Lincoln Electric IM909 manual Safety Precautions, Routine and Periodic Maintenance

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MAINTENANCE

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SAFETY PRECAUTIONS

WARNING

ELECTRIC SHOCK can kill.

•Only qualified personnel should perform this maintenance.

•Turn the input power OFF at the disconnect switch or fuse box before working on this equipment.

•Do not touch electrically hot parts.

WARNING

To avoid receiving a high frequency shock, keep the TIG torch and cables in good condition.

ROUTINE AND PERIODIC MAINTENANCE

Very little routine maintenance is necessary to keep your Precision TIG 375 running in top condition. No specific schedule can be set for performing the follow- ing items; factors such as hours of usage and machine environment should be considered when establishing a maintenance schedule.

•Periodically blow out dust and dirt which may accu- mulate within the welder using an air stream.

•Inspect welder output and control cables for fraying, cuts, and bare spots.

•Inspect the spark gap at regular intervals to maintain the recommended spacing. See the Service Procedures (See Service Procedures in this Section) for complete information on spark gap set- tings.

•The fan motor has sealed ball bearings which require no maintenance.

OVERLOAD PROTECTION

FAN-AS-NEEDED (F.A.N.)

The Precision TIG 375 has the F.A.N. circuit feature, which means the cooling fan will operate only while welding; then for about 8 minutes after welding has stopped to assure proper machine cooling. This helps reduce the amount of dust and dirt drawn into the machine with the cooling air. The cooling fan will oper- ate briefly when the machine power is initially turned on, and continuously while the yellow Thermal Shutdown Light is lit (see Thermostatic Protection).

THERMOSTATIC PROTECTION

This welder has thermostatic protection from excessive duty cycles, overloads, loss of cooling, and excessive ambient temperatures. When the welder is subjected to an overload, or inadequate cooling, the primary coil thermostat and/or secondary coil thermostat will open. This condition will be indicated by the illumination of the yellow Thermal Shutdown Light on the front panel (see Item 10 in Section B). The fan will continue to run to cool the power source. Postflow occurs when TIG welding is shut down, but no welding is possible until the machine is allowed to cool and the yellow Thermal Shutdown Light goes out.

NO ARC PROTECTION

The machine outputs (Background / OCV, gas and HF) will be shutdown, if the trigger is closed without weld- ing for 15 seconds to protect the Background resistor from overheating with F.A.N. cooling off, as well as to conserve on gas waste.

AUXILIARY POWER CIRCUIT BREAKER

The 115vac auxiliary circuits and rear receptacle (see Section A Auxiliary Power Connections) are protected from overloads by a 15 amp circuit breaker, located above the receptacle. If the breaker trips its button pops out exposing a red ring. When the circuit breaker cools the button can be reset by pressing it back in.

Note: When the breaker trips not only will the recepta- cle’s auxiliary and cooler power be interrupted, but so will the power to the shielding gas solenoid and machine cooling fan.

The Export models also include a 5 amp circuit break- er, located on the opposite side of the upper case back, for protection of the 220vac Schuko type cooler recep- tacle.

PRECISION TIG 375

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Contents Precision TIG California Proposition 65 Warnings SafetyElectric Shock can kill Cylinder may explode if damaged Sûreté Pour Soudage a L’Arc Précautions DE SûretéSafety Safety Thank You Table of Contents Rated Input Single Phase only InstallationPrecision TIG Additional Output Capacity Recommended Input Wire and Fuse SizesPhysical Dimensions Temperature RangesSafety Precautions Input and Grounding Connections Work Cable Connection Output CABLES, Connections and LimitationsStick Electrode Cable Connection Figure A.2 TIG Torch ConnectionFigure A.3 Auxiliary Power ConnectionsFigure A.4 Robotic Interface ConnectionWelding Sparks OperationProduct Description Pipe ThawingEquipment Limitations Recommended Processes and EquipmentRecommended Processes Process LimitationsFigure B.1 Control Panel Controls and SettingsOperation Advanced Panel Controls Do not USE 4-STEP if Using AN Amptrol RemoteOperation TIG Welding Features Internal SET UP ControlsStick Welding Features Figure B.3 Figure B.4 Setup Guidelines for TIG Welding with AN Amptrol TIG Weld Cycle ChartUsing the Start Pedal Foot Amptrol K870-1 Figure B.5 Recommended Electrode Amperage Ranges Precision TIG Making a TIG Weld with AN AmptrolOptional Equipment AccessoriesFactory Installed Options Field Installed OptionsOverload Protection MaintenanceSafety Precautions Routine and Periodic MaintenanceUNDER-COOLER Service Service ProceduresComponent Access Spark GAP AdjustmentHOW to USE Troubleshooting Guide TroubleshootingOutput Problems SymptomsCourse of Action GAS Problems Meter ProblemsHI-FREQ Problems Preset & Output Control Problems TIG Welding Problems Stick Welding ProblemsTIG Problems Precision TIG 375 Wiring Diagram for Code L11660 Dimension PrintPage 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.
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