Requirement For The Shielding Gas; Danger From Shielding Gas Cylinders - Fronius TimeTwin Digital Operating Instructions Manual

Risk of scalding from escaping coolant. Switch off cooling unit before disconnec-
ting 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.
-
-
-
If the wirefeeder is attached to a crane holder during welding, always use a suita-
ble, insulated wirefeeder hoisting attachment (MIG/MAG and TIG devices).
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, counterba-
lanced 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, corrosi-
on 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:
-
-
-
Use filters if necessary.
Danger from
Shielding gas cylinders contain gas under pressure and can explode if damaged.
shielding gas cy- As the shielding gas cylinders are part of the welding equipment, they must be
linders handled with the greatest of care.
Protect shielding gas cylinders containing compressed gas from excessive heat,
mechanical impact, slag, naked flames, sparks and arcs.
Mount the shielding gas cylinders vertically and secure according to instructions
to prevent them falling over.
Keep the shielding gas cylinders well away from any welding or other electrical
circuits.
Never hang a welding torch on a shielding gas cylinder.
Never touch a shielding gas cylinder with an electrode.
Risk of explosion - never attempt to weld a pressurised shielding gas cylinder.
62
Hook chains or ropes onto all suspension points provided on the load-carry-
ing equipment.
Chains and 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