Lincoln Electric IM909 manual Stick Welding Problems, TIG Welding Problems

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E-6

 

TROUBLESHOOTING

E-6

 

 

 

 

 

 

Observe all Safety Guidelines detailed throughout this manual

 

 

 

 

 

 

PROBLEMS

POSSIBLE

RECOMMENDED

 

 

(SYMPTOMS)

CAUSE

COURSE OF ACTION

 

 

 

 

 

 

STICK WELDING PROBLEMS

Stick electrode "blast off" when arc

1.

Current may be set too high for

is struck

 

electrode size

 

2.

(Machine with Advanced Control

 

 

PC board only) Hot Start level set

 

 

too high

 

 

 

Stick electrode "sticks" in the weld

1.

Current may be set too low for

puddle

 

electrode size

 

2.

(Machine with Advanced Control

 

 

PC board only) Arc Force level set

 

 

too low

 

 

 

If all recommended possible areas of misadjustment have been checked and the problem persists, Contact your local Lincoln Authorized Field Service Facility.

TIG WELDING PROBLEMS

Poor starting in DC polarity

1.

Input line may be too low

 

2.

Bad connection at P11 of Control

 

 

PC board

 

3.

Bad Background rectifier, back-

 

 

ground resistor R7, or background

 

 

diode D2

 

 

 

Arc "flutters" in DC polarity, o.k. in

1.

Tungsten not "sharp"

AC polarity

 

 

 

2.

Bad free wheeling diode D1 or its

 

connection

 

 

 

Arc "flutters" in both DC & AC polari-

1.

Tungsten electrode may be too

ties

 

large in diameter for the current

 

 

setting

 

2.

Gas shielding may be insufficient.

 

3.

Contaminated gas or leaks in the

 

 

gas line, torch, or connections

 

4.

Helium blend is used as a shield-

 

 

ing gas

 

 

 

 

 

 

If all recommended possible areas of misadjustment have been checked and the problem persists, 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 Lincoln Authorized Field Service Facility for technical troubleshooting assistance before you proceed.

PRECISION TIG 375

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Contents Precision TIG Safety California Proposition 65 WarningsElectric Shock can kill Cylinder may explode if damaged Précautions DE Sûreté Sûreté Pour Soudage a L’ArcSafety Safety Thank You Table of Contents Precision TIG InstallationRated Input Single Phase only Temperature Ranges Recommended Input Wire and Fuse SizesPhysical Dimensions Additional Output CapacitySafety Precautions Input and Grounding Connections Stick Electrode Cable Connection Output CABLES, Connections and LimitationsWork Cable Connection TIG Torch Connection Figure A.2Auxiliary Power Connections Figure A.3Robotic Interface Connection Figure A.4Pipe Thawing OperationProduct Description Welding SparksProcess Limitations Recommended Processes and EquipmentRecommended Processes Equipment LimitationsControls and Settings Figure B.1 Control PanelOperation Do not USE 4-STEP if Using AN Amptrol Remote Advanced Panel ControlsOperation Stick Welding Features Internal SET UP ControlsTIG Welding Features Figure B.3 Figure B.4 Using the Start Pedal Foot Amptrol K870-1 TIG Weld Cycle ChartSetup Guidelines for TIG Welding with AN Amptrol Figure B.5 Making a TIG Weld with AN Amptrol Recommended Electrode Amperage Ranges Precision TIGField Installed Options AccessoriesFactory Installed Options Optional EquipmentRoutine and Periodic Maintenance MaintenanceSafety Precautions Overload ProtectionSpark GAP Adjustment Service ProceduresComponent Access UNDER-COOLER ServiceTroubleshooting HOW to USE Troubleshooting GuideCourse of Action SymptomsOutput Problems Meter Problems GAS ProblemsHI-FREQ Problems Preset & Output Control Problems Stick Welding Problems TIG Welding ProblemsTIG Problems Precision TIG 375 Wiring Diagram for Code Dimension Print L11660Page Page Warnung Aviso DE

IM909 specifications

Lincoln Electric IM909 is an innovative industrial multi-process inverter welder designed to provide exceptional flexibility, performance, and user-friendly operation for a wide range of welding applications. This versatile machine is suitable for both novice and experienced welders, making it an ideal choice for workshops, fabrication shops, and maintenance operations.

At the core of the IM909 is its multi-process capability, allowing users to perform MIG, TIG, and stick welding operations. This means that a single machine can cater to various welding needs, from thin sheet metal to heavy structural projects, providing great versatility in welding materials like steel, stainless steel, and aluminum. The IM909 is designed to meet the demands of today’s welding professionals, enabling seamless transitions between different welding processes without sacrificing performance.

One of the standout features of the IM909 is its advanced inverter technology. The inverter design not only makes the welder compact and lightweight but also enhances energy efficiency and improves arc stability. This results in better control over the welding process, leading to higher quality welds with reduced spatter. Additionally, the IM909 boasts a wide output range, allowing it to handle various welding thicknesses effectively.

Another significant characteristic of the IM909 is its user-friendly interface. The machine comes equipped with a digital display that provides clear readouts of current settings, making it easy for users to monitor and adjust parameters on the fly. Moreover, the intuitive controls simplify the setup process, streamlining operations for users of all experience levels.

Safety is always a top priority in welding operations, and the IM909 integrates several protective features, including over-temperature protection and circuit breaker safeguards. These elements ensure the durability of the machine and protect both the welder and the equipment from potential hazards.

In conclusion, the Lincoln Electric IM909 multi-process inverter welder stands out as a reliable, efficient, and adaptable welding solution. Its combination of advanced inverter technology, multi-process capabilities, user-friendly operation, and safety features makes it an excellent investment for any welding professional looking for quality and versatility in their equipment. Whether performing intricate fabrication work or tackling heavy-duty welding tasks, the IM909 delivers exceptional performance across a wide range of applications.