MMT 25, 27, 32, 35, 42 30W, 42W, 52W
Contents
1. KEMPPI The Joy of Welding MMT 25 2 32 35 42 30W 42W 52W Operating manual English K ytt ohje Suomi Bruksanvisning Svenska Bruksanvisning Norsk Brugsanvisning Dansk Gebrauchsanweisung Deutsch Gebruiksaanwijzing Nederlands Manuel d utilisation Fran ais SV NO DA DE NL FR RU OPERATING MANUAL English MMT Kemppi Oy 1130 EN MMT Kemppi Oy 1130 EN CONTENTS 1 PREFACE urnes 1 1 0 0 000020 1 2 Product Introduction 1 3 Operation Safety ins 2 CONNECTING THE GUN 3 USE AND MAINTENANCE 4 OPERATION DISTURBANCES 5 ORDERING NUMBERS 7 6 TECHNICAL DATA 1 1 1 2 PREFACE GENERAL Congratulations on having purchased this product Used correctly Kemppi products can significantly increase the productivity of your welding and provide years of economical service This operating manual contains important information on the use maintenance and safety of your Kemppi product The technical specifications of the equipment can be found at the end of the manual Please read the manual carefully before using the equipment for the first time For your own safety and that of your working environment pay particular attention to the safety instructions in the manual For more information on Kemppi products contact Kemppi Oy consu2. There is too much draught at welding place 5 ORDERING NUMBERS Gun Length 3 0m Length 4 5 m MMT 25 6252513MMT 6252514MMT MMT 27 6252713MMT 6252714MMT MMT 32 6253213MMT 6253214MMT 35 6253513 6253514 42 6254213 6254214 MMT 30W 6253043MMT 6253044MMT MMT 42W 6254203MMT 6254204MMT 52W 6255203MMT 6255204MMT MMT Kemppi Oy 1130 EN MMT Kemppi Oy 1130 EN 6 TECHNICAL DATA Gun 25 27 Loading capacity Ar CO A 250 270 Duty cycle 35 35 Wire diameters mm Type of cooling Gun Loading capacity Ar CO A Duty cycle Wire diameters mm Type of cooling Cooling data Max temp in inlet C Min flow rate l min Min pressure bar Max pressure bar 0 6 1 2 06 12 Air Air MMT 30W 300 100 0 8 1 6 Liquid 50 Connection to MIG unit Euro adapter MMT 32 320 35 0 8 1 6 Air MMT 42W 400 100 0 8 1 6 Liquid 50 MMT 35 350 35 0 8 1 6 Air MMT 42 420 35 0 8 1 6 Air 52W 500 100 0 8 1 6 Liguid 50 NOTE Make sure that the gun in your use is designed for the max welding current needed The guns meet construction and safety reguirements according to norm IEC EN 60974 7 OEL L AO ddwy LWW EN KEMPPI OY Hennalankatu 39 PL13 FIN 15801 LAHTI FINLAND Tel 358 3 899 11 Telefax 358 3 899 428 export kemppi com www kem
3. ations Remove flammable or explosive materials from welding place Always reserve sufficient fire fighting equipment on welding place Be prepared for hazards in special welding jobs eg for the danger of fire or explosion when welding container type work pieces NOTE Fire can break out from sparks even several hours after the welding work has been finished Mains voltage Never take welding machine inside a work piece eg container or truck Do not place welding machine on a wet surface Always check cables before operating the machine Change defect cables without delay Defect cables may cause an injury or set out a fire Connection cable must not be compressed it must not touch sharp edges or hot work pieces Welding power circuit Isolate yourself by using proper protective clothing do not wear wet clothing Never work on a wet surface or use defect cables Do not put MIG gun or welding cables on welding machine or on other electric equipment Do not press MIG gun switch if the gun is not directed towards a work piece Welding fumes Take care that there is sufficient ventilation during welding Take special safety precautions when welding metals which contain lead cadmium zinc mercury or beryllium CONNECTING THE GUN The gun is equipped with spiral liner for welding normal steel wire Before connecting the gun make sure that its wire liner is according to recommendations for the welding wire in question see consumable
4. ding 6 127018 MOSCOW RUSSIA Tel 7 495 739 4304 Telefax 7 495 739 4305 info ru kemppi com 000 1 6 127018 Tel 7 495 739 4304 Telefax 7 495 739 4305 info ru kemppi com KEMPPI TRADING BEIJING COMPANY LIMITED Room 420 3 Zone Building B No 12 Hongda North Street Beijing Economic Development Zone 100176 Beijing CHINA Tel 86 10 6787 6064 86 10 6787 1282 Telefax 86 10 6787 5259 sales cn kemppi com BAZA BRA A RK BIA 16125 X 420E 100176 86 10 6787 6064 86 10 6787 1282 86 10 6787 5259 sales cn kemppi com KEMPPI INDIA PVT LTD LAKSHMI TOWERS New No 2 770 First Main Road KAZURA Gardens Neelangarai CHENNAI 600 041 TAMIL NADU Tel 91 44 4567 1200 Telefax 91 44 4567 1234 sales india kemppi com 0
