English 5.906-548.0 Rev. 00 (04/12)
45
1 High pressure outlet (without pressure)
2 Manometer (without pressure)
3 Pressure retaining valve (closed)
4 Pump is running
5 Rotary knob
6 Overflow valve (closed)
7 Throttle bore
8 Pressure switch "OFF" (closed)
9 Water inlet
10 Motor contactors (K1) (closed)
11 Pressure switch "ON" (closed)
Note
The shown functions of the preessure switches and
motor contactor are for understanding purposes only.
In reality, the information from the two pressure
switches is transferred directly to the control electron-
ics, which in turn controls the motor contactor.
As soon as the gun is opened, the pressure that is
locked in between the pressure retaining valve and
the gun escapes.
The pressure switch closes, which in turn will close
the control circuit.
The motor contactor is actuated, closes the contacts,
the motor starts up and the pump rebuilds the work-
ing pressure.
5.13.4The gun is reopened when the appliance is switched on
24
Volt
6
1
3
4
7
8
9
11
5
10
2