Lincoln Electric SVM107-B service manual Engine Throttle Adjustment Test

Page 71

F-31

F-31

TROUBLESHOOTING & REPAIR

TOC

TOC

ENGINE THROTTLE ADJUSTMENT TEST (continued)

 

Section

Master

FIGURE F.8

 

FIGURE F.9

 

HIGH IDLE ADJUSTMENT NUT

LOW IDLE ADJUSTMENT NUT

to

to

 

 

 

 

Return

Return

 

Solenoid

3/8" Low Idle

 

Housing

 

Adjustment

Muffler

 

Nut

 

 

 

Throttle

 

 

 

 

 

linkage

 

 

 

 

 

Choke

 

 

 

 

 

Cable

 

 

 

TOC

TOC

 

 

 

Rod

 

 

 

 

Section

Master

3/8" High Idle

 

 

 

Adjustment Nut

 

 

 

Return to

Return to

 

 

 

 

 

11.

If either of the readings is incorrect, adjust

2.

Start the engine and check the frequency

 

 

the throttle as follows:

 

 

 

counter.

At HIGH IDLE (3700 RPM), the

 

 

Adjust HIGH IDLE: Use the 3/8” wrench to

 

counter should read 60.8 to 62.5 Hz. At

 

 

 

LOW IDLE (2200

RPM),

the counter

 

 

turn the spring-loaded adjustment nut.

 

 

 

 

should read 35.8 to 37.5 Hz. Note that

 

 

See Figure F.8 for location of the adjust-

 

 

 

 

these are median

measurements; hertz

TOC

TOC

ment nut. Turn

the nut

clockwise

to

 

 

readings may vary slightly above or below.

increase HIGH IDLE speed.

Adjust

the

 

 

 

 

 

 

Section

Master

speed until the tach reads between 3650

3.

If either of the readings is incorrect, adjust

 

 

 

 

and 3750 RPM.

 

 

 

 

the throttle as follows:

 

to

to

Adjust LOW IDLE: First make sure there is

 

Adjust HIGH IDLE: Use the 3/8” wrench to

no load on the machine.

Set the IDLE

 

turn the

spring-loaded adjustment nut.

Return

Return

 

switch to AUTO and wait for the engine to

 

See Figure F.8 for location of the adjust-

 

 

 

 

 

change to low idle speed.

Use the 3/8”

 

ment nut.

Turn the nut clockwise to in-

 

 

wrench to adjust the solenoid nut, which

 

crease HIGH IDLE speed.

Adjust the

 

 

changes the amount of throw in the throttle

 

speed until the frequency reads between

 

 

lever arm. See Figure F.9 for location of the

 

60.8 and 62.5 Hz.

 

 

 

 

adjustment nut.

Adjust the nut until the

 

Adjust LOW IDLE: First make sure there is

 

 

tach reads between 2150 and 2250 RPM.

 

 

 

 

no load on the machine. Set the IDLER

 

 

 

 

 

 

 

 

Frequency Counter Method

 

 

 

switch to AUTO and wait for the engine to

 

1. Plug the frequency counter into one of the

 

change to low idle speed. Use the 3/8”

 

 

wrench to adjust the solenoid nut, which

TOC

TOC

115 VAC auxiliary receptacles.

 

 

 

 

changes the amount of throw in the throttle

 

 

 

 

 

 

 

 

 

 

 

SectiontoReturn

MastertoReturn

 

 

 

 

 

lever arm. See Figure F.9 for location of the

 

 

 

 

 

adjustment nut. Adjust the nut until the fre-

 

 

 

 

 

 

 

 

 

 

 

 

 

 

quency reads between 35.8 and 375.Hz.

 

 

 

 

 

RANGER 8

 

 

 

Image 71
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 Fuel Battery ConnectionsOil AWGAngle of Operation Constant Current Connection of the LN-7 to the RangerWelder Output RangerMotor 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 Welding voltage control with the Range switch set Control SwitchProvides a fine welding current adjustment within Range Switch settings in the STICK/TIG modeStopping 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 Kohler Onan Honda Routine MaintenanceEngine OIL Change Engine OIL Refill CapacitiesOIL Filter Change Slip Rings Engine AdjustmentsEngine Maintenance Parts Pre-CleanerFigure 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 & RepairHandle only at PC board can be damaged by static electricityStatic-Sensitive DevicesOutput 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