33
32
2. Check the hoses for tightness.
The spray gun is now properly installed and connected and ready for operation.
5
Operational Handling
5.1
Safety Warnings
Pay special attention to the following safety warnings prior to taking the spray gun
into operation!
•
Wear proper respiratory protection masks and potective overalls whenever ope-
rating this spray gun. Air-borne particles represent a health hazard.
•
Wear suitable hearing protectors. Spray guns produce sound levels of up to 83
dB(A), which are very likely to cause hearing defects.
•
Open fires, naked lights and smoking is prohibited in the working area. Spraying
of readily flammable media (such as laquers, adhesive compounds) is always
accompanied by the increasing risk of fire and explosion.
5.2
Starting / Stopping Requirements
The following requirements must be met, before this spray gun can be taken into
operation:
•
the control pressure must be available at the gun
•
the atomizing air pressure must be available at the gun
•
the material pressure must be available at the gun.
Caution
The material pressure shall not exceed
•
6 bar,
as, otherwise, the functional reliability of the spray gun will suffer. Adjust the control
air pressure to
•
at least 4 bar,
in order to operate the spray gun.
High switching frequencies can loosen the draw bar of (pos. 24). Always remove the
draw bar of (pos. 24) before taking the machine into operation.
Warning
It is important to remember that the spray gun must be relieved of all pressures
whenever work is terminated. Lines left in pressurized condition could burst, with
their contents likely to injure anybody present nearby.
5.3
Spray Pattern Test
Spray pattern tests should be performed whenever:
•
the spray gun is taken into operation for the 1st time.
•
the spraying medium is changed.
•
the spray gun was taken apart for servicing or repairs.
The spray pattern is best tested using a workpiece sample, a sheet of metal, card-
board or paper.
Warning
Keep your hands and other extremeties away from the front of the spray gun - immi-
nent risk of injury.
Warning
Make sure that nobody is present in the spraying zone when the gun is started
- imminent risk of injury.
1. Start the gun to produce a spray pattern sample (see 5.2
Starting/Stopping
Requirements
).
2. Inspect the sample and readjust the settings of the gun if necessary.
5.4
Adjusting the Spray Pattern
Adjustment of the Material Flow Rate
The material flow rate can be adjusted by using the regulating screw (pos. 23).
Screwing in the regulating screw reduces the material rate; screwing the regulating
screw out increases the material rate.
Adjustment of the Material Pressure
This adjustment can only be made at the pump or the pressurized tank. Observe the
Operating Instructions and Safety Warnings issued by the manufacturer.
Adjustment of the Atomizing Air Pressure
The atomizing air pressure is to be adjusted at the air pressure reducing valve of the
compressor system. Observe the Operating Instructions and Safety Warnings issued
by the manufacturer.