5. ed regularly Welding end Remove welding spatter and check condition of insulations contact tip and gas nozzle Replace damaged and worn out parts Use only original Kemppi spare parts Check condition of insulations Replace damaged insulations immediately Check that in the discharge holes for shielding gas there is no spatter dirt MMT Kemppi Oy 1130 EN MMT Kemppi Oy 1130 EN Use the gun in a proper way Do not remove welding spatter by hammering the gun against the work piece Do not use sharp tools because damaging of surfaces will increase stickening of spatter Do not bend neck body of gun or fasten the gun from neck body against bench etc for it may cause destruction of the neck Do not use the gun as hammer Gun cable Clean wire liner when replacing wire reel or more often Check daily that insulations of handle and gun cable are undamaged Check that there are no sharp bends in gun cable OPERATION DISTURBANCES Welding wire does not run smoothly or wire is sticking in the wire liner arc length varies you can feel shaking in the handle Wire liner is dirty or blocked up Clean with compressed air Replace wire liner if necessary Wrong wire liner or contact tip Make sure that wire liner and contact tip are according to recommendations for the welding wire in question see consumable parts sheet delivered with the gun Contact tip has heatened up too much Check coo
6. ling liquid circulation Contact face of contact tip is damaged due to spatter or sparking caused by impurities Replace contact tip Gun cable has too sharp bends straighten Welding wire has a lot of dirt rust or bends etc which increases friction and results in contact disturbances Check operation of the wire feed unit Check that drive roll size and type are suitable for wire in question Check that drive roll pressure is not too low or too high Gas as 19 01001 is bad weld pool is boiling arc is unstable On inner face of gas nozzle or in contact tip and contact tip holder there is too much welding spatter clean In discharge hole for shielding gas there is spatter or other dirt clean There are impurities in shielding gas moisture air There are impurities in base material rust base coat grease Pressure gathered in long gas hoses will cause a great flow of shielding gas at welding start which may cause turbulence or mixing of air into shielding gas The reason may also be a faulty or a faulty regulated relief valve which lets too much pressure into gas hoses Flow of shielding gas is too small or too big causes turbulence Use in short arc range a flow of 8 15 l min in hot arc range 10 20 l min Distance of gun to work piece is too long In short arc welding keep the gas nozzle at a distance of 10 15 mm and hot arc welding at a distance of 15 30 mm to work piece Angle of tilt of gun is too big
7. lt an authorised Kemppi dealer or visit the Kemppi web site at www kemppi com The specifications presented in this manual are subject to change without prior notice Important notes Items in the manual that require particular attention in order to minimise damage and personal harm are indicated with the NOTE notation Read these sections carefully and follow their instructions Disclaimer While every effort has been made to ensure that the information contained in this guide is accurate and complete no liability can be accepted for any errors or omissions Kemppi reserves the right to change the specification of the product described at any time without prior notice Do not copy record reproduce or transmit the contents of this guide without prior permission from Kemppi PRODUCT INTRODUCTION Kemppi MMT MIG MAG guns for manual welding are designed for demanding professional use They are suitable to be used in all MIG units equipped with Euro adapter MMT Kemppi Oy 1130 EN MMT Kemppi Oy 1130 EN 1 3 OPERATION SAFETY Please study these Operation safety instructions and respect them when installing operating and servicing the machine Welding arc and spatters Welding arc hurts unprotected eyes Be careful also with reflecting arc flash Welding arc and spatter burn unprotected skin Use safety gloves and protective clothing Danger for fire or explosion Pay attention to fire safety regul
8. parts sheet delivered with the gun Set the snap connector carefully at its place so that the control connectors will not get damaged Tighten the snap connector carefully in order to avoid voltage losses Loose connection will heat the gun and the feeder unit Control tightness of connection daily Connect liquid hoses of gun and interconnecting cable according to operation instruction of the wire feeder Fix liquid hoses in such a way that those having red code always are connected to corresponding red counter connectors and the blue ones respectively to blue counter connectors When connecting liquid and gas hoses check that there are no dirt metal powder or other wastes e Before driving the wire into gun check that the wire end is straight at a length of approx 200 mm and the tip blunt file if necessary A sharp wire tip may damage wire liner and contact tip of gun Watch out for wire sticking out from welding end of gun Do not direct the gun towards people or work piece instead make sure that the wire comes freely out in the air USE AND MAINTENANCE The amount of use and working environment should be taken into consideration when planning the frequency of maintenance of MIG guns Careful use and preventive maintenance will help to ensure trouble free operation and long lifetime for the gun Due to high temperatures and wear the welding end of MIG gun requires most maintenance but also condition of other parts should be check
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