28
29
4.1
Mounting of Spray Gun
Install the gun in a suitable and stable mounting device (e.g. fastening bolt, 6.0 mm
diameter).
4.2
Connection of Input Lines
Warning
Make sure not to confuse the control and atomizing air connections -risk of injury.
Warning
Material and air hoses which are installed with a hose grommet must be additionally
secured with a hose clamp.
The spray gun is now properly installed and ready for operation.
5
Operational Handling
5.1
Safty Warnings
Please pay special attention to the following safety warnings prior to taking this spray
gun into operation!
•
Wear proper respiratory protection masks and protective overalls, whenever you
are operating this spray gun. Air-borne particles represent a health hazard.
•
Make sure to wear suitable hearing protectors. The gun produces sound levels
of up to 83 dB (A) which may cause hearing defects.
•
Open fires, naked lights and smoking prohibited in the working area. Spraying
of readily flammable media such as paints and adhesive compounds is always
accompanied by the risk of fire and explosion.
Material conncetion
PK4
Identification:
M
Atomizing air inlet fitting
PK4
Identification:
SP
Atomizing air inlet fitting
PK4
Identification:
SP
Control air connection
PK3
Identification:
ST
• Connect the control air connector (via the 3/2-
way valve) to the spray gun at "ST" and set the
control air pressure (min. 4.5 bar).
• Connect the atomising air connector to the air
hose (filtered compressed air supply) and to
the atomising air connections "SP".
• Switch on the compressed air and set the re-
quired atomising air pressure at the reducing
valve (max. 6 bar).
• Fill the pressure pot with the material to be
sprayed and close the lid.
• Connect the material feed hose to the
pressure pot or the pump and to the materi-
al connection "M". Set the required material
pressure (max. 6 bar).
• Open the material valve on the pressure pot.
5.2
Starting/ Stopping Requirements
The following requirements must be met before the spray gun is operated:
•
The control air pressure must be available at the gun
•
The atomizing air pressure (round jet / flat jet) must be available at the gun
•
The material pressure must be available at the gun.
Attention
The material pressure should not exceed
•
6 bar, since otherwise the operational reliability of the spray gun will be impaired.
The control air pressure should be set at
•
minimum of 4,5 bar,
in order to operate the gun.
The operation of the spray gun can be started/stopped by way of the 3/2-way control
valve (see the operating instructions of the plant systems manufacturer).
Warning
It is important to remember to relieve the spray gun of all pressures when work is
terminated. Lines left under pressure may burst and the released material may injure
any persons in the vicinity.
5.3
Spray Pattern Test
Spray pattern tests should be performed whenever:
•
the spray gun is taken into operation for the first time;
•
the spraying medium is changed;
•
the spray gun was taken apart for maintenance or repair works.
The spray pattern is best tested using a workpiece sample, a sheet of metal, card-
board or paper.
5.4
Spray Pattern Adjustment
Material flow rate
In order to establish the material flow rate choose a suitable nozzle size. Furthermore
it is dependent on the upcoming material pressure.
Regulate the material pressure
Adjust the material pressure at the pump or the material pressure tank - make sure
to follow relevant instructions and safety warnings of the manufacturer!
Regulate the atomizing air pressure (round - / flat jet adjustment)
The atomizing air pressure (round -/ flat jet) is continuously variable adjusted at the
arranged air pressure-reducer in the plant system. Please comply with the operating
instructions and safety warnings issued by the manufacturer.
