Operation; Spray Lance, Regulation Of Pressure And Water Volume - Alto 03K Serie Manual De Instrucciones

3.3 Operation

Activate the high pressure washer by releasing the trigger of the spray handle (1). When starting up the
machine the pressure may be unsteady because of air in the pump system. After a short time the air has
escaped from the system and the pressure will become steady.
When the cleaner is not in use, secure the spray handle by turning the safety knob (2) into pos. 0.

3.4 Spray lance, regulation of pressure and water volume

1
The spray lance features 2 nozzles, a high pressure nozzle and a low pressure nozzle.
High pressure mode
The max. working pressure of the machine is reached when the pressure reducing valve (1) is completely
closed (B), and the water regulation valve (2) is quite open (turned in the indicator direction). In this position
only the high pressure nozzle is used - high pressure mode. The water volume is infinitely variable between
min. and max. performance.
With closed spray handle close the valve for regulation of the water volume (2) completely (in the opposite
direction of the indicator). This corresponds to a working pressure of 40 bar and a water volume of approx.
9 l/min. If you want a bigger water volume the valve (2) should be turned in the indicator direction until the
required change has been achieved. 1 turn provides an increase of pressure of approx. 50 bar.
Low pressure mode
When the reducing valve (1) is completely opened (A), the pressure will be completely reduced. The nozz-
le pressure will be approx. 4 bar. In this position both spray lances are used - low pressure mode.
The water volume is infinitely variable between min. and max. performance.
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2
1
2
Operating instructions
Always hold the spray lance with both
hands!
Always lock the spray handle when the
cleaner is not in operation.
Turn pressure reducing valve:
Clockwise (B): high pressure
Counter clockwise (A): low pressure
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