Requirement For The Shielding Gas - Fronius VR 7000 Operating Instructions Manual

Slag can jump off cooling workpieces. The specified protective equipment must
therefore also be worn when reworking workpieces, and steps must be taken to
ensure that other people are also adequately protected.
Welding torches and other parts with a high operating temperature must be al-
lowed to cool down before handling.
Special provisions apply in areas at risk of fire or explosion
- observe relevant national and international regulations.
Welding machines for work in areas with increased electrical risk (e.g. near boil-
ers) must carry the 'Safety' sign. However, the welding machine must not be loc-
ated in such areas.
Risk of scalding from escaping coolant. Switch off cooling unit before discon-
necting coolant flow or return lines.
Observe the information on the coolant safety data sheet when handling coolant.
The coolant safety data sheet may be obtained from your service centre or down-
loaded from the manufacturer's website.
Use only suitable load-carrying equipment supplied by the manufacturer when
transporting devices by crane.
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If the wirefeeder is attached to a crane holder during welding, always use a suit-
able, insulated wirefeeder hoisting attachment (MIG/MAG and TIG devices).
Welding with the device during crane transport is only permitted if this is clearly
stated in the intended use of the device.
If the device has a carrying strap or handle, this is intended solely for carrying by
hand. The carrying strap is not to be used if transporting with a crane, counter-
balanced lift truck or other mechanical hoist.
All lifting tackle (straps, handles, chains, etc.) used in connection with the device
or its components must be tested regularly (e.g. for mechanical damage, corro-
sion or changes caused by other environmental factors).
The testing interval and scope of testing must comply with applicable national
standards and directives as a minimum.
Odourless and colourless shielding gas may escape unnoticed if an adapter is
used for the shielding gas connection. Prior to assembly, seal the device-side
thread of the adapter for the shielding gas connection using suitable Teflon tape.
Requirement for
Especially with ring lines, contaminated shielding gas can cause damage to
the shielding gas equipment and reduce welding quality.
Meet the following requirements regarding shielding gas quality:
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Use filters if necessary.
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Hook chains or ropes onto all suspension points provided on the suitable
load-carrying equipment.
Chains or ropes must be at the smallest angle possible to the vertical.
Remove gas cylinder and wirefeeder (MIG/MAG and TIG devices).
Solid particle size < 40 µm
Pressure condensation point < -20 °C
Max. oil content < 25 mg/m³