Care, Maintenance And Disposal; Safety; General; At Every Start-Up - Fronius TTW 4500 Manual

Care, maintenance and disposal

Safety

Danger from electric current.
An electric shock can be fatal.
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General

Regular preventive maintenance of the welding torch is essential for problem-free opera-
tion. The welding torch is subjected to high temperatures. It therefore requires more fre-
quent maintenance than other components in the welding system.

At every start-up

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Monthly

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Disposal

Dispose of in accordance with the applicable national and local regulations.
10
WARNING!
Before carrying out any work on the welding torch:
Turn the power source mains switch to the "O" position
Unplug the power source from the mains
Put up an easy-to-understand warning sign to stop anybody inadvertently switching
it back on again
Check welding torch, hosepack and power connections for signs of damage
Check gas and water connections for leaks
Check that the cooling unit is working properly, monitor the water return level in the
coolant container, vent the cooling unit if necessary
Check that the wearing parts are in perfect condition, clean wearing parts before fit-
ting them
If applicable, check the filter in the cooling circuit for contamination
Check that coolant is pure; if there are any impurities, replace the coolant and rinse
the welding torch thoroughly several times by letting coolant flow into it and back out
again
Dismantle the welding torch and check for deposits/contamination