GYS KRONOS 400T DUO Mode D'emploi page 27

User manual
LIQUID COOLING (400T-W)
FILLING
MAX
The cooling unit tank must be filled to the MAX level indicated by the gauge on the front, and must never be allowed to fall below the
MIN level. A warning message will be triggered if this occurs.
It is essential to use a specific coolant for welding machines that has low electrical conductivity as well as being anti-corrosion and
anti-freeze (ref. 052246).
The use of other coolants, in particular the standard automotive coolants, can lead to the accumulation of solid deposits in the cooling
system through electrolysis, thus degrading the cooling system and even clogging it entirely.
This recommended MAX level is essential for optimum performance of the liquid-cooled torch.
MIN Any damage to the machine caused by the use of a coolant other than the recommended variety will not be covered under the warranty..
USAGE
NEVER USE the machine's power source WITHOUT COOLING LIQUID while the pump is running.
1.
Meet the minimum coolant level. Failure to do so may result in permanent damage to the cooling system pump.
Ensure that the cooling unit is switched off before disconnecting the torch's fluid inlet and/or outlet pipes. Coolant is harmful and irritates the
2.
eyes, mucous membranes and skin. Hot liquid can cause burns.
Danger of burns from hot liquid. Never drain the cooling unit after use. The liquid inside the machine is boiling hot, wait for it to cool before
3.
draining.
In «AUTO» mode, the cooler pump starts running when welding is started. When welding stops, the pump continues to run for a further 10
4. minutes. During this time, the liquid cools the welding torch bringing it back to room temperature. Leave the power source plugged in for a
few minutes after welding to allow it to cool.
In the MIG-MAG process, the cooling system is activated by default (AUTO). To use an air-cooled MIG-MAG torch, it is necessary to switch the cooling
system off. Please refer to the interface manual to do this.
SEMI-AUTOMATIC STEEL/STAINLESS STEEL WELDING (MAG MODE)
This machine can weld steel and stainless steel wire from Ø 0.6 to 1.2mm (I-A). The unit is supplied with Ø 1.0/1.2 rollers for steel or stainless steel
as standard. The contact tip, the grooved roller, and the torch sheath are designed for this application.
For operation on steel, a specific welding gas (Ar+CO2) is required. The amount of CO2 may vary depending on the type of gas used. For stainless
steel, use a 2% CO2 mixture. When welding with pure CO2, it is necessary to connect a gas pre-heater to the gas cylinder. For specific gas issues,
please contact your gas distributor. The gas flow rate for steel is between 8 and 15 litres per minute depending on the surroundings. To check the
gas flow rate on the manometer without unwinding the welding wire, press and hold push-button n°1 and follow the procedure on the screen. This
check should be done periodically to ensure the best possible welding. Refer to the HMI manual.
SEMI-AUTOMATIC ALUMINIUM WELDING (MIG MODE)
The unit can weld aluminium wire from Ø 0.8 to 1.2mm (I-B).
For use with aluminium, pure argon gas (Ar) is required. Seek advice from a gas distributor for a wide selection of gases. The gas flow rate for
aluminium is between 15 and 20 l/min depending on the surrounding environment and the welder's experience.
The differences between steel and aluminium processing are as follows:
- Use specific rollers for aluminium welding.
- Put minimum pressure on the motorised reel's pressure rollers so as not to crush the thread.
- Only use the capillary tube (for guiding the wire between the feed rollers and the EURO connector) for steel/stainless steel welding (I-B)
- Use a special aluminium torch. This aluminium torch has a Teflon coating to reduce friction. DO NOT cut away the coating at the tip of the connector!
This coating is used to guide the wire from the rollers.
- Contact tips: use a SPECIAL aluminium contact tip that matches the wire's diameter.
When using red or blue sheathing (for aluminium welding), it is recommended to use the accessory 90950 (I-C). This
stainless steel sheath guide improves the centering of the sheath and facilitates the flow of the wire.
SEMI-AUTOMATIC WELDING IN CUSI AND CUAL (BRAZING MODE)
The unit can weld Ø 0.8 and 1.0 mm CuSi and CuAl wire.
In the same way as with steel, a capillary tube must be set up and a torch with a steel sheath must be used. For brazing, pure argon (Ar) should be
used.
SEMI-AUTOMATIC WELDING WITH CORED WIRE
The unit can weld flux-cored wire from Ø 0.9 to 1.6mm. The original rollers must be replaced by specific cored wire rollers (available as an optional
extra). Welding flux-cored wire with a standard nozzle can lead to overheating and damage to the torch. Remove the original nozzle from your MIG-
MAG torch.
Translation of the original
instructions
KRONOS 400T DUO / 400T W
Video
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