Design and function
General
20
099-004839-BOC01
10.11.2009
5 Design and function
NOTE
Observe documentation of other system components when connecting!
5.1 General
DANGER
Risk of injury from electric shock!
Contact with live parts, e.g. welding current sockets, is potentially fatal!
• Follow safety instructions on the opening pages of the operating instructions.
• Commissioning may only be carried out by persons who have the relevant expertise of
working with arc welding machines!
• Connection and welding leads (e.g. electrode holder, welding torch, workpiece lead,
interfaces) may only be connected when the machine is switched off!
CAUTION
Risk of burns on the welding current connection!
If the welding current connections are not locked, connections and leads heat up and can
cause burns, if touched!
• Check the welding current connections every day and lock by turning in clockwise direction, if
necessary.
Risk of injury due to moving parts!
The wire feed units are equipped with moving parts, which can trap hands, hair, clothing
or tools and thus injure persons!
• Do not reach into rotating or moving parts or drive components!
• Keep casing covers closed during operation!
Risk of injury due to welding wire escaping in an unpredictable manner!
Welding wire can be conveyed at very high speeds and, if conveyed incorrectly, may
escape in an uncontrolled manner and injure persons!
• Before mains connection, set up the complete wire guide system from the wire spool to the
welding torch!
• Remove the counter pressure rollers from the wire feed unit if no welding torch is fitted!
• Check wire guide at regular intervals!
• Keep all casing covers closed during operation!
Risk from electrical current!
If welding is carried out alternately using different methods and if a welding torch and an
electrode holder remain connected to the machine, the open-circuit/welding voltage is
applied simultaneously on all cables.
• The torch and the electrode holder should therefore always be placed on an insulated
surface before starting work and during breaks.
CAUTION
Using protective dust caps!
Protective dust caps protect the connection sockets and therefore the machine against
dirt and damage.
• The protective dust cap must be fitted if there is no accessory component being operated on
that connection.
• The cap must be replaced if faulty or if lost!
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