What is the primary objective of hydraulic tube bleeding?

The primary objective of hydraulic tube bleeding is to ensure that hydraulic systems function correctly by eliminating air from the hydraulic lines. This process is crucial because the presence of air can lead to erratic system performance and reduced efficiency. When bleeding hydraulic tubes, the goal is to expel trapped air without causing turbulence or damaging the tubes, while achieving smooth bends is essential for maintaining system integrity and preventing issues like kinks or restrictions.

Obtaining a smooth bend without flattening the tube is essential for preserving the structural integrity and functionality of the hydraulic system. If bends are too sharp or not executed properly, they can create stress points that may lead to fluid leaks or failures within the system, which can result in operational hazards.

In contrast, replacing hydraulic fluid refers to maintenance routines intended to refresh the system but does not directly relate to the specific process of bleeding air. Increasing pressure in the system is a function of system operation rather than the bleeding process itself. Checking for leaks, while important in the maintenance of hydraulic systems, is not the focal point of hydraulic tube bleeding. Instead, the preference remains on ensuring air is purged for optimal performance.