What preparations should be made before replacing a hydraulic press filter?

Replacing a hydraulic press filter is the most common maintenance task, but improper operation can introduce contaminants and cause system failure. Therefore, thorough preparation is essential to ensure a smooth hydraulic press filter replacement. The following is shared by the editors of Jianlong Hydraulic Technology for your reference!

1. Core Safety Principles

1.1 Shutdown and Pressure Relief: Before any operation, ensure that the hydraulic press is completely stopped and all pressure has been completely released.

1.2 Cleanliness First: The core of the entire process is to prevent any contaminants from entering the system.

1.3 Use Genuine Products: Always use genuine or reliable filter elements. Inferior filter elements can be harmful to the system.

2. Key Pre-Replacement Preparations

2.1 Equipment Shutdown: Completely stop the hydraulic press, disconnect the main power supply, and display a "Maintenance in Progress, Do Not Close" warning sign.

2.2 System Pressure Relief:

2.2.1 Slowly operate the joystick to reciprocate all actuators (cylinders, motors) several times to relieve the system main pressure.

2.2.2 Locate the pressure relief valve or air filter on the hydraulic oil tank and open it to release any pressure inside the tank.

2.3 Verify Pressure Relief: Use a pressure gauge to confirm zero pressure at the system pressure point. If a pressure gauge is not available, carefully loosen the filter housing connection and observe if oil sprays out (not recommended, as it is risky).

2.4 Prepare Tools and Materials:

2.4.1 New Filter Element: Ensure it is genuine and the same model as the old one.

2.4.2 Suitable Wrench: Typically, a strap wrench or chain wrench is used to avoid damaging the filter housing.

2.4.3 Cleaning Cloth and Gloves: Lint-free cloths (such as Kimwipes) are ideal.

2.4.4 Oil Pan: Used to collect any used oil that leaks out.

2.4.5 Seal: If the filter housing is equipped with a separate O-ring or gasket, prepare a new one as a spare.

2.4.6 Funnel and Oiler: If new oil is needed.

Making the above preparations will effectively ensure the replacement of hydraulic press filters and ensure stable equipment operation. For more information/advice on hydraulic filter replacement or to purchase other high-quality hydraulic presses, please contact us (or scan the WhatsApp QR code below). Jianlong Hydraulic Technology will provide you with personalized, customized professional solutions and is dedicated to serving you.