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100A NO-GAS INVERTER MIG WELDER

MODEL NO: 

MINIMIG100

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 read, understand and comply with the following:

1.1.1. 

  

You must check all electrical equipment and appliances to ensure they are safe before using. You must inspect power supply leads,   

 

plugs and all electrical connections for wear and damage. You must ensure the risk of electric shock is minimised by the installation of  

 

appropriate safety devices. An RCCB (Residual Current Circuit Breaker) should be incorporated in the main distribution board. We    

 

also recommend that an RCD (Residual Current Device) is used with all electrical products. It is particularly important to use an RCD  

 

together with portable products that are plugged into an electrical supply not protected by an RCCB. If in doubt consult a qualified    

 

electrician. You may obtain a Residual Current Device by contacting your Sealey stockist. You must also read and understand the    

 

following instructions concerning electrical safety.

1.1.2. 

  

The Electricity At Work Act 1989 requires all portable electrical appliances, if used on business premises, to be tested by a qualified   

 

electrician, using a Portable Appliance Tester (PAT), at regular intervals.

1.1.3. 

  

The Health & Safety at Work Act 1974 makes owners of electrical appliances responsible for the safe condition of the appliance, and  

 

the safety of the appliance operator. If in any doubt about electrical safety, contact a qualified electrician.

1.1.4. 

  

Ensure the insulation on all cables and the product itself is safe before connecting to the mains power supply. See 1.1.1. & 1.1.2.  

 

 

above and use a Portable Appliance Tester (PAT).

1.1.5. 

  

Ensure that cables are always protected against short circuit and overload.

1.1.6. 

  

Regularly inspect power supply leads, plugs and all electrical connections for wear and damage. Inspect power connections to  

 

 

ensure that none is loose.

 

IMPORTANT:

 Ensure the voltage marked on the product is the same as the electrical power supply to be used and check that plugs   

 

are fitted with the correct capacity fuse. A 13 amp plug may require a fuse smaller than 13 amps for certain products,

 

see fuse rating at right.

 

8

  

DO NOT 

pull or carry the powered appliance by its power supply lead.

 

8

  

DO NOT 

pull power plugs from sockets by the power cable.

 

8

  

DO NOT

 use worn or damaged leads, plugs or connections. Immediately replace or have repaired by a  

 

 

 

 

qualified electrician. A U.K. 3 pin plug must be fitted according to the following instructions.

 

(UK only - see diagram at right).

 

Ensure the unit is correctly earthed via a three-pin plug.

 

a) Connect the green/yellow earth wire to the earth terminal.

 

b) Connect the brown live wire to live terminal.

 

c) Connect the blue neutral wire to the neutral terminal.

 

d) After wiring, check that there are no bare wires, that all wires have been correctly connected, that the 

 

cable external insulation extends beyond the cable restraint and that the restraint is tight.

1.1.7. 

  

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 welding set. 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 welding set. If any of the  

 

requirements are not met the electronics within the welding set may be affected.

 

NOTE: The use of an unregulated generator may be dangerous and will invalidate the warranty on the welding set.

Replacement  

fuse rating: 13A

Original Language Version

© Jack Sealey Limited

Refer to 

instructions

Welding sparks 

can cause 

explosions        

or fire

Breathing 

welding 

fumes can be 

hazardous to 

your health

 Wear eye 

protection

 Wear protective 

gloves

Electric shock 

from welding 

electrodes can 

kill

 Wear safety 

footwear

 Wear protective 

clothing

Electromagnetic 
fields can cause 

pacemaker 

malfunction

Arc rays can 

burn eyes and 

injure skin

 Keep away  

from rain

 Warning

Wear a      

welding helmet

Minimig100  Issue 1 23/05/22

Summary of Contents for MINIMIG100

Page 1: ...e Inspect power connections to ensure that none is loose IMPORTANT Ensure the voltage marked on the product is the same as the electrical power supply to be used and check that plugs are fitted with the correct capacity fuse A 13 amp plug may require a fuse smaller than 13 amps for certain products see fuse rating at right 8 DO NOT pull or carry the powered appliance by its power supply lead 8 DO ...

Page 2: ...r 8 DO NOT touch any live metal parts of the torch or electrode while the welding set is switched on 8 DO NOT pull the welding set by the cable or the torch Protect cables from sharp or abrasive items DO NOT bend strain or stand on cables or leads 9 Protect from heat Long lengths of slack must be gathered and neatly coiled DO NOT place cables where they endanger others 8 DO NOT touch the torch or ...

Page 3: ... 3 5 1 2 Unscrew and remove the star knob spring and retaining disc fig 3 and place to one side 5 1 3 Slide the wire reel onto the reel holder fig 4 5 1 4 Reattach the star knob spring and retaining disc and fully tighten fig 4 8 DO NOT over tighten 5 1 5 Ensure that the wire is spooling off from the bottom of the wire reel in the direction of the wire drive unit fig 4 5 2 FEEDING THE WIRE THROUGH...

Page 4: ...ch tension will cause problematic wire feed and poor weld quality 5 3 2 Tension between rollers is checked by slowing down the wire between your gloved fingers If the top feed rollers skid the tension is correct Use as low a tension as possible too high a tension will deform wire and result in a blown fuse on the printed circuit board Adjust tension by turning the pressure knob fig 4 5 4 TURNING C...

Page 5: ...remove the clamp fig 12 7 6 3 Undo the torch case and pull the wire liner from insulation block fig 13 7 6 4 Pull out the liner from the torch cable 7 6 5 Insert the replacement liner NOTE Ensure that the liner is fully inserted into the torch insulation block 7 6 6 Reassemble the torch 7 6 7 Trim the other end of the liner as close to the feed roller as possible 7 6 8 Reattach the torch cable cla...

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