Adjusting The Spray Pattern - WALTHER PILOT PILOT III F-HD Instrucciones De Servicio

• 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-HD and III K) or
83 dB(A) PILOT III F-MD).
• 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 pres
surised condition might burst and their contents may injure persons standing near-
by!
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Adjusting the Spray Pattern

The spray pattern of the PILOT III F / III K can be changed by adjusting the gun as
follows:
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.
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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 tur-
ning the screw anti-clockwise (screwing out) and
decreased by turning the screw clockwise (screwing in).
Air connection
(Material Connection Version):
7 Correction of Spray Pattern
desireable spray-painting result
Spray pattern Fault
The fan is too large in the cen-
tral area
The fan is too large in the extre-
mity area
Bad atomisation
Not enough product inside of
the fan
Fan divided in central area
The fan is convex
Gun is dripping Material needle or nozzle soiled
or damaged
The setting screw (N° 14) turned
too far to the back
Pulsating or unstea- Not enough material in material
dy jet
tank
Cup is tilted too much during
spraying operation
Material nozzle loose or dama-
ged
Material is overweight for opera-
tion with syphon-feed
cup
Gun keeps blowing Valve cone (N° 17) or
in off-position
valve stem (N° 16) damaged
Adjustment
• Widen the fan using the
regulation air fan valve
• Reduce the fan using the
regulation air fan valve
• Increase the atomisation
air pressure
• Decrease atomising air
pressure
• Increase nozzle diameter
• Reduce atomising air
pressure
• Increase material pres-
sure
• Drcraese material pres-
sure
• Increase atomising air
pressure
• Clean or replace
• Adjust by turning clock-
wise
• Top-up material level
• Keep it level
• Fasten or replace
• Deliver with pressure
tank or pump system
• Replace
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