MIG Welder owners manual for R
Contents
1. Bes ole e are Mx amp HEA ule AVI ui dou uid slot gas Y e qoe e platy AU gdb Dax JMS dana ule Ye n e Keep flammable materials away e Mantenga el material combustible fuera del rea de trabajo Gardez l cart de tout mat riel inflammable Entfernen Sie brennbarres Material e Mantenha inflam veis bem guarda dos 9 24A U5001 TORE MMIC LTREUERA e 1 39 5 mibi SMI EM eda 282 HE Al nig sda Ga A AU UM ol gt ae e Wear eye ear and body protection Prot jase los ojos los o dos y el cuerpo Prot gez vos yeux vos oreilles et votre corps Tragen Sie Augen Ohren und K r perschutz Use prote o para a vista ouvido e corpo H FAUSHCRBRELTE Sb ORME HRS SSERERR ez 9 zo sare HSMN R di y die le Ally gadag cil gal ae e aua READ AND UNDERSTAND THE MANUFACTURER S INSTRUCTION FOR THIS EQUIPMENT AND THE CONSUMABLES TO BE USED AND FOLLOW YOUR EMPLOYER S SAFETY PRACTICES SE RECOMIENDA LEER Y ENTENDER LAS INSTRUCCIONES DEL FABRICANTE PARA EL USO DE ESTE EQUIPO Y LOS CONSUMIBLES QUE VA A UTILIZAR SIGA LAS MEDIDAS DE SEGURIDAD DE SU SUPERVISOR LISEZ ET COMPRENEZ LES INSTRUCTIONS DU FABRICANT EN CE QUI REGARDE CET EQUIPMENT ET LES PRODUITS A ETRE EMPLOYES ET SUIVEZ LES PROCEDURES DE SECURITE DE VOTRE EMPLOYEUR LESEN SIE UND BEFOLGEN SIE DIE BETRIEBSANLEITUNG DER ANLAGE UND DEN ELEKTRODENEINSATZ DES HER STELLERS DIE UNFALLVERHUTUNGSVOR2. 0 Amps 60 duty cycle on a ten minute basis If the duty cycle is exceeded a thermal protector will shut the machine off until it cools Technical Specifications Model No R Tech PRO MIG250 MIG Operation Fuse Rating Rated Output Current 250Amps max Generator required KVA 7 KVA Duty Cycle 250 AMPS 35 409C Duty Cycle 200 AMPS 60 409C Duty Cycle 160 AMPS 100 409C Output current Range 30 250 AMPS Wire sizes Steel 0 6 0 8 1 0mm 240V AC 50 60Hz N N Wire sizes aluminium 0 8 1 0 1 2mm MMA Operation Rated Output Current 20 OAmps Max an required KVA 7 KVA Duty Cycle 200 AMPS 35 409C Output current Range 15 200 AMPS No Load Voltage N gt 18KG Class F n20 85 Gross Weight Insulation Efficiency gt i 2 co Safety Precautions Read entire section before starting installation WARNING AN Electric Shock can kill Only qualified personnel should perform this installation Turn off input power at the fuse box before working on this equipment Do not touch electrically live parts Always connect the machine to an earthed mains supply as per national recommended standards Select suitable location Place the welder where clean cooling air can freely circulate in and out of the front amp rear louver vents Dirt dust or any foreign material that can be drawn through vents into welder must be kept to a minimum Failure to observe these precautions can resu
3. PRECAUCION French ATTENTION German WARNUNG ATENCAO Japanese e BIR LEIA E COMPREENDA AS INSTRU ES DO FABRICANTE PARA ESTE EQUIPAMENTO E AS PARTES DE USO E SIGA AS PRATICAS DE SEGURANCA DO EMPREGADOR BOBRPBHOX A OHRBELSK HSA ETBRMLTR SEU CLTRHOKEMEL HO TREN RA EE DE E S TE ALIOS Rr He DES RH BA EL OR RE B A RIRH E Raw PROHARSORERE Tag o Azo SSE AAAS SASWAD HAL ZAA ek TAE ze sbetelct Jali abal AG cabelas atl y laata Jub al gllig chant og giil EORR PT PEE Spanish AVISO DE PRECAUCION French ATTENTION German WARNUNG ATENCAO Japanese SBIR Do not touch electrically live parts or electrode with skin or wet clothing Insulate yourself from work and ground No toque las partes o los electrodos bajo carga con la piel o ropa moja da Aislese del trabajo y de la tierra Ne laissez ni la peau ni des v te ments mouill s entrer en contact avec des pi ces sous tension Isolez vous du travail et de la terre Ber hren Sie keine stromfiihrenden Teile oder Elektroden mit Ihrem K rper oder feuchter Kleidung Isolieren Sie sich von den Elektroden und dem Erdboden N o toque partes el tricas e elec trodos com a pele ou roupa molha da Isole se da pega e terra OREPORABR BEE 7 6nfdcounugoeoctrt eklSeT Ab5osisiess NCUNSBELT FEU ORRRRK MY DEMARE SEHR 9 4 B CRM ML Hie e JTH S828 Je su zE ee Su
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5. TECH www r techwelding co uk email sales r techwelding co uk Tel 01452 733933 Fax 01452 733939 PRO MIG250 PORTABLE INVERTER MIG MAG MMA WELDER OPERATING INSTRUCTIONS Version 2014 2 Thank you for selecting the R Tech PRO MIG250 Portable Inverter MIG MAG MMA Welder The PRO MIG250 has many benefits over traditional transformer MIG welders including infinite power control adjustable arc force and a durable metal wire feed mechanism to provide very smooth wire feed and weld characteristics We want you to take pride in operating our PRO MIG250 as much as we have taken in making this product for you Please read all information in this manual before operation PLEASE EXAMINE CARTON AND EQUIPMENT FOR DAMAGE IMMEDIATELY When this equipment is shipped title passes to the purchaser upon receipt from the courier Consequently all claims for material damaged in shipment must be made by purchaser against the transportation company used Please record your welding equipment identification below for future reference This information can be found on data plate at rear of machine Product PRO MIG250 Serial No Date of Purchase Where Purchased Whenever you request replacement parts or information on this equipment please supply the information you have recorded above This product is covered by 2 years parts and labour warranty we will cover cost of collecting and returning item to you UK mainland only ot
6. ad to Workpiece via the earth clamp 2 Euro torch connector Connect Euro type MIG torch to euro torch connector align torch connector to machine connector and then turn retaining ring clockwise to secure Ensure torch is secured tightly to avoid weld power problems To avoid electric shock keep the MIG torch in good condition and replace if any of the insulation is damaged 3 Mains input cable Fit required plug as per legal requirements 4 Gas inlet connection Connect gas hose to rear of machine and then to regulator on gas bottle Ensure all connections are tight to ensure no loss of gas Make sure gas bottle is secured to avoid injury as per local health and safety requirements 5 On Off Power Switch This turns the PRO MIG250 MIG Welder on and off 6 Power socket In MMA mode fit electrode holder to this to give positive electrode For MIG welding with gasless wire connect earth lead to this socket and change internal polarity cable to negative For gasless welding torch is negative and earth is positive Controls and Settings CAMeOE IGBI ProMIG 250 1 MIG MMA IGBT Inverter technology Fig 3 1 Welding Voltage This adjusts the welding voltage weld power from 0 to 10 Adjust knob for power output required by job range is 30 to 250 amps 2 Wire Speed This adjusts the wire feed speed from 0 10096 Adjust the wire speed to suit welding voltage Fig3 1 and job requirements 3 MMA Amps T
7. allow machine to cool down until the warning light goes out No output Power light is lit Gas at torch tip No wire feed Check wire feed unit protecting fuse on rear of machine if blown replace with new fuse of same rating if the fuse blows again contact R Tech Machine keeps overheating Warning light is lit on machine Check if fan is running if not contact R Tech Check the cooling vents for obstruction blow out machine with clean dry low pressure air supply Check for adequate ventilation around machine Porosity in weld No low gas at torch tip Check gas supply from gas bottle check flow rate on regulator check gas hose for restrictions check for draughts in local area open doors etc Replace MIG torch it may have gas restriction Poor weld penetration Check condition of earth lead and clamp and ensure clamp is connection via a clean area on work piece Check the condition of the MIG torch try another MIG torch Keep your head out of fumes Use ventilation or exhaust to remove fumes from breathing zone Los humos fuera de la zona de res piraci n e Mantenga la cabeza fuera de los humos Utilice ventilaci n o aspiraci n para gases Gardez la t te l cart des fum es Utilisez un ventilateur ou un aspira teur pour ter les fum es des zones de travail Vermeiden Sie das Einatmen von Schweibrauch Sorgen Sie fiir gute Be und Entliiftung des Arbeitsplatzes Man
8. ards Fan blades and switchgear Failure to maintain plant can void manufacturers warranty 2 Inspect input and output cables amp hoses for fraying and cuts replace if damaged present 3 Keep the MIG torch and earth cables in good condition 4 Clean the air vents to ensure proper air flow and cooling 5 The fan motor has sealed bearings which requires no maintenance Troubleshooting Service amp repair should only be performed by R Tech welding trained personnel Unauthorized repairs performed on this equipment may result in danger or injury to the technician and machine operator and will invalidate your warranty For your safety and to avoid electric shock please observe all safety notes and precautions detailed throughout this manual The troubleshooting guide is provided to help you locate possible machine malfunctions If fault problem is not listed below check our Mig Welder Support page on our website www r techwelding co uk support php or contact R Tech by phone Contact details can be found on our website Output Problems No output Power light is not lit Check machine on off switch is in the on position Check Input power to machine Check plug wiring Check mains trip fuses No output Fan runs Power light is lit Check torch connections are secure and torch switch operation try replacing MIG torch No output Power light is lit Warning light is lit Welding application may have exceeded recommended duty cycle
