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F-87

F-87

 

 

TROUBLESHOOTING & REPAIR

SWITCH BOARD AND FILTER CAPACITOR

REMOVAL AND REPLACEMENT (CONTINUED)

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7.Using the 7/16” wrench, remove leads 13/14 or 17/18 from the switch board.

8.Using the 7/16” wrench, remove leads 11/12 or 15/16 from the switch board.

9.Using the 7/16” wrench, remove leads 19C/D+ and 20C/D- from the switch board capacitor connection bolts.

10.With the slot head screwdriver, remove the two nylon mounting screws at the bottom of the switch board. Note placement of the shake-proof washers and fiber spacers.

11.Using the 3/16” allen wrench, carefully remove the four cap screws that mount the switch board to the heat sink.

12.Carefully remove the switch board from the heat sink.

13.If the filter capacitor is to be removed, care- fully slide it out of the mounting bracket.

REPLACEMENT PROCEDURE

1.If the filter capacitor is to be replaced, care- fully slide the new capacitor into the mount- ing bracket. Position the capacitor so the correct polarity terminal is lined up with the correct hole on the switch board.

2.All heat sink and IGBT mounting surfaces must be clean.

3.Apply a thin coat of thermal compound (Penetrox A13) 0.005 to 0.010 inches thick to the mating surfaces. Do not apply around mounting holes.

4.Apply a thin coat of Penetrox A13 to the capacitor terminals. Be careful not to apply compound to screw threads or threaded area of terminals.

5.Mount the new switch board and tighten the four cap head screws in the following manner.

Tighten all until snug.

Tighten all from 24 to 28 in-lbs.

Tighten all from 40 to 48 in-lbs.

6.Make sure the capacitor is positioned cor- rectly. Connect leads 19C/D+ and 20C/D- to the correct terminals. Tighten to 55 in/lbs.

7.Position and mount the two nylon screws, fiber spacers, and washers. Torque from 4 to 8 in-lbs.

8.Connect leads 11/12 or 15/16 to the correct terminal.

9.Connect leads 13/14 or 17/18 to the correct terminal.

10.Install the mylar insulating shield covering leads 11/12 or 15/16. Replace the cable tie.

11.Connect molex plug J40/J50 to the top of the switch board.

12.Using the 5/16” nut driver, install the plastic high voltage protective shield.

13.Install the case top and sides using the 3/8” nut driver.

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POWER WAVE 455M/MSTT

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Lincoln Electric SVM173-A service manual Replacement Procedure

SVM173-A specifications

The Lincoln Electric SVM173-A is a highly regarded welding power supply that stands out for its advanced features, robust performance, and innovative technologies. This machine is specifically designed to meet the demands of both industrial and commercial welding applications, making it a versatile choice for professionals.

One of the main features of the SVM173-A is its high efficiency, which contributes to reduced energy costs and enhanced productivity. The device operates on a powerful DC output, ensuring stable and reliable arc performance. This is particularly beneficial when working with various materials, allowing for smooth and consistent welds.

The SVM173-A leverages Lincoln Electric's proprietary inverter technology. This innovation allows for a lighter weight and more compact design without compromising on power. The inverter technology also enables precise control of the welding parameters, which is critical for maintaining quality across different welding tasks. Additionally, the machine features a wide input voltage range, accommodating various power sources and enhancing its adaptability on job sites.

Another key characteristic of the SVM173-A is its user-friendly interface. The machine is equipped with an intuitive control panel that allows users to easily adjust settings, making it accessible for both novice and experienced welders. The digital display provides clear readouts of output parameters and error notifications, facilitating quick troubleshooting in the field.

Safety is paramount in welding operations, and the SVM173-A incorporates several protection features. These include overcurrent protection, overheating protection, and circuit protection, ensuring that the machine operates safely and efficiently under various conditions.

The SVM173-A also supports a wide range of welding processes, including MIG, TIG, and stick welding. This flexibility makes it an ideal choice for workshops that require a multi-process machine capable of handling diverse applications. Furthermore, the SVM173-A supports spool gun operation, which is particularly useful for aluminum welding, enhancing its versatility even further.

In summary, the Lincoln Electric SVM173-A is a powerful and adaptable welding machine that combines innovative technologies, user-friendly features, and robust safety mechanisms. Its high efficiency, precision control, and multi-process capabilities make it an excellent investment for professionals seeking reliable performance in demanding environments. Whether for heavy-duty industrial use or more specialized applications, the SVM173-A stands as a testament to Lincoln Electric's commitment to quality and innovation in welding solutions.