Lincoln Electric DX450 Fuel, Engine Cooling System, Battery Connection, Muffler Outlet Pipe

A-4 INSTALLATION A-4

FUEL

USE DIESEL FUEL ONLY-

Low Sulphur fuel or ultra low sulphur fuel in USA and CANADA only.

WARNING

•Fill the fuel tank with clean, fresh fuel. The capacity of the tank is 20 gals. (75.7 ltrs). When the fuel gauge reads empty the tank contains approximately 2 gals. (7.6ltrs.) of reserve fuel.

NOTE: A fuel shut off valve is located on the pre-fil- ter/sediment filter. Which should be in the closed position when the welder is not used for extend- ed periods of time.

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ENGINE COOLING SYSTEM

WARNING

Air to cool the engine is drawn in the side and exhaust- ed through radiator & case back. It is important that the intake and exhaust air is not restricted. Allow a mini- mum clearance of 1ft. (0.6m) from the case back and 16 in. (406mm) from either side of the base to a vertical surface.

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BATTERY CONNECTION

CAUTION

Use caution as the electrolyte is a strong acid that can burn skin and damage eyes.

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The DX450 is shipped with the negative battery cable dis- connected. Make certain that the RUN-STOP switch is in the STOP position. Remove the two screws from the battery tray using a screwdriver or a 3/8"(10mm) socket. Attach the negative battery cable to the negative battery terminal and tighten using a 1/2"(13mm) socket or wrench.

NOTE: This machine is furnished with a wet charged battery; if unused for several months, the battery may require a booster charge. Be careful to charge the bat- tery with the correct polarity. (See Battery in “Maintenance Section”)

MUFFLER OUTLET PIPE

Using the clamp provided secure the outlet pipe to the outlet tube with the pipe positioned such that it will direct the exhaust in the desired direction. Tighten using a 9/16"(14mm) socket or wrench.

SPARK ARRESTER

Some federal, state or local laws may require that gasoline or diesel engines be equipped with exhaust spark arresters when they are operated in certain locations where unarrested sparks may present a fire hazard.

The standard muffler included with this welder does not qualify as a spark arrester. When required by local regulations, a suitable spark arrester, such as the K903-1 must be installed and properly maintained.

WARNING

An incorrect spark arrestor may lead to damage to the engine or adversely affect performance.

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REMOTE CONTROL

The DX450 is equipped with a 3-pin and a 14-pin con- nector. When in the CC-STICK, CV-WIRE OR GOUGE modes and when a remote control is con- nected to the 3-pin Connector, the auto-sensing circuit automatically switches the OUTPUT control from con- trol at the welder to remote control.

When in TOUCH START TIG mode and when a Amptrol is connected to the 3-Pin Connector, the OUTPUT dial is used to set the maximum current range of the CURRENT CONTROL of the Amptrol.

When in the DOWNHILL PIPE mode and when a remote control is connected to the 3-Pin or 14-Pin connector, the output control is used to set the max- imum current range of the remote.

EXAMPLE: When the OUTPUT CONTROL on the welder is set to 200 amps the current range on the remote control will be 40-200 amps, rather than the full 40-300 amps. Any current range that is less than the full range provides finer current resolution for more fine tuning of the output.

In the CV-WIRE mode, if the feeder being used has a voltage control when the wire feeder control cable is connected to the 14-Pin Connector, the auto-sensing circuit automatically makes OUTPUT CONTROL inac- tive and the wire feeder voltage control active. Otherwise, the OUTPUT CONTROL is used to preset the voltage.

The 14-pin connector is used to directly connect a wire feeder control cable. In the CV-WIRE mode, when the control cable is connected to the 14-pin con- nector, the auto-sensing circuit automatically makes the Output Control inactive and the wire feeder volt- age control active.

WARNING

NOTE: When a wire feeder with a built in welding voltage control is connected to the 14-pin connec- tor, do not connect anything to the 3-pin connec- tor.

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DX450 (RED-D-ARC)