Assembly; Mounting Of The Spray Gun; Connection Of Input Lines; Operational Handling - WALTHER PILOT PILOT WA 81 Betriebsanleitung

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Assembly

The spray gun is delivered fully assembled. Before using it, the following steps
should be carried out:
4.1 Mounting of Spray Gun
Install the gun in a suitable and stable mounting device as shown in the following
example:
Use mounting pin (1), diameter 6 mm.
Other mounting devices upon request.
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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.
• 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 required 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
material connection „M". Set the required
material pressure (max. 6 bar).
• Open the material valve on the pressure
pot.
The spray gun is now properly installed and ready for operation.
Material conncetion
PK4
Atomizing air inlet fitting
Identification: M
PK4
Identification: SP
Control air connection
Atomizing air
PK3
inlet fitting
Identification: ST
PK4
Identification: SP
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5

Operational Handling

5.1 Safty Warnings
Please pay special attention to the following safety warnings prior to taking this
spray gun into operation!
• The spray gun must be used only by trained and qualified persons.
• 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 haering 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.
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 spray gun works with the equal pres-
sure method. This means that the atomising air pressure and the material pressure
must be almost the same.
The control air pressure should be set at • minimum of 4,5 bar, in order to ope-
rate 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 manufac-
turer).
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 inju-
re 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.
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