Design and function
MIG/MAG welding
30
099-004846-EW501
8.01.2014
5.7
MIG/MAG welding
5.7.1
Welding torch connection
CAUTION
Equipment damage due to improperly connected coolant lines!
If the coolant lines are not connected or a gas-cooled welding torch is used, the coolant
circuit is interrupted and equipment damage can occur.
• Connect all coolant lines correctly!
• When using a gas-cooled welding torch, add a tube bridge to the coolant circuit (see
chapter “Accessories”).
NOTE
Fault with the wire guide!
On delivery, the central connector is fitted with a capillary tube for welding torches with
spiral guides. Conversion is necessary if a welding torch with a plastic core is used!
Welding torch with plastic core:
• use with guide tube!
Welding torch with spiral guide:
• use with capillary tube!
Depending on the wire electrode diameter or type, either a spiral guide or plastic core with the
correct inner diameter has to be inserted in the torch!
Recommendation:
• Use a spiral guide to weld hard, unalloyed wire electrodes (steel).
• Use a plastic core to weld or braze soft, high-alloy wire electrodes or aluminium materials.
Preparation for connecting welding torches with a plastic core:
• Push forward the capillary tube on the wire feed side in the direction of the central connector and
remove it there.
• Slide plastic core guide tube off the central connector.
• Carefully insert the central plug for the welding torch, with the still oversized plastic liner, into the
central connector and screw together with crown nut.
• Use a suitable tool to cut off the plastic liner just before the wire feed roller, making sure not to pinch it.
• Unfasten and remove the central plug on the welding torch.
• Cleanly remove the burr from the separated end of the plastic core!
Preparation for connecting welding torches with a spiral guide:
• Check that the capillary tube is correctly positioned in relation to the central connector!
Summary of Contents for Phoenix Expert drive 4L M3.70
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