What should be done if the fluid level of the shock strut is extremely low?

When the fluid level of the shock strut is extremely low, bleeding the strut during servicing is the appropriate action because it ensures that the strut can function properly. Bleeding allows any air that may have entered the system to be removed, which can affect the performance of the shock strut. Air can cause a spongy feel and reduce the damping capability, leading to inefficient shock absorption.

While refilling the strut fluid is necessary to restore the proper fluid level, it is just one step in ensuring the shock strut functions correctly. If the fluid level is low, it often indicates that there may be a leak, so inspecting for leaks should be a priority as well. Replacing the shock strut may be necessary in some cases, but it is generally considered a last resort after all other troubleshooting steps, such as bleeding and inspection, have been performed.