Operation; Monitoring During Operation; Open/Close Nozzle; Adjust Flow Rate - Rosenbauer O-stream nozzle Instrucciones De Servicio

5

Operation

5.1

Monitoring during operation

The following dangers must be considered during operation:
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•
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If a danger occurs take appropriate countermeasures.
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5.2 Operation
5.2.1

Open/close nozzle


Open nozzle
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
Close nozzle
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
5.2.2

Adjust flow rate

The nozzle is equipped with a flow rate adjustment .
The flow rate is marked on the flow rate adjustment.

Adjusting flow rate:
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
To avoid cavitation, make sure that the pump output is higher than the water
outlet volume set on the nozzle.
The pump can cavitate through the discharge of too much extinguish-
ing agent.
Loose ground can be softened by rain or fire fighting water and can ef-
fect the stability.
Watch the extinguishing agent jet.
Reduce flow rate to prevent cavitation.
Change location if stability is insufficient.
The nozzle can be opened or closed via the bracket shift lever.
Slowly and in a controlled manner, push the bracket shift lever of the
nozzle into the rear position to open the nozzle.
Bracket shift lever points towards the broad side of the pictogram.

Pressure outlet of the nozzle is opened.
Slowly and in a controlled manner, push the bracket shift lever of the
nozzle into the forward position to close the nozzle.
Bracket shift lever points in direction of the pointed side of the pic-

togram.
Pressure outlet of the nozzle is closed.
Flow rate at a working pressure of 6 bar.
Adjust the flow rate adjustment to the desired flow rate.
The nozzle is adjusted to the desired flow rate.
The flow rate can be adjusted during operation.
Operation
Monitoring during operation
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L09
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