Download SSP448 Wheel Alignment - Basics PDF

TitleSSP448 Wheel Alignment - Basics
File Size3.8 MB
Total Pages48
Table of Contents
                            Contents
Basics
	Introduction
	Design configuration – vehicle position in an X-Y-Z axis system
	Suspension-related terms
Wheel Alignment
	Why do the wheels need to be aligned?
	Workshop equipment for wheel alignment
	Carrying out the wheel alignment
Using Wheel Alignment Stands for Other Systems
	Driver assistance systems
Axles
	Types of axle
Flowchart
	Flowchart for wheel alignment
                        
Document Text Contents
Page 1

Service Training

Self-study Programme 448

Wheel Alignment – Basics

Page 2

2

S448_002

For current testing, adjustment and repair
instructions, refer to the relevant service literature.

Today’s modern vehicles have increasingly complex and advanced suspension systems that need to fulfil the
requirements of comfort, sporty usage and especially road safety.

We now have very good means for measuring the suspension geometry and for correcting misaligned settings
to ensure that the high requirements set for the suspension system can also be met over the entire vehicle life
and after accidents.

Important
Note

In this self-study programme, you will learn about the background of wheel alignment,
for example:

● Suspension-related terms
● Preparation of the wheel alignment system
● Checking the wheel alignment system
● Why the alignment is carried out
● The tools used for wheel alignment
● How the alignment principle works

Page 24

24

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Wheel Alignment

Workshop equipment for wheel alignment
Special components are used for wheel alignment. They will be described over the following pages.

Wheel alignment platform

A special wheel alignment platform is used for wheel alignment.

● The wheel alignment platform must be clean and
the turntables and sliding plates must move
smoothly.

● The turntables and sliding plates should be locked
in place with pins or similar locking devices so that
they cannot move while the vehicle is driven onto
or off the platform.

In order to perform a precise wheel alignment and also to ensure reproducible measuring results, this alignment
set-up must meet certain requirements.

● All wheel contact points must be at the same
height.
The maximum permitted height differences should
be maintained both in the lowered position for the
initial and final measurements and in the raised
position for the adjustment work.

Turntable Turntable

Sliding plate Sliding plate

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Wheel alignment system

For precise wheel alignment, a corresponding
alignment system that is approved by Volkswagen
like, for example, the V.A.G 1813 F system from
Beissbarth, should be used.

However, we cannot look at all systems approved by
Volkswagen in this book. The following discussion
therefore describes wheel alignment using only a
computer-supported wheel alignment system as an
example.

The system comprises the following main components

● Computer with monitor and corresponding alignment software
● Input devices like keyboard and remote control
● Output unit, for example, printer
● Sensors
● Clamps for sensors

Wheel alignment
platform

Wheel alignment system/
wheel alignment computer

Turntable

Page 47

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Page 48

448

© VOLKSWAGEN AG, Wolfsburg
All rights and rights to make technical alterations reserved.
000.2812.28.20 Technical status 02.2011

Volkswagen AG
Service Training VSQ-1
Brieffach 1995
38436 Wolfsburg

❀ This paper was manufactured from pulp that was bleached without the use of chlorine.

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