Small Repairs - Do It Yourself - Kranzle quadro 11/140 TST Operating Manual

Small repairs - do it yourself

Problem
No water from nozzle although the high pressure cleaner is running.
The stainless steel pressure gauge shows full pressure.
Cause
Most likely the nozzle is blocked.
Pull plug from socket prior to starting any repair work!
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The stainless steel pressure gauge shows
full pressure, but from the nozzle comes
only little water or no water at all.
(Inside the stainless steel pressure gauge is
no water but a filling with glycerin to damp
the vibration of the pointer.)
Proceeding:
Switch off the high pressure cleaner. Pull
plug from the socket. Operate safety trigger
gun catch several times to decrease the
pressure.
Unscrew safety trigger gun and lance first,
then rinse high pressure hose to remove
possible soiling.
Check water inlet filter for soiling.
If the problem still exists, take wire (paper
clip) and push through nozzle opening. If
this procedure is not successful, the nozzle
has to be replaced.
Small repairs - do it yourself
Problem
Irregular jet from nozzle.
The stainless steel pressure gauge shows low pressure.
Cause
Most likely the valves are soiled or sticky.
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 glycerin 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!
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