Kranzle 2160 TS Operating Manual page 21

Pressure gauge shows little pressure, the water from the nozzle comes
in squirts: Most likely the valves are soiled or sticky.
The pressure gauge shows little
pressure despite fully turned up pressure
regulation. The water from the lance
comes in squirts. The HP hose vibrates.
(Inside the pressure gauge is no water but
a filling with glycol to damp the vibration of
the pointer.)
Unscrew all 6 valves, one after the other
(hexagonal brass screws, 3 in a row,
vertically and horizontally)
Take out valve body (with green or red
plastic coating) and O-ring by means
of needle nose pliers. Check O-ring for
damage. In case of a damage the O-ring
has to be replaced.
Take a wire (paper clip) and clean valves
under running water. Also clean valve seat
inside the pump.
Do not forget the O-ring during
reassembly!
21