28
29
The relevant supervisory authority or the operator of the equipment are
responsible for determining the explosion hazard (zone classification).
The operator must check and ensure that all technical data and the marking of the
equipment in accordance with ATEX are compliant with the necessary require-
ments.
The operator must provide corresponding safety measures for all applications in
which the breakdown of the equipment might lead to danger to persons.
If any irregularities are observed while the equipment is in operation, the equipment
must be put out of operation immediately and WALTHER Spritz- und Lackier-
systeme must be consulted.
Grounding / Equipotential Bonding
You must ensure that the spray gun is properly earthed (grounded) either separate-
ly or in connection with the equipment with which it is being used
(maximum resistance 10
6
Ω
).
1.3
Improper Use
This spray gun shall not be used for purposes other than set forth in the above
Chapter
Normal Use
. Any other form of use and/or application is prohibited and
considered as improper use in contrast to the original engineering design concept.
The term improper use also includes such operations as may be:
•
spraying of material onto persons and animals
•
spraying of liquid nitrogen, etc.
2
Technical Description
Spray guns of the WALTHER PILOT Type Series WA XV are allautomatic air-con-
trolled guns operating in combination with a 3/2-way control valve in the form of
hand-, foot- or solenoid-actuated valves.
Actuation of the 3/2-way valve directs control air into the cylinder inside the gun so
as to open - in sequence - the atomizing air and the material input.
Closing of the 3/2-way valve is followed by the control air escaping from the cylin-
der inside the gun, upon which the spring-loaded material control needle returns to
its initial position, where it shuts the material and atomizing air Input off.
The material flow rate and the spray jet contour (i.e. flat, wide or round) are adju-
sted at the gun by way of regulating screws.
The material inlet duct of the WA XV needle-pull can be opened by hand so as to
permit, for example, cleaning of a clogged material nozzle.
The model PILOT WA XV-HVLP is a low pressure spray gun and operate with a
spraying pressure of 0.7 bar using an inlet pressure of 3.5 bar.
The gun front attachment with twin connector for material input permits inclusion of
the PILOT spray gun in a circulation system the closed loop layout of which is desi-
gned to operate several spray guns.
This spray gun can be connected to material pressure tanks, pumping and circula-
tion systems.
3
Safety Instructions
3.1
Safety Warning Symbols
Warning
This pictograph and the accompanying warning note "
Warning
" indicates possible
risks and dangers for yourself and others, likely to result in injuries of any descripti-
on.
Caution
This pictograph and the accompanying warning note "
Caution
"-indicates possible
damage to equipment, workpieces, etc.
Notice
This pictograph and the accompanying note "
Notice
"indicates additional and useful
information to help you handling the spray gun with even greater confidence and
efficiency.
3.2
General Safety Instructions
•
All applicable accident prevention rules and regulations as well as other recognised
industrial safety and health rules and regulations must be observed at all times.
•
Use the spray gun only in well-ventilated rooms. Fire, naked flames and smoking
are strictly prohibited within the working area. WARNING – during the spraying of
flammable materials (e.g. lacquers, adhesives, cleaning agents, etc.), there is an
increased risk to health as well as an increased risk of explosion and fire.
•
You must ensure that the spray gun is properly earthed (grounded) either separate-
ly or in connection with the equipment with which it is being used (max. resistance
10
6
Ω
).
•
Before carrying out maintenance or servicing work, always ensure that the air and
material feed to the spray gun have been depressurised. Risk of injury!
•
When spraying materials, do not place your hands or other parts of the body in
front of the pressurised nozzle or the spray gun. Risk of injury!
•
Never point the spray gun at persons or animals. Risk of injury!
•
Always observe the spraying and safety instructions given by the manufacturers of
the spraying material and the cleaning agent. Aggressive and corrosive materials in
particular can be harmful to health.
•
Exhaust air containing particles (overspray) must be kept away from the working
area and personnel. In spite of these measures, always wear the regulation brea-
thing masks and protective overalls when using the gun. Airborne particles repre-
sent a serious health hazard!
•
Always wear hearing protection when using the gun or when in the vicinity of a gun
that is in use. The noise level generated by the spray gun is approx. 86 dB (A).
•
After carrying out assembly or maintenance work, always ensure that all nuts, bolts
and screw connections have been fully tightened before the gun is used.
•
Use only original replacement parts, since WALTHER can only guarantee safe and
fault-free operation for original parts.
For further information on the safe use of the spray gun and the spraying materials, ple-
ase contact WALTHER Spritz- und Lackiersysteme GmbH, D-42327 Wuppertal,
Germany.
