Mig/Mag Welding; Welding Torch And Workpiece Line Connection - EWM Taurus 351 Basic FKG Operating Instructions Manual

Design and function

MIG/MAG welding

5.3 MIG/MAG welding
5.3.1

Welding torch and workpiece line connection

Equipment damage due to improperly connected coolant pipes!
If the coolant pipes are not properly connected or a gas-cooled welding torch is used, the coolant
circuit is interrupted and equipment damage can occur.
•
Connect all coolant pipes correctly!
•
Completely unroll the hose package and the torch hose package!
•
Observe maximal hose package length > see 5.1.5.2 chapter.
•
When using a gas-cooled welding torch, use a hose bridge to establish the coolant
circuit > see 9 chapter.
On delivery, the Euro torch connector is fitted with a capillary tube for welding torches with a
steel liner. Conversion is necessary if a welding torch with a liner is used!
•
Operate welding torches with a liner > with a guide tube.
•
Operate welding torches with a steel liner > with a capillary tube.
Depending on the wire electrode diameter or type, either a steel liner or liner with the correct inner
diameter must be inserted in the torch!
Recommendation:
•
Use a steel liner when welding hard, unalloyed wire electrodes (steel).
•
Use a chrome nickel liner when welding hard, high-alloy wire electrodes (CrNi).
•
Use a liner to weld or braze soft wire electrodes, high-alloy wire electrodes or aluminium materials.
Preparation for connecting welding torches with a liner:
•
Push forward the capillary tube on the wire feed side in the direction of the Euro torch connector and
remove it there.
•
Insert the liner guide tube from the Euro torch connector side.
•
Carefully insert the welding torch connector with as yet too long a liner into the Euro torch connector
and secure with a crown nut.
•
Cut off the liner with a liner cutter > see 9 chapter just before the wire feed roller.
•
Loosen the welding torch connector and remove.
•
Carefully chamfer the cut off end of the liner with a liner sharpener > see 9 chapter and sharpen.
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14.07.2016