Operation CHARM: Car repair manuals for everyone.

Frame Straightening

FRAME STRAIGHTENING

WARNING:
- If equipped with fire suppression system, depower the system. For important safety warnings and procedures refer to Fire Suppression System.
- The electrical power to the air suspension system must be turned off prior to hoisting, jacking or towing an air suspension vehicle. Failure to do so can result in unexpected inflation or deflation of the air springs, which can result in shifting of the vehicle during these operations.


1. WARNING: Straightening of the front frame rail convolute is prohibited. Failure to follow these instructions may result in personal injury.

When straightening the frame, make sure the following requirements are met:

- CAUTION: Reposition and/or shield any fuel lines, brake lines, or wiring harness or component in the heated area.

If heat is needed to straighten a frame member, keep the temperature below 650 °C (1,200 °F) (a dull red glow). A temperature sensitive thermal melt crayon should be used to monitor heat buildup.
- Heat should be kept to a minimum area so that the hardness of the metal is not affected.
- Straightening should only be attempted on frames that fail to meet specifications of the diagonal checking method or where damage is apparent.
- Straightening should be limited to parts which are not severely bent.
- Reposition and/or shield any fuel lines, brake lines, or wiring harnesses or components in heated area.

2. WARNING: If equipped with fire suppression system, repower the system. For important safety warnings and procedures refer to Fire Suppression System.

If equipped with fire suppression system, repower the system.