Lincoln Electric UWW-170 manual GAS Flow Problems

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	E-3			TROUBLESHOOTING				E-3
			Observe Safety Guidelines detailed in the beginning of this manual.


	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
	pulled. Fan runs, gas flows and				make sure that the correct drive
	machine has correct open circuit				rolls are installed in the machine.
	voltage (33 VDC maximum) – weld					Contact your local Lincoln
	output.			2.	Check for clogged cable liner or	Authorized Field Service Facility.
					contact tip.
				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
trigger is pulled. Wire feed, weld		and gas hoses.	Contact your local Lincoln
output and fan operate normally.			Authorized Field Service Facility.
	2.	Check gun connection to
		machine for obstruction or leaky
		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 LINCOLN ELECTRIC FIELD SERVICE FACILITY for assistance before you proceed.

SP 170-I

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Contents SP 170-I and UWW-170 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 YouTable of Contents Installation Safety Precautions 2INSTALLATIONA-2Identify and Locate Components Electric Shock can killLimitations Select Suitable LocationOutput Connections StackingWork Cable Installation GUN InstallationConnecting Gun Cable to the SP GAS ConnectionInput Connections Power Input Cable230 50/60 Line Cord ConnectionOperational Features and Controls Design Features AdvantagesOperation General DescriptionWelding Capability Controls and SettingsFriction Brake Adjustment Wire LoadingWelding Operations Sequence of OperationFigure B.4 Making 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 ARCFor Gmaw MIG Process Gmaw MIG Welding ARCProcess Selection Joint Types and Positions Common MetalsFor Fcaw Innershield Process Butt WeldsFillet 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 170-I, 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 Drive Roll Orientation Application ChartOutput Polarity Optional Accessories AccessoriesK464 .035 0.9 mm Innershield Welding Kit K491 .045 1.2 mm Innershield Welding KitInnershield Fcaw Conversion Replacement PartsRoutine Maintenance MaintenanceMaintenance Safety Precautions Configuration of Components in Wire Feeding System GUN and Cable MaintenanceGun Cable Cleaning Contact Tip Cable Liner Drive RollChanging Drive Roll UWW-170 only Component Replacement ProceduresChanging Drive Roll SP 170-I only Fully seat the liner bushing into the con Changing LinerGUN Handle Parts red trigger GUN Handle Parts black triggerHOW to USE Troubleshooting Guide TroubleshootingRecommended Course of Action Problems Possible Areas Symptoms MisadjustmentsGAS Flow Problems Welding Problems Wiring WiringPage New Lessons in Arc Welding How To Read Shop DrawingsNeed Welding Training? $700.00Precaucion Warnung