Small Repairs Do It Yourself; Pump - Kranzle therm 601 E-ST 18 Operating Manual

26
Small repairs
do it yourself
No water from the nozzle but the gauge
shows full pressure: Most likely the nozzle
is blocked.
(Inside the pressure gauge there 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. First unscrew gun and lance, then rinse hose
from any residues. Check water inlet filter for soiling. If the
problem still exists, take wire (paper clip) and push
cautiously through nozzle opening. If this procedure is not
successful, the nozzle has to be dismantled and cleaned
(from the backside) or even replaced, if necessary.
Pressure gauge shows little
pressure, the water from the nozzle comes in
squirts, the
Most likely the valves are soiled.
Proceeding:
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 seating inside the

pump.

Do not forget the O-ring during reassembly!
high-pressure hose vibrates.