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Summary of Contents for Clarke AT135
- Page 1 WARNING: A suitable welding headshield must be worn during use WARNING: Read these instructions before using the machine ARC TIG/MMA WELDER MODEL NO: AT135 PART NO: 6012147 OPERATION & MAINTENANCE INSTRUCTIONS ORIGINAL INSTRUCTIONS DL0821 - REV 3...
- Page 2 The AT135 is designed to be used for both metal ARC (MMA) and TIG welding (TIG welding leads are not supplied with the machine. These are however, readily available from your CLARKE dealer (Part number 6012232)).
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Page 3: General Safety Instructions
GENERAL SAFETY INSTRUCTIONS WARNING: WHEN USING ELECTRICAL TOOLS, BASIC SAFETY PRECAUTIONS SHOULD ALWAYS BE FOLLOWED TO REDUCE THE RISK OF FIRE, ELECTRIC SHOCK AND PERSONAL INJURY. WARNING: READ ALL THESE INSTRUCTIONS BEFORE ATTEMPTING TO OPERATE THIS PRODUCT AND KEEP THESE INSTRUCTIONS IN A SAFE PLACE. ELECTRIC SHOCK •... -
Page 4: Personal Protection
FIRE OR EXPLOSION Welding can cause fires and explosions. Precautions should be taken to prevent these hazards. • Before starting work ensure the area is clear of flammable materials. • Move any combustible materials to a safe distance, especially substances likely to generate a dangerous vapour. -
Page 5: Protective Clothing
• 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. • NEVER use or store in a wet/damp environment. DO NOT EXPOSE TO RAIN. -
Page 6: Safety Symbols
SAFETY SYMBOLS Read this instruction Do not expose to rain. booklet carefully before use. Wear eye protection Recycle unwanted materials instead of disposing of them as waste. All tools, accessories and Wear protective gloves packaging should be sorted, taken to a recycling centre and disposed of in a manner which is compatible... -
Page 7: Electrical Connections
ELECTRICAL CONNECTIONS WARNING: READ THESE ELECTRICAL SAFETY INSTRUCTIONS THOROUGHLY BEFORE CONNECTING THE PRODUCT TO THE MAINS SUPPLY. Connect the mains lead to a standard, 230 Volt (50Hz) electrical supply through an approved 13 amp BS 1363 plug, or a suitably fused isolator switch. If the plug has to be changed because it is not suitable for your socket, or because of damage, it must be removed and a replacement fitted, following the wiring instructions shown below. -
Page 8: Cable Extension
CABLE EXTENSION Always use an approved extension cable suitable for the power rating of this tool (see specifications), the conductor size should also be at least the same size as that on the machine, or larger. When using a cable reel, always unwind the cable completely. -
Page 9: Mma/Arc Welding
MMA/ARC WELDING A consumable electrode is connected to a high amperage low voltage supply which creates an electric arc between the electrode and the workpiece. Benefits over TIG welding include, less experience needed, torch kit or shielding gas are not required. PREPARATION •... -
Page 10: Striking The Arc - Welding
5. Switch ON using the switch located on the rear panel. • The green light on the front panel should glow, indicating the machine is • If the machine stops at any time and the amber light comes ON, the thermal overload device has intervened. -
Page 11: Tig Welding
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, • Molten weld pool, •... -
Page 12: Tig Welding (Ref Fig.2)
TIG WELDING (REF FIG.2) • The machine is not equipped with a TIG welding torch and cables; these are available from your Clarke dealer (Part number 6012232). • Additionally, before TIG welding, you must obtain a gas cylinder of 100% pure Argon. - Page 13 8. Open the gas valve on the torch handle, • This will allow gas to flow from the torch nozzle. 9. Cover your face with the head shield, bring the torch to within 3-4mm of the work, and at an angle of 45°, so that the ceramic nozzle gently touches the work surface.
- Page 14 Guidelines for the TIG welding current needed and recommended electrode sizes etc. for different gauges of material are shown in the chart below: Welding Workpiece Welding Filler Rod Gas Flow Metal Current Thickness Electrode Dia (mm) ltr/min (Amps) (mm) Dia (mm) Mild 20-30 Steel...
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Page 15: Welding Pitfalls
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. -
Page 16: Troubleshooting
Spark will not start Bad clamp connection. Check clamp connection. Inverter printed circuit is Contact your nearest defective. CLARKE dealer. No output voltage Overheated machine (the Wait for thermal cutout to yellow LED should be on). be reset. Under-voltage/over-voltage Check the mains distribution limits exceeded. -
Page 17: Maintenance
DEFECT CAUSES SUGGESTIONS High Sprays Electrode is too inclined. Make appropriate corrections. Profile defects. Welding parameters are Follow basic and general incorrect. welding principles. Pass rate is not related to operating parameter requirements. Electrode not inclined constantly while welding. Arc is unstable. Insufficient current. -
Page 18: Rating Plate
RATING PLATE Name and address of manufacturer Rated Welding Current Symbol Model Number, / Part Number Conventional Load Voltage Symbol Serial / Batch Number Energy Supply Symbol Welding Power Source Rated Supply Voltage British Standards applied Rated Maximum Supply Current Welding Process Symbol Maximum Effective Supply Current This symbol indicates that the unit is... -
Page 19: Specifications
However, CLARKE International reserve the right to change specifications at any time without prior notice. ACCESSORIES The following are some of the accessories available from your CLARKE dealer. Please quote the part numbers shown below: DESCRIPTION... - Page 20 EXPLODED DIAGRAM & PARTS LIST AT135 Parts & Service: 020 8988 7400 / E-mail: Parts@clarkeinternational.com or Service@clarkeinternational.com...
- Page 21 DESCRIPTION NO DESCRIPTION Strap Top Housing Temi160 rectifier radiator Switch Inductance Line card Fast recovery diode Fan hood Control PCB Power cable Main PCB Bottom Bridge heatsink Rubber Foot IGBT Radiator Front Plastic Panel IGBT Radiator Quick connector ASM Support bar Knob IGBT Radiator Shade...
- Page 22 DECLARATION OF CONFORMITY-UKCA Parts & Service: 020 8988 7400 / E-mail: Parts@clarkeinternational.com or Service@clarkeinternational.com...
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Page 23: Declaration Of Conformity (Ce)
DECLARATION OF CONFORMITY-CE Parts & Service: 020 8988 7400 / E-mail: Parts@clarkeinternational.com or Service@clarkeinternational.com... - Page 24 Parts & Service: 020 8988 7400 / E-mail: Parts@clarkeinternational.com or Service@clarkeinternational.com...
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