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F-60

TROUBLESHOOTING & REPAIR

F-60

OUTPUT DIODE REPLACEMENT PROCEDURE (cont.)

FIGURE F.31 - RECTIFIER ASSEMBLY WITH PARALLELED DIODES

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PROCEDURE (Paralleled IndividualDiodes)

1.Turn main power OFF.

2.Perform Input Filter Capacitor Discharge proce- dure detailed in Maintenance section..

3.Detach and remove both Switch Board assemblies and attached capacitors. See Switch Board Removal and Replacement procedure

4.Detach the fan shroud to gain access to the diode heat sink and mounting bracket. When the fan shroud is lifted, the tabs securing the heat sink mounting bracket will release.

5.Move the diode heat sink and mounting bracket away from the Case Back.

6.Unsolder the leads from each of the diodes to be replaced.

7.Remove the nut that secures each diode to the heat sink and mounting bracket.

8.Mount the replacement diodes to the heat sink. IMPORTANT: The replacement diodes will come with an instruction sheet that addresses surface preparation and torque values. Failure to follow these instructions may result in subsequent break down.

9.Carefully resolder the leads to the new diodes.

10.Reassemble the unit being careful to use all of the insulating materials. Also make certain to replace all disconnected leads in their proper location. Failure to do so may result in machine damage when the power is applied.

11.Perform the Test After Switch Board or

Capacitor Replacement .

V300-PRO

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Lincoln Electric SVM105-B service manual Output Diode Replacement Procedure, Procedure Paralleled IndividualDiodes

SVM105-B specifications

The Lincoln Electric SVM105-B is a state-of-the-art welding machine that represents a leap forward in welding technology, designed for both professionals and enthusiasts in the welding industry. This versatile machine combines robust performance with user-friendly features, making it suitable for a wide range of welding applications.

One of the key features of the SVM105-B is its advanced inverter technology. This allows for a lightweight design without compromising on power output. The inverter technology ensures a stable arc and precise control, enabling consistent weld quality across various materials, including mild steel, stainless steel, and aluminum. This feature is particularly beneficial for users who demand exceptional performance in both thin and thick materials.

The SVM105-B also boasts an impressive output range, typically between 10A to 105A, allowing for adaptability to different welding tasks. Its ability to seamlessly switch between DC and AC modes makes it an ideal choice for professionals working in diverse environments, facilitating operations such as TIG and stick welding. This versatility is further enhanced by its compatibility with various electrode types, ensuring a more efficient and effective welding process.

User safety and comfort have not been overlooked in the design of the SVM105-B. Equipped with an efficient cooling system, this machine effectively manages heat during prolonged use, ensuring durability and longevity. Additionally, its intuitive digital display provides real-time feedback on settings, making it easier for users to monitor parameters and make necessary adjustments on the fly.

The SVM105-B is built with portability in mind. Its compact and lightweight design makes it easy to transport, enabling welders to bring their equipment to job sites without hassle. Furthermore, the machine features sturdy handles that contribute to its ease of maneuverability, supporting the demands of both inside workshops and outdoor projects.

Moreover, Lincoln Electric places a strong emphasis on quality and reliability, and the SVM105-B is a testament to this commitment. The machine is constructed from durable materials designed to withstand the rigors of daily use, ensuring it remains a staple in any welder's toolkit for years to come.

In conclusion, the Lincoln Electric SVM105-B stands out with its combination of advanced inverter technology, versatile output, user-friendly interface, and robust construction. Whether for professional or hobbyist use, this welding machine meets a wide array of welding needs while providing excellent performance and durability.