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F-30

F-30

TROUBLESHOOTING & REPAIR

OUTPUT RECTIFIER BRIDGE TEST (continued)

FIGURE F.5 – LOCATION OF OUTPUT RECTIFIER LEADS

Pigtail

Ohmmeter Probes

 

+

Diode

-

 

Output rectifier

Bridge Assembly

Machine Front

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TEST PROCEDURE

1.Remove the