Lincoln Electric IM702-A manual Safety Precautions

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INSTALLATION

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SAFETY PRECAUTIONS

Read entire installation section before starting installation.

WARNING

ELECTRIC SHOCK can kill.

•Only qualified personnel should perform this installation.

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

•Do not touch electrically hot parts.

•Always connect the Precision TIG 275 grounding screw (behind the reconnect panel cover located near the back of the left case side) to a good electrical earth ground.

•Always connect the Precision TIG 275 to a power supply grounded in accordance with the National Electrical Code and all local codes.

SELECT SUITABLE LOCATION

Place the welder where clean cooling air can freely cir- culate in through the top rear vents and out through the bottom rear vents. Dirt, dust or any foreign material that can be drawn into the welder should be kept at a minimum. Failure to observe these precautions can result in excessive operating temperatures and nui- sance trips.

GRINDING

Do not direct grinding particles towards the welder. An abundance of conductive material can cause mainte- nance problems.

STACKING

The Precision TIG 275's cannot be stacked .

UNDERCARRIAGE LIFTING AND MOVING

When the Precision TIG 275 is purchased as a weld- ing package, or used with any of the available Undercarriage optional accessories, proper installation makes the Precision TIG 275 lift bale nonfunctional. Do not attempt to lift the power source with an under- carriage attached. The undercarriage is designed for hand moving only; mechanized movement can lead to personal injury and/or damage to the Precision TIG 275.

TILTING

Each machine must be placed on a secure, level sur- face, either directly or on a recommended undercar- riage. The machine may topple over if this precaution is not followed.

ENVIRONMENTAL RATING

Precision TIG 275 power sources carry an IP21S Environmental rating. They are rated for use in damp, dirty rain-sheltered environments.

MACHINE GROUNDING AND HIGH FRE- QUENCY INTERFERENCE PROTECTION

The frame of the welder must be grounded. A ground screw marked with the symbol is located on the input connection panel (Figure A.1) for this purpose. See your local and nation- al electrical codes for proper grounding methods.

The spark gap oscillator in the high frequency genera- tor, being similar to a radio transmitter, can be blamed for many radio, TV and electronic equipment interfer- ence problems. These problems may be the result of radiated interference. Proper grounding methods can reduce or eliminate radiated interference.

The Precision TIG 275 has been field tested under rec- ommended installation conditions and has been found to comply with F.C.C. allowable radiation limits. This welder has also been found to comply with NEMA stan- dards for high frequency stabilized power sources.

Radiated interference can develop in the following four ways:

•Direct interference radiated from the welder.

•Direct interference radiated from the welding leads.

•Direct interference radiated from feedback into the power lines.

•Interference from re-radiation of "pickup" by ungrounded metallic objects.

Keeping these contributing factors in mind, installing the equipment per the following instructions should minimize problems.

1.Keep the welder power supply lines as short as pos- sible and completely enclose them in rigid metallic conduit or equivalent shielding for a minimum dis- tance of 50 feet (15.2 m). There must be good elec- trical contact between this conduit and the welder. Both ends of the conduit must be connected to a driven ground and the entire length must be contin- uous.

2.Keep the work and electrode leads as short as pos- sible and as close together as possible. Lengths should not exceed 25 feet (7.6 m). Tape the leads together when practical.

PRECISION TIG 275

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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’ArcThank You Table of Contents Rated Input Single Phase only InstallationPrecision TIG Temperature Ranges Recommended Input Wire and Fuse SizesPhysical Dimensions Additional Output CapacitySafety Precautions Input and Grounding Connections Stick Electrode Cable Connection Work Cable ConnectionOutput CABLES, Connections and Limitations 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 Setup Guidelines for TIG Welding with AN Amptrol TIG Weld Cycle ChartUsing the Start Pedal Foot Amptrol K870-1 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 GuideOutput Problems SymptomsCourse of Action Meter Problems GAS ProblemsHI-FREQ Problems Preset & Output Control Problems Stick Welding Problems TIG Welding ProblemsTIG Problems Precision TIG 275 Wiring Diagram for Code SCR3 Enhanced Diagrams Dimension Print K1826-1 DOMESTIC, K1826-2 Canada and K1827-1 Export Precision TIG Warnung Aviso DE

IM702-A specifications

The Lincoln Electric IM702-A is a versatile and innovative welding machine that has garnered attention for its advanced features and robust performance. Designed for various welding applications, the IM702-A is a go-to choice for professionals in the industry, offering precision, reliability, and ease of use.

One of the standout characteristics of the IM702-A is its advanced inverter technology. This allows for a lightweight and compact design, making it easier to maneuver in tight spaces compared to traditional welding machines. The inverter technology also contributes to energy efficiency, reducing power consumption without compromising on performance.

The IM702-A features a multi-process capability, enabling it to perform MIG, TIG, and Stick welding with ease. This versatility makes it ideal for a wide range of projects, from industrial manufacturing to home repairs. Users can seamlessly switch between different welding processes, enhancing productivity and streamlining workflow.

In terms of user interface, the Lincoln Electric IM702-A is designed with convenience in mind. It boasts a digital display that provides real-time information on welding parameters, making it easier for operators to monitor and adjust settings as needed. The intuitive controls are user-friendly, allowing even novice welders to achieve professional-quality results.

The machine also includes advanced weld control features, such as precise amperage and voltage adjustments. These controls ensure that users can achieve optimal settings for different materials and thicknesses, resulting in clean, strong welds. Additionally, the IM702-A is equipped with an automatic voltage adjustment feature, which helps maintain consistent performance under varying input conditions.

Durability is another key selling point for the IM702-A. Built with high-quality materials and engineering, this welding machine is designed to withstand the rigors of daily use in demanding environments. Its rugged construction provides reliability and longevity, ensuring that it remains a valuable asset in any workshop.

Lastly, safety is a priority in the design of the IM702-A. It includes several built-in safety features, such as thermal overload protection and a stabilized arc performance that reduces the risk of arc blow, protecting both the operator and the equipment.

Overall, the Lincoln Electric IM702-A stands out in the welding market due to its advanced technologies, multi-process capabilities, user-friendly interface, and robust safety features, making it an excellent choice for professional welders seeking high-quality performance and versatility.
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