Lincoln Electric IM612 manual Engine will not go to high idle Poor work lead connection to

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E-3

TROUBLESHOOTING

E-3

 

 

 

 

Observe all Safety Guidelines detailed throughout this manual

 

 

 

 

PROBLEMS

(SYMPTOMS)

POSSIBLE AREAS OF MISADJUSTMENTS(S)

RECOMMENDED

COURSE OF ACTION

C. Engine will not go to high idle

1.

Poor work lead connection to

1.

Make certain work clamp is tightly

when attempting to weld.

 

work.

 

connected to clean base metal.

 

2.

No voltage signal from the

2.

Check for disconnected or broken

 

 

current sensor.

 

leads in idler sensing circuit.

 

3.

No open circuit voltage on

3.

Check generator output.

 

 

output studs.

 

 

 

4.

Faulty P.C. Board.

4.

Replace P.C. Board with

 

 

 

 

known good one.

 

5.

Insufficient voltage present between 5.

Check for proper connection of

 

 

terminals #253 and #5G (Volatge

 

leads.

 

 

should be 12 V DC)

 

 

 

6.

Faulty wiring in solenoid circuit.

6.

Check for broken or loose leads

 

 

 

 

#5G and #253.

 

 

 

 

 

D. Engine will not go to high idle

1.

No voltage signal from the

1.

Check for disconnected or broken

when using auxiliary power.

 

current sensor.

 

leads in idler sensing circuit.

 

2.

Auxiliary power load less than

2.

Idler may not function with less

 

 

100 to 150 watts.

 

than 100 to 150 watt load. Set

 

 

 

 

idler switch to high idle.

 

3.

Faulty P.C. Board

3.

Replace P.C. Board with known

 

 

 

 

good one.

 

4.

Insufficient voltage present between 4.

Check for proper connection of

 

 

terminals #253 and #5G (Volatge

 

leads.

 

 

should be 12 V DC)

 

 

 

5.

Faulty wiring in solenoid circuit.

5.

Check for broken or loose leads

 

 

 

 

#5G and #253.

 

 

 

 

 

E. Engine will not crank or is

1.

Battery will not hold a charge.

1.

Replace with known good one.

hard to crank.

 

Faulty Battery.

 

 

 

2.

No or insufficient charging

2.

Check the connection of the

 

 

current.

 

lead from the voltage regulator

 

 

 

 

on the engine to the charging

 

 

 

 

ammeter and the battery.

 

3.

Loose battery cable

3.

Check and tighten connection

 

 

connection(s).

 

at battery, at starter, at engine

 

 

 

 

foot, or at frame.

F.Engine shuts down.

1.Out of fuel.

1.Add fuel.

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 8+ DIESEL

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Contents Ranger 8 + Diesel California Proposition 65 Warnings SafetyElectric Shock can kill Cylinder may explode if damaged Sûreté Pour Soudage a L’Arc Précautions DE SûretéThank You Engine ServiceTable of Contents Vii Technical Specifications Ranger 8+ Diesel K1632-1 InstallationInstallation Instructions Additional Safety Precautions PRE-OPERATION Engine ServiceLifting OILBattery Connections FuelSpark Arrester Total Combined Length of Electrode and Work Cables Electrical ConnectionsMachine Grounding Welding Cable ConnectionsAuxiliary Power RECEPTACLES, PLUGS, and HAND-HELD Equipment Premises WiringCircuit Breakers Figure A.1 Connection of Ranger 8+ Diesel to Premises WiringOther Features Design FeaturesAuxiliary Power OperationDiesel Engine Additional Safety PrecautionsLimitations Recommended ApplicationsFigure B.1 Output Panel Controls Machine Controls Controls and SettingsOperation Before Starting the Engine Engine OperationStarting the Engine Stopping the EngineBREAK-IN Period Table B.1 Typical Ranger 8+ Diesel Fuel ConsumptionWelding Operation Welding Process Wire Feed Welding Processes Constant VoltageStick Constant Current Welding TIG Constant Current WeldingSummary of Welding Processes Auxiliary Power Simultaneous Welding and Power LoadsTable B.4 Figure B.3 115V Duplex Receptacles 115/230 Volt Dual Voltage ReceptacleAccessories General Options AccessoriesTIG Welding Options Accessories Semiautomatic Fcaw and MIG Welding Options / Acces Sories Connection of Ranger 8+ Diesel to LN-7 & K240 Contactor KIT Accessories Connection DiagramsMaintenance Safety PrecautionsRoutine Maintenance Battery Engine Adjustments Engine Maintenance Components Slip RingsHOW to USE Troubleshooting Guide TroubleshootingTroubleshooting Engine will not go to high idle Poor work lead connection to Troubleshooting Diagrams Maximum Overall Dimensions Ranger 8+ How To Read Shop Drawings Precaucion Warnung