Service, Maintenance And Disposal; General; Detection Of Defective Wearing Parts - Fronius MTG 400i K4 Instructions De Service

Service, maintenance and disposal

General

Regular and preventive maintenance of the welding torch are important factors in achiev-
ing problem-free operation. The welding torch is subjected to high temperatures and high
levels of soiling. This is why the welding torch needs more frequent maintenance than oth-
er components of the welding system.
Detection of de-
1.
fective wearing
parts
1.
2.
3.
4.
5.
40
2.
Insulating parts
– Burned outer edges, indentations
Nozzle fittings
– Burned outer edges, indentations
– Heavily marked with welding spatter
Spatter guard
– Burned outer edges, indentations
Contact tips
– Ground (oval) drill holes for wire entry and wire exit
– Heavily marked with welding spatter
– Penetration on the peak of contact tip
Gas nozzles
– Heavily marked with welding spatter
– Burned outer edges
– Indentations
NOTE!
Risk due to improper handling of the
welding torch.
Serious damage may result.
► Do not hit the welding torch on hard ob-
jects.
► Avoid scoring and scratches in the con-
tact tip, in which the welding spatter
could permanently solidify.
Do not bend the torch body under any cir-
cumstances!
3. 4. 5.