English 5.906-548.0 Rev. 00 (04/12)
71
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 Pump head
Fasten the test manometer to the high-pressure
connection.
Connect the high-pressure hose and gun to the
test manometer.
Install thenew high pressure nozzle.
Rotate the rotaring regulator on the gun to the po-
sition of highest pressure (direction "+").
Actuate the trigger on the gun and switch on the
appliance.
Rotate the rotating handle of the pressure regula-
tor on the pump anti-clockwise (direction "-") all
the way to the stop.
Pull off the rotary handle on the pressure regula-
tor.
Loosen the locknut of the adjustment screw for low
pressure.
Turn the adjustment screw low pressure together
with the spindle until the minimum working pres-
sure of the overflow valve of 3.5 to 4.0 MPa (35 to
40 bar) is reached on the test manometer.
Note
Turn in clock-wise direction to increase the working
pressure.
Turn in counterclockwise direction to decrease the
working pressure.
Secure the adjustment screw for low pressure by
tightening the locknut.
Check the working pressure, feed volume and
switch points of the pressure switches.
Then seal this setting.
6.2.2 Setting the minimum working pressure