Theory of Operation, General Description

B-2	THEORY OF OPERATION	B-2

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SAFETY PRECAUTIONS

WARNING

Do not attempt to use this equipment until you have thoroughly read the engine manufacturer’s manual supplied with your welder. It includes important safety precautions, detailed engine starting, operating and maintenance instructions, and parts lists.

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ELECTRIC SHOCK can kill.

• Do not touch electrically live parts or electrode with skin or wet clothing.

•Insulate yourself from work and ground

•Always wear dry insulating gloves.

•Always operate the welder with the hinged door closed and the side panels in place.

•Read carefully the Safety Precautions page before operating this machine. Always follow these and any other safety procedures included in this manual and in the Engine Instruction Manual.

GENERAL DESCRIPTION

The VANTAGE® 400 is a diesel engine powered DC multi-process welding power source and 120 / 240 volt AC power generator. The engine drives a generator that supplies three phase power for the DC welding cir- cuit, single phase and Three Phase power for the AC auxiliary outlets. The DC welding control system uses

state of the art Chopper Technology (CT™) for superi- or welding performance.

The Vantage® 400 is fitted with a selectable VRD(Voltage Reduction Device). The VRD operates in the CC-Stick mode reducing the OCV to <13 volts, increasing operator safety when welding is performed in environments with increased hazard of electric shock.

FOR AUXILIARY POWER: Start the engine and set the IDLER

control switch to the desired operating mode. Full power is available regardless of the welding control settings providing no welding current is being drawn.

ENGINE OPERATION

Before Starting the Engine:

•Be sure the machine is on a level surface.

•Open side engine door and remove the engine oil dipstick and wipe it with a clean cloth. Reinsert the dipstick and check the level on the dipstick.

•Add oil (if necessary) to bring the level up to the full mark. Do not overfill. Close engine door.

•Check radiator for proper coolant level. (Fill if nec- essary).

•See Engine Owner’s Manual for specific oil and coolant recommendations.

WARNING

ADD FUEL

• Stop engine while fueling.

• Do not smoke when fueling.

•Keep sparks and flame away from tank.

•Do not leave unattended while fueling.

DIESEL FUEL • Wipe up spilled fuel and allow can cause fire. fumes to clear before starting

engine.

•Do not overfill tank, fuel expan- sion may cause overflow.

DIESEL FUEL ONLY

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•Remove the fuel tank cap.

•Fill the tank. DO NOT FILL THE TANK TO THE POINT OF OVERFLOW.

•Replace the fuel cap and tighten securely.

•See Engine Owner’s Manual for specific fuel recom- mendations.

BREAK-IN PERIOD

CAUTION

The engine will use a small amount of oil during its “break-in” period. The break-in period is about 50 run- ning hours.

Check the oil every four hours during break-in. Change the oil after the first 50 hours of operation and every 200 hours thereafter. Change the oil filter at each oil change.

During break-in, subject the Welder to moderate loads. Avoid long periods running at idle. Before stopping the engine, remove all loads and allow the engine to cool several minutes.

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VANTAGE® 400

400 specifications

The Lincoln Electric 400 is a state-of-the-art multi-process welding machine designed to meet the demands of today’s industrial welding applications. Renowned for its reliability and versatility, this welder is a preferred choice among professionals in fabrication, construction, and maintenance industries.

One of the main features of the Lincoln Electric 400 is its multi-process capability. It seamlessly integrates MIG, TIG, and stick welding processes into a single unit, allowing users to switch between methods depending on the job at hand. This flexibility makes it incredibly suitable for a wide range of materials, including steel, stainless steel, and aluminum.

The welding machine boasts a robust power output, with a maximum range of 400 amps. This impressive capacity enables it to handle thick materials effectively, making it ideal for heavy-duty tasks. The machine operates on both single-phase and three-phase power, giving users the advantage of versatility depending on the power source available at the job site.

Another significant characteristic of the Lincoln Electric 400 is its advanced digital display and control interface. This user-friendly panel allows for easy adjustments to voltage and wire feed speed, ensuring precision and high-quality welds. Additionally, the machine includes built-in features to improve the consistency of welding, such as the Smart MIG technology which optimizes the welding parameters automatically based on the wire diameter and material thickness.

In terms of durability, the Lincoln Electric 400 is designed for rugged environments. Its heavy-duty construction, including a robust metal casing and protective features, ensures it can withstand the rigors of daily use in harsh conditions. Furthermore, the welder is often praised for its efficient cooling system, which prolongs the machine's lifespan and maintains optimal performance even during extended usage.

Portability is another key aspect of this welding machine. Weighing under 200 pounds, it is designed with mobility in mind. The integrated wheels allow for easy transportation between job sites, making it a practical choice for mobile welders and contractors.

In conclusion, the Lincoln Electric 400 stands out in the welding equipment market due to its multi-process capabilities, impressive power output, user-friendly interface, durability, and portability. It is engineered to exceed the expectations of professional welders, providing them with the tools needed for high-quality results across a variety of applications.

Lincoln Electric 400 service manual Theory of Operation, General Description, Diesel Fuel only

Models: 400