What should be avoided when tightening a rigid tube that is too short for the flare to reach its seat?

When tightening a rigid tube that is too short for the flare to properly seat, it's essential to avoid pulling it into place, as this can significantly distort the flare. The flare connection is designed to create a tight seal by mating a conical surface with a corresponding surface. If the tube is pulled to the fitting instead of properly aligned, it can lead to a misaligned flare that does not seat correctly.

This distortion can prevent the proper sealing of the joint, potentially resulting in leaks and system failure. The integrity of hydraulic and pneumatic systems relies heavily on correctly fitted components, and any distortion of the flare compromises the effectiveness of the seal. Therefore, ensuring that the flare is properly aligned and seated from the start is crucial for maintaining the integrity and reliability of the system.