The piston is a very important part accessories for concrete pump. The piston needs to contact with the concrete directly, and there are very strict requirements for sealing and wear resistance when working. If something happens abnormal, we should think about whether the piston has problems.

 The common piston problem is wear, so requires us to check the piston regularly. If the piston is worn, it needs to be replaced in time to avoid pulling the concrete cylinder.

Steps of replacing concrete piston

Before replacing parts, we need to adjust the pumping cylinder speed to 3-5 times per minute, and remove the water tank cover.

 Disassembly concrete piston steps

Open the water tank cap, and clean the water tank. Remove the dirt.

Close the ball valve of main cylinder non-rod chamber, and make the concrete piston back to the water tank.

Stop the engine, and remove the bolts & coupling clamp, and then remove the piston from the water tank