Lincoln Electric DX450 Cooling System, Tightening the FAN Belt, Bleeding the Fuel System

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D-4

MAINTENANCE

D-4

 

 

 

COOLING SYSTEM

WARNING

HOT COOLANT can burn skin.

• Do not remove cap if radiator is hot.

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Check the coolant level by observing the level in the radiator and recovery bottle. Add 50/50 antifreeze / water solution if the level is close to or below the "LOW" mark. do not fill above the "FULL" mark. Remove radiator cap and add coolant to radiator. Fill up to the top of the tube in the radiator filler neck which includes a connecting hose coming from the thermostat housing.

To drain the coolant, open the valve at the bottom of the radiator. Open the radiator cap to allow complete drainage. (Tighten the valve and refill with a 50/50 antifreeze/water solution.) Use an automotive grade (low silicate) ethylene glycol antifreeze. The cooling system capacity is11.5 quarts (10.9L). Squeeze upper and lower radiator hoses while filling to bleed air from system coolant. Replace and tighten the radiator cap.

CAUTION

Always premix the antifreeze and clean tap water before adding to the radiator. It is very important that a precise 50/50 solution be used with this engine year round. This gives proper cooling dur- ing hot weather and freezing protection to -34° F (- 37° C).

Cooling solution exceeding 50% ethylene glycol can result in engine overheating and damage to the engine. Coolant solution must be premixed before adding to radiator.

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Periodically remove the dirt from the radiator fins. Periodically check the fan belt and radiator hoses. Replace if signs of deterioration are found.

TIGHTENING THE FAN BELT

If the fan belt is loose, the engine can overheat and the battery lose its charge. Check tightness by press- ing on the belt midway between the pulleys. It should deflect about .25 in.(6.4 mm) under a load of 20 lbs.(9 Kg).

FUEL: Diesel Fuel Only - Low Sulphur Fuel or Ultra Low Sulphur Fuel in U.S.A. and CANADA only.

At the end of each day’s use, refill the fuel tank to min- imize moisture condensation and dirt contamination in the fuel line. Do not overfill; leave room for the fuel to expand.

Use only fresh No. 2D diesel fuel, the use of No. 1D diesel fuel is recommended in place of No. 2D at tem- peratures below 23°F (-5°C). Do not use kerosene.

See the Engine Operator's Manual for instructions on replacing the fuel filter.

BLEEDING THE FUEL SYSTEM

You may need to bleed air from the fuel system if the fuel filter or fuel lines have been detached, the fuel tank has been ran empty or after periods of long stor- age. It is recommended that the fuel shutoff valve be closed during periods of non-use.

WARNING

To avoid personal injury, do not bleed a hot engine. This could cause fuel to spill onto a hot exhaust manifold, creating a danger of fire.

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Bleed the fuel system as follows:

1.Fill the fuel tank with fuel.

2.Open the fuel shut off valve.

3.Loosen bleed fitting on the fuel injector manifold.

4.Operate hand priming lever until fuel comes out the bleed screw on the injector manifold. This could take 20-30 seconds of rapid operation of the prim- ing lever. Tighten bleed fitting on injector manifold.

5.Follow normal STARTING procedures until engine starts.

DX450 (RED-D-ARC)

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Contents RED-D-ARC DX450 RED-D-ARC SafetyElectric Shock can kill Iii Welding and Cutting Sparks can Cause fire or explosionSûreté Pour Soudage a L’Arc Précautions DE SûretéCustomer Assistance Policy Thank YouTable of Contents Section E Section DSection F SeriesTechnical Specifications DX450 K2712-1 InstallationLocation and Ventilation Safety PrecautionsVRD Voltage Reduction Device Vehicle Mounting PRE-OPERATION Engine ServiceTowing OILRemote Control Battery ConnectionFuel Engine Cooling SystemElectrical Connections Duplex Receptacles and Gfci Modules Auxiliary Power ReceptaclesStandby Power Connections Xyz Connection of DX450 to Premises WiringConnection of LN-7 or LN-8 to the DX450 Shut the welder off Connection of Lincoln Electric Wire FeedersConnection of LN-15 to the DX450 Shut the welder off Across The-Arc ModelInstallation General Description OperationFigure B.1 Weld Mode Selector SwitchTable B.1 Wire Feeder Voltmeter SwitchGlow Plug Push Button Engine ControlsStarting the Engine Table B.2Welder Operation Stopping the EngineConstant Current CC-STICK Welding Duty CycleTable B.3 TIG WeldingTypical Current Ranges 1 for Tungsten ELECTRODES2 Auxiliary Power Wire WELDING-CVARC Gouging PlusField Installed Options / Accessories AccessoriesWire Feeder Options TIG OptionsRoutine Maintenance MaintenanceOIL Filter Change AIR CleanerEngine OIL Change Servicei Instructions Bleeding the Fuel System Cooling SystemTightening the FAN Belt Servicing Optional Spark Arrestor Engine AdjustmentBattery Maintenance Gfci Module Testing and Resetting Procedure Welder / Generator MaintenanceHOW to USE Troubleshooting Guide TroubleshootingContact your local Authorized Field Service FacilityWelding without a control cable High idle does not work Faulty control cable. Repair or Your local Authorized Field Service FacilityDX450 RED-D-ARC DiagramsDiagrams Diagrams Diagrams Diagrams Diagrams DX450 RED-D-ARC Wiring Diagram Print DimensionDX450 RED-D ARCDX450 RED-D-ARC DX450 RED-D-ARC Precaucion Warnung