Lincoln Electric IM788 manual Feeding Problems

Page 30

 

 

 

TROUBLESHOOTING

E-3

 

E-3

Observe Safety Guidelines

detailed in the beginning of this manual.

TROUBLESHOOTING GUIDE

 

 

 

 

 

 

 

 

PROBLEMS

 

 

POSSIBLE AREAS OF

 

 

(SYMPTOMS)

 

 

MISADJUSTMENT(S)

 

 

 

 

 

 

FEEDING PROBLEMS

 

 

No wire feed when gun trigger is

 

 

1.

If the wire drive motor is running

 

 

pulled. Fan runs, gas flows and

 

 

 

check to see if the correct wire

 

 

machine has correct open circuit

 

 

 

is in the machine.

 

 

voltage (28 vdc maximum) – weld

 

 

 

 

 

 

output.

 

 

2.

If the wire drive motor is running

 

 

 

 

 

 

make sure that the correct drive

 

 

 

 

 

 

rolls are installed in the

 

 

 

 

 

 

machine.

 

 

 

 

 

3.

Check for clogged cable liner or

 

 

 

 

 

 

feeding problems.

 

 

 

 

 

 

 

 

 

Wire feed speed motor runs very

 

 

1.

Make sure that the wire speed

 

 

fast. Weld output, gas flow and fan

 

 

 

control is not set at maximum.

 

 

operate normally.

 

 

 

 

 

 

 

 

 

 

 

 

 

The wire begins to feed but shuts

 

 

1.

Wire spool friction brake adjust-

 

 

off after a short time, and will feed

 

 

 

ment set too tight. Check adjust-

 

 

again for another short interval only

 

 

 

ment of the wire spool friction

 

 

if the trigger is released and

 

 

 

brake . See "Friction Brake

 

 

pressed again. (See description

 

 

 

Adjustment" in the "OPERA -

 

 

under wire feed overload protec-

 

 

 

TION" section of this manual.

 

 

tion).

 

 

 

 

 

 

 

 

 

2.

Idle roll pressure adjustment set

 

 

 

 

 

 

too high. Check adjustment of

 

 

 

 

 

 

the idle roll pressure. See "Wire

 

 

 

 

 

 

Threading" in The "OPERA -

 

 

 

 

 

 

TION" section of this manual.

 

 

 

 

 

3.

Damaged or poorly maintained

 

 

 

 

 

 

wire feed system.

 

 

 

 

 

1.

Check for clogged or damaged

 

 

 

 

 

 

cable liner, contact tip, and guide

 

 

 

 

 

 

tubes. Replace any damaged or

 

 

 

 

 

 

excessively worn parts.

 

 

 

 

 

2. Perform "ROUTINE AND

 

 

 

 

 

 

PERIODIC MAINTENANCE" as

 

 

 

 

 

 

described in this manual.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

RECOMMENDED COURSE OF ACTION

Contact your local Lincoln Authorized Field Service Facility.

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

Image 30
Contents SP-135 Plus Safety California Proposition 65 WarningsElectric Shock can kill Welding Sparks can cause fire or explosion IiiPrécautions DE Sûreté Sûreté Pour Soudage a L’ArcPlease Examine Carton and Equipment For Damage Immediately On-Line Product RegistrationTable of Contents Installation Technical Specifications SP-135 PlusInstallation Safety PrecautionsRead entire installation section before starting Identify and Locate ComponentsSelect Suitable Location Work Clamp InstallationWork Cable Installation StackingGAS Connection GUN InstallationConnecting Gun Cable to the SP-135 PlusInput Connections Figure A.5Code Requirements for Input Connections Requirements For Rated OutputRequirements For Maximum Output Fumes and Gases can be dangerous Observe all safety information throughout this manualOperation Welding Sparks can cause fire or explosionGeneral Description Controls and SettingsDesign Features Advantages Welding CapabilityWire Loading Welding OperationsSequence of Operation Friction Brake Adjustment Wire ThreadingShielding Gas Making a WeldChanging Machine Over to Feed Other Wire Sizes Cleaning Tip And NozzleProcess Guidelines Output Overload Wire Feed Overload ProtectionOverload Protection Thermal ProtectionApplication Chart Accessories Optional AccessoriesK586-1 Deluxe Adjustable Gas Regulator Hose Kit Replacement Parts Innershield Fcaw ConversionItems Requiring no Maintenance MaintenanceMaintenance Safety Precautions Routine and Periodic MAINTE- NanceFor Magnum 100L GUN GUN and Cable MaintenanceConfiguration of Components in Wire Feeding System Contact Tip Cable Liner Drive RollChanging the Contact TIP Changing Drive RollLiner trim length for gun with red trigger Magnum 100L Changing LinerGUN Handle Parts Remove any burrs from the end of the linerTroubleshooting HOW to USE Troubleshooting GuideTroubleshooting Guide Problems Possible Areas Symptoms MisadjustmentsRecommended Course of Action Feeding Problems GAS Flow Problems Wiring Diagrams High VoltagePrecaucion 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.