26
27
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 requirements.
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 Lackiersysteme
must be consulted.
Grounding / Equipotential Bonding
You must ensure that the spray gun is properly earthed (grounded) either separately
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.
Improper use is for example:
•
spraying of material onto persons and animals
•
spraying of liquid nitrogen, etc.
2
Technical Description
The model PILOT WA 51 is operated automatically by compressed air and is
controlled via 3/2-way control valves. Hand-operated, foot-operated or solenoid-val-
ve-operated valves can be used for this purpose.
First, the atomising air is introduced by a 3/2-way valve.
Then, the 3/2-way control valve required for the control air is actuated. The
compressed air flowing into the cylinder chamber moves the control piston and
opens the material feed.
If the control air is interrupted by the 3/2-way valve, the compressed air in the
cylinder chamber is allowed to escape. The spring pressure of the piston spring
shuts off the material feed to the material nozzle.
After this, the atomising air is switched off by the 3/2-way valve.
3
Safety instructions
3.1
Identification of safety instructions
Warning
The pictogram and the urgency level “
Warning
“ identify a possible danger to
persons.
Possible consequences: Slight to severe injuries.
Attention
The pictogram and the urgency level “
Attention
“ identify a possible danger to
material assets.
Possible consequences: Damage to material assets.
Note
The pictogram and the urgency level “
Note
“ identify additional information for the safe
and efficient operation of the spray gun.
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.
• Measures must be taken to ensure that the spray gun is sufficiently grounded
(earthed) by means of a conductive air hose (maximum 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 de-pressurised. 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
breathing masks and protective overalls when using the gun. Airborne particles
represent 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. 83 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,
please contact WALTHER Spritz- und Lackiersysteme GmbH, D-42327 Wuppertal,
Germany.
4 Assembly
The spray gun is delivered fully assembled. Before using it, the following steps should
be carried out:
