INTRODUCTION Thank you for purchasing this CLARKE Welder. Before attempting to operate the machine it is essential that you read this manual thoroughly and carefully follow all instructions given. In doing so you will ensure the safety of yourself and that of others around you, and you can also look forward to the welder giving you long and satisfactory service.
The MIG270DV Multi is equipped with high-speed ARM platform, adopting a unique fine waveform control method with low spatter and an elegant weld bead. • The MIG270DV Multi gives a freely adjustable arc shape with the “Arc Control” knob, and can freely set the inductance of the arc. •...
• Max feeding speed is 24m/min. • The digitally controlled wire feeding system makes the wire feeding more stable. • The built-in database with ‘synergic’ mode makes welding easier. • The digital operating panel is simple and intuitive. It can display the preset current and voltage and also the actual welding current and voltage.
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THE MACHINE RATING PLATE Name/address of manufacturer Energy Supply symbol Model Number Range of Output Part Number Rated No-load Voltage Welding Power Source Conventional Load Voltage British Standards applied Insulation grade Welding Process symbol Rated Supply Voltage Degree of Protection Rated Maximum Supply Current Welding Current symbol Max Effective Supply Current...
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SAFETY PRECAUTIONS FOR ALL WELDING WARNING: AS WITH ALL MACHINERY, THERE ARE CERTAIN HAZARDS INVOLVED WITH THEIR OPERATION AND USE. EXERCISING RESPECT AND CAUTION WILL CONSIDERABLY LESSEN THE RISK OF PERSONAL INJURY. HOWEVER, IF NORMAL SAFETY PRECAUTIONS ARE OVERLOOKED, OR IGNORED, PERSONAL INJURY TO THE OPERATOR MAY RESULT.
atmosphere or where the radiant energy can penetrate to atmospheres containing even minute amounts of trichloroethylene or perchloroethylene. FIRE AND EXPLOSION PREVENTION Causes of fire and explosion are: 1. Combustibles reached by the arc, flying sparks, hot slag or heated material; 2.
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DO NOT overload arc welding equipment. It may overheat cables and cause a fire. Loose cable connections may overheat or flash and cause a fire. NEVER strike an arc on a cylinder or other pressure vessel. It creates a brittle area that can cause a violent rupture or lead to such a rupture later under rough handling.
persons who will be looking directly at the weld. Others working in the area should wear flash goggles. Before starting to weld, make sure that screen or bay doors are closed. SHOCK PREVENTION Exposed live conductors or other bare metal in the welding circuit, or in unearthed, electrically-LIVE equipment can fatally shock a person whose body becomes a conductor.
5. NEVER use or store in a damp environment. DO NOT EXPOSE TO RAIN. 6. NEVER attempt any electrical or mechanical repair unless your are a qualified technician. If you have a problem with the machine contact your local CLARKE dealer.
9. NEVER allow the earth cable or torch to become wrapped around the operator or any person in the vicinity. A comprehensive range of CLARKE safety equipment for use when welding is available from your local dealer. See page 45.
SAFETY SYMBOLS The following symbols may be displayed on the machine or its packaging. Read this instruction Do not expose to rain. booklet carefully before use. Wear welding mask Recycle unwanted materials under WEEE Directive Wear protective gloves General Hazard Wear a dust mask Warning;- Magnetic field created...
ELECTRICAL CONNECTION WARNING! READ THESE ELECTRICAL SAFETY INSTRUCTIONS THOROUGHLY BEFORE CONNECTING THE PRODUCT TO A POWER SUPPLY. THE INSTALLATION OF THIS APPLIANCE SHOULD BE CARRIED OUT BY A COMPETENT ELECTRICIAN AND BE IN ACCORDANCE WITH CURRENT IEE WIRING REGULATIONS (BS4343). IMPORTANT: This product requires a 64A power supply which may make it unsuitable for some users.
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OVERVIEW OF MACHINE FEATURES THE CONTROL FUNCTIONS The MIG270DV Multi-welder is fitted with the following features: 1) TORCH CONNECTION (2) ARC CONTROL This knob controls the output characteristics of the arc. Rotating clockwise, the arc is soft, deeper penetration and smaller spatter, but with weak stability. Rotating anticlockwise, the arc is harder, better stability, but penetration depth becomes shallower and the spatter increases.
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(5) DIGITAL AMP/FEEDING METER MIG/MAG: In standby mode, the wire feeding speed is displayed in separate mode, the set current is displayed in Synergetic mode, and the actual current is displayed during welding. MMA/TIG: display the set current during standby, and display the actual current during welding.
welding specification; after releasing the switch, the welding will be performed with the normal welding specification given by the wire feeder; when the welding torch switch is pressed again. After that, it will switch to the set arc welding specification and stop welding when the switch is released.
