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Troubleshooting

 

 

 

Service & repair should only be performed by R-Tech welding trained personnel. Unauthorized 
repairs performed on this equipment may result in danger or injury to the technician and machine 
operator and will invalidate your warranty. For your safety and to avoid electric shock, please 
observe all safety notes and precautions detailed throughout this manual  
  
The troubleshooting guide is provided to help you locate possible machine malfunctions  
  
If fault / problem is not listed below check our  Mig Welder Support  page on our website:   

www.r-techwelding.co.uk/support.php

  or contact R-Tech by phone. Contact details can be found 

on our website  

 
 

 Output Problems

 

 

 

No output - Power light is not lit 

 

Check machine on/off switch is in the ‘on’ position Check Input power to machine Check plug 
wiring Check mains trip / fuses

   

 

 

No output - Fan runs - Power light is lit  

Check torch connections are secure and torch switch operation, try replacing MIG torch.

  

  

 

No output - Power light is lit - Warning light is lit  

Welding application may have exceeded recommended duty cycle, allow machine to cool 

down until the warning light goes out.  

 

 

 

No output – Power light is lit – Gas at torch tip – No wire feed  

Check wire feed unit protecting fuse on rear of machine, if blown replace with new fuse of 

same rating, if the fuse blows again contact R-Tech

    

 

Machine keeps overheating - Warning light is lit on machine   

Check if fan is running – if not contact R-Tech. Check the cooling vents for obstruction, blow 

out machine with clean dry low pressure air supply.  Check for adequate ventilation 
around machine

   

 

Porosity in weld – No / low gas at torch tip   

Check gas supply from gas bottle  Check flow rate on regulator  Check gas hose for 

restrictions  Check for draughts in local area, open doors etc  Replace MIG torch – may 
have gas restriction

   

 

Poor weld penetration  
 

Check condition of earth lead and clamp and ensure clamp is connection via a clean area on 

work piece. Check the condition of the MIG torch, try another MIG torch

.

 

Summary of Contents for I-MIG160 MIG

Page 1: ...I MIG160 MIG MMA WELDER OPERATION INSTRUCTIONS www r techwelding co uk ...

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Page 3: ...nformation can be found on the data plate at rear of machine Product I MIG160 Serial No ___________________________________ Date of Purchase _____________________________ Where Purchased _____________________________ Whenever you request replacement parts or information on this equipment please always supply information you have recorded above This product is covered by a 2 year parts and labour w...

Page 4: ... IMIG 160 is recommended for the MIG welding processes within its output capacity of 160 Amps DC Equipment Limitations The R Tech IMIG 160 is protected from overloads beyond the output ratings and duty cycle as per machine specifications with thermostat protection of the output coils and rectifiers Welding Capability Duty Cycle The R Tech IMIG 160 is rated at 160 Amps at 35 and 110 Amps 60 duty cy...

Page 5: ... an earthed mains supply as per national recommended standards Select suitable location Place the welder where clean cooling air can freely circulate in and out of the front rear louver vents Dirt dust or any foreign material that can be drawn through vents into welder must be kept to a minimum Failure to observe these precautions can result in excessive operating temperatures which can lead to pl...

Page 6: ...Electrical Installation WARNING ELECTRIC SHOCK CAN KILL Machine grounding and High Frequency Interference Protection This welder must be grounded to earth See national electrical codes fro proper grounding methods The high frequency generator being similar to a radio transmitter may cause interference to radio TV and other electronic equipment These problems may be the result of radiated interfere...

Page 7: ...commended will result in nuisance shut off from welder inrush currents even if welding at low amperages Failure to follow these instructions can cause immediate failure within the welder and void machines warranty Turn the input power OFF at the mains switch fuse box before working on this equipment Have a qualified electrician install service this MIG welding equipment Allow machine to sit for 5 ...

Page 8: ...lectric shock keep the MIG torch in good condition and replace if any of the insulation is damaged 3 Mains input cable Fit required plug as per your electrical installation 4 Gas inlet connection Connect gas hose to rear of machine and then to regulator on gas bottle Ensure all connections are tight to ensure no loss of gas Make sure gas bottle is secured to machine securely using supplied chain t...

Page 9: ...enetration for thicker materials 4 Voltage LED Display This shows the preset welding voltage when no welding is being carried out When welding this shows the actual welding voltage This allows the machine to be calibrated to BS if required by your company 5 Amperage LED Display This shows the preset wire feed speed when no welding is being carried out When welding this shows the actual welding amp...

Page 10: ...feeding by holding wire and it should slip on rollers If you have too little pressure wire will slip when welding causing unwanted Burnback into tips 3 Wire Feed Drive Assembly Make sure rollers are correct size for wire diameter selected to change roller size release retaining screw remove roller turn roller around and slide onto shaft making sure the right size groove is in line with wire and re...

Page 11: ...an be dangerous Keep your head out of fumes gases produced from welding Use ventilation or exhaust to remove fumes gases from breathing zone and general area WARNING WELDING SPARKS can cause fire or explosion Keep flammable material away from work area Do not weld on containers that have held combustibles WARNING ARC RAYS can burn Wear eye ear and body protection Make sure work area is protected b...

Page 12: ... have to fit a Teflon liner in place of the steel liner in MIG torch this is so the wire feeds much smoother and stops it snarling at rollers To fit a Teflon liner remove steel liner from torch and fit Teflon liner so you have about 10 inches left coming out end of MIG torch at the machine end In the brass euro body where torch fits onto you will see a brass guide tube remove this tube you will ha...

Page 13: ...ive earth If you are using special electrodes check the manufacturer s recommendation for correct polarity of welding electrodes and connect as required 1 Ensure machine is setup as previously stated 2 Fit desired electrode size in electrode holder 3 Switch on machine 4 Select desired welding power 5 Touch electrode on to workpiece and the arc will start When the machine is switched on output term...

Page 14: ...side this equipment Do not touch electrically live parts 1 Periodically 3 6 months depending on use environment remove the side top panels of machine and clean out machine with a low pressure dry air line paying particular attention to PC Boards Fan blades and switchgear Failure to maintain plant can void manufacturers warranty 2 Inspect input and output cables hoses for fraying and cuts replace i...

Page 15: ... secure and torch switch operation try replacing MIG torch No output Power light is lit Warning light is lit Welding application may have exceeded recommended duty cycle allow machine to cool down until the warning light goes out No output Power light is lit Gas at torch tip No wire feed Check wire feed unit protecting fuse on rear of machine if blown replace with new fuse of same rating if the fu...

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