Kärcher HDS 7/12 M, Руководство по обслуживанию

Страница: 116 / 131

116
English 5.906-432.0 Rev. 00 (06/15)
1 Adjustment screw, high pressure
2 Lock nut, adjustment screw, high pressure
3 Spindle, pressure and quantity regulation
4 Adjustment screw, low pressure
5 Lock nut, adjustment screw, low pressure
6 Housing, overflow valve

Fasten the test manometer to the high-pressure con-
nection.

Connect high-pressure hose with standard gun to the
test pressure gauge.

Install the new high pressure nozzle.

Open standard gun.

Turning on the appliance.

Rotate the rotating handle of the pressure regulator on
the pump anti-clockwise (direction "-") all the way to the
stop.

Pull off the rotary handle.

Loosen the locknut of the adjustment screw for low
pressure.

Turn the adjustment screw low pressure and the spin-
dle until the minimum working pressure is reached.
Note
If this screw is turned clockwise, the pressure is increased;
and if it is turned counter-clockwise, the pressure is de-
creased.

Secure the adjustment screw for low pressure by tight-
ening the locknut.

Check the working pressure, feed volume and switch
points of the pressure switches.

Then seal this setting.
Note
With minimum pressure and volume adjustments and
when using the supplied steam nozzle, the pressure must
not exceed 32 bar.
Service group does not contain any maintenance and in-
spection points.
7.50.2 Setting the minimum working pressure
8 Care and maintenance