2. Press and hold "Wire Inspection" and "Two-step, four-step special four-step selection key" at the same time to enter and exit the internal function parameters. The meanings of the function parameters are as shown in the following table. FUNCTION PARAMETERS 2T AND 4T SETTINGS ARE AVAILABLE AS FOLLOWS: 2T;- Start welding when pressing the torch switch and stop welding upon release.
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Functional Content Comment Defaults content set value Pre-gas 0~5s Pre-gas setting F01- Starting current Starting Base on output current 0-200%; A:125% only and arc length current Under F01, press “Synergic” setting A:0~200% change to arc length control Arc length V:5~+5 F02- Down slop time 0~5s...
PREPARING THE MACHINE FOR USE LOOSE ITEMS SUPPLIED When unpacking, any damage or deficiency should be reported to your CLARKE dealer immediately. • 1 x MB 25AK welding torch with hose (0.8mm tip fitted) • 1 x Electrode holder/lead •...
After the wire diameter is selected, check that the wire diameter matches the size of the wire feeding roller and the welding torch components. Spools of welding wire are available from your CLARKE dealer. Parts & Service: 020 8988 7400 / E-mail: Parts@clarkeinternational.com or Service@clarkeinternational.com...
1. Open the side panel and remove the locking nut. • The retaining locknut nut has a left- hand thread. 2. Place a spool of welding wire over the spindle. • DO NOT release the tension on the wire as it will unravel, causing feeding problems later.
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• We recommend you cut off and discard the first 10 cm of wire from the spool to avoid any burrs and then straighten the next few centimetres of wire to help with feeding. 2. Loosen the tensioning levers and pivot towards you. 3.
BEFORE STARTING WORK WARNING: WHEN WELDING ALWAYS ENSURE THERE IS ADEQUATE VENTILATION IN THE WORK AREA DUE TO TOXIC FUMES. WARNING: DO NOT STRIKE THE ELECTRODE ON THE WORKPIECE, AS THIS MAY DAMAGE THE ELECTRODE. WARNING: WELDING ARCS PRODUCE HARMFUL UV/IR LIGHT WHICH CAN SERIOUSLY DAMAGE YOUR EYES.
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CONNECTION AND USE METHOD FOR MANUAL ARC WELDING (MMA) CONNECTION OF OUTPUT CABLES FOR MANUAL ARC WELDING There are two ways to connect the power output cable: front connection and reverse connection. 1. Front connection The workpiece is connected with "+", welding clamp is connected with "-". Manual arc welding is often used to weld acid electrodes.
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Connect the work piece to “-” and the electrode holder to “+”. This connection is often used for alkaline electrodes. The weld penetration is deep. and good for arc stability when using this negative connection welding alkaline electrodes. OPERATION USING MMA 1.
The cylinder should be secured to the cylinder bracket with the strap. For MAG gas welding, please use gases that meet the MAG welding requirements. When mixing two bottles of gas, a proportioner must be used to avoid uneven mixing. PREPARATION BEFORE USE OF GAS SHIELDED MIG WELDING Leather gloves and safety boots should be worn to protect the operator's skin or exposed parts of the body.
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CONNECTION AND OPERATION FOR MIG/MAG Connect the attachments as shown in the diagram on page 23. 1. Connect the torch to the socket on the front panel. 2. Connect the earth cable” - ” on the front panel and ensure a reliable connection between the earth cable and the work piece.
2. For Flux or MMA welding, select the appropriate welding rod and fit it into the welding rod holder. The following sizes can be used and are available from your CLARKE dealer. ROD DIAMETER WORKPIECE THICKNESS 0.6 mm 0.8 mm...
CONTROL SETTINGS Refer to pages 14- 15 for detailed control panel functions. 1. Turn on the gas regulator of the gas cylinder. The gas pressure will be shown by the gauge. 2. Turn the gas regulator anticlockwise. Loosen the wire roller while pressing on the torch switch and adjusting the gas flow as required.
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MACHINE STATUS MESSAGES DISPLAYED Code Functions Details Description Default setting Standard/Fast Feeding ON/OFF OFF-standard mode select On-Fast Feeding Burn back (s) 5.0~5.0 Burn back time setting Slow feeding (m/min) 5.0~5.0 Only control it under F00- Pre-gas (s) 0.01-2.00s Post gas time setting 0.10 Post gas (s) 0.01-2.00s...
