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68
English
5.906-432.0 Rev. 00 (06/15)
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 Reduction 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 electronics, 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 es-
capes.
The pressure switch "ON" 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 working pres-
sure.
6.32.4 The gun is reopened when the appliance is switched on
24
Volt
6
1
3
4
7
8
9
11
5
10
2
Summary of Contents for HDS 7/12 M
Page 14: ...14 English 5 906 432 0 Rev 00 06 15...
Page 60: ...60 English 5 906 432 0 Rev 00 06 15 6 29 Functional diagram vacuuming operation...
Page 125: ...English 5 906 432 0 Rev 00 06 15 125 Circuit diagram 0 089 021 0 HDS 7 12...
Page 126: ...126 English 5 906 432 0 Rev 00 06 15 Circuit diagram 0 089 025 0 HDS 8 18 HDS 9 18...
Page 128: ...128 English 5 906 432 0 Rev 00 06 15 Circuit diagram 0 088 952 0 HDS 10 20 HDS 12 18...
Page 130: ...130 English 5 906 432 0 Rev 00 06 15 Circuit diagram 0 089 9026 0 HDS 13 20...