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F-11F-11

TROUBLESHOOTING & REPAIR

CONTROL TRANSFORMER (T2) VOLTAGE TEST

6. Carefully apply primary power and test for

NOTE: If the correct main AC input power to

the correct secondary voltages. See Table

the Control Transformer is present, and the

F.1.

secondary voltages are not correct, the Control

 

Transformer may be faulty. Replace.

TABLE F.1.

Primary H1 & H2

Approximate Secondary

Voltage

Voltage X1-X3

 

 

575 VAC

43.0 VAC

 

 

460 VAC

34.50 VAC

 

 

380 VAC

28.50 VAC

 

 

Approximate Secondary

0.5 Ohms

Resistance (X1-X3)

 

 

 

Approximate Primary

60 Ohms

Resistance (H1-H2)

 

 

X2-X3 Thermostat

0 Ohms

 

 

MULTI-SOURCE

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Image 39
Lincoln Electric SVM155-A service manual VAC 43.0 VAC 460 VAC 34.50 VAC 380 VAC 28.50 VAC

SVM155-A specifications

The Lincoln Electric SVM155-A is a state-of-the-art welding machine that excels in versatility and performance, making it ideal for both professional welders and hobbyists. This multi-process welder supports MIG, TIG, and stick welding processes, allowing users to tackle a wide range of applications with a single device. Its user-friendly design and advanced technology make it an exceptional choice for those looking to enhance their welding capabilities.

One of the main features of the SVM155-A is its robust power output, which can handle welding materials ranging from thin sheets to heavier stock. The welder offers a high duty cycle, ensuring that users can work efficiently without the need for prolonged breaks. This is especially important in industrial settings where productivity is key. Additionally, the SVM155-A is equipped with a digital display that allows for easy monitoring and precise control of the welding parameters, ensuring consistency in weld quality.

The European-designed INVERTER technology embedded in the SVM155-A significantly contributes to its lightweight and compact design. Weighing in at only 19.4 lbs, this welder is portable and ideal for fieldwork or workshops where space is limited. The inverter technology not only reduces the size and weight but also improves energy efficiency, leading to lower operational costs over time.

The SVM155-A also features advanced safety mechanisms, including over-current protection to safeguard the machine from potential damage during excessive use. It also includes a thermal overload shut-off, which prevents overheating, ensuring a longer lifespan for the welder.

Another standout characteristic of the SVM155-A is its exceptional arc stability and ease of use. The machine is designed to provide a smooth and consistent arc, reducing spatter and ensuring clean welds. Moreover, the welder is compatible with a wide range of materials, including stainless steel, aluminum, and carbon steel, further enhancing its versatility.

In conclusion, the Lincoln Electric SVM155-A is a powerful, durable, and multifunctional welding machine that incorporates advanced technologies to meet the needs of modern welding applications. Its portability, safety features, and ability to deliver high-quality welds make it an excellent investment for anyone looking to improve their welding skills or expand their capabilities in various welding projects.