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Thank you for purchasing a Sealey welder. Manufactured to a high standard this product will, if used according to these instructions and properly maintained,
give you years of trouble free performance.
IMPORTANT: BEFORE USING THIS PRODUCT, PLEASE READ THE INSTRUCTIONS CAREFULLY. MAKE CAREFUL NOTE OF SAFETY INSTRUCTIONS, WARNINGS
AND CAUTIONS. THIS PRODUCT SHOULD ONLY BE USED FOR ITS INTENDED PURPOSE. FAILURE TO DO SO MAY CAUSE DAMAGE AND/OR PERSONAL INJURY
AND WILL INVALIDATE THE WARRANTY. RETAIN THESE INSTRUCTIONS FOR FUTURE USE.
1. SAFETY INSTRUCTIONS
1.1.
ELECTRICAL SAFETY
WARNING! It is the responsibility of the owner and the operator to read, understand and comply with the following:
You must check all electrical products, before use, to ensure that they are safe. You must inspect power cables, plugs, sockets and any other connectors
for wear or damage. You must ensure that the risk of electric shock is minimised by the installation of appropriate safety devices. A Residual Current
Circuit Breaker (RCCB) should be incorporated in the main distribution board. We also recommend that a Residual Current Device (RCD) is used. It is
particularly important to use an RCD with portable products that are plugged into a supply which is not protected by an RCCB. If in any doubt consult a
qualified electrician. You may obtain a Residual Current Device by contacting your Sealey dealer.
You must also read and understand the following instructions concerning electrical safety.
1.1.1.
The Electricity at Work Act 1989 requires that all portable electrical appliances, if used on business premises, are tested by a qualified electrician, using
a Portable Appliance Tester (PAT), at least once a year.
1.1.2.
The Health & Safety at Work Act 1974 makes owners of electrical appliances responsible for the safe condition of those appliances and the safety of
the appliance operators. If in any doubt about electrical safety, contact a qualified electrician.
1.1.3.
Ensure that the insulation on all cables and on the appliance is safe before connecting it to the power supply. See 1.1.1. and 1.1.2. and use a Portable
Appliance Tester.
1.1.4.
Ensure that cables are always protected against short circuit and overload.
1.1.5.
Regularly inspect power supply cables and plugs for wear or damage and check all connections to ensure that none is loose.
1.1.6.
Important: Ensure that the voltage marked on the appliance matches the power supply to be used and that the supply is correctly fused.
1.1.7.
DO NOT pull or carry the appliance by the power cable.
1.1.8.
DO NOT pull the plug from the socket by the cable.
1.1.9.
DO NOT use worn or damaged cables, plugs or connectors. Immediately have any faulty item repaired or replaced by a qualified electrician.
1.1.10. SUPERMIG250 is a single phase machine.
IMPORTANT: TO ACHIEVE MAxIMUM OUTPUT THIS MODEL WILL REqUIRE A 30AMP FUSED SUPPLY. WE RECOMMEND YOU DISCUSS THE
INSTALLATION OF AN INDUSTRIAL ROUND PIN PLUG AND SOCKET WITH YOUR ELECTRICIAN.
Fit a plug according to the following instructions (UK only).
a) Connect the GREEN/YELLOW earth wire to the earth terminal 'E'.
b) Connect the BROWN live wire to the live terminal 'L'.
c) Connect the BLUE neutral wire to the neutral terminal 'N'.
d) After wiring, check that there are no bare wires, that all wires have been correctly connected, that the cable outer insulation extends
beyond the cable restraint and that the restraint is tight.
1.1.11.
When a cable extension reel is used it should be fully unwound before connection. A cable reel with an RCD fitted is recommended since any product
which is plugged into the cable reel will be protected.
The cross-section of the cable on the cable reel must be suitable for the unit and never lower than the cross-section of the mains cable supplied with the
unit.
1.2.
GENERAL SAFETY
DANGER! Unplug the welder from the mains power supply before performing maintenance or service.
Keep the welder and cables in good condition. Take immediate action to repair or replace damaged parts.
