Daikin Hydraulic Unit EHU2504

Turn the cap in the counterclockwise direction by hand and remove it.

Air blow the filter section to blow off deposits and adhering material.

Remove dirt from inside the strainer’s cylinder.

Fit the cap by turning in the clockwise direction by hand to the position where it stops.

Wear protective glasses when using air blow to avoid getting deposits and dirt in your eyes.

Set a drain oil receiver below the oil drainage port

Open the oil drain plug (M12 × 20L) and drain out all of the hydraulic oil in the tank

Remove the four hexagonal bolts (M8 × 20L) securing the top plate and tank

Hoist the motor by its suspension plates to separate it from the tank

Loosen and remove the suction strainer with an adjustable wrench

Air blow the filter section to blow off deposits and adhering material

Remove dirt from inside the strainer’s cylinder

Remove the hexagon socket head T plug (Rc 1/4)

Mount the fixed throttle (NPTF1/16 × φ0.8)

Wrap sealing tape around the hexagon socket head T plug (Rc 1/4)

Fit the hexagon socket head T plug (Rc 1/4) as it was

Verify the stability of the pressure after mounting

Check for any leaks after installation

Record any issues encountered during the procedure

Wear protective glasses and gloves

Ensure power is OFF before starting

Use air blow cautiously to avoid foreign matter in eyes

Check for oil flow from piping during disassembly

Ensure no residual pressure in piping before starting

Collect hydraulic oil in a separate oil receiver to prevent tank overflow

Check for abnormal noise, vibration, or heat generation

Stop the unit running and shut off the source power supply.

Wear protective glasses and gloves.

Ensure no excessive forces are applied to the power cable or connector of the DC fan.

Disconnect the connector for the DC fan wiring.

Remove the hose clamps and pull off the two hoses fitted to the oil cooler. Fit a blind plug to the hoses to prevent oil leakage.

Remove two cross-recessed hexagonal bolt and washer assemblies and remove the oil cooler.