Care, Maintenance And Disposal; General; At Every Start-Up; Monthly - Fronius Robacta PTW 500 Bedienungsanleitung

Care, maintenance and disposal

General

Regular and preventive maintenance of the plasma torch is essential for problem-free
operation. The plasma torch is subjected to high temperatures. The plasma torch there-
fore requires more frequent maintenance than other components in a plasma 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.
WARNING! An electric shock can be fatal. Before carrying out any work on the
plasma torch:
- Switch the power source and plasma device mains switch to the „O"
position
- Disconnect power source and plasma device from the mains
- Put up an easy-to-understand warning sign to stop anybody inadvertently
switching it back on again
Check plasma torch, torch hosepack and current connections for signs of damage
Check gas and water connections for leaks
Check that the cooling unit used for cooling the plasma torch is functioning perfectly,
monitor the water return amount in the coolant container, and bleed the cooling unit
if necessary
Check that the wearing parts for the plasma torch are in perfect condition, and clean
wearing parts before fitting them
If applicable, check filter in the cooling circuit for contamination
Check that coolant is pure; if there are any impurities, replace the coolant and rinse
the plasma torch thoroughly several times by letting coolant flow into it and back out
again
NOTE! Deposits inside the plasma torch can cause high frequency arc-overs,
thereby damaging the plasma torch
Dismantle the plasma torch and check for deposits/contamination
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