9. her areas are RTB External items torch earth lead etc are covered by 3 months warranty Any faults damage found caused by customer will be charged pro rata Please read this operator manual completely before attempting to use this equipment Pay particular attention to the safety instructions we have provided you for your protection The level of seriousness to be applied to each section is explained below WARNING A This statement appears where the information must be followed exactly to avoid serious personal injury CAUTION This statement appears where the information must be following to avoid a minor personal injury or damage to this equipment Introduction The R Tech PRO MIG250 is a member of our highly acclaimed family of welding products Premium features include e Inverter power source more efficient to operate provides smoother weld characteristics than traditional welders Infinite welding voltage to allow fine tuning of weld characteristics Euro type torch fittings for easy torch fitment replacement 35 Duty cycle at 250 Amps 40C MIG 60 Duty cycle at 200 Amps 40C MIG Lightweight and portable Ideal for maintenance and mobile welders Recommended Processes The R Tech PRO MIG250 is recommended for the MIG welding processes within its output capacity of 250 Amps DC MMA 200Amps Welding Capability Duty Cycle Equipment Limitations The R Tech PRO MIG250 is rated at 250 Amps at 35 and 20
10. his adjusts the MMA welding amperage weld power from 0 to 10 Adjust knob for power output required by job range is 15 to 200 amps 4 Mig MMA switch This switches between the machines two welding modes MIG MMA 5 OT LED If this LED illuminates the duty cycle of machine has been exceeded the machine will stop working and the fan will continue to run until machine has cooled down The light will go off and welding may be carried out again 6 Warning LED This warning light will come on under these situations to warn of either low input voltage has been sensed or there is an internal fault with machine check wiring connections if still illuminated contact R Tech support department 7T Power LED This lights when machine is switched on Wire Spool Fitment amp Polarity Change Gasless wire 1 Wire reel tensioner Remove item 4 and adjust bolt inside to adjust tension on wire feed reel if too loose when trigger is released and wire feed motor stops the reel will continue to spin and cause wire to bird nest off the reel To tight adjustment will cause premature motor failure It should just have slight tension when turned by hand 2 Roller tensioner This sets the pressure of rollers be careful not over tighten wire feed pressure roller as this can cause premature motor and roller failure Correct way to adjust tensioner is to slacken off pressure so that MIG welding wire does not feed slowly adjust pressure until wire feeds
11. lt in excessive operating temperatures which can lead to plant failure Grinding Do not direct grinding particles towards the welder An abundance of conductive material can cause plant failure Stacking This machine cannot be stacked Transport Unloading Never underestimate the weight of equipment never move or leave suspended in the air above people Use recommended lifting equipment at all times WARNING N Falling Equipment can cause injury Never lift welder with gas bottle attached Never lift above personnel Tilting Machine must be placed on a secure level surface or on a recommended undercarriage trolley This machine may topple over if this procedure is not followed Environmental Rating The welding power source carries the IP21S rating It may be used in normal industrial and commercial environments Avoid using in areas where water rain is around Read and follow the Electric Shock Warnings in the safety section if welding must be performed under electrically hazardous conditions such as welding in wet areas or water on the work piece Electrical Installation WARNING 8 A T ELECTRIC SHOCK CAN KILL Machine grounding and High Frequency Interference Protection This welder must be grounded to earth See national electrical codes fro proper grounding methods The high frequency generator being similar to a radio transmitter may cause interference to radio TV and other electronic equipment These
