Kränzle Technology; Water And Cleaning System; Lance And Spray Gun; Pressure Control Valve - Safety Valve - Kranzle HD 9/80 Original Operating Manual

12 Kränzle technology
In order to guarantee the safety of the machine, only
manufacturer's original replacement parts or manufacturer ap-
proved replacement parts should be used.

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.