Speed - Kärcher HDS 9/50 De Tr1 Service Manual

1 Adjustment screw, high pressure
2 Lock nut, adjustment screw, high pressure
3 Spindle, pressure and quantity regulation
4 Housing, overflow valve
Adjustment overflow device
NOTE
The adjustment is done with the test nozzle.
 Install the test manometer (special tool) to the high-
pressure connection.
 Connect the high-pressure hose with gun and rotary
regulator to the test manometer.
 Open gun.
With HDS 13/20 and HDS 17/20: Completely close the
pressure and volume regulation on the gun (set to "-").
 Open the lock nut on the overflow device.
 Turn the adjustment screw high pressure until the test
pressure on the pressure gauge is reached, see tech-
nical data.
NOTE
If this screw is turned clockwise, the pressure is increased;
and if it is turned counter-clockwise, the pressure is de-
creased.
 After adjustment, secure the adjustment screw high
pressure by means of a lock nut.
 With unit types HDS 9/50 and 13/35, install the
sheathed cable of the overspeed control in a way that it
is no longer slacking at the preselected minimum

speed.

 Check working pressure and flow rate with the series
nozzle.
 Seal the adjustment screw for high pressure and the
lock nut with safety lacquer.
English 5.906-736.0 Rev. 00 (07/15)
175