Lincoln Electric SP-255 2TROUBLESHOOTING, Troubleshooting Guide, Recommended Course of Action

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E-2TROUBLESHOOTING

TROUBLESHOOTING GUIDE

Observe Safety Guidelines detailed in the beginning of this manual.

 

 

 

 

 

 

 

PROBLEMS

 

 

POSSIBLE AREAS OF

 

 

(SYMPTOMS)

 

 

MISADJUSTMENT(S)

 

 

 

 

 

OUTPUT PROBLEMS

 

 

Major physical or electrical damage

 

 

Contact your LOCAL LINCOLN

 

 

is evident.

 

 

AUTHORIZED FIELD SERVICE

 

 

 

 

 

FACILITY.

 

 

 

 

 

 

 

 

There is no wire feed or open

 

 

1. The gun trigger or cable may be

 

 

circuit voltage when the gun trigger

 

 

faulty. check or replace gun

 

 

is pulled. The LCD display is “ON”

 

 

assembly..

 

 

indicating input power to the

 

 

 

 

 

SP-255..

 

 

2. The thermal protection circuit

 

 

 

 

 

may be activated. Allow the

 

 

 

 

 

machine to cool and then reduce

 

 

 

 

 

the duty cycle and or wire feed

 

 

 

 

 

speed.

 

 

 

 

 

3. Make sure input voltage is

 

 

 

 

 

correct and matches nameplate

 

 

 

 

 

rating and reconnect panel

 

 

 

 

 

configuration.

 

 

 

 

 

 

 

 

Output voltage and wire feed is

 

 

1. Remove gun assembly from

 

 

present when gun trigger is not

 

 

machine. If problem is solved

 

 

pulled (not activated).

 

 

gun assembly is faulty. Repair or

 

 

 

 

 

replace.

 

 

 

 

 

2. If problem persists when gun

 

 

 

 

 

assembly is removed from the

 

 

 

 

 

machine, then the problem is

 

 

 

 

 

within the SP-255.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

RECOMMENDED COURSE OF ACTION

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 AUTHORIZED LINCOLN ELECTRIC FIELD SERVICE FACILITY for assistance before you proceed.

IDEALARC SP-255

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Contents Safety Depends on You Idealarc SP-255Safety California Proposition 65 WarningsElectric Shock can kill Welding Sparks can cause fire or explosion IiiPrécautions DE Sûreté Sûreté Pour Soudage a L’ArcThank You Master Table of Contents for ALL Sections Section F Section DSection E AppendixINSTALLATIONA-1 Technical Specifications Idealarc SP-255Input Power and Grounding Connections 2INSTALLATIONSafety Precautions Uncrating the SP-255Output Polarity Connection INSTALLATIONA-3GUN and Cable Installation 4INSTALLATION Shielding GASOPERATIONB-1 Fumes and Gases can be dangerousWelding Capability 2OPERATIONRecommended Processes and Equipment LimitationsOPERATIONB-3 Start Mode SelectionsProcess WIRE/GAS KEY Auto KEY Procedure Keys4OPERATION Typical Auto KEY Press SequencesOPERATIONB-5 Memory KeysTypical Memory Number KEY Press Sequence Timer Keys6OPERATION Spot KEYGUN Switch Keys OPERATIONB-78OPERATION Typical Toggle KEY Press SequenceStep Trigger Interlock Keys Using 4-STEP Trigger Interlock FunctionOPERATIONB-9 Typical Activate KEY Press SequenceProcedure for Changing Drive Roll GUN SwitchesWire Drive Roll Wire Reel LoadingTo Start the Welder Idle Roll Pressure SettingOPERATIONB-11 Feeding ElectrodeMaking AN Auto Mode Weld 12OPERATIONOPERATIONB-13 14OPERATION Wire Feed Overload ProtectionExplanation of Prompting and Error Messages Welding Thermal Overload ProtectionOPERATIONB-15 Operation ACCESSORIESC-1 2ACCESSORIES ACCESSORIESC-3 Disabling Spool GUNIdealarc SP-255 Cable Cleaning MAINTENANCED-1Safety Precautions Routine Maintenance2MAINTENANCE Liner Removal ReplacementMagnum 250SP GUN Parts and Accessories MAINTENANCED-3GUN Handle Disassembly Idealarc SP-255 TROUBLESHOOTINGE-1 HOW to USE Troubleshooting GuideProblems Possible Areas Symptoms Misadjustments 2TROUBLESHOOTINGTroubleshooting Guide Authorized Field Service FacilityTROUBLESHOOTINGE-3 Contact your local Lincoln 4TROUBLESHOOTINGAuthorized Field Service Facility TROUBLESHOOTINGE-5 Function Problems6TROUBLESHOOTING Contact your local Lincoln Authorized Field Service FacilityWiring Diagrams SP-255 Wiring Diagram L9688 Dual VoltageWiring Diagrams Dimension Print Page Page Page Page How To Read Shop Drawings $700.00Precaucion Warnung Limited Warranty