OPERATING THE WELDER (MIG) 1. With the welding current set and the wire trimmed, set the wire feed control to an intermediate setting. 2. Approach the work with the torch tip at an angle of about 45 and pull the torch trigger fully.
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OPERATING THE WELDER (MMA/ARC) The consumable electrode is connected to a high amperage low voltage supply which creates an electric arc between the electrode and the workpiece. The most difficult aspect of the arc welding process, particularly for beginners, is that of striking an arc.
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OPERATING THE WELDER (TIG WELDING) TIG welding is primarily for very thin materials. It uses a non-consumable tungsten (or tungsten alloy) electrode held in a torch. A shielding gas (100% Argon), is fed through the torch to protect: • The electrode •...
TIG WELDING Before TIG welding you must obtain the correct torch and a gas cylinder of 100% pure Argon. (see page 45) To prepare the machine for TIG welding, adopt the following procedure. 1. Plug the work clamp lead in to the +ve terminal, and secure the work clamp to the workpiece.
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• The torch is advanced in the direction of welding, without lateral movement, maintaining the torch angle of 45 to the workpiece. (A TIG torch kit is not supplied with the machine. These are available from your CLARKE dealer (Part number 6012232/6012239). WELDING SETTINGS TABLES L-SHAPED BUTT WELDING Metal...
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FLAT FILLET WELDING LAP JOINT (THIN PLATE) Metal Wire Welding Welding Welding Gas Flow thickness diameter current (A) voltage (V) speed (cm/ (L/min) (mm) (mm) min) 0.8 - 0.9 65-75 16-17 10-15 0.8 - 0.9 80-100 19-20 10-15 1.0-1.2 130-150 20-22 10-15 10-15...
WELDING PITFALLS The arc welding technique is an acquired skill and requires considerable practice before perfect results are obtained. The diagrams below will help to explain the pitfalls in your technique and how to overcome them. ARC TOO SHORT This causes irregular masses of weld to be deposited, with slag contamination on an uneven surface.
MACHINE ERROR CODES The machine error codes are displayed on the panel contact your nearest CLARKE dealer if repairs are required. Error Fault Cause Remedy Input over voltage Input voltage too high Check the voltage and correct Input under voltage...
DEFECT CAUSES SUGGESTIONS Spark will not start Bad clamp connection. Check clamp connection. Inverter PCB defective. Contact your nearest CLARKE dealer. No output voltage Overheated machine Wait for thermal cutout to be reset. Internal relay has failed. Contact your nearest CLARKE dealer.
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DEFECT CAUSES SUGGESTIONS High splatter Electrode is too inclined. Make appropriate corrections. Contaminated wire or work- piece. Poorly matched current or voltage. Arc is unstable Insufficient current. Check condition of electrode and earth wire connection. Electrode melts Electrode core is not centred. Replace electrode.
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DEFECT CAUSES SUGGESTIONS Erratic wire feed. Tensioning knob too tight. Loosen tensioning knob slightly. Tension roller worn. Check and replace if necessary. Insufficient pressure on Increase pressure on tension tension roller. roller Caution: DO NOT over-tighten. Wire dirty, rusty, damp or bent. Re-cut wire and ensure it is clean.
To keep the contact tip free from spatter, we recommend the use of anti-spatter spray (6000715) available from your CLARKE dealer. Torch shroud: The torch shroud must also be kept clean and free from spatter. Build-up of spatter inside the gas cup can cause a short circuit at the contact tip which will result in expensive machine repairs.
COMPONENT PARTS Coupling Left side panel Feed holding panel Pull off connector Handle Air damper (U/D) Potentiometer knobs Hinge Radiator Control panel Top cover IGBT board Display/PCB Cylinder holder 1 Thermal cutout Front cover case Connection box Castor wheel Front panel Heater connector Air damper (L/R) Pos connection strip...
6000705 GUARANTEE This CLARKE product is guaranteed against faulty manufacture for a period of 12 months from the date of purchase. Please keep your receipt as proof of purchase. This guarantee is invalid if the product is found to have been abused or tampered with in any way, or not used for the purpose for which it was intended.
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Dual Gauge CO Regulator 8134100 A Gas Regulator, Arc Activated Headshields, Anti-spatter Spray, Swan Necks, Torch Shrouds and Torch Liner are also available from your CLARKE dealer or our parts division. Parts & Service: 020 8988 7400 / E-mail: Parts@clarkeinternational.com or Service@clarkeinternational.com...
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DECLARATION OF CONFORMITY - UK Parts & Service: 020 8988 7400 / E-mail: Parts@clarkeinternational.com or Service@clarkeinternational.com...
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