how to flush hydraulic system on excavator

Excavators are heavy-duty machines that are used in various excavation and construction sites. The hydraulic system used in excavators is an essential component that powers the movement of the machine's arms and bucket. With regular operation, the hydraulic system may accumulate debris, contaminants, and impurities. Over time, this can lead to system malfunction and reduced efficiency. Flushing the hydraulic system is a maintenance procedure that removes contaminated fluid and replenishes it with clean hydraulic fluid. In this article, we will outline the steps involved in flushing hydraulic system on excavator.

Gather Necessary Tools and Equipment

To flush the hydraulic system, you will need some essential tools and equipment. These tools include hydraulic fluid, an empty container, a clean rag, a bucket, and a drain pan. You will also need a wrench or pliers to loosen the hose fittings. Before beginning, ensure that you have gathered all the necessary tools and equipment for the job.

Drain the Hydraulic Fluid

The first step in flushing the hydraulic system is to drain the existing fluid from the system. Begin by locating the hydraulic tank and opening the tank drain valve. The tank drain valve is typically found at the bottom of the tank. Allow the hydraulic fluid to drain completely into the drain pan. After draining the fluid from the tank, disconnect the hydraulic hoses from the pump. Drain any remaining fluid from the system by loosening the fittings and allowing the fluid to drain into the bucket.

Clean the Hydraulic System

Once all the fluid has been drained, it is time to clean the hydraulic system. This involves removing any remaining contaminants in the system. Begin by using a clean rag to remove any dirt and debris from the hydraulic tank and gear. Use a clean container to collect any debris you remove. After cleaning the tank, use compressed air to blow out any remaining dirt and debris from the pump, hoses, and valves.

Replace the Hydraulic Fluid

After the hydraulic system has been cleaned, it is time to replace the hydraulic fluid. Begin by filling the hydraulic tank with the recommended hydraulic fluid. Next, reconnect all the hoses to the pump and tighten the fittings. Once all the hoses are connected, turn on the excavator and run it for a few minutes. This will ensure that the new hydraulic fluid is distributed throughout the system.

Conclusion

Flushing the hydraulic system on an excavator is an essential maintenance procedure that ensures that the system is running efficiently. Regular flushing of the system can increase the lifespan of the hydraulic components and allow for smoother operation of the machine. By following the steps outlined in this article, you can flush the hydraulic system on your excavator and keep it running smoothly. Always make sure to follow the manufacturer's recommendations when it comes to hydraulic fluid and maintenance for your specific model of excavator.