General; Identification Of Model Version; Normal Use; Improper Use - WALTHER PILOT PILOT WA 400 Instructions De Service

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General

1.1

Identification of Model Version

Models: Automatic Spray Gun
PILOT WA 400, WA 410, WA 420, WA 430, WA 470-K, WA 471-K,
WA 472-K, WA 473-K
Type series: WA 400 (Standard version)
WA 410 (Circulation version)
WA 420 (HVLP version)
WA 430 (HVLP and circulation version)
WA 470-K (Adhesive application version - standard)
WA 471-K (Adhesive application version - circulation)
WA 472-K (Adhesive application version - HVLP)
WA 473-K (Adh. appl. vers. - HVLP - circulation)
Manufacture: WALTHER Spritz- und Lackiersysteme GmbH
Kärntner Str. 18-30
D-42327 Wuppertal
Tel.: 00 49 202 / 787-0
Fax: 00 49 202 / 787-2217
www.walther-pilot.de • Email: info@walther-pilot.de
1.2

Normal Use

The automatic spray guns PILOT WA 400, WA 410, WA 420, WA 430, WA 470-K,
WA 471-K, WA 472-K and WA 473-K are exclusively designed for use with sprayab-
le material types and grades. All material conduction parts are made of stainless
steel so as to permit handling of hydrous and/ or agressive media such as:
• paints and lacquers
• greases, oils and corrosion preventives
• adhesive compounds
• ceramic glazes
• acidiferous media and
• pickling solutions
Should the materials which you want to spray not be listed above, please contact us
for further and detailed information.
Please note that sprayable material may only be applied to work pieces and/ or
similar items.
The temperature of the spraying materials shall never exceed 80 degrees Celsius.
The models PILOT WA 400 - WA 430 and the corresponding versions of adhesive
coating PILOT WA 470-K - WA 473-K are not designed for manual operation, and
must be installed in a suitable gun mounting device.
The term normal use also implies that any and all safety warnings, operational hand-
ling details, etc., as stated in these operating instructions, must be carefully read,
understood and duly complied with.
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20 541
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20 543
20 580
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20 583
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This equipment complies with the explosion protection requirements of Directive
2014/34/EU (ATEX) for the explosion group, equipment category and temperature
class indicated on the type plate. When using the equipment, the requirements
specified in these Operating Instructions must be observed at all times.
The technical data indicated on the equipment rating plates and the specifications in
the chapter "Technical Data" must be complied with at all times and must not be
exceeded. An overloading of the equipment must be ruled out.
The equipment may be used in potentially explosive atmospheres only with the
authorisation of the relevant supervisory authority.
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 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 Ω).
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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.
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Technical Description

The models PILOT WA 400 - WA 430 and WA 470-K - WA 473-K are automatic air-
controlled guns operating in combination with a 3/2-way control valve. Hand, foot or
solenoid-actuated valves can be used.
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 cylinder
inside the gun, upon which the spring-loaded material control needle returns to its
iinitial position, where it shuts the material and atomizing air input off.
The material flow rate and the spray jet contour (flat/wide/round) are adjusted at the
gun by way of regulating screws.
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