Rebuilding a damaged hydraulic cylinder is a much better idea than purchasing a new one if the original one can be salvaged. If you're approaching a hydraulic cylinder rebuild of any capacity, use these tips before starting.
Carefully Analyze Damage First
You always want to have pretty clear plans before starting the rebuild process officially, and that starts with first analyzing the damaged parts of the hydraulic cylinder. It could be structural issues with the piston or maybe one of the seals is coming off and causing performance issues.