Body straightening is complicated and requires special equipment. Only trained technicians should attempt to straighten the frame.
Perform a complete analysis of the condition before completing any steps to straighten the body. Analyzing the cause of failure helps determine the correct sequence of steps in the repair. Use corrective procedures in order to reverse the flow of the damaging forces. In many instances, pressure must be applied from different directions at the same time.
Important: Do not heat beyond 606°C (1,200°F). A red glow indicates that
the material is overheated. Overheating will result in the following conditions:
• Distortion • Stretching • Changes in the characteristics of the metal
Careful use of controlled heat is critical. The following items are major sources of trouble:
| • | Too much heat |
| • | Too little heat |
| • | The improper application of heat |
Heat the area that is stretched as the frame is straightened.
Heat the area after sufficient pressure is exerted in order to cause a slight checking or silvery cracks to appear on the surface of the metal.
Gradually increase the pressure while heating.
