Lincoln Electric SVM168-B service manual Troubleshooting Guide

Page 48

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F-8	TROUBLESHOOTING & REPAIR				F-8

Observe Safety Guidelines			TROUBLESHOOTING GUIDE
detailed in the beginning of this manual.
PROBLEMS		POSSIBLE AREAS OF	RECOMMENDED
(SYMPTOMS)		MISADJUSTMENT(S)	COURSE OF ACTION

		OUTPUT PROBLEMS
No DC welding output. AC welding		1. Make sure the Polarity Switch is	1. Perform the Output Bridge Test .
output and auxiliary power is nor-		in the proper position and is	2.	Check the Choke (L1),	the
mal.		“seated” correctly.	2.	Check the Choke (L1),	the
mal.		“seated” correctly.		Polarity Switch (S2) and associ-
				Polarity Switch (S2) and associ-
		2. Make sure the electrode and		ated wires for loose or faulty
		polarity are correct for the		connections. Check the choke
		process being used.		winding for continuity and test
				to be sure it is NOT grounded
				the choke iron.

No AC welding output. DC welding		1. Make sure the Polarity Switch is	1. Check the operation of the
output and auxiliary power is nor-		in the proper position and is		Polarity Switch (S2). Also check
mal.		“seated” correctly.		the associated wires for loose
		2. Make sure the electrode is cor-		or faulty connections.	See
		2. Make sure the electrode is cor-		Wiring Diagram .
		rect for the process being used.		Wiring Diagram .
		rect for the process being used.
		3. Make sure the welding cables	2.	Check for continuity from lead
		3. Make sure the welding cables		“S2” to lead “E” located in the
		are not coiled or too long.		“S2” to lead “E” located in the
		are not coiled or too long.		main stator. See Wiring Dia-
				main stator. See Wiring Dia-
				gram .

CAUTION

If for any reason you do not understand the test procedures or are unable to perform the test/repairs safely, con- tact the Lincoln Electric Service Department for electrical troubleshooting assistance before you proceed. Call 1-888-935-3877.

RANGER® 10,000 & RANGER® 10,000 PLUS

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Contents Ranger 10,000 /10,000 Plus Safety Powered equipmentFor Engine ARC Rays can burn Fumes and GasesWelding and Cutting Sparks can cause fire or Explosion Cylinder may explode If damagedIii Précautions DE Sûreté Master Table of Contents for ALL Sections Table of Contents Installation SectionSection A-1 Installation Height Width Depth WeightHorsepower Operating Speed RPM Safety Precautions Spark ArresterMachine Grounding TowingPRE-OPERATION Service GasolineVehicle Mounting Can cause fire or explosionWelding Output Cables Total Combined Length of Electrode and Work CablesAngle of Operation LiftingConnection of Lincoln Electric Wire Feeders InstructionsStacking Welder OperationAuxiliary Power 120/240 Volt Dual Voltage ReceptacleDuplex Receptacles Motor StartingThese Devices Without Additional Resistive Type Loads Not USE These Devices With a Ranger 10,000Simultaneous Welding and Power Standby Power ConnectionsFigure A.1 Ranger 10,000 & Ranger 10,000 Plus Operation Section Section B-1Operation Engine Switch OperationWelder Controls Function and Operation Polarity Switch Range SwitchKohler Honda Robin / Subaru 20 H.P. Command Control DialSTARTING/SHUTDOWN Instructions BREAK-IN PeriodStarting the Engine Stopping the EngineWire Feed Welding Processes Constant Voltage Stick Constant Current WeldingTIG Constant Current Welding Start Switch Wire FEED, LN-15 Summary of Welding ProcessesAccessories Section Section C-1Accessories Optional Equipment Field InstalledRecommended Equipment StickTIG Welding Plasma CuttingRanger 10,000 & Ranger 10,000 Plus Maintenance Section Section D-1Maintenance Safety PrecautionsKohler Honda AIR Cleaner and Other Maintenance OIL Filter ChangeEngine Adjustments BatteryOverspeed is Hazardous Slip RingsPre-Cleaner Oil FilterAir Filter ElementFigure D.1 Major Component Location Theory of Operation Section Section E-1Theory of Operation BATTERY, STARTER, ENGINE, ROTOR, STATOR, and Idler Solenoid Theory of OperationRotor Field Feedback and Auxiliary Power Figure E.3 Rotor Field Feedback and Auxiliary PowerWeld WINDING, REACTOR, Range Switch Figure E.4 Weld WINDING, REACTOR, and Range SwitchOutput BRIDGE, Choke Polarity SWITCH, and Output Terminals Ranger 10,000 & Ranger 10,000 Plus Troubleshooting & Repair Section Section F-1Troubleshooting & Repair HOW to USE Troubleshooting GuidePC Board Troubleshooting Procedures Electric ShockTroubleshooting Guide Output ProblemsOutput Problems Field Winding Voltage Test Adjustment Test Troubleshooting Guide Output Problems Engine Problems Make sure the leads are looped Charging Circuit Test Welding Problems Ranger 10,000 & Ranger 10,000 Plus Rotor Voltage Test Test DescriptionMaterials Needed Test Procedure Rotor Resistance Test Rotor Resistance Test Figure F.2 Location of Rotor Slip RingsTroubleshooting & Repair Ranger 10,000 & Ranger 10,000 Plus Auxiliary and Field Winding Test Auxiliary and Field Winding Test To test the 115 VAC windingTo test the 230 VAC winding To test the field winding Ranger 10,000 & Ranger 10,000 Plus Output Rectifier Bridge Test 26TROUBLESHOOTING & REPAIRF-26 Output Rectifier Bridge TestFigutpure F.4 Locationctifof Output Rectifier Leads Charging Circuit Test Charging Circuit Test Figure F.5 Location of Voltage RegulatorEngine Throttle Adjustment Test Engine Throttle Adjustment Test Figure F.6 Blower Paddle Marked for STROBE-TACH MethodFigure F.7 Oscilloscope Method Scope Settings Normal Open Circuit Voltage Waveform 115 VAC SupplyHigh Idle no Load Output Control AT Maximum Typical DC Weld Output Waveform CV Mode Machine LoadedMachine Loaded to 200 Amps AT 20 VDC Typical DC Weld Output Waveform CC Mode Machine Loaded to 200 Amps AT 26 VDCTypical AC Weld Output Waveform Machine Loaded to 225 Amps AT 25 VDCAbnormal Open Circuit Weld Voltage Waveform CV Mode Abnormal Open Circuit DC Weld Voltage Waveform Normal Open Circuit Weld Voltage Waveform CV Mode Normal Open Circuit DC Weld Voltage Waveform CC Mode Normal Open Circuit AC Weld Voltage Waveform Ranger 10,000 & Ranger 10,000 Plus Brush Removal and Replacement DescriptionBrush Removal and Replacement ProcedureSlip Rings Figure F.9 Brush LEADS/BRUSHES Retained with Cable TIERanger 10,000 & Ranger 10,000 Plus Printed Circuit Board Removal Replacement Printed Circuit Board Removal and Replacement Figure F.10 Printed Circuit Board LocationReplacement Printed Circuit Board RemovalRanger 10,000 & Ranger 10,000 Plus Output Rectifier Bridge Removal Replacement Remove the case top, then reinstall the fuel cap Output Rectifier Bridge RemovalSection TOC Ranger 10,000 & Ranger 10,000 Plus ENGINE/ROTOR Removal and Replacement InstructionsENGINE/ROTOR Removal Figure F.12 Component LOCATIONS, ENGINE/ROTOR RemovalEngine and Rotor Removal Procedure Rotor Removal Procedure Figure F.13 Engine and Rotor Removed from Stator THRU-BOLTReplacement KIT S20788 Reassembly ProcedureRetest After Repair Electrical Diagrams Section Electrical DiagramsSection G-1 Electrical Diagrams Wiring Diagram Code 11041 only -M20226Wiring Diagram Code 11095 only M20301 Ranger 10,000 HondaRanger 10,000 Wiring Diagram Code 11398 M21269 Ranger 10,000 Plus Schematic Entire Machine Codes 11395 and 11398 L13105 L13105Schematic Entire Machine CDE 11394 L13103 L13103Schematic Entire Machine Code 11095 & 11253 only L12257 Schematic Entire Machine Code 11151 only L12249-1 L12249Electrical Diagrams Electrical Diagrams