Lincoln Electric IM702-A manual Meter Problems, GAS Problems

Page 33

E-3

 

TROUBLESHOOTING

 

 

 

 

E-3

 

 

 

 

 

 

 

 

 

 

Observe all Safety Guidelines detailed throughout this manual

 

 

 

 

 

 

 

 

 

 

PROBLEMS

 

POSSIBLE

 

RECOMMENDED

 

(SYMPTOMS)

 

CAUSE

 

COURSE OF ACTION

 

 

 

 

 

 

 

 

 

 

 

 

METER PROBLEMS

 

 

 

 

 

 

 

 

 

 

 

 

Meter does not light up

1. Bad meter or its connection

 

 

 

 

 

 

 

2.

Bad connection at P8 of Control

 

 

 

 

 

 

 

 

PC board

If all recommended possible areas

 

 

 

 

 

 

3.

Faulty Control PC board

of

misadjustment

have

been

 

 

 

 

checked and the problem persists,

 

 

 

 

Contact

your

local

Lincoln

Meter does not display V (Volt) or

1. Bad Display switch or its connec-

Authorized Field Service Facility.

Min A (Minimum current)

 

tion

 

 

 

 

 

 

 

2.

Bad connection at P9 of Control

 

 

 

 

 

 

 

 

PC board

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

GAS PROBLEMS

 

 

 

 

 

No gas

1. Circuit breaker CB1 open. Press

 

 

 

 

 

 

 

 

CB1 in to reset

 

 

 

 

 

 

 

2.

Bad connection at P12 of Control

 

 

 

 

 

 

 

 

PC board

 

 

 

 

 

 

 

3.

Faulty gas solenoid valve SV1 or

 

 

 

 

 

 

 

 

its connection

 

 

 

 

 

 

 

4.

Faulty Control PC board

 

 

 

 

 

 

 

 

 

 

 

 

No control on post flow time

1. Faulty potentiometer R3 or its

 

 

 

 

 

 

 

 

connection

 

 

 

 

 

 

 

2.

Bad connection at P9 of Control

If all recommended possible areas

 

 

of

misadjustment

have

been

 

 

 

PC board

 

 

 

checked and the problem persists,

 

 

 

 

Pre flow & Post flow time too long

1. If an Advanced Control PC board

Contact

your local

Lincoln

Authorized Field Service Facility.

 

 

 

was installed, check setting of

 

 

 

 

 

 

 

 

 

 

 

DIP switch on that board

 

 

 

 

 

 

 

2. Missing plug P3 on Control board

 

 

 

 

 

 

 

 

or bad connection at P3 when an

 

 

 

 

 

 

 

 

Advanced Control PC board is not

 

 

 

 

 

 

 

 

present

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

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 275

Image 33
Contents Precision TIG California Proposition 65 Warnings SafetyElectric Shock can kill Cylinder may explode if damaged Sûreté Pour Soudage a L’Arc Précautions DE SûretéThank You Table of Contents Installation Rated Input Single Phase onlyPrecision TIG Physical Dimensions Recommended Input Wire and Fuse SizesTemperature Ranges Additional Output CapacitySafety Precautions Input and Grounding Connections Work Cable Connection Stick Electrode Cable ConnectionOutput CABLES, Connections and Limitations Figure A.2 TIG Torch ConnectionFigure A.3 Auxiliary Power ConnectionsFigure A.4 Robotic Interface ConnectionProduct Description OperationPipe Thawing Welding SparksRecommended Processes Recommended Processes and EquipmentProcess Limitations Equipment LimitationsFigure B.1 Control Panel Controls and SettingsOperation Advanced Panel Controls Do not USE 4-STEP if Using AN Amptrol RemoteOperation Internal SET UP Controls Stick Welding FeaturesTIG Welding Features Figure B.3 Figure B.4 TIG Weld Cycle Chart Setup Guidelines for TIG Welding with AN AmptrolUsing the Start Pedal Foot Amptrol K870-1 Figure B.5 Recommended Electrode Amperage Ranges Precision TIG Making a TIG Weld with AN AmptrolFactory Installed Options AccessoriesField Installed Options Optional EquipmentSafety Precautions MaintenanceRoutine and Periodic Maintenance Overload ProtectionComponent Access Service ProceduresSpark GAP Adjustment UNDER-COOLER ServiceHOW to USE Troubleshooting Guide TroubleshootingSymptoms Output ProblemsCourse of Action GAS Problems Meter ProblemsHI-FREQ Problems Preset & Output Control Problems TIG Welding Problems Stick 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.