Operational Handling; Adjusting The Spray Pattern - WALTHER PILOT III F Mode D'emploi

Design: Material Inlet
1. Connect the air hose to the air reduction valve (cleaned compressed air) - or an
air cleaner - and to the air inlet of the spray gun.
2. Switch on the pneumatic system and set the desired atomizing air pressure at
the reduction valve.
3. Fasten the material inlet hose to the material pressure tank or to the material
pressure control of a pump system and to the material inlet of the spray gun.
4. Fill the material pressure tank with material and close the lid.
5. Set the desired material pressure at the air pressure reduction valve; if the mate-
rial is supplied via pump systems, the material pressure is adjusted via the
adjustment wrench at the material pressure control.
6. Open the material tap at the pressure tank.
7. To let escape the air contained in the material hose, actuate the trigger until a
uniform jet emerges from the nozzle; the spray gun can then be closed again.
The spray gun can then be taken into operation.
5

Operational Handling

The following requirements must be met before the spray gun can be put into
operation: The material pressure must not exceed 8 bar. The air pressure must not
exceed 8 bar.
1. Before using the gun, first carry out a spray pattern test. The spray pattern can
best be tested on a sample workpiece or on a sheet of metal, cardboard or
paper.
2. If necessary, adjust the settings of the spray gun
Pay attention to the following safety warnings when using the spray gun!
• Always wear proper respiratory protection masks and protective overalls when
using the spray gun. Airborne particles can damage your health!
• Always wear suitable hearing protectors in the vicinity of the spray gun. The
spray guns produce sound levels of approximately 85 dB(A) (PILOT III F and III
K) or 83 dB(A) PILOT III F-MP).
• Ensure that the working area is absolutely free from open fires and naked lights
and that smoking is strictly prohibited. The spraying of flammable liquids (e.g.
paint, adhesives) is accompanied by the risk of fire and explosion.
• When spraying materials, keep hands and other parts of the body away from the
nozzle of the gun when it is under pressure. Risk of injury!
• Relieve the spray gun of all pressures when work is complete. Lines left in a
pressurised condition might burst and their contents may injure persons
standing nearby!
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6

Adjusting the Spray Pattern

The spray pattern of the PILOT III F / III K can be changed by adjusting the gun as
follows:
Setting a Wide or Round Jet
The adjusting screw is used to adjust the width of the spray
jet. The jet can be changed to a wide jet by turning the
screw anti-clockwise (screwing out) and to a round jet by
turning the screw clockwise (screwing in).
Setting the Material Flow Rate
The material flow rate can be adjusted by screwing the
adjusting screw in or out. The flow rate is increased by
turning the screw anti-clockwise (screwing out) and
decreased by turning the screw clockwise (screwing in).
Material con-
nection
Adjusting the Material Pressure
The material pressure can be adjusted only at the controls of the pumping system or
at the material pressure tank. Please observe the operating instructions and safety
warnings issued by the manufacturers concerned.
6.1 Correction of Spray Pattern
Spray pattern Fault
The fan is too large in
the central area
The fan is too large in
the extremity area
Bad atomisation
Not enough product
inside of the fan
Fan divided in central
area
The fan is convex
33
Air connection
(Material Connection Version):
desireable spray-painting result
Adjustment
• Widen the fan using the regu-
lation air fan valve
• Reduce the fan using the
regulation air fan valve
• Increase the atomisation air
pressure
• Decrease atomising air pres-
sure
• Increase nozzle diameter
• Reduce atomising air pressure
• Increase material pressure
• Decraese material pressure
• Increase atomising air pressu-
re