6 MAINTENANCE
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© ESAB AB 2017
6 MAINTENANCE
6.1 Overview
NOTE!
Regular maintenance is important for safe and reliable operation.
Welding torch
Cleaning and replacement of the welding torch’s wear parts should take place at regular
intervals in order to achieve trouble−free wire feed. Blow the wire guide clean regularly and
clean the contact tip.
WARNING!
Before carrying out cleaning, servicing and repair work, the following shutdown
procedure must be followed.
1. Switch off the power supply.
2. Close off the gas supply.
Make sure that the power supply and gas remain turned off all the time while
servicing the equipment.
6.2 Cable assembly
Check that all the nuts are tight.
Replace the liner if it is worn or dirty.
Replace damaged, deformed or worn parts.
6.3 Cleaning the wire feed
Disconnect the torch cable assembly from the equipment and lay it out straight.
Unscrew the nut and pull out the wire guide liner. Remove other parts from the swan neck.
Blow compressed air through the wire conduit from both ends in order to remove wire
shavings.
Insert the liner into the wire conduit and screw the nut back on.
NOTE!
New liners must be cut to the correct length. Follow the following tips and
suggestions:
6.4 Spiral liner / PTFE liner
1. Unscrew all the fittings from the swan neck.
2. Unscrew the union nut on the central plug.
3. Remove the old liner, and then push the guide spiral liner through the hose as far as it
will go.
Make sure the cable is stretched out more or less straight.
4. Tighten the union nut by hand.
5. Cut the overhang off the spiral at the swan neck and remove the guide spiral liner
again.
6. For a smooth transition to the contact tip, grind the end of the spiral to an angle of
approx. 40°. Deburr the cutting edge.
7. Push the sharpened guide spiral liner through the hose to the holder nipple.
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