Lincoln Electric 170I manual Contact your local Liquid Arc, Authorized Field Service Facility

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			TROUBLESHOOTING		E-3
	E-3		TROUBLESHOOTING		E-3

Observe Safety Guidelines

detailed in the beginning of this manual.

TROUBLESHOOTING GUIDE

PROBLEMS	POSSIBLE AREAS OF			RECOMMENDED
(SYMPTOMS)	MISADJUSTMENT(S)			COURSE OF ACTION

		FEEDING PROBLEMS
No wire feed when gun trigger is	1.	If the wire drive motor is running		If all recommended possible areas
pulled. Fan runs, gas flows and		make sure that the correct drive		If all recommended possible areas
machine has correct open circuit		rolls are installed in the machine.		of misadjustments have been
voltage (33 vcd maximum) – weld				checked and the problem persists,
output.	2.	Check for clogged cable liner or		contact your local Liquid Arc
		contact tip.		Authorized Field Service Facility.
	3.	Check for proper size cable liner
		and contact tip.

PROBLEMS		POSSIBLE AREAS OF		RECOMMENDED
(SYMPTOMS)		MISADJUSTMENT(S)		COURSE OF ACTION

			GAS FLOW PROBLEMS
Low or no gas flow when gun		1.	Check gas supply, flow regulator	If all recommended possible areas
trigger is pulled. Wire feed, weld			and gas hoses.	of misadjustments have been
output and fan operate normally.		2.	Check gun connection to	checked and the problem persists,
		2.	Check gun connection to	contact your local Liquid Arc
			machine for obstruction or leaky	Authorized Field Service Facility.
			seals.

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 LIQUID ARC FIELD SERVICE FACILITY for assistance before you proceed.

Handymig 170i

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Contents Handymig Safety For Engine powered equipmentElectric and Magnetic Fields may be dangerous Electric Shock can kill ARC Rays can burnFumes and Gases can be dangerous IiiCylinder may explode if damaged Welding Sparks can cause fire or explosionInstructions for ELECTRO- Magnetic Compatibility Assessment of AreaPlease Examine Carton and Equipment For Damage Immediately Table of Contents Viii Section DSection E Section FInstallation Technical Specifications HandymigSafety Precautions Identify and Locate ComponentsWork Clamp Installation Select Suitable LocationOutput Connections StackingGUN Installation Work Cable InstallationConnecting Gun Cable to the Handymig GAS ConnectionInput Connections Figure A.5Electrical Input Connection For Rated Output Line Cord ConnectionDesign Features Advantages Operational Features and ControlsOperation General DescriptionWelding Capability Controls and SettingsLimitations Welding Operations Wire LoadingSequence of Operation Wire Threading Figure B.4Process Guidelines Cleaning Tip And NozzleMaking a Weld Changing Machine Over to Feed Other Wire Sizes Welding with Gmaw MIGWelding with Fcaw Innershield Shielding GasOverload Protection Learning to WeldLearning to Weld SELF-SHIELDED Fcaw Welding ARC Gmaw MIG Welding ARCCommon Metals Process SelectionJoint Types and Positions Penetration 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 Handymig 170i, use the following Troubleshooting Welds To Eliminate a Ropy Convex BeadTo Correct Poor Penetration in order of impor- tance To Eliminate Stubbing* in order of importanceProper Gun Handling Application Chart Routine Maintenance MaintenanceGUN and Cable Maintenance Changing the Contact TIP Component Replacement ProceduresChanging Drive Roll GUN Handle Parts Changing LinerLiner trim length Ground Test Procedure 1TROUBLESHOOTINGE-1 HOW to USE Troubleshooting GuideTroubleshooting Troubleshooting GuideProblems Possible Areas Symptoms Misadjustments Recommended Course of ActionAuthorized Field Service Facility Contact your local Liquid ArcWelding Problems Wiring Diagrams Handymig 170i Wiring Diagram CodePrecaucion Warnung Copyright 2000 Lincoln Global Inc