Adjusting The Spray Pattern; Retooling The Spray Gun - SIMALFA G1 Betriebsanleitung

Warning
Keep your hands or other parts of the body away from the front of the spray gun -
imminent risk of injury.
Warning
Make sure that no other people are in the spraying zone when the spray gun is
started - imminent risk of injury.
1. Start the gun to produce a spray pattern sample.
2. Inspect the sample and, if necessary, adjust the settings of the gun.
5.4

Adjusting the Spray Pattern

The spray pattern of the SIMALFA G1 can be changed by adjusting the gun as fol-
lows:
Material
connection
Adjusting the material pressure:
The material pressure can be adjusted by modifying the mount height of the free
flowing system container.
5.5

Retooling the Spray Gun

If a jet contour other than those already described is desired, the spray gun has to
be retooled. Air cap, material nozzle and material needle together form a unit - the
nozzle insert assembly. Always change the complete insert assembly to maintain
the desired spray finish quality.
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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 counter-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 screw-
ing the adjusting screw in or out. The flow rate is
increased by turning the screw counter-clock-
wise (screwing out) and decreased by turning
the screw clockwise (screwing in).
Adjusting the atomising flow rate:
The atomising air flow rate can be adjusted by
screwing the adjusting screw in or out.
Air connection
Warning
Atomizing air and material input must be shut off prior to retooling - risk of injury.
Note
Please refer to the exploded view at the beginning of this manual to perform the
steps detailed below.
Replacement of Material Nozzle and Air Cap
1. Unscrew the sleeve nut (item 1).
2. Remove the air cap (item 2).
3. Remove the material nozzle (item 3) from the gun body, using wrench SW 13.
Reassembly is performed in reverse order.
Replacement of Material Needle
1. Unscrew the the adjusting screw (item 29) and remove the needle spring
(item 28).
2. Extricate the material needle (item 27) from the gun body.
Material needle - length:
133 mm
Reassembly is performed in reverse order. An initial air inlet is not necessary.
Note
All moveable and sliding parts should be lubricated with a non-acidic, non-resino-
genic grease prior to assembly, we recommend the ALFA Hand Cleaner for the
maintenance of the spray gun.
The spray gun must be flushed out before the first use to prevent contamination
of the spraying material.
Replacement of Air Distribution Ring
1. Remove the material nozzle and air cap,
see above.
2. Change the air distribution ring.
Reassembly is performed in reverse order.
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