Lincoln Electric 170I Troubleshooting Guide, Problems Possible Areas Symptoms Misadjustments

Page 39

E-2		TROUBLESHOOTING		E-2

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	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. See
does NOT operate.		Installation section, “Electrical
		Connections”.
	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.
	3.	Check Gun Trigger connections.
		See Installation section.

RECOMMENDED COURSE OF ACTION

If all recommended possible areas of misadjustments have been checked and the problem persists, contact your local Liquid Arc Authorized Field Service Facility.

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 LIQUID ARC FIELD SERVICE FACILITY for assistance before you proceed.

Handymig 170i

Image 39

Contents Handymig For Engine powered equipment SafetyElectric and Magnetic Fields may be dangerous Iii Electric Shock can killARC Rays can burn Fumes and Gases can be dangerousWelding Sparks can cause fire or explosion Cylinder may explode if damagedAssessment of Area Instructions for ELECTRO- Magnetic CompatibilityPlease Examine Carton and Equipment For Damage Immediately Table of Contents Section F ViiiSection D Section ETechnical Specifications Handymig InstallationIdentify and Locate Components Safety PrecautionsStacking Work Clamp InstallationSelect Suitable Location Output ConnectionsGAS Connection GUN InstallationWork Cable Installation Connecting Gun Cable to the HandymigFigure A.5 Input ConnectionsLine Cord Connection Electrical Input Connection For Rated OutputGeneral Description Design Features AdvantagesOperational Features and Controls OperationControls and Settings Welding CapabilityLimitations Wire Loading Welding OperationsSequence of Operation Figure B.4 Wire ThreadingCleaning Tip And Nozzle Process GuidelinesMaking a Weld Shielding Gas Changing Machine Over to Feed Other Wire SizesWelding with Gmaw MIG Welding with Fcaw InnershieldLearning to Weld Overload ProtectionLearning to Weld Gmaw MIG Welding ARC SELF-SHIELDED Fcaw Welding ARCProcess Selection Common MetalsJoint Types and Positions Welding 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 Handymig 170i, use the following To Eliminate Stubbing* in order of importance Troubleshooting WeldsTo Eliminate a Ropy Convex Bead To Correct Poor Penetration in order of impor- tanceProper Gun Handling Application Chart Maintenance Routine MaintenanceGUN and Cable Maintenance Component Replacement Procedures Changing the Contact TIPChanging Drive Roll Changing Liner GUN Handle PartsLiner trim length Ground Test Procedure HOW to USE Troubleshooting Guide 1TROUBLESHOOTINGE-1Recommended Course of Action TroubleshootingTroubleshooting Guide Problems Possible Areas Symptoms MisadjustmentsContact your local Liquid Arc Authorized Field Service FacilityWelding Problems Handymig 170i Wiring Diagram Code Wiring DiagramsPrecaucion Warnung Copyright 2000 Lincoln Global Inc