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5 OPERATION
cooled torch, the air has to be removed from the cooling circulation by running the cooler for
a few minutes.
CAUTION!
Wrongly connected water hoses can cause overheating and damage of the torch neck
and water-power cable. Regularly check the coolant level and throughput on the
cooling unit. Insufficient cooling might cause overheating and damage of the torch
neck and water-power cable.
NOTE!
To achieve an optimal gas- and water flow, place the cable assemblies and the gas
and water hoses as straight as possible. Kinked hoses will cause overheating and can
damage the torch. Protect cables and supply hoses from damage.
5.5
Setting the level of shielding gas
Set the quantity of gas required on the gas regulator. The type and quantity of gas to be used
depend on the welding task to be performed.
5.6
Checklist
Check the cable assembly before connecting it to the wire feed unit to confirm the wire liner
is suitable for the wire diameter and type.
Check the front-end consumable parts on the swan neck, whether the correct contact tip etc.
is being used for the wire diameter and type.
5.7
Changing wire
When changing the wire, ensure that the end of the wire is deburred.
Insert the wire into the wire feeding unit in accordance with the operating instructions.
When inserting the wire, press the wire jog button on the wire feed unit.
5.8
Starting and stopping the welding process
The wire feeder and the welding process will be started by pulling the torch trigger.
Depending on the configuration of the welding machine, the welding process will be stopped
by either letting go of the trigger or by pulling the trigger a second time. Refer to the
instruction manual for the power source for more information.
DANGER!
The torch head might reach very high temperatures during operation, there is a risk of
severe burns. Let it cool down under observation, there is risk of fire. Do not place the
hot torch on or near heat-sensitive objects. For water cooled torches, the cooling
system should remain switched on for some minutes after the welding process has
been stopped.
When leaving the workplace, the system must be secured against
unintended operation, preferably by switching off the power source.
DOKP4M4070
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© ESAB AB 2020
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