Lincoln Electric IM788 Troubleshooting Guide, Problems Possible Areas Symptoms Misadjustments

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E-2

TROUBLESHOOTING

E-2

TROUBLESHOOTING GUIDE

Observe Safety Guidelines detailed in the beginning of this manual.

PROBLEMS

POSSIBLE AREAS OF

(SYMPTOMS)

MISADJUSTMENT(S)

 

 

OUTPUT PROBLEMS

Major physical or electrical damage

Contact your LOCAL LINCOLN

is evident.

AUTHORIZED FIELD SERVICE

 

FACILITY.

 

 

 

 

No wire feed, weld output or gas

1.

Make sure correct voltage is

flow when gun trigger is pulled. Fan

 

applied to the machine (115

does NOT operate.

 

vac).

 

2.

Make certain that power switch

 

 

is in the ON position.

 

3.

Make sure Circuit Breaker is

 

 

Reset.

 

 

 

No weld output or wire feed when

Contact your LOCAL LINCOLN

gun trigger is pulled. Fan runs and

AUTHORIZED FIELD SERVICE

gas flows normally.

FACILITY.

 

 

 

 

No weld output when gun trigger is

1.

Arc voltage may be set too low.

pulled. Fan runs, gas flows and

 

 

 

wire feeds normally.

2.

Gun tip may be worn – Replace.

 

3.

Check for correct input voltage

 

 

to machine.

 

4.

Gun or work cable may be

 

 

faulty.

 

 

 

 

No Wire feed, weld output or gas

1.

Check the circuit breaker locat-

flow when the gun trigger is pulled -

 

ed in the machine’s wire drive

Fan operates normally.

 

compartment. Reset if tripped.

 

2.

The thermostat may be tripped

 

 

due to overheating. Let machine

 

 

cool. Weld within the duty cycle

 

 

or remove any air obstruction to

 

 

machine.

 

3.

Wire feed motor may be over-

 

 

loaded. Correct feeding prob-

 

 

lem.

RECOMMENDED COURSE OF ACTION

Contact your local Lincoln Authorized Field Service Facility.

4. Gun trigger may be faulty.

CAUTION

If for any reason you do not understand the test procedures or are unable to Perform the tests/repairs safely, contact your

LOCAL AUTHORIZED LINCOLN ELECTRIC FIELD SERVICE FACILITY for assistance before you proceed.

SP-135 PLUS

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Contents SP-135 Plus California Proposition 65 Warnings SafetyElectric Shock can kill Iii Welding Sparks can cause fire or explosionSûreté Pour Soudage a L’Arc Précautions DE SûretéOn-Line Product Registration Please Examine Carton and Equipment For Damage ImmediatelyTable of Contents Technical Specifications SP-135 Plus InstallationRead entire installation section before starting Safety PrecautionsInstallation Identify and Locate ComponentsWork Cable Installation Work Clamp InstallationSelect Suitable Location StackingConnecting Gun Cable to the SP-135 GUN InstallationGAS Connection PlusFigure A.5 Input ConnectionsRequirements For Maximum Output Code Requirements for Input ConnectionsRequirements For Rated Output Operation Observe all safety information throughout this manualFumes and Gases can be dangerous Welding Sparks can cause fire or explosionDesign Features Advantages Controls and SettingsGeneral Description Welding CapabilitySequence of Operation Wire LoadingWelding Operations Wire Threading Friction Brake AdjustmentMaking a Weld Shielding GasProcess Guidelines Changing Machine Over to Feed Other Wire SizesCleaning Tip And Nozzle Overload Protection Wire Feed Overload ProtectionOutput Overload Thermal ProtectionApplication Chart K586-1 Deluxe Adjustable Gas Regulator Hose Kit AccessoriesOptional Accessories Innershield Fcaw Conversion Replacement PartsMaintenance Safety Precautions MaintenanceItems Requiring no Maintenance Routine and Periodic MAINTE- NanceConfiguration of Components in Wire Feeding System GUN and Cable MaintenanceFor Magnum 100L GUN Contact Tip Cable Liner Drive RollChanging Drive Roll Changing the Contact TIPGUN Handle Parts Changing LinerLiner trim length for gun with red trigger Magnum 100L Remove any burrs from the end of the linerHOW to USE Troubleshooting Guide TroubleshootingRecommended Course of Action Troubleshooting GuideProblems Possible Areas Symptoms Misadjustments Feeding Problems GAS Flow Problems High Voltage Wiring DiagramsPrecaucion Warnung

IM788 specifications

The Lincoln Electric IM788 is a cutting-edge industrial welding inverter known for its advanced features and technologies that enhance productivity and efficiency in various welding applications. This machine is specifically designed to cater to the demands of high-performance environments while maintaining reliability and ease of use.

One of the standout features of the IM788 is its multi-process capability. It offers MIG, TIG, and stick welding options, making it a versatile choice for welders who work with a diverse range of materials and thicknesses. This flexibility enables operators to switch processes seamlessly without compromising on performance, thereby increasing overall productivity.

The IM788 is equipped with Lincoln Electric's exclusive Synchronized Arc Control Technology, which optimizes the arc characteristic for different materials and welding conditions. This technology helps to achieve cleaner and more precise welds, minimizing the need for post-weld finishing. Additionally, the machine offers a broad range of voltage and amperage settings, allowing for fine-tuning based on specific project requirements.

Another significant attribute of the IM788 is its built-in intelligence. The machine incorporates advanced microprocessor control, which enhances user interface capabilities and allows for easy adjustments to welding parameters. The intuitive digital display provides real-time feedback on settings and performance, enabling operators to make informed decisions and adjustments as needed.

Durability is also a key characteristic of the Lincoln Electric IM788. Its hardened metal case ensures protection against harsh working conditions, while internal components are designed to withstand heavy usage. This robust construction not only extends the machine's lifespan but also maintains consistent performance even in demanding environments.

The IM788's compact design and lightweight construction make it portable and easy to transport, allowing welders to move it effortlessly between job sites. Coupled with its energy-efficient operation, this inverter contributes to lower operational costs, making it an economical investment for both small workshops and large industrial operations.

In summary, the Lincoln Electric IM788 stands out for its multi-process capabilities, advanced welding technologies, user-friendly interface, and robust design. These features make it an ideal choice for professionals seeking a reliable and efficient welding solution. Whether for fabrication shops, construction sites, or maintenance applications, the IM788 delivers exceptional performance and versatility, solidifying its position as a leading welding inverter in the market.
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