Welding Torch Connection - EWM miniDrive GS Operating Instructions Manual

Design and function

Welding torch connection

5.3 Welding torch 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 5.1.4.2 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 plastic or teflon liner when welding or brazing 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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099-005262-EW501
22.11.2016