Machine Grounding, Circuit Breakers | Lincoln Electric SVM125-A

A-7

INSTALLATION

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MACHINE GROUNDING

Because the Classic II creates its own power from its diesel-engine driven gener- ator, you do not need to connect the

machine frame to an earth ground. However, for best protection against elec- trical shock, connect a heavy gauge wire (#8 AWG or

larger) from the ground stud located on the welding generator frame foot. (See Figure A.2) to a suitable earth ground such as a metal pipe driven into the ground. The US National Electrical Code lists a number of alternate means of grounding electrical equipment.

WARNING

Do not ground the machine to a pipe that carries explosive or combustible material.

Some state, local, or other codes or unusual operating circumstances may require the machine frame to be grounded. It is recommended that you determine the extent to which such requirements may apply to your particular situation and follow them explicitly.

When the Classic II is mounted on a truck or a trailer, the machine generator ground stud MUST be secure- ly connected to the metal frame of the vehicle. See Figure A.2. The ground stud is marked with the ground symbol.

For further protection against electric shock, any elec- trical equipment connected to the generator recepta- cles must use a three-blade, grounded type plug or an Underwriter's Laboratories (UL) approved double insu- lation system with a two-blade plug. Lincoln offers an accessory plug kit that has the right type of plugs. See the Accessories section of this manual for details.

If you need ground fault protection for hand-held equip- ment, refer to the Accessories section of this manual for the GFCI Receptacle kit.

AUXILIARY POWER RECEPTACLES, PLUGS, AND HAND-HELD EQUIPMENT

The AC auxiliary power, supplied as a standard, has a rating of 3.0 kVA of 115/230V AC (60 hertz).

With the 3.0 kVA, 115/230V AC auxiliary power, one 115V duplex and one 230V grounding type receptacle are provided. The circuit is protected with circuit break- ers.

The rating of 3.0 kVA permits a maximum continuous current of 13 amps to be drawn from the 230 volt duplex receptacle. Or a total of 26 amps can be drawn from the 115 volt duplex receptacle. The 115 volt duplex receptacle has a configuration which permits 15 amps on CSA machines and 20 amps on non-CSA machines. The total combined load of all receptacles is not to exceed 3.0 kVA.

CIRCUIT BREAKERS

Classic II welders are equipped with circuit breakers on the 115 and the 230 volt receptacles for overload pro- tection. Under high heat a breaker

may tend to trip at lower loads than it would normally.

Operation with high ambient temperatures may cause the breakers to trip at lower than normal loads.

CAUTION

Never bypass the circuit breakers. Without overload protection, the Classic II could overheat and/or cause damage to the equipment being used.

FIGURE A.2 - GROUND STUD LOCATION

1. Ground Stud

CLASSIC II

SVM125-A specifications

The Lincoln Electric SVM125-A is a versatile and highly efficient welding machine that has gained significant recognition in the welding industry. Designed for both professionals and enthusiasts, this machine combines advanced technology with user-friendly features to deliver outstanding performance in a range of welding applications.

One of the standout features of the SVM125-A is its Inverter Technology. This cutting-edge technology allows for lightweight and compact design, making the machine highly portable. The inverter technology also provides a steady arc, which is crucial for achieving clean, high-quality welds. With a duty cycle of 125 amps at a 60% duty cycle, this welding machine can handle a variety of materials and thicknesses, from thin sheet metal to heavier structural components.

The SVM125-A supports multiple welding processes, including MIG, stick, and TIG welding. This versatility makes it an ideal choice for diverse welding tasks, whether you're working in a fabrication shop, doing repair work, or engaged in hobbyist projects. The machine features easy switch functionality, allowing users to quickly shift between welding processes without complicated setup.

Another notable characteristic is the machine's user-friendly interface. The intuitive control panel includes clear indicators and knobs that allow for easy adjustments of voltage and wire feed speed. This design is especially helpful for novice welders, providing them with the confidence to make adjustments as needed and ensuring optimal weld quality.

Safety is also a priority with the SVM125-A. The machine is equipped with thermal overload protection, which automatically shuts it down in case of overheating, preventing damage to the unit and ensuring operator safety. Additionally, the machine features a robust construction that emphasizes durability, making it suitable for demanding work environments.

Portability is enhanced through its lightweight design, and the built-in carrying handle makes it easy to transport from one job site to another. The SVM125-A is also compatible with a variety of welding accessories, further increasing its adaptability and functionality.

In conclusion, the Lincoln Electric SVM125-A stands out as a well-rounded welding machine that integrates advanced technology with user-friendly features. Its versatility in welding processes, robust design, and emphasis on safety and usability make it a valuable tool for welders at all skill levels. Whether for professional use or personal projects, the SVM125-A is a reliable choice that delivers exceptional performance and quality.

Lincoln Electric SVM125-A service manual Machine Grounding, Circuit Breakers

Models: SVM125-A