taining oil, grease or solvent or packaging materials, even at several metres’ distance.
• In case of doubt, check with the security officer in charge and obtain his release for the welding project be-
fore starting work!
• Make sure that the operating site has sufficient ventilation!
• Do not weld without air extraction on any workpiece which may release substances dangerous to
health, such as coating materials, zinc, nickel, chromium or cadmium!
• Do not weld on hollow objects which contain, or have contained, flammable liquids or gases, or which are
under pressure, or inside which a dangerous level of pressure can be generated by the welding heat! In
some cases, the heat generated by welding may also cause the release of gases or vapours which are
dangerous to health or even explosive. Specialized knowledge is required for this kind of work. Do not
carry out such operations unless you possess the necessary knowledge!
• Keep at a safe distance from any objects which might be affected by magnetic fields, such as EDP
installa-tions (computers), cards with magnetic strips or timepieces (wrist-watches).
• Do not weld on the same workpiece (welding potential) simultaneously with other types of welding ma-
chines, especially those operating with different poles or frequency (alternating current), or welding
systems with high-voltage ignition, since this could adversely affect or damage the control system of the
stud welding appliance.
• Ensure that a flawless, safe welding circuit is generated. The earthing cables must be firmly clamped onto
the workpiece. If this is not possible or not desirable, make sure that there are no parts in contact with the
welding circuit which can be damaged or destroyed by the welding current, such as crane hooks, anti-
friction bearings, and clamps with layers of partly insulating material, screws or bolts. Especially
dangerous is the destruction of protective conductors in other electric appliances if they come into contact
with the welding circuit.
• The noise generated by welding can be in excess of 85 dB (A). Therefore the operator and auxiliary per-
sonnel must wear ear protectors, and the welding site may have to be classed as a noise pollution
danger area.
• Whenever the appliance must be placed on sloping ground, secure it against tipping over or rolling downhill.
• When transporting the appliance, use the handles provided. However, these handles are not designed
for lifting the appliance by crane.
Issue 4/2019 ver. 2.0 page 7 of 42
Köster & Co. GmbH • D-58256 Ennepetal • Spreeler Weg 32 • Tel. +49 2333 8306-0 • Fax +49 2333 8306-38
Internet: http://www.koeco.net • E-Mail: koeco@koeco.net
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