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Straightening General Straightening repairs are often required to restore NOTE: Basic and advanced training courses are Straightening is considered as the process of Body straightening requires practice and Note the following points during the process of • Secure the pulling unit with a safety cable. • Do not remove bonded glass prior to straightening. • Never apply heat during straightening. • If necessary, open doors or hoods/lids/liftgates during straightening. • Check dimensions and gaps continuously during straightening. • High-strength steel panels have a stronger tendency to retain their deformed shape. • During the straightening repairs, monitor the attachment of the pulling unit to the vehicle. • Carry out the straightening work in several stages, never in one pulling process. This • During individual straightening steps (under a pulling load), relieve tension by striking the Special features of non-monocoque Straightening is different to monocoque body If only the body is damaged in an accident, light NOTE: With strong straightening forces, these Straightening of chassis frames NOTE: High-strength steels must not be heated. If the body and chassis frame have to be The following conditions must be met: • The repair must be economically justified. • The production quality and stability of a frame must be achieved again after carrying out the • In principle, the driving and operating safety of the vehicle is paramount. • Cold straightening of deformed areas with sharp edged folds cannot be carried out. • Straightening with the application of heat (welding torch) requires much experience and • The temperature and duration of application of the heat are to be considered in particular. • Individual components of the frame, such as cross members, brackets, etc. can be replaced. G506658en 501-25- 30 Body Repairs - General Information 501-25- 30 DESCRIPTION AND OPERATION 201 |