Welding Operation

B-11

OPERATION

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CAUTION

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

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.

GENERAL INFORMATION

The RANGER 300 machines can deliver from 45 to 300 amps of constant current for AC/DC stick welding. The Ranger 300 DLX can deliver 45 to 300 amps of constant voltage current for DC semiautomatic wire feed welding. The Ranger 300 D can deliver 45 to 200 amps of constant voltage current for DC semiauto- matic wire feed welding. AC/DC constant current TIG welding is possible across the entire range from 45 to 300 amps, although 250 amps is the maximum rec- ommended for AC TIG welding of aluminum.

Output can be adjusted by setting the POLARITY SWITCH, the OUTPUT RANGE dial, and the FINE CONTROL dial on the output control panel to the set- tings that are best for your selected welding process.

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FUMES AND GASES can be danger- ous.

• Keep your head out of fumes.

•Use ventilation or exhaust to remove fumes from breathing zone.

MOVING PARTS can injure.

• Do not operate with doors open or guards off.

•Stop engine before servicing.

•Keep away from moving parts.

WELDING SPARKS can cause fire or explosion.

• Keep flammable material away.

ARC RAYS can burn.

• Wear eye, ear and body protection.

See additional warning information throughout this operator’s manual.

AC/DC STICK (CONSTANT CURRENT) WELDING

1.Remove the flange nuts from output terminals and place the work and electrode welding cables over the terminals. See Figure B.4. Replace and tight- en the flange nuts securely. Be sure the connec- tions are tight.

2.Select the appropriate electrode. See “Welding Tips 1” included with your RANGER 300.

3.Attach the work clamp securely to the work you are welding.

4.Insert the electrode into the electrode holder.

5.Set the IDLER CONTROL to AUTO and start the diesel engine.

6.Set the RANGE switch to a setting equal to or slightly lower than the welding current recom- mended for the electrode being used. For the best welding performance, always set the RANGE switch to the lowest CC-blue setting that will give the desired weld current. This will assure that the OUTPUT dial is set towards the high end of the dial. If the OUTPUT dial is set at 10 and the weld- ing current is set to low, move the RANGE switch to the next highest setting.

7.Set the POLARITY switch to the desired polarity (CC-blue setting).

8.Set the OUTPUT control. For stick welding, always use a setting between 5 and 10 on the dial (blue range).

9.Strike an arc and begin welding. The OUTPUT control can be adjusted while welding.

RANGER 300 D AND 300 DLX

SVM148-B specifications

The Lincoln Electric SVM148-B is a state-of-the-art inverter-based power source designed for both professional welders and hobbyists. As a versatile machine, it excels in a variety of welding applications including MIG, TIG, and stick welding. This machine is particularly notable for its efficiency and portability, making it an ideal choice for on-site projects or workshops where space is limited.

One of the main features of the SVM148-B is its inverter technology. Unlike traditional transformer-based welders, inverter welders are typically lighter and more compact. This means that users can transport the machine more easily without sacrificing power or performance. The SVM148-B is capable of delivering a substantial amperage range, allowing for adjustments that suit various materials and thicknesses, from thin sheet metal to thicker plates.

The machine offers adjustable output levels, providing precise control over the welding process. This level of control is essential for achieving clean, strong welds and is especially useful when working with different materials. The SVM148-B is equipped with digital display features that provide real-time feedback on power settings and welding parameters, allowing welders to make quick adjustments as needed.

Another significant advantage of the SVM148-B is its duty cycle, which is designed to accommodate extended usage without overheating. A robust duty cycle means that professionals can rely on this machine for prolonged periods, making it a dependable choice for heavy-duty tasks.

The SVM148-B also includes advanced safety features such as overload protection, which ensures that the machine will shut down in the event of excessive current draw. This feature not only protects the equipment but also enhances user safety during operation.

Moreover, the machine is compatible with a wide variety of welding wires and electrodes, adding to its versatility. Whether you're working with stainless steel, aluminum, or mild steel, the SVM148-B can adapt seamlessly.

In conclusion, the Lincoln Electric SVM148-B combines advanced inverter technology with user-friendly features, making it an invaluable addition to any welding setup. Its portability, control options, robust duty cycle, and safety measures set it apart as a reliable and efficient welding solution for professionals and hobbyists alike. Whether for a small workshop or large industrial applications, the SVM148-B meets the demands of modern welding with efficiency and ease.

Lincoln Electric SVM148-B service manual Welding Operation

Models: SVM148-B

OPERATION