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 in Spraying position mode and set the AGITATION valve to HIGH + LOW.

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  1. Start the pump and 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.

INFORMATION

Valve C selects the tank: position 5 for the spray mixture tank and position 6 for the water tank.

  1. To adjust the working pressure, refer to the following chapter (Adjusting the working pressure).


Checking nozzle orientation

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The nozzle angle should be 8°.