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140A PROFESSIONAL MIG WELDER

MODEL NO: 

SUPERMIG140.V2

Thank you for purchasing a Sealey product. 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:

 PLEASE READ THESE INSTRUCTIONS CAREFULLY. NOTE THE SAFE OPERATIONAL REQUIREMENTS, WARNINGS & CAUTIONS. USE 

THE PRODUCT CORRECTLY AND WITH CARE FOR THE PURPOSE FOR WHICH IT IS INTENDED. FAILURE TO DO SO MAY CAUSE DAMAGE AND/OR 

PERSONAL INJURY AND WILL INVALIDATE THE WARRANTY. KEEP THESE INSTRUCTIONS SAFE FOR FUTURE USE.

1.  SAFETY

 

1.1.    

ELECTRICAL SAFETY

 

‰

  

WARNING!

 It is the user’s responsibility to check the following:

 

Check all electrical equipment and appliances to ensure that they are safe before using. Inspect power supply leads, plugs and    

 

all electrical connections for wear and damage. Sealey recommend that an RCD (Residual Current Device) is used with all electrical  

 

products. You may obtain an RCD by contacting your local Sealey stockist. 

 

If the product is used in the course of business duties, it must be maintained in a safe condition and routinely PAT (Portable  

 

 

Appliance Test) tested.

 

Electrical safety information, it is important that the following information is read and understood.

 

Ensure that the insulation on all cables and on the appliance is safe before connecting it to the power supply. 

 

Regularly inspect power supply cables and plugs for wear or damage and check all connections to ensure that they are secure.

 Important

: Ensure that the voltage rating on the appliance suits the power supply to be used and that the plug is fitted with the  

 

 

correct fuse - see fuse rating in these instructions.

 

8

  

DO  NOT

 pull or carry the appliance by the power cable.

 

8

  

DO NOT

 pull the plug from the socket by the cable. 

 

8

  

DO  NOT

 use worn or damaged cables, plugs or connectors. Ensure that any faulty item is repaired or is 

  replaced immediately by a qualified electrician.

 

This product is fitted with a BS1363/A 13 Amp 3 pin plug. 

        

 If the cable or plug is damaged during use, switch off the electricity supply and remove from use. 

        

 Ensure that repairs are carried out by a qualified electrician.

        

 Replace a damaged plug with a BS1363/A 13 Amp 3 pin plug. If in doubt contact a qualified electrician.

 

 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’.

       

 Ensure that the cable outer sheath extends inside the cable restraint and that the restraint is tight. 

        

 Sealey recommend that repairs are carried out by a qualified electrician. 

 

Cable extension reels. 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 section of the cable on the cable  

 

 

reel is important and should be at least 1.5mm², but to be absolutely sure that the capacity of the cable is suitable for this product  

 

 

and for others that may be used in the other output sockets, we recommend the use of 2.5mm² section cable. 

 

‰

  

WARNING! 

Be very cautious if using a generator to power the welder. The generator must be self-regulating and stable with  

 

 

regard to voltage, wave form and frequency. The output must be greater than the power consumption of the welder. If any of  

 

 

these requirements is not met the electronics within the welder may be affected. NOTE: The use of an unregulated generator  

 

 

may be dangerous and will invalidate the warranty on the welder.

 

‰

 

  WARNING! 

The welder may produce voltage surges in the mains supply which can damage other sensitive equipment e.g. computers. To  

 

prevent this happening, it is recommended that the welder is connected to a power supply that does not feed any sensitive equipment.

 

IMPORTANT!

 If using welder to full capacity, we recommend a 16amp supply. We recommend you discuss the installation of a 16amp  

 

industrial round pin plug and socket with your electrician.

Original Language Version

© Jack Sealey Limited

Refer to 

instructions

Electric shock 

from welding 

electrodes can 

kill.

Hot surfaces

Breathing 

welding 

fumes can be 

hazardous to 

your health.

Electromagnetic 

fields can cause 

pacemaker 

malfunction.

 

Wear eye 

protection

 

Wear protective 

gloves

Welding sparks 

can cause 

explosions or 

fire.

Arc rays can 

burn eyes and 

injure skin.

 

Wear safety 

footwear

 

Wear protective 

clothing

Warning!

Keep away 

from rain

Warning!

Electricity

Shock hazard

Recommended fuse rating

13 Amp

S

UPERMIG140.V2  Issue:1       08/07/22

Summary of Contents for SUPERMIG140.V2

Page 1: ... a damaged plug with a BS1363 A 13 Amp 3 pin plug If in doubt contact a qualified electrician 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 Ensure that the cable outer sheath extends inside the cable restraint and that the restraint is tight Sealey recommend that repairs a...

Page 2: ...ce of drugs alcohol or intoxicating medication or if tired 9 When not in use store the welder in a safe dry childproof area 1 3 GAS SAFETY 9 Store gas cylinders in a vertical position only and ensure the storage area is correctly secured 8 DO NOT store gas cylinders in areas where the temperature may exceed 50 C DO NOT use direct heat on a cylinder Always keep gas cylinders cool 8 DO NOT attempt t...

Page 3: ...g wire reel will run on the larger diameter flange at the base of the reel spindle A Place the wire reel C onto the spindle ensuring that the wire withdraws from the top of the spool in a forwards direction towards the wire feed unit Place the plastic top disc D over the end of the spindle followed by the reel spring E 4 4 3 Thread the pressure knob F onto the end of the spindle and screw it down ...

Page 4: ...of the control panel Wire speed must be adjusted according to current output using the rotary control below the power switches The higher the current the faster the wire speed A gas cup fits over the contact tip to direct gas flow towards the weld See fig 9 ensuring that the arc welding process is shielded from oxidisation The shielding gas also assists heating of the weld The torch is connected t...

Page 5: ...your Sealey stockist 7 5 TURNING FEED ROLLER IMPORTANT Turn the feed roller to suit the wire size 7 5 1 There are two grooves on the feed roller 0 6mm and 0 8mm Always have the groove that is being used on the outside of the roller nearest to you To turn the feed roller first loosen the knob on the wire tension screw and move the screw into its down position see fig 10 1 then move the tensioning r...

Page 6: ...es not feed feed roller rotates Pressure roller improperly adjusted Adjust wire tension Section 3 6 Dirt copper dust etc have collected in torch liner Clean the liner from the machine forward Use compressed air If too much dirt replace the liner Sections 6 2 6 6 Gas cup nozzle or tip defective Replace gas cup nozzle and or tip Sections 6 3 6 4 Deformed wire Check roller tension Section 3 6 Wire fe...

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