© ESAB AB 2012
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bu21e
MIG/MAG and self shielded cored wire welding
An arc melts a continuously supplied wire. The weld pool is protected by shielding
gas.
For MIG/MAG and self shielded core wire welding, the power source shall be supple
mented with:
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wire feed unit
S
welding gun
S
connection cable between power source and wire feed unit
S
gas cylinder
S
return cable
6
MAINTENANCE
Regular maintenance is important for safe, reliable operation.
Only personnel with the appropriate electrical skills (authorized staff) may remove
safety plates.
CAUTION
All guarantee undertakings from the supplier cease to apply if the customer attempts any
work to rectify any faults in the product during the guarantee period.
6.1
Power source
Check regularly that the welding power source is not clogged with dirt.
How often and which cleaning methods apply depend on:
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the welding process
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the arc times
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the placement
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the surrounding environment
It is normally sufficient to blow down the power source with dry compressed air
(reduced pressure) once a year.
6.2
Welding gun and torch
A regular programme of care and maintenance reduces unnecessary and expensive
downtime.
Each time a wire bobbin is changed, the welding gun should be removed from the
power source and blown clean with compressed air.
The wire end must not have sharp edges when inserted into the wire liner.
For detailed information see instruction manuals for welding guns and torches.
GB
