Lincoln Electric 450 CE manual Visual Inspection, Routine Maintenance, 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.

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See additional warning information throughout this Operator’s Manual

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VISUAL INSPECTION

Clean interior of machine with a low pressure air stream. Make a thorough inspection of all compo- nents. Look for signs of overheating, broken leads or other obvious problems. Many problems can be uncovered with a good visual inspection.

ROUTINE MAINTENANCE

VRD™ Functionality should be checked once per day or once per shift. VRD™ functionality can be verified by the indicator lights on the front of the power source. One of the lights will be illuminated at all times when VRD™ is enabled. No lights will be illuminated when VRD™ is disabled. VRD™ can be verified by cycling power as well. When VRD™ is enabled, the VRD™ indicator lights will illuminate for 5 seconds at power up and one light will remain illuminated.

1.Every 6 months or so the machine should be cleaned with a low pressure airstream. Keeping the machine clean will result in cooler operation and higher reliability. Be sure to clean these areas:

All printed circuit boards

Power switch

Main transformer

Heatsink Fins

Input rectifier

Auxiliary Transformer

Reconnect Switch Area

Fan (Blow air through the rear louvers)

2.Examine the sheet metal case for dents or breakage. Repair the case as required. Keep the case in good con- dition to insure that high voltage parts are protected and correct spacings are maintained. All external sheet metal screws must be in place to insure case strength and electrical ground continuity.

PERIODIC MAINTENANCE

Thermal Protection

Thermostats protect the machine from excessive operating temperatures. Excessive temperatures may be caused by a lack of cooling air or operating the machine beyond the duty cycle and output rating. If excessive operating temperature should occur, the thermostat will disable the machine output. The meter will remain energized during this time. Thermostats are self-resetting once the machine cools sufficiently. If the thermostat shutdown was caused by excessive output or duty cycle and the fan is operating normally, the Power Switch may be left on and the reset should occur within a 15 minute period.

FLEXTEC™ 450 CE

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Contents Flextec 450 CE Safety Depends on YouCalifornia Proposition 65 Warnings SafetyElectric Shock can kill Iii Welding and Cutting Sparks can Cause fire or explosionSûreté Pour Soudage a L’Arc Précautions DE SûretéOn-Line Product Registration Please Examine Carton and Equipment For Damage ImmediatelyTAbLE of Contents Conductor InstallationTechnical Specifications Flextec 450 CE VoltageOCV Uo OCV Ur Model Height Width Depth WeightOperating Temperature Range Storage Temperature Range Process Output Range AmperesVRD Voltage Reduction Device Safety PrecautionsStacking Environmental LimitationsInput Connection Input Fuse and Supply Wire ConsiderationsCAbLE Connections PIN Remote Control ConnectorFunction Pin Wiring PIN Connector for Wire FeederTAbLE A.1 Output CAbLE Guidelines Recommended Electrode and Work CAbLE SIzES for ARC WeldingControl CAbLE Connections General GuidelinesOperation Safety PrecautionsInput Power OFF High Temperature Ground Design FeaturesProduct Description ProtectiveProcess Limitations Recommended Processes EquipmentEquipment Limitations Recommended ProcessesFigure b.1 Case Front Control DescriptionsWeld Controls and Displays Common Welding ProceduresPOWER-UP Sequence Case bACK ControlVRD Indicator Lights VRD Voltage Reduction Device Indicator LightWeld Terminals On/Remote BASIC Modes of OperationMmaw GtawCV-INNERSHIELD CV-GASTIG Options AccessoriesOptions / Accessories General OptionsVisual Inspection MaintenanceRoutine Maintenance PERIODIC MAINTENANCETROUbLESHOOTING Cause Recommended Course of Action PRObLEMSSymptoms POSSIbLEError Description Corrective Action Code# Error Codes for the Flextec 450 CEDiagrams Dimension Print Flextec 450 CE Precaucion Warnung