Use genuine parts and accessories only. Unapproved parts may be dangerous and will invalidate the warranty.
Use an air hose to regularly blow out any dirt from the liner and keep the welder clean for best and safest performance.
Check and spray the gas cup and contact tip regularly with anti-spatter spray which is available from your Sealey dealer.
Locate the welder in a suitable work area. Ensure that the area has adequate ventilation as welding fumes are harmful.
Keep work area clean, tidy and free from unrelated materials. Also ensure that the work area has adequate lighting and that a fire extinguisher is at hand.
WARNING! Use welding head shield to protect eyes and avoid exposing skin to ultraviolet rays given off by electric arc. Wear safety welding
gauntlets.
Remove ill fitting clothing, remove ties, watches, rings and other loose jewellery and contain long hair.
Ensure that the workpiece is correctly secured before operating the welder.
Avoid unintentional contact with workpiece. Accidental or uncontrolled use of the torch may be dangerous and will wear the nozzle.
Keep unauthorised persons away from the work area. Any persons working within the area must wear protective head shield and gloves.
Operators must receive adequate training before using the welder.
Stand correctly, keeping a good footing and balance, and ensure that the floor is not slippery. Wear non-slip safety shoes.
Turn voltage switch to "0" (Off) when not in use.
DO NOT operate the welder if it or its cables are damaged and DO NOT attempt to fit any unapproved torch or other parts to the welder unit.
DO NOT get welder wet or use in damp or wet locations or areas where there is condensation.
DANGER! DO NOT weld near inflammable materials, solids, liquids, or gases, and DO NOT weld containers or pipes which have held
flammable materials or gases, liquids or solids. Avoid operating on materials cleaned with chlorinated solvents or near such solvents.
DO NOT stand welder on or against a metal workbench or the workpiece.
DO NOT touch any live metal parts of the torch or electrode while the machine is switched on.
DO NOT pull the welder by the cable or the torch and DO NOT bend or strain cables. Protect cables from sharp or abrasive items and DO NOT stand on
them. Protect from heat. Long lengths of slack must be gathered and neatly coiled. DO NOT place cables where they could endanger other people.
DO NOT touch the torch or workpiece immediately after welding as they will be very hot. Allow to cool.
DO NOT operate welder while under the influence of drugs, alcohol or intoxicating medication, or if tired.
When not in use store the welder in a safe, dry, childproof area.
1.3.
GAS SAFETY
Store gas cylinders in a vertical position only and ensure that the storage area is correctly secured.
DO NOT store gas cylinders in areas where temperature exceeds 50°C. DO NOT use direct heat on a cylinder. Always keep gas cylinders cool.
DO NOT attempt to repair or modify any part of a gas cylinder or valve and DO NOT puncture or damage a cylinder.
DO NOT obscure or remove any official cylinder labels. Always check the gas identity before use. Avoid getting gas cylinders oily or greasy.
DO NOT lift a cylinder by the cap, guard or valve. Always keep caps and guards in place and close valve when not in use.
2. INTRODUCTION & SPECIFICATION
IMPORTANT: These instructions contain information you require to prepare your machine for welding, together with maintenance and a troubleshooting section.
The instructions are not intended to show the inexperienced how to weld. If you have no experience, we recommend that you seek training from an expert source.
Mig welding is relatively easy to perform, but does require a steady hand. Only time spent practising will enable you to produce consistently good welds.
Supermig250 is suitable for welding with CO2, Argon or CO2/Argon mix. It uses a forced air cooling system to slow transformer heating in order to increase duty
cycle and a non-live torch to prevent the risk of accidentally striking an arc. Supplied with an industrial Argon/CO2 regulator. Gas bottles and gas are not included.
A contract for the supply of gas should be arranged with your local gas distributor.
THE SUPERMIG250 COMES EqUIPPED WITH: Torch Mini reel of 0.8mm wire Regulator Gas hose.
S U P E R M I G 2 5 0
Supermig250
Issue No: 1 - 03/03/09
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