Fronius MTG 400i K4 Instructions De Service page 41

Maintenance at
every start-up
For details on mounting the wearing parts, refer to the section
wearing parts
In addition to the steps listed above, prior to starting up water-cooled welding
torches always:
4
5
starting on page 42.
Ensure that all coolant connections are leak-tight
Ensure that there is a proper coolant return flow
Detach the extraction nozzle and
1
clean it to remove impurities
Remove welding spatter from the
2
gas nozzle and the components
underneath it
Check all wearing parts for dama-
3
ge and replace damaged compon-
ents
Installing the
41