Fronius MTG 400i K4 Instructions De Service page 39

Connecting the
1
welding torch to
the power source
and cooling unit
3
*
3
Connecting the
welding torch to
the extraction
system
3
only if the optional coolant connections are installed in the cooling unit
and only if the welding torch is water-cooled.
Always connect the coolant hoses in accordance with their color coding.
1
2
Correctly connect the suction hose
1
of the welding torch to the extrac-
tion unit
39