66
English
5.906-432.0 Rev. 00 (06/15)
1 High pressure outlet, working pressure
2 Manometer, working pressure
3 Pressure retaining valve (open)
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" (open)
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.
After switching on the appliance and with the gun open, the
contactor will be actuated and closes the contacts.
This will start the motor and the pump will build up the
working pressure.
Open the pressure retaining valve and the pressure switch
"ON", the overflow valve and the pressure switch "OFF" re-
main closed.
Due to the closed pressure swtich, the motor contactors
also remain closed.
6.32.2 The appliance is switched on and the gun is open
24 Volt
6
1
3
4
7
8
9
11
5
10
2
Содержание HDS 10/20 M
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Страница 58: ...58 English 5 906 432 0 Rev 00 06 15 6 28 Functional diagram of pressure water operation water cooled motor...
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