Selective Control Valves - Pressure Adjustment on 450 Series

LX1045796-UN-22DEC10

A - Lock Function

B - Flow-Control Valve

C - Plug

NOTE: All selective control valves are factory adjusted to switch off at a pressure of 18000 kPa (180 bar; 2610 psi).

If the selective control valve in lock function switches off too early (control lever goes to neutral too early), or if it switches off too late or not at all (lever goes to neutral too late or not at all), proceed as follows:

1. Disconnect hydraulic hoses at the couplers (if equipped).

2. Engage the lock function (A) (as far as it will go to the right) and move flow control valve (B) to the mid-position.

3. Take out plug (C) and insert a 1.5 mm (0.06 in.) hex. socket key.

4. Start the engine and turn the screw clockwise as far as it will go.

5. Move SCV control lever to the raise or lower position (the control lever remains in the raise or lower position).

6. Turn the screw counter-clockwise until the control lever returns to neutral.

   NOTE: One full turn changes the pressure by approx. 2000 kPa (20 bar; 290 psi).

7. Re-install the plug.