Adjust Safety Valve - Kärcher HDS 5/11 U Service Manual

6.5 Adjust safety valve

1 Adjusting screw
2 High pressure connection
3 Safety valve (built into the safety block)
4 Drain bore
Increase the opening pressure:
 Turn the adjustment screw in a clockwise direc-
tion.
Decrease the opening pressure:
 Turn the adjustment screw in an anticlockwise di-
rection.
Note
The correct setting of the safety valve is only possible
if the top part is removed, the leaf spring has been
taken from the electric box of the motor and if the
shut-off valve and the pressure gauge are connected.
Opening pressure: See Specifications
Quick test:
Completely installed appliance must be turned on
and off several times by opening and closing the gun.
No water is to emerge from the drain bore of the safe-
ty valve.
44
English 5.906-487.0 Rev. 00 (04/10)