12. ng gloves WARNING N FUMES AND GASES can be dangerous Keep your head out of fumes amp gases produced from welding Use ventilation or exhaust to remove fumes amp gases from breathing zone and general area AW WELDING SPARKS can cause fire or explosion WARNING Keep flammable material away from work area Do not weld on containers that have held combustibles E WARNING N M ARC RAYS can burn Wear eye ear and body protection Make sure work area is protected by proper shielding to avoid injury to passers by Operating the Machine in MIG mode Once you have set machine up as per above instructions 1 Select welding voltage power required on front panel 2 Select wire feed speed required on wire speed knob 3 Ensure you are wearing the correct safety clothes amp equipment for welding I E Welding mask gloves apron etc 4 Press torch trigger to start welding process and adjust welding current knob to adjust wire feed accordingly 5 The LED display will show actual welding amperage when welding Display will show 000 when not welding Note You can finely adjust the welding current knob to fine tune weld arc length to either DIP or SPRAY welding DIP is when the wire is melting very close to the workpiece Short arc length SPRAY is when the wire is melting far away from workpiece Long arc length 1 Tips on welding aluminium When welding aluminium as the wire is much softer than steel wi
13. plug into here and twist to secure 2 Positive welding power connector Connect the electrode holder cable dinse plug into here and twist to secure Most popular rods have a positive welding electrode and negative earth If you are using special electrodes check the manufacturer s recommendation for correct polarity of welding electrodes and connect as required Ensure machine is setup as previously stated Fit desired electrode size in electrode holder Switch on machine Set Mig MMA switch to MMA position Select desired welding power Touch electrode on to workpiece and the arc will start OOP ONS When the machine is switched on output terminals are always live take care and do not touch electrode and earth by person at same time otherwise an electric shock will occur Maintenance Routine and periodic maintenance WARNING AN ELECTRIC SHOCK CAN KILL Turn the input power OFF at the mains switch amp fuse box and remove mains plug from socket before working on this equipment Have a qualified electrician install amp service this equipment Allow machine to sit for 5 minutes minimum after disconnection from mains power to allow the power capacitors to discharge before working inside this equipment Do not touch electrically live parts 1 Periodically 3 6 months depending on use environment remove the side top panels of machine and clean out machine with a low pressure dry air line paying particular attention to PC Bo
14. problems may be the result of radiated interference Proper grounding methods can reduce or eliminate this Radiated interference can develop in the following ways 1 Direct interference from welder power source 2 Direct interference from the welding leads 3 Direct interference radiated from feedback into power lines 4 Interference from re radiation by un grounded metallic objects Keeping these contributing factors in mind installing equipment as per following instructions should minimize problems 1 Keep the welder input power lines as short as possible and enclose as much of them as possible in metal conduit or equivalent shielding There should be a good electrical contact between this conduit and ground Earth 2 Keep the work and electrode leads as short as possible Tape the leads together where practical 3 Be sure the torch and earth leads rubber coverings are free from cuts and cracks that allow welding power leakage 4 Keep earth lead connection to work in good condition Clean area on workbench where earth clamp is situated on a regular basis Input Connections Make sure the voltage phase and frequency of input power is as specified on machine rating plate located at rear of machine Have a qualified electrician provide suitable input power as per national electrical codes Make sure machine is earthed grounded Make sure fuse or circuit breaker is correct rating for machine Using fuses or circuit breake
15. re you have to fit a Teflon liner in place of the steel liner in MIG torch this is so the wire feeds much smoother and stops it snarling at rollers To fit a Teflon liner remove steel liner from torch and fit Teflon liner so you have about 10 inches left coming out end of MIG torch at the machine end In the brass euro body where torch fits onto you will see a brass guide tube remove this tube you will have to remove circlip to allow this and fit torch to machine and cut off excess Teflon liner as required You want the Teflon liner to get as close to the wire feed rollers as possible Best way to cut liner is with a sharp knife blade Adjust the wire tensioner to minimum pressure and tighten down until wire is gripped too much pressure will deform wire and end up with snarls by rollers The PRO MIG250 is fitted with rollers for steel wire as standard Fit U Groove rollers for alloys and oversize welding tip These are available and have and A after tip size I E 0 8A where as for steel wire it would just say 0 8 2 Tips on using gasless wire When using gasless wire you have to change the polarity of the arc This can be done simply by reversing the cables inside wire feed cabinet Gas wire Positive torch Negative work machine is set as standard Gasless wire Negative torch Positive earth Operating the Machine in MMA mode Connect the following 1 Negative welding power connector Connect the earth cable dinse
16. rs smaller than recommended will result in nuisance shut off from welder inrush currents even if welding at low amperages Failure to follow these instructions can cause immediate failure within the welder and void machines warranty Turn the input power OFF at the mains switch amp fuse box before working on this equipment Have a qualified electrician install amp service this MIG welding equipment Allow machine to sit for 5 minutes minimum to allow the power capacitors to discharge before working inside this equipment Do not touch electrically live parts The PRO MIG250 MIG Welder requires a 240V 50 60Hz 1 Phase 22A supply It comes with a 2 metre mains cable attached Connect wires according to national coding Brown wire Live Blue wire Neutral Green Yellow Wire Earth Ground Connecting to an Engine Driven Generator If connecting this machine to an engine driven generator please ensure the following Minimum Generator KVA Output 7 KVA continuous Generator to be fitted with AVR automatic voltage regulation DO NOT USE ON A GENERATOR WITHOUT AVR Connecting to a generator without the above minimum requirements may in validate your warranty Connections for PRO MIG250 Setup machine as per two diagrams below Fig 1 Fig 2 1 Earth Workpiece connector Connect the earth lead negative to this connector Insert male connector into socket and twist clockwise until tight Secure other end of earth le
17. smoothly you should be able to stop wire feeding by holding wire and it should slip on rollers If you have too little pressure wire will slip when welding causing unwanted Burn back into tips or erratic weld beads size 3 Wire Feed Drive Assembly Make sure rollers are correct size for wire diameter selected to change roller size release retaining screw remove roller turn roller around and slide onto shaft making sure the right size groove is in line with wire and refit retaining screw The Pro MIG250 comes fitted with a dual roller 0 6mm 0 8mm amp 0 8mm 1 0mm 4 Wire reel retainer Remove the wire reel retainer and wire reel adaptor slide on roll of wire and refit the reel adaptor 5 Internal negative connector When using gasless wire move internal inside wire feed cabinet cable to this connector This then makes the torch negative you would then connect Workpiece earth lead to positive connector on front of machine fig 2 1 6 Internal positive connector When using normal welding wire not gasless move internal inside wire feed cabinet cable to this connector This then makes the torch positive you would then connect Workpiece earth lead to negative connector on front of machine fig 2 2 Operating the Machine SAFETY PRECAUTIONS WARNING A ELECTRIC SHOCK CAN KILL Do not touch electrically live parts or electrode with skin or wet clothing Insulate yourself from work and ground Always wear dry insulati
18. tenha seu rosto da fuma a Use ventila o e exhaust o para remover fumo da zona respirat ria eta AnP5AtRd4k5cuc Feu ORR PHBC ABRL TRE ems e UR Ee e FH i Boo HE IRL SRER TS e 43294 SA7IAS HY HAL esixioserH 84728 HHPI Ash 7AA 5578 ASsHYA 2 gati ge luas ul as e pA os bi ja jl As sql axial e qub o Am itl AMG ge gaai sag uet Turn power off before servicing Desconectar el cable de ali mentaci n de poder de la m quina antes de iniciar cualquier servicio D branchez le courant avant l entre tien Strom vor Wartungsarbeiten abschalten Netzstrom v llig ff nen Maschine anhalten N o opere com as tampas removidas Desligue a corrente antes de fazer servico N o toque as partes el tricas nuas e VF VR F EALRW PD PSB EFPBRATY FE DBF M2TKE e HENDER euHo AAS RHS e Aia Als pbi Qd ui e Jud ill e Do not operate with panel open or guards off No operar con panel abierto o guardas quitadas N op rez pas avec les panneaux ouverts ou avec les dispositifs de protection enlev s Anlage nie ohne Schutzgeh use oder Innenschutzverkleidung in Betrieb setzen Mantenha se afastado das partes moventes N o opere com os paineis abertos ou guardas removidas ONAWPEBDN eRYALEEE Wai LEW TR SU ORRIN MRLARS BHR ego Sel dep 45A OPAL ALAY calls iil qal iia gadi Y Ae cl Aull gt Ap ant Spanish AVISO DE
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