Lincoln Electric SVM107-B service manual Engine and Rotor Removal Procedure

Page 101

Master TOC

F-61

F-61

TROUBLESHOOTING & REPAIR

ENGINE/ROTOR REMOVAL

AND REPLACEMENT (continued)

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ENGINE AND ROTOR REMOVAL PROCEDURE

1.Refer to Figure F.14 for component loca- tions.

2.Remove the engine spark plug wires.

3.With the 5/16” nut driver, remove the 6 sheet metal screws from the case top.

4.Remove the rubber gasket (cover seal) from the lift bail.

5.Remove the fuel cap. The rubber gasket for the fill tube will come off with the case top.

6.Remove the case top, the reinstall the fuel cap.

7.WIth the 5/16” nut driver, remove the 5 screws holding the right case side and the 5 screws holding the left case side.

8.Remove the case sides by lifting up and out.

9.WIth the 3/8” wrench, remove the battery cover.

10.Disconnect the negative battery cable, then the positive battery cable. BE SURE TO DISCONNECT THE NEGATIVE BAT- TERY CABLE FIRST. Remove the battery and set it aside.

11.With the diagonal cutters, cut the cable ties around the leads from the starter sole- noid and disconnect the leads. Remove lead 209A from the harness bundle.

12.Disconnect the large black plug in front of the fuel tank spout.

13.With the 3/8” wrench, remove the cowling covers at the rear on the stator, both sides of the machine.

14.WIth the 3/8” wrench, remove the two screws that hold the vertical fan baffle in place. Slide the baffle forward toward the rectifier bridge heat sink assembly.

15.Hold the rotor shaft with locking pliers and unscrew the blower fan. Turn the fan counterclockwise. You do not need to remove the fan from the machine, but be sure it is completely unscrewed from the rotor shaft.

15.With the 1/4” nut driver, disconnect the engine choke cable from the engine. Mark the location of the retainer for reassembly. The other end can remain connected.

16.Disconnect the idle linkage by unsnapping the plastic clip at the engine end of the idler rod. Snap the clip back onto the rod to avoid losing it; remove the rod for reassembly.

17.Disconnect the fuel line from the fuel tank. Plug the hose and also plug the connec- tion at the fuel tank to prevent the escape of gasoline fumes.

18.Cut the cable ties and remove leads 224C and 210 from the oil pressure switch.

19.With the 9/16” wrenches, remove the ground lead from the right engine foot mounting bolt.

20.With the 7/16” wrench, remove the brush holder bracket and leads #219 & 200A from the stator frame.

20A. (For Onan Engine only) with a 1/2” wrench remove the muffler support bolt.

21.Support the engine with a chain hoist. Lift bails are provided on the top of the engine for this purpose.

22.With the 9/16” wrench, remove the right and left engine foot mounting bolts.

23.With the 9/16” wrench, remove the four bolts that hold the stator to the engine. There is one lock washer per bolt.

24.With the chain hoist, unweight the engine gently. Use a pry bar to carefully pry between the engine and the stator frame in order to unseat the bearing on the end of the rotor shaft. Separate the engine and rotor from the stator frame, supporting the rotor by hand to prevent damage to the rotor core.

25.Move the engine and rotor assembly to a bench. The engine is off balance with the rotor still attached; therefore, support the end of the rotor with a wooden two-by- four before unhooking the chain hoist.

RANGER 8

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Contents Rangertm Safety Electric Shock can kill Iii Welding Sparks can cause fire or explosionPrécautions DE Sûreté Master Table of Contents for ALL Sections Table of Contents Installation Section Welding Output Auxiliary Power50 100 150 200 250 300 350 Output Amps 20 B50 100 150 200 Installation Instructions Oil Battery ConnectionsAWG FuelAngle of Operation Welder Output Connection of the LN-7 to the RangerRanger Constant CurrentMotor Starting Duplex ReceptaclesType Common Electrical Devices Possible Concerns Electrical Device USE with the RangerStandby Power Connections Auxiliary Power While WeldingFigure A.1 Connection of Ranger 8 to Premises WiringRanger Table of Contents Operation Section AC/DC TIG Welding Constant Current DC Semiautomatic Wire Feed Welding Constant VoltageAC/DC Stick Welding Constant Current Provides a fine welding current adjustment within Control SwitchRange Switch settings in the STICK/TIG mode Welding voltage control with the Range switch setStopping the Engine Starting/Shutdown InstructionsTIG Constant Current Welding Wire Feed Welding Processes Constant VoltageStick Constant Current Welding Stick Auto Summary of Welding ProcessesSection C-1Section C-1 Accessories Recommended Equipment Ranger Table of Contents Maintenance Engine OIL Change Routine MaintenanceEngine OIL Refill Capacities Kohler Onan HondaOIL Filter Change Engine Maintenance Parts Engine AdjustmentsPre-Cleaner 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 HOW to USE Troubleshooting Guide Troubleshooting & RepairStatic-Sensitive PC board can be damaged by static electricityDevices Handle only atOutput Problems Troubleshooting GuideDetailed in the beginning of this manual Observe Safety GuidelinesTroubleshooting & 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 230 VAC winding To test the 115 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 Machine Loaded Typical DC Weld Output Waveform CV ModeMachine Loaded to 200 Amps AT 26 VDC Typical DC Weld Output Waveform CC ModeMachine Loaded to 225 Amps AT 25 VDC Typical AC Weld Output WaveformAbnormal 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 Description Brush Removal and ReplacementProcedure Brush Removal and ReplacementFigure F.10 Brush LEADS/BRUSHES Retained with Cable TIE Slip RingsRanger Field Capacitor AND/OR Rectifier Bridge Removal Replacement Field Capacitor AND/OR Rectifier Bridge Removal ReplacementProcedure Rectifier Bridge Removal and Replacement Ranger Printed Circuit Board Removal Replacement Procedure Printed Circuit Board Removal and ReplacementPrinted Circuit Board Removal Ranger Output Rectifier Bridge Removal Replacement Output Rectifier Bridge Removal Remove the case top, then reinstall the fuel capSection TOC Ranger Instructions ENGINE/ROTOR Removal and ReplacementFigure F.14 Component LOCATIONS, ENGINE/ROTOR Removal ENGINE/ROTOR RemovalEngine and Rotor Removal Procedure Figure F.15 Engine and Rotor Removed from Stator Rotor Removal ProcedureReassembly Procedure Replacement KIT S20788Retest After Repair Table of Contents Diagrams Section Dimension RANGER8 Dimension Print Ranger 8 Honda & KohlerConnection of Ranger 8 to LN-7 & K240 Contactor KIT DiagramsWiring Diagram Onan NON CSA Model Electrical DiagramsWiring Diagram Onan CSA Model K1418-2 Ranger 8 Onan CSA Version Wiring DiagramWiring Diagram Kohler NON CSA Model K1419-1 Ranger 8 Kohler Wiring DiagramWiring Diagram Kohler CSA Model K1419-2 Ranger 8 Kohler CSA Wiring DiagramK2160-1 Ranger 8 Honda CSA Wiring Diagram 16482 Schematic IDLER/CONTROL PC BoardPC Board Assembly IDLER/CONTROL SVM Error Reporting Form