Lincoln Electric IM742-A manual Welding without a control cable

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E-3

TROUBLESHOOTING

E-3

 

 

 

 

Observe all Safety Guidelines detailed throughout this manual

 

 

 

 

PROBLEMS

(SYMPTOMS)

POSSIBLE AREAS OF MISADJUSTMENT(S)

RECOMMENDED

COURSE OF ACTION

 

Engine will not idle down to low

1. Idler switch in High idle position.

 

speed.

 

Set switch to Auto.

 

 

2.

External load on welder or auxil-

 

 

 

iary power. Remove all external

 

 

 

loads.

 

 

3.

Faulty PC board or idler sole-

 

 

 

noid.

 

 

 

 

 

Engine will not go to high idle when

1. Poor work lead connection to

 

attempting to weld.

 

work. Make sure work clamp is

 

 

 

tightly connected to clean base

 

 

 

metal.

 

 

2.

"Contactor" switch is in wrong

 

 

 

position. Set to "Welding On" when

 

 

 

welding without a control cable.

 

 

 

Refer to Operations chapter for prop-

 

 

 

er use of this switch.

 

 

3.

Faulty PC board. Low idle speed

 

 

 

set to low.

 

 

 

 

 

Engine will not go to high idle when

1. Auxiliary power load is less than

 

using auxiliary power.

 

100 watts. Idler may not respond

 

 

 

with less than a 100 watt load. Set

 

 

 

idler to "High".

 

 

2.

Faulty PC board.

 

 

 

 

 

Engine does not develop full

1. Fuel filter clogged, Replace.

 

power.

2. Air filter clogged, clean or replace.

 

 

3.

Fouled spark plugs, clean or

 

 

 

replace.

 

 

4.

Valves out of adjustment.

 

 

 

 

 

 

 

 

 

 

If all recommended possible areas of misadjustment have been checked and the problem persists,

Contact your local Lincoln Authorized Field Service Facility.

CAUTION

If for any reason you do not understand the test procedures or are unable to perform the tests/repairs safely, contact your Local Lincoln Authorized Field Service Facility for technical troubleshooting assistance before you proceed.

RANGER 305G

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Contents Ranger 305 G California Proposition 65 Warnings SafetyElectric Shock can kill Iii Welding Sparks can cause fire or explosionSûreté Pour Soudage a L’Arc Précautions DE SûretéPlease Examine Carton and Equipment For Damage Immediately Thank YouTable of Contents Section F ViiSection D Section ELubrication Valve Lifters Fuel System Governor InstallationHeight Width Depth Weight AIR Cleaner Engine Idler Muffler Engine ProtectionMachine Specifications Ranger 305G K1726-1 Additional Safety Precautions Safety PrecautionsLocation and Ventilation OIL PRE-OPERATION Engine ServiceBattery Connection Remote ControlWelding Output Cables Electrical ConnectionsMachine Grounding Welding TerminalsStandby Power Connections Auxiliary Power ReceptaclesConnection of Ranger 305G to Premises Wiring Connection of an LN-23P Wire Feeder to the Ranger 305G Connection of Lincoln Electric Wire FeedersOperation Design FeaturesGeneral Description ARC Control Weld Mode Selector SwitchWelding Controls Output Control Digital Output MetersPIN Amphenol Weld Terminals Control SwitchWire Feeder Voltmeter Switch Weld Output Terminals with Flange NUTWelder Operation StoppingTypical Ranger 305G Fuel Consumption Typical Current Ranges 1 for Tungsten ELECTRODES2 Wire WELDING-CVTIG Welding ARC Gouging Auxiliary PowerRanger 305G Extension Cord Length Recommendations Accessories Engine Maintenance Components MaintenanceKohler Engine Engine Spark Plug Spark Plug ServiceAIR Filter Paper Element Servicing Optional Spark Arrestor Engine AdjustmentBattery Maintenance Fuel FilterWelder/Generator Maintenance HOW to USE Troubleshooting Guide TroubleshootingContact your local Lincoln Authorized Field Service Facility Is Evident.Authorized Field Service FacilityWelding without a control cable Contact your local Lincoln Authorized Field Service FacilityStick Diagrams Diagrams Diagrams Diagrams Diagrams S24787-6 Engine Welders /LN-8 Connection DiagramDiagrams Diagrams Diagrams Diagrams Diagrams G3743 Ranger 305G Wiring Diagram for CodeAmmeter G428523.50 Dimension Print Ranger 305GDimension a Dimension BRanger 305G Basic Course How To Read Shop DrawingsNew Lessons in Arc Welding Need Welding Training?Precaucion Warnung