Kemppi FitWeld 300 Operating Manual

Also see for FitWeld 300: Service manual

Contents

Kemppi FitWeld 300 Operating Manual Manual pdf 13 page image

EN2.6.3 Selecting the gun operating modeWith the three position switch (1) you can set the MIG welding gun to two-sequence (2T) orfour-sequence (4T) mode with GasGuard feature on.If you are using self-shielded flux-cored filler wire (gasless wire), you must select the upmostswitch position. This position provides 2T operation with GasGuard feature disabled, allowingwelding without shielding gas.To use the welding gun in 2T operating mode:1. Press the gun trigger down to start welding.2. Release the gun trigger to stop welding.To use the welding gun in 4T operating mode:1. Press the gun trigger down to start the flow of the shielding gas.2. Release the trigger to start welding.3. Press the trigger down again to stop the arc. The shielding gas continues to flow.4. Release the switch again to stop the flow of the shielding gas.2.6.4 Adjusting the shielding gas flowUsing a rotameter as shown in the picture, you can adjust the gas flow rate to the gun byturning the shielding gas adjustment regulation valve screw inside the FitWeld 300 wirecabinet.By turning the screw anticlockwise you increase the gas flow to the gun nozzle. Clockwiseadjustment will reduce the gas flow rate.MMT32l/min5102015NOTE! The shielding gas flow rate set from the gas cylinder regulator must exceed the flow ratemeasured at the welding gun. If these rates are the same, the gas indication light will shine on thecontrol panel and welding is prevented.11© Kemppi Oy / 1202