounting power steering pumps

 

 

 

 

Identify common pump problems and possible causes

 

 

 

 

Diagnose, test, and troubleshoot problems on a power steering system

 

 

 

 

Remove and repair/replace power steering gear

 

 

 

 

Rebuild power steering gear

 

 

 

 

Remove and replace power steering pump; adjust belt if used

 

 

 

 

Inspect, clean, disassemble, and rebuild power steering pump; replace worn parts

 

 

 

 

Test and repair/replace flow control/pressure relief valve(s) on power steering pump

 

 

 

STEERING AXLE COMPONENTS

2

0

10

 

Demonstrate an understanding of the terms and definitions

 

 

 

 

Identify steering axle components

 

 

 

 

Identify steering linkage

 

 

 

 

Identify parts of a steering knuckle assembly

 

 

 

 

Identify lubricants used on steering axle components

 

 

 

 

Describe steering axle problems and causes

 

 

 

 

Define purposes of wheel bearings

 

 

 

 

Identify parts of a wheel bearing

 

 

 

 

Identify wheel bearing defects

 

 

 

 

Describe guidelines for servicing wheel bearings

 

 

 

 

Describe guidelines for adjusting wheel bearings

 

 

 

 

Describe purposes of wheel seals

 

 

 

 

Identify types of wheel seals

 

 

 

 

Describe guidelines for installing wheel seals

 

 

 

 

Select wheel bearings and seals

 

 

 

 

Remove, inspect, clean, replace, and adjust wheel bearings and seals

 

 

 

 

Repair or replace a steering knuckle assembly

 

 

 

 

Inspect and replace tie rod ends

 

 

 

 

Diagnose and troubleshoot the steering axle assembly

 

 

 

FRONT SUSPENSION

2

0

10

 

Demonstrate an understanding of the terms and definitions

 

 

 

 

Describe purposes of front suspension

 

 

 

 

Identify front suspension components

 

 

 

 

Describe functions of front suspension components

 

 

 

 

Describe basic designs of springs

 

 

 

 

Identify types of front spring assembly ends

 

 

 

 

Identify dimensions and load ratings of spring assemblies

 

 

 

 

Identify types of spring eyes

 

 

 

 

Identify shapes of U-bolts

 

 

 

 

Identify dimensions of U-bolts

 

 

 

 

Describe identification and measurement of shock absorbers

 

 

 

 

Inspect front suspension components

 

 

 

 

Remove and replace front spring suspension components

 

 

 

 

Suggested Resources

 

Media
Print
Audio/Visual
Web
Other

Web Manuals

Mitchell Information Systems.  (2008). “Tractor Trailer.net”.  San Diego, California.

Print

Multistate Academic and Vocational Curriculum Consortium.  (2007). “Diesel Technology Series”.   Stillwater, Oklahoma.

Norman, Andrew & others.   (2006). Diesel Technology.  Tinley Park, IllinoisGoodheart-Willcox.
ISBN 13: 9781590707708, ISBN: 1590707702

Huzij/ Bennett. (2009). Heavy Equipment Systems. Florence, KY: Delmar Cengage Learning,
ISBN 13: 9781418009502 ISBN 10: 1418009504

 

Posted: 10/14/08