Lincoln Electric SVM107-B service manual Rotor Removal Procedure

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F-62

F-62

TROUBLESHOOTING & REPAIR

ENGINE/ROTOR REMOVAL AND

REPLACEMENT (continued)

FIGURE F.15 - ENGINE AND ROTOR REMOVED FROM STATOR

2

1	1.	THRU-BOLT
	2.	ROTOR

ROTOR REMOVAL PROCEDURE

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1.To remove the rotor, double check that the engine spark plug wires are disconnect- ed. You will be turning the rotor during this procedure, and this could accidentally cause engine kickback.

2.With an impact wrench, remove the rotor thru-bolt. See Figure F.15. If an impact wrench is not available, use the 5/8” box wrench. Hold the rotor with one hand and shock the wrench with the mallet to loosen the thru-bolt. The thru-bolt has a star wash- er and lock washer, beveled to conform to the rotor shaft. Pull out the thru-bolt.

3.Install the appropriate long thru-bolt (two are provided) supplied with Lincoln Electric Rotor Removal Kit S20788. The slot head must face out. Screw in the bolt with the slot head screw driver until the bolt bottoms out on the engine crankshaft, about 3/4”.

4.Turning it counterclockwise, screw in the left-hand thread rotor removal tool from the kit into the rotor shaft. Support the rotor with one hand and tighten the tool to approxi- mately 50 ft lbs with the torque or impact wrench.

5.If the rotor does not pop off, tighten the rotor removal tool an additional 5 ft lbs. Hold the rotor with one hand until the rotor pops off the engine crankshaft.

HINT: If the rotor does not pop off, hit the end of the rotor removal tool with a hammer.

6.Slide the rotor the rest of the way off the crankshaft. Be careful not to lose the wash- er that fits between the blower fan and the rotor.

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 Output20 B 50 100 150 20050 100 150 200 250 300 350 Output Amps 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 DC Semiautomatic Wire Feed Welding Constant Voltage AC/DC Stick Welding Constant CurrentAC/DC TIG 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 EngineWire Feed Welding Processes Constant Voltage Stick Constant Current WeldingTIG 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 Rotor Voltage Test Test DescriptionMaterials Needed 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 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 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