Lincoln Electric IM724 manual Problems Possible Areas Symptoms Misadjustments

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E-2		TROUBLESHOOTING		E-2

		Observe all Safety Guidelines detailed throughout this manual

PROBLEMS	POSSIBLE AREAS OF
(SYMPTOMS)	MISADJUSTMENT(S)
		OUTPUT PROBLEMS
Major physical or electrical damage	None
is evident.	Contact your local Authorized Field
	Service Facility.

No wire feed, weld output or gas	1.	Make sure correct voltage is
flow when gun trigger is pulled. Fan		applied to the machine (115vac).
does NOT operate.	2.	Make certain that power switch
	2.	Make certain that power switch
		is in the ON position.
	3.	Make sure circuit breaker inside
		wire drive compartment is reset.

No wire feed, weld output or gas	1.	The thermostat may be tripped
flow when gun trigger is pulled Fan		due to overheating. Let machine
operates normally.		cool. Weld at lower duty cycle.
	2.	Check for obstructions in air
		flow. Check Gun Trigger connec-
		tions. See Installation section.

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.

3. Gun trigger may be faulty.

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

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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 InstallationSafety Precautions Identify and Locate ComponentsElectric Shock can kill Stacking Work Clamp InstallationSelect Suitable Location Output ConnectionsGAS Connection GUN InstallationWork Cable Installation Connecting Gun Cable to the SP-135TFigure A.5 Input Connections Code Requirements for Input ConnectionsRequirements For Rated Output Recommended Processes Design FeaturesOperation General DescriptionControls and Settings Welding CapabilityLimitations Wire Loading Welding OperationsSequence of Operation Wire Threading Friction Brake AdjustmentCleaning Tip And Nozzle Process GuidelinesMaking a Weld Changing Machine Over to Feed Other Wire Sizes Welding with Gmaw MIGOverload Protection SELF-SHIELDED Fcaw Welding ARC Learning to WeldLearning to Weld ARC-WELDING CircuitProcess Selection Gmaw MIG Welding ARCFor Fcaw Innershield Process Common MetalsJoint Types and Positions For Gmaw MIG ProcessWelding In The Vertical Position PenetrationFillet Welds Correct Welding Position Machine SET UP for the SELF-SHIELDED Fcaw ProcessWelding Techniques for the SELF- Shielded Fcaw Process Vertical-down WeldingCorrect 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 Stubbing* in order of importance Troubleshooting WeldsTo Eliminate a Ropy Convex Bead in order of importance To Correct Poor Penetration in order of impor- tanceProper Gun Handling Application Chart K549-1 .035 0.9 mm Innershield Welding Kit AccessoriesOptional Accessories K586-1 Deluxe Adjustable Gas Regulator Hose KitInnershield Fcaw Replacement Parts Conversion Maintenance Maintenance Safety PrecautionsRoutine Maintenance Contact Tip Cable Liner Drive Roll GUN and Cable MaintenanceConfiguration of Components in Wire Feeding System For Magnum 100L GUNComponent Replacement Procedures Changing the Contact TIPChanging Drive Roll Changing Liner GUN Handle PartsLiner trim length 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