Breadcrumbs

Maintenance

Bleeding air from the circuit

When air is present in the system, the pump must be primed. The main causes of air in the system are as follows:

  • The pump has been switched off for a long time.

  • The suction filter has been opened.

  • The selected tank is empty and the pump is switched on.

  • The symptom of air in the circuit is as follows:

  • The pressure varies rapidly and with amplitudes greater than ± 0.5 bar | 7.25 psi.


To prime the pump:

  1. Make sure the pump is switched off.

  1. Position the valves:

    1. Valve A : position 2

    2. Valve B : position 4

    3. Valve C : position 5

    4. Valve D : position 100%

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  1. Engage the pump.

  1. Wait for the pressure to stabilize.

  2. If the pressure does not stabilise, check that there are no leaks and ensure that the liquid level in the selected tank is sufficient (position 5 or 6 of valve C).

  3. To adjust the working pressure, refer to the Adjust the working pressure chapter (Adjusting the working pressure).

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Checking nozzle orientation

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The nozzle angle should be 15°.

 

The angle can be measured easily using a number 8 open-end spanner. When the spanner grips the nozzle, it should be aligned parallel to the boom.


If a nozzle needs adjusting, do not do it yourself as this could upset the solenoid valve. Contact your dealer.