Product Manual

27
Small repairs - do it yourself
The stainless steel pressure gauge shows
low pressure despite fully turned up pres-
sure regulation. The water from the lance
comes in squirts. The high pressure hose
vibrates.
(Inside the stainless steel pressure gauge is
no water but a filling with glycol to damp
the vibration of the pointer.)
Proceeding:
Unscrew all 6 valves, one after the other
(hexagonal brass screws, 3 in a row,
vertically and horizontally)
Take out valve body 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.
Do not forget the O-ring during reassembly!
Problem
Irregular jet from nozzle.
The stainless steel pressure gauge shows low pressure.
Cause
Most likely the valves are soiled or sticky.