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8.  TROUBLESHOOTING

Original Language Version

© Jack Sealey Limited

Sealey Group, Kempson Way, Suffolk Business Park, Bury St Edmunds, Suffolk. IP32 7AR

 01284 757500 

 01284 703534 

 [email protected] 

 www.sealey.co.uk

ENVIRONMENT PROTECTION

Recycle unwanted materials instead of disposing of them as waste. All tools, accessories and packaging should be sorted, taken to 

a recycling centre and disposed of in a manner which is compatible with the environment. When the product becomes completely 

unserviceable and requires disposal, drain any fluids (if applicable) into approved containers and dispose of the product and fluids 
according to local regulations.

WEEE REGULATIONS

Dispose of this product at the end of its working life in compliance with the EU Directive on Waste Electrical and Electronic Equipment 
(WEEE). When the product is no longer required, it must be disposed of in an environmentally protective way. Contact your local solid 

waste authority for recycling information.

REGISTER YOUR

PURCHASE HERE

Note

: It is our policy to continually improve products and as such we reserve the right to alter data, specifications and component 

parts without prior notice. Please note that other versions of this product are available. If you require documentation for alternative 

versions, please email or call our technical team on [email protected] or 01284 757505.

Important

: No Liability is accepted for incorrect use of this product.

Warranty

: Lifetime guarantee on Transformer - Comprises 1 year unconditional parts and labour on all parts, followed by a lifetime 

guarantee (parts and labour) conditional on registering your purchase with us online at www.sealey.co.uk.

PROBLEM

POSSIBLE CAUSE

REMEDY

Weld current interrupted.

Overheating protection activated due to overload.

Protection automatically resets when transformer has cooled (approx. 15 mins).

No weld current, fuse blowing in 13amp plug.

Rectifier blown.

Replace rectifier.

No weld current.

Bad connection between clamp and workpiece.

Clean or grind contact surface and weld area.

Break in earth lead.

Repair or replace earth lead.

Break in torch lead.

Repair or replace. 

Feed motor not working.

Gear damaged or worn.

Replace gears (Section 6.7).

Motor defective.

Replace motor (Contact service agent).

Wire does 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 feeds unevenly.

Dirt, etc, in liner.

Clean the liner from the machine forward using compressed air.

Gas cup (nozzle) or tip defective.

Replace gas cup (nozzle) and/or tip (Sections 6.3 & 6.4).

Gas cup (nozzle) spattered.

Clean or replace gas cup (nozzle) (Sections 6.3 & 6.4).

Feed roller groove clogged.

Clean feed roller (Sections 6.1 & 6.5).

Feed roller groove deformed.

Replace feed roller (Section 6.5).

Pressure roller tension incorrect.

Adjust tension (Section 3.6).

Unstable arc.

Incorrect settings.

Check settings (Section 3.7).

Impurities in weld area.

Clean and/or grind workpiece (Section 4.2.1).

Worn or defective gas cup (nozzle).

Replace gas cup (nozzle) (Sections 6.3 & 6.4).

Porous weld.

No gas.

Open gas cylinder, regulate gas flow.

Gas cup clogged.

Clean or replace cup (Section 6.4).

Draft blowing away shielding gas.

Screen off welding site or increase gas flow.

Rusty/dirty joints.

Clean or grind the workpiece (Section 4.2.1).

Torch too far from, or at wrong angle to, workpiece.

Gas cup to workpiece should be 8-10mm. Torch angle approx 75°.

Gas leak.

Check hoses, connections and torch assembly.

Wire sticking in gas cup (nozzle).

Worn or defective gas cup (nozzle).

Replace gas cup (nozzle) (Section 6.4).

Wire deformed.

Check roller tension (Section 3.6).

Wire speed too slow.

Increase wire speed. (Section 3.7).

Irregular weld head.

Torch incorrectly held.

Use correct torch angle.

Wire weaving in weld pool.

Check roller tension and adjust (Section 3.6).

Weld bead too narrow and raised.

Weld current too low.

Increase power and wire speed (Section 3.7).

Weld speed too fast.

Move torch slower and weave a little more.

Weld bead too wide.

Weld current too low.

Increase current and wire speed (Section 3.7).

Weld speed too slow.

Move torch faster and weave less.

Poor penetration.

Weld current too low.

Increase current and wire speed (Section 3.7).

Arc too long.

Bring torch closer to workpiece.

Excessive penetration.

Weld current too high.

Decrease current and wire speed (Section 3.7).

Weld speed too slow.

Move torch faster.

Incorrect distance of torch to workpiece.

Torch distance should be 8-10mm.

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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