Lincoln Electric SVM107-B service manual Engine Problems

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F-10

 

 

 

 

F-10

TROUBLESHOOTING & REPAIR

 

 

Observe Safety Guidelines

 

 

TROUBLESHOOTING GUIDE

detailed in the beginning of this manual.

 

 

 

 

 

 

 

 

PROBLEMS

POSSIBLE AREAS OF

RECOMMENDED

 

(SYMPTOMS)

MISADJUSTMENT(S)

COURSE OF ACTION

 

 

 

 

 

 

 

 

 

ENGINE PROBLEMS

 

 

 

Engine will not idle down to low

1.

Make sure the Idler Switch (S4)

1. With the Idler Switch (S4) in the

speed. Machine has normal weld

 

is in the “Auto” position.

“Auto” position, check for the

output and auxiliary power.

2.

Make sure there is NOT an

presence

of 12VDC at

leads

 

#213 to

#215 located

at the

 

 

external load on the weld termi-

 

 

Idler Solenoid. If 12VDC is pre-

 

 

nals nor the auxiliary power

 

 

sent and

the Idler Solenoid is

 

 

receptacles.

 

 

not activating, then the solenoid

 

 

 

 

 

 

may be faulty or there is a

 

 

 

mechanical restriction prevent-

 

 

 

ing it from functioning.

 

 

 

 

2. If there is NOT 12VDC at leads

 

 

 

#213 to #215, then test for

 

 

 

12VDC from lead #213 to

 

 

 

ground (lead #5). See Wiring

 

 

 

Diagram. If 12VDC is present,

 

 

 

then check lead #215 for conti-

 

 

 

nuity (zero ohms) from the Idler

 

 

 

Solenoid to the Printed Circuit

 

 

 

Board plug 3J1. If lead #215 is

 

 

 

OK, then the Printed Circuit

 

 

 

Board may be faulty. Replace.

 

 

 

3. If there is NOT 12VDC from lead

 

 

 

#213 to ground (lead #5), then

 

 

 

check the Idler Switch (S4) for

 

 

 

proper operation and as-

 

 

 

sociated wires for loose or

 

 

 

faulty connections.

 

 

 

 

 

 

 

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 1-800-833-9353 (WELD).

RANGER 8

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Contents Rangertm Safety Electric Shock can kill Welding Sparks can cause fire or explosion IiiPrécautions DE Sûreté Master Table of Contents for ALL Sections Table of Contents Installation Section Auxiliary Power Welding Output50 100 150 200 250 300 350 Output Amps 20 B50 100 150 200 Installation Instructions AWG Battery ConnectionsOil FuelAngle of Operation Ranger Connection of the LN-7 to the RangerWelder Output Constant CurrentDuplex Receptacles Motor StartingElectrical Device USE with the Ranger Type Common Electrical Devices Possible ConcernsAuxiliary Power While Welding Standby Power ConnectionsConnection of Ranger 8 to Premises Wiring Figure A.1Ranger Table of Contents Operation Section AC/DC TIG Welding Constant Current DC Semiautomatic Wire Feed Welding Constant VoltageAC/DC Stick Welding Constant Current Range Switch settings in the STICK/TIG mode Control SwitchProvides a fine welding current adjustment within Welding voltage control with the Range switch setStarting/Shutdown Instructions Stopping the EngineTIG Constant Current Welding Wire Feed Welding Processes Constant VoltageStick Constant Current Welding Summary of Welding Processes Stick AutoSection C-1Section C-1 Accessories Recommended Equipment Ranger Table of Contents Maintenance Engine OIL Refill Capacities Routine MaintenanceEngine OIL Change Kohler Onan HondaOIL Filter Change Pre-Cleaner Engine AdjustmentsEngine Maintenance Parts Slip RingsFigure D.1 Major Component Locations Ranger Table of Contents Theory of Operation Section Theory of Operation Rotor Field Feedback and Auxiliary Power Weld WINDING, REACTOR, Range Switch Output BRIDGE, Choke Polarity SWITCH, and Output Terminals Ranger Table of Contents Trouble Shooting & Repair Section Troubleshooting & Repair HOW to USE Troubleshooting GuideDevices PC board can be damaged by static electricityStatic-Sensitive Handle only atTroubleshooting Guide Output ProblemsObserve Safety Guidelines Detailed in the beginning of this manualTroubleshooting & Repair Troubleshooting & Repair Troubleshooting Guide Troubleshooting & Repair Engine Problems Troubleshooting & Repair Troubleshooting & Repair Welding Problems Ranger Materials Needed Rotor Voltage TestTest Description Test Procedure Rotor Resistance Test Rotor Resistance Test Troubleshooting & Repair Ranger Auxiliary and Field Winding Test To test the 115 VAC winding To test the 230 VAC windingTo test the field winding Ranger Output Rectifier Bridge Test Output Rectifier Bridge Test Charging Circuit Test Charging Circuit Test Engine Throttle Adjustment Test Engine Throttle Adjustment Test Engine Throttle Adjustment Test Oscilloscope Method High Idle no Load Output Control AT Maximum Scope SettingsNormal Open Circuit Voltage Waveform 115 VAC Supply Typical DC Weld Output Waveform CV Mode Machine LoadedTypical 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 Brush Removal and Replacement DescriptionBrush Removal and Replacement ProcedureSlip Rings Figure F.10 Brush LEADS/BRUSHES Retained with Cable TIERanger Field Capacitor AND/OR Rectifier Bridge Removal Replacement Replacement Field Capacitor AND/OR Rectifier Bridge RemovalProcedure Rectifier Bridge Removal and Replacement Ranger Printed Circuit Board Removal Replacement Printed Circuit Board Removal and Replacement ProcedurePrinted Circuit Board Removal Ranger Output Rectifier Bridge Removal Replacement Remove the case top, then reinstall the fuel cap Output Rectifier Bridge RemovalSection TOC Ranger ENGINE/ROTOR Removal and Replacement InstructionsENGINE/ROTOR Removal Figure F.14 Component LOCATIONS, ENGINE/ROTOR RemovalEngine and Rotor Removal Procedure Rotor Removal Procedure Figure F.15 Engine and Rotor Removed from StatorReplacement KIT S20788 Reassembly ProcedureRetest After Repair Table of Contents Diagrams Section Dimension Dimension Print Ranger 8 Honda & Kohler RANGER8Diagrams Connection of Ranger 8 to LN-7 & K240 Contactor KITElectrical Diagrams Wiring Diagram Onan NON CSA ModelK1418-2 Ranger 8 Onan CSA Version Wiring Diagram Wiring Diagram Onan CSA ModelK1419-1 Ranger 8 Kohler Wiring Diagram Wiring Diagram Kohler NON CSA ModelK1419-2 Ranger 8 Kohler CSA Wiring Diagram Wiring Diagram Kohler CSA ModelK2160-1 Ranger 8 Honda CSA Wiring Diagram Schematic IDLER/CONTROL PC Board 16482PC Board Assembly IDLER/CONTROL SVM Error Reporting Form
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