Pressure gauge shows little pressure, the water from the nozzle
comes in squirts: Most likely the valves are soiled.
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.)
Proceeding:
Switch off the cleaner. Pull plug from the
socket. Operate gun seveal times to
decrease the pressure.
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 replacedn.
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
Summary of Contents for HD 12/130
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