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12
Kränzle technology
Water and Cleaning System
Water can be connected at mains pressure to the high pressure pump or it can be sucked
directly from a storage tank. The water is then forced under pressure by the high pressure
pump to the lance. The high pressure jet is formed by the nozzle at the end of the lance.
Environmental, refuse disposal and water protection regulations
must be observed!
Lance with trigger gun
The machine can only be operated when the safety trigger is squeezed. When the lever is
squeezed, the spray gun opens. The liquid is then pumped to the nozzle. The spray pressure
increases and quickly reaches the selected operating pressure. When the trigger is released,
the trigger gun closes and any further spraying of liquid from the lance is stopped. The
pressure gauge must show 0 bar.
The increase in pressure when the trigger gun is closed causes the pressure control valve-
safety valve to open. The motor is switched off by the pressure switch. When the trigger
gun is opened, the pressure control valve - safety valve closes, the motor is started and the
pump resumes pressure spraying from the lance with the selected operating pressure.
The trigger gun is a safety device. Repairs should only be
performed by qualified persons. Should replacement parts be
required, use only components authorized by the manufacturer.
Pressure control valve - safety valve
The pressure control valve - safety valve protects the machine from a build up of excess
pressure, and is designed not to permit an excess pressure to be selected for operation.
The limit nut on the handle is sealed with a spray coating. The operating pressure and
spray rate can be steplessly adjusted by turning the handle.
Replacements, repairs, new adjustments and sealing should only
be performed by qualified persons.
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