What is rebuilding of a shock absorber?

Rebuilding a shock absorber refers to the process of disassembling the shock absorber, replacing any worn or damaged parts, and reassembling it. This is typically done when a shock absorber has reached the end of its service life or is no longer functioning properly.

The process of rebuilding a shock absorber typically involves the following steps:

1. Removing the shock absorber from the vehicle and disassembling it. This typically involves separating the shock absorber into its component parts, such as the piston, cylinder, and seals.
2. Inspecting the component parts for wear or damage, and replacing any worn or damaged parts. This may include things like seals, bushings, and other internal components.
3. Cleaning the component parts and reassembling the shock absorber. This typically involves reassembling the component parts and adding new hydraulic fluid.
4. Testing the shock absorber to ensure that it is functioning properly. This may involve attaching the shock absorber to a test rig and subjecting it to different types of inputs to simulate real-world driving conditions.

Overall, rebuilding a shock absorber involves disassembling, repairing, and reassembling the shock absorber in order to restore its performance and extend its service life. This is typically done by a trained professional with experience in rebuilding shock absorbers.