Straightening

General

Straightening repairs are often required to restore the original body shape. To do this, the vehicle must be placed on a straightening jig so that a pulling device can be used.

For additional information, refer to: Vehicle Specific Body Construction (501-26 Body Repairs - Vehicle Specific Information and Tolerance Checks, Description and Operation).
to identify specific material construction when any structural repairs are performed.

For additional information, refer to: Specifications (501-25 Body Repairs - General Information, Specifications).
to determine use of heat for repair of high-strength steels.

Before starting body straightening, the exact direction of impact must be determined. The straightening force must be applied in the opposite direction to that of the impact. Only in this way can it be guaranteed that the original shape will be achieved again.

• Secure the pulling unit with a safety cable.

• Do not remove bonded glass prior to straightening.

• Determine if application of heat for repairs is allowed.

• 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 prevents the risk of overstretching and of joints tearing out.

• During individual straightening steps (under a pulling load), relieve tension at the deformed areas while they are still under tension.

• Structural integrity must be restored to pre-accident condition when any repairs are performed to body or frame components

Straightening of Body and Frame Members

For additional information, refer to: Vehicle Specific Body Construction (501-26 Body Repairs - Vehicle Specific Information and Tolerance Checks, Description and Operation).
to identify specific material construction when any structural repairs are performed.

For additional information, refer to: Specifications (501-25 Body Repairs - General Information, Specifications).
to determine use of heat for repair of high-strength steels.

The following conditions must be met when performing any straightening repairs.

• The repair must be economically justified.

• The production quality and stability of body/frame structure must be achieved again after carrying out the repair.

• Individual components of the frame, such as cross members, brackets, etc. can be replaced.

• Application of heat must not exceed the recommended repair guidelines.

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