Repairing Major Body Damage - Pulling Direction
1. Impact Force Direction
1.
The impact force deforms the body through the divided elements of (A) and (B). Apply an equivalent or greater force to the body from the opposite direction to pull-out and restore the deformed shape back to original as much as possible.
2.
As the body stiffness varies from section to section, it is necessary to adjust the pulling forces and directions accordingly. The shape may not be restored completely by pulling only in the opposite direction.

2. Pulling Direction
Diagonal Pull-out:

Adjust the pulling force of (A) and (B) by changing the pull angles.
Perpendicular Pull-out:
Add the pulling forces (A) and (B) perpendicularly while adjusting their magnitude.
By pulling the body from two perpendicular directions, it is easier to control the change of direction of the composite force. This allows easier, step by step body dimensional restoration while confirming restoration progress.
When estimating the restored shape of the body, set the pulling anchor point on an extended line in the required direction. By gradually pulling that part of the body, the damaged section is eventually restored to the proper shape.

The pulling directions should be determined based on the skill level of the operators and/or the characteristics of the body and frame correction equipment used.

Refer to the manual issued by the body and frame correction equipment manufacturer for detailed specifications and information.