Kemppi Minarc 110 Operation Instructions Manual

Contents

© COPYRIGHT KEMPPI OYMinarc/0244 – 73.3.2. DC TIG weldingSelect welding parameters based on filler manufacturer’s recommendations.1. Connect TIG torch to - pole and earth cable to + pole2. Select TIG welding with the switch .3. Select suitable welding current on adjusting potentiometer scales.3.4. WELDING SELECTIONSWelding fumes may be dangerous to your health, see that there is ampleventilation during welding!Never look at the arc without face shield made for arc welding! Protectyourself and your surroundings from the arc and hot spatter!3.4.1. EarthIf possible, always fix earth cable clamp directly on the welding piece.1. Clean connection surface of earth clamp from paint and rust.2. Connect the clamp carefully so, that contact surface is as large as possible.3. Finally check that the clamp sits tight3.4.2. WeldingSee also 3.1. Welding processes and 3.4. Welding selections. Note! It is advisable totest welding and rate of welding current first on something else than the actual weldingpiece.You can start welding after having made necessary selections. Arc is lit by scratchingthe welding piece with electrode. Length of arc is regulated by holding electrode tipa suitable distance from welding piece. Suitable arc length is usually about half thediameter of the electrode core wire. When arc is lit move the electrode slowly forwardstilting it to appr. 10-15° pulling angle. If necessary, adjust current value.Shielding gas is used in DC TIG welding. Your dealer will give you advice on choosinggas and equipment. Open the gas valve on the TTM 15V TIG torch. When gas starts toflow, arc is lit by lightly scratching welding piece with the tip of the tungsten electrode.When arc is lit, its length is regulated by holding the tip of the tungsten electrode ata suitable distance from the welding piece. Move the torch forwards from the startingpoint. Usually in appr. 10-15° pushing angle forwards. If necessary, regulate currentrate. Stop welding by lifting the torch off the welding piece and by closing the gasvalve on the torch.Note! Always fix the gas cylinder so that it stays steadily in upright position eitherin specially made wall rack or cylinder trolley. Always close the cylinder valve afterfinishing welding.3.5. STORINGStore the unit in a clean and dry place. Shield it from rain, and in temperaturesexceeding 25 °C shield it from direct exposure to sun.4. MAINTENANCEBe careful when handling electrical cables!In maintaining the unit take into consideration rate of use and the environment it is usedin. When the unit is used properly and regularly serviced, you will avoid unnecessarydisturbances in use and production.