PROPORTIONAL CONTROL VALVE FOR TRACTOR FRONT LOADER - LOAD SENSING LVM92 EHP

Description

LVM92-EHP is a monoblock valve designed for front loaders, offering excellent proportional operating characteristics and easy installation, with flow rates of up to 90 l/min and operating pressures of up to 250 bar.

The valve provides fully electro-proportional control, including the float function, regardless of machine load and operating conditions.

The kit includes the valve, a proportional control joystick, and electrical wiring.

The Load Sensing function provides even more precise proportional control and improved system efficiency.

Application

For proper system operation, carefully follow all steps below:

- Make the connection as shown above.

- Ensure that the hydraulic accumulator is correctly connected.

- Check that the inlet pressure does not exceed 250 bar.

- Ensure that the rated inlet flow is 90 l/min.

- Check that the connections on ports B1, A1, A2 and B2 are correctly connected.

- Ensure that the drain or leakage line is correctly connected.

- Check that the T (tank) and P (pressure) lines are connected and operating correctly.

The diagram shows a LOAD SENSING hydraulic system:

1. Proportional valve (LVM92 EHP) on the right side of the attachment interface.

2. Interface for the tractor front loader.

3. Additional shuttle valve for Load Sensing.

4. Hydraulic valves already installed on the tractor can be used for other consumers.

5. Tractor front loader.

Three hydraulic lines (P, T, P1) connect the LOAD SENSING proportional valve to the tractor’s hydraulic system:

- P – pressure line

- T – return line (tank)

- P1 – Load Sensing (LS)

Connect the valve as shown above:

- Make sure the system voltage is 12 V.

- Check that the power supply cable is connected correctly.

- The system must include a chain cable and a 120-ohm resistor.

- After connecting the joystick, make sure the ACAS LEDs light up green.

- Check that all cables are securely and properly connected.

- BLUE button: 6/2 directional control valve (momentary button)

- RED button: float function (latching button)

- GREEN button: slow/fast (latching button)

Float function: Move the joystick in the B1 (lowering) direction. While the joystick is in the B1 position, press the FLOAT button to activate float mode. Warning: Do not perform this operation when the tractor front loader is raised too high.