Lincoln Electric IM767 specifications Troubleshooting Guide, Output Problems

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TROUBLESHOOTING

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TROUBLESHOOTING GUIDE

Observe Safety Guidelines detailed in the beginning of this manual.

	PROBLEMS	POSSIBLE	RECOMMENDED
	(SYMPTOMS)	CAUSE	COURSE OF ACTION

		OUTPUT PROBLEMS
	Major physical or electrical damage	Contact your LOCAL AUTHORIZED
	is evident.	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 (115 vac).
	does NOT operate.
		2. Make certain that power switch is
		in the ON position.

No weld output or wire feed when	Contact your LOCAL AUTHORIZED
gun trigger is pulled. Fan runs and	FIELD SERVICE FACILITY.
gas flows normally.

No weld output when gun trigger is	1.	Arc voltage may be set too low.
pulled. Fan runs, gas flows and
wire feeds normally.	2.	Gun tip may be worn – Replace. Contact your local Authorized Field
			Service Facility.
	3.	Check for correct input voltage to
		machine.
	4.	Gun or work cable may be faulty.

No Wire feed, weld output or gas	1.	Check the circuit breaker located
flow when the gun trigger is pulled -		in the machine’s wire drive com-
Fan operates normally.		partment. Reset if tripped.
	2.	The thermostat may be tripped
		due to overheating. Let machine
		cool. Weld within the duty cycle or
		remove any air obstruction to
		machine.
	3.	Wire feed motor may be over-
		loaded. Correct feeding problem.
	4.	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 AUTHORIZED FIELD SERVICE FACILITY for assistance before you proceed.

WELDMARK 135 PLUS

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Contents Weldmark 135 Plus Safety California Proposition 65 WarningsElectric Shock can kill Welding Sparks can cause fire or explosion IiiPrécautions DE Sûreté Sûreté Pour Soudage a L’ArcPlease Examine Carton and Equipment For Damage Immediately On-Line Product RegistrationTable of Contents Installation Technical Specifications Weldmark 135 PlusIdentify and Locate Components Safety PrecautionsElectric Shock can kill Work Clamp Installation Work Cable InstallationSelect Suitable Location StackingConnecting Gun Cable to the Weldmark 135 Plus GUN InstallationGAS Connection Input Connections Gas Solenoid Inlet FittingInput CableRequirements For Rated Output Code Requirements for Input ConnectionsRequirements For Maximum Output Observe all safety information throughout this manual OperationFumes and Gases can be dangerous Welding Sparks can cause fire or explosionControls and Settings Design Features AdvantagesGeneral Description Welding CapabilityWelding Operations Wire LoadingSequence of Operation Wire Threading Friction Brake Adjustment4OPERATIONB-4 Shielding Gas Making a WeldCleaning Tip And Nozzle Changing Machine Over to Feed Other Wire SizesProcess Guidelines Wire Feed Overload Protection Overload ProtectionOutput Overload Thermal ProtectionLearning to Weld Learning to WeldARC-WELDING Circuit SELF-SHIELDED Fcaw Welding ARCGmaw MIG Welding ARC Process SelectionCommon Metals Joint Types and PositionsFor Gmaw MIG Process For Fcaw Innershield ProcessPenetration Welding In The Vertical PositionFillet Welds Machine SET UP for the SELF-SHIELDED Fcaw Process Welding Techniques for the SELF- Shielded Fcaw ProcessVertical-down Welding Correct Welding PositionCorrect Electrical Stickout ESO Correct Welding SpeedHelpful Hints PracticeMachine SET UP for the Gmaw MIG Process Welding Techniques for the Gmaw MIG ProcessFor the Weldmark 135 PLUS, use Following Troubleshooting Welds To Eliminate a Ropy Convex Bead in order of importanceTo 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 Replacement Parts Innershield Fcaw ConversionMaintenance Maintenance Safety PrecautionsItems Requiring no Maintenance Routine and Periodic MAINTE- NanceGUN and Cable Maintenance Configuration of Components in Wire Feeding SystemFor Magnum 100L GUN Contact Tip Cable Liner Drive RollChanging the Contact TIP Changing Drive RollGUN Handle Parts Changing LinerLiner trim length for gun with red trigger Magnum 100L Troubleshooting HOW to USE Troubleshooting GuideTroubleshooting Guide Output ProblemsProblems Possible Symptoms Cause Recommended Course of ActionGAS Flow Problems Wiring Diagrams SP-135PLUSWIRINGWIRINGDIAGRAMDIAGRAMSWeldmark 135 Plus Precaucion Warnung Manufactured by Lincoln Electric Company