Lincoln Electric IM724 manual Welding Problems

Page 41

E-4

TROUBLESHOOTING

E-4

Observe all Safety Guidelines detailed throughout this manual

PROBLEMS

POSSIBLE AREAS OF

RECOMMENDED

(SYMPTOMS)

MISADJUSTMENT(S)

COURSE OF ACTION

WELDING PROBLEMS

Arc is unstable – Poor starting

1. Check for correct input voltage

to machine – 115vac.

2.

Check for proper electrode

polarity for process.

3.

Check gun tip for wear or dam-

age and proper size – Replace.

If all recommended possible areas

4.

Check for proper gas and flow

of misadjustment have been

rate for process. (For MIG only.)

checked and the problem persists,

5.

Check work cable for loose or

Contact your local

Lincoln

Authorized Field

Service

faulty connections.

Facility.

6.

Check gun for damage or

breaks.

7.

Check for proper drive roll orien-

tation and alignment.

8.

Check liner for proper size.

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.

SP-135T

Image 41

Contents SP-135T California Proposition 65 Warnings SafetyElectric Shock can kill Iii Welding Sparks can cause fire or explosionSûreté Pour Soudage a L’Arc Précautions DE SûretéPlease Examine Carton and Equipment For Damage Immediately Thank YouMaster Table of Contents for ALL Sections Technical Specifications SP-135T InstallationElectric Shock can kill Safety PrecautionsIdentify and Locate Components Select Suitable Location Work Clamp InstallationOutput Connections StackingWork Cable Installation GUN InstallationConnecting Gun Cable to the SP-135T GAS ConnectionFigure A.5 Requirements For Rated Output Input ConnectionsCode Requirements for Input Connections Operation Design FeaturesGeneral Description Recommended ProcessesLimitations Controls and SettingsWelding Capability Sequence of Operation Wire LoadingWelding Operations Wire Threading Friction Brake AdjustmentMaking a Weld Cleaning Tip And NozzleProcess Guidelines Overload Protection Changing Machine Over to Feed Other Wire SizesWelding with Gmaw MIG Learning to Weld Learning to WeldARC-WELDING Circuit SELF-SHIELDED Fcaw Welding ARCProcess Selection Gmaw MIG Welding ARCJoint Types and Positions Common MetalsFor Gmaw MIG Process For Fcaw Innershield ProcessFillet Welds Welding In The Vertical PositionPenetration Welding Techniques for the SELF- Shielded Fcaw Process Machine SET UP for the SELF-SHIELDED Fcaw ProcessVertical-down Welding Correct Welding PositionCorrect Welding Speed Correct Electrical Stickout ESOPractice Helpful HintsWelding Techniques for the Gmaw MIG Process Machine SET UP for the Gmaw MIG ProcessFor the SP-135T, use the following To Eliminate a Ropy Convex Bead in order of importance Troubleshooting WeldsTo Correct Poor Penetration in order of impor- tance To Eliminate Stubbing* in order of importanceProper Gun Handling Application Chart Optional Accessories AccessoriesK586-1 Deluxe Adjustable Gas Regulator Hose Kit K549-1 .035 0.9 mm Innershield Welding KitInnershield Fcaw Replacement Parts Conversion Routine Maintenance MaintenanceMaintenance Safety Precautions Configuration of Components in Wire Feeding System GUN and Cable MaintenanceFor Magnum 100L GUN Contact Tip Cable Liner Drive RollChanging Drive Roll Component Replacement ProceduresChanging the Contact TIP Liner trim length Changing LinerGUN Handle Parts HOW to USE Troubleshooting Guide TroubleshootingRecommended Course of Action Problems Possible Areas Symptoms MisadjustmentsFacility Contact your local Lincoln Authorized Field ServiceWelding Problems SP-135T Wiring Diagram DiagramsSP-135T Precaucion