Lincoln Electric IM727 manual Faulty receptacles

Page 26

E-4

 

TROUBLESHOOTING

E-4

 

 

 

 

 

Observe all Safety Guidelines detailed throughout this manual

 

 

 

 

 

PROBLEMS

POSSIBLE AREAS OF

RECOMMENDED

 

(SYMPTOMS)

MISADJUSTMENT(S)

COURSE OF ACTION

 

 

 

 

Welding current too great or too

1.

“Current Control” shaft and han-

small compared to indication on the

 

dle may have turned slightly in

dial.

 

the insulated bushing of the cur-

 

 

rent control brushholder, caused

 

 

by turning handle too hard against

 

 

one of the stops.

 

2.

Exciter output low causing low

 

 

output compared to dial indica-

 

 

tion.

 

3.

“Current Control” set to minimum

 

 

and welder output so great that

 

 

engine stalls when arc is struck.

Welder has output and no control

1. Local/Remote switch is in wrong

 

position.

No auxiliary power

1.

GFCI Receptacle may have

 

 

tripped. Follow “GFCI Receptacle

 

 

Testing and Resetting Procedure”

 

 

in the MAINTENANCE section of

 

 

this manual. (GFCI Receptacle is

 

 

Optional)

 

2.

Circuit Breakers open.

 

3.

Faulty connections to auxiliary

 

 

receptacles.

If all recommended possible areas of misadjustment have been checked and the problem persists,

Contact your local Lincoln Authorized Field Service Facility.

4. Faulty receptacles.

CAUTION

If for any reason you do not understand the test procedures or are unable to perform the tests/repairs safely, contact your Local Lincoln Authorized Field Service Facility for technical troubleshooting assistance before you proceed.

SAE-400 SEVERE DUTY

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Contents IM727 Safety California Proposition 65 WarningsElectric Shock can kill Cylinder may explode if damaged Précautions DE Sûreté Sûreté Pour Soudage a L’ArcThank You Table of Contents Height Width Depth Weight InstallationTechnical Specifications SAE-400 Severe Duty Stacking Safety PrecautionsLOCATION/VENTILATION Angle of OperationPRE-OPERATION Engine Service Engine Cooling System Battery ConnectionEngine BREAK-IN Machine Grounding Spark ArrestorWelding Output Cables Table A.1 Combined Length of Electrode Work CablesOperating Instructions Safety InstructionsOperation General DescriptionOther Features Design Features and AdvantagesFor Auxiliary Power Duty CycleEngine Controls Polarity Switch Remote ControlAuxiliary Power Controls Welder ControlsStarting Instructions Engine OperationTypical Fuel Consumption BREAK-IN PeriodK1690-1 Gfci Receptacle KIT AccessoriesOptional Field Installed Accessories Periodic Maintenance MaintenanceRoutine Maintenance Engine OIL ChangeFuel PRE-FILTER/WATER Separator Assembly Bearing MaintenanceCommutator and Brush Maintenance Cooling SystemSecondary Fuel Filter Engine Maintenance Components Make Part NumberWater Separator Element For machines with integral spark arresting muf- flers Gfci Receptacle Testing and RESET- Ting ProcedureFor machines with separate spark arresting unit Troubleshooting HOW to USE Troubleshooting GuideContact your local Lincoln Symptoms Misadjustments Course of ActionPossible Areas Contact your local Lincoln Authorized Field Service Facility Faulty receptacles Wiring DiagramsSAE-400 Severe DutyDimension Print M8869-23SAE-400 Sever Duty Precaucion Aviso DE

IM727 specifications

Lincoln Electric IM727 is a highly regarded machine in the welding industry, particularly known for its remarkable performance and innovative features. This versatile inverter-based welding machine has been designed to meet the demands of various welding applications while ensuring ease of use and efficiency.

One of the standout features of the IM727 is its advanced inverter technology. This technology allows for a more compact design while maintaining exceptional power output and energy efficiency. With a lightweight structure, the IM727 is easy to transport, making it an ideal choice for both field work and shop environments.

The IM727 is equipped with a wide range of welding processes, including MIG, TIG, and Stick welding. This versatility allows users to switch between different welding methods depending on the specific requirements of a project, making it highly adaptable to various materials such as steel, stainless steel, and aluminum. The intuitive interface provides straightforward controls, making the setup process quick and easy for both novice and experienced welders.

Another significant characteristic of the IM727 is its precise arc control, which enhances the quality of the welds. The machine features digital control circuitry that offers consistent arc stability, reducing spatter and improving the final appearance of the weld bead. This not only reduces the amount of post-weld cleanup required but also ensures stronger, more reliable welds.

Safety is a paramount concern in welding, and the IM727 comes equipped with several protective features. Overcurrent protection, thermal overload protection, and a built-in fan ensure that the machine operates safely and reliably. These features extend the machine’s lifespan and provide peace of mind to the user.

Furthermore, the IM727 is designed with user-friendly accessibility in mind. The front panel provides clear indicators and settings to facilitate easy operation, while the rugged construction ensures durability even in harsh working conditions.

In conclusion, Lincoln Electric IM727 stands out as a versatile welding machine with advanced inverter technology, multiple welding capabilities, and a focus on user safety and convenience. Its combination of portability, performance, and reliability makes it an excellent choice for professionals looking to elevate their welding operations. Whether used in a busy fabrication shop or on-site repairs, the IM727 is engineered to deliver exceptional results in diverse welding scenarios.
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