Launch X-631 Wheel Aligner Maintenance Manual                                                  Preface 
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Preface 
Target Reader 
  This maintenance manual is suitable for the following people: the first, the people who  has some basic knowledge on 
wheel alignment or people who has some automobile service and maintenance experience and is specializing in the work 
of automobile maintenance; the second, people who is familiar to the wheel aligner products of Launch Tech Co., Ltd. and 
has wealthy maintenance experience. 
 
Purpose 
  The purpose to compile this manual is to serve the after-sales technical personnel of Launch Tech Co., Ltd., especially for 
the  technical  personnel  who  have  contacted  the  wheel  aligner  products  for  no  long  time,  this  manual  provides  the 
corresponding knowledge on wheel alignment and technical support to them. 
  The main content of this manual is to introduce the wheel aligner of model X-631. In this manual, author describes the 
wheel  aligner  by  using  a  lot  of  practical  pictures  and  explication  to  avoid  unnecessary  misunderstanding  caused  by 
over-many  special  items.  At  the  same  time,  the  manual  provides  the  detailed  specifications  of  each  key  device  for 
servicing personnel looking up. Thus, the after-sales service personnel can rapidly grasp the wheel alignment products of 
Launch Tech Co., Ltd. 
 
Required Knowledge 
  In order to understand and grasp the content of this manual more rapidly, the related personnel should have the following 
basic knowledge: 
  Basic computer knowledge (including the aspects of hardware and software), can assemble and operate computer 
skillfully. 
  Basically trained on wheel alignment measurement, having the basic knowledge on wheel alignment. 
  Having the basic knowledge on electrical/electronic technology, can do it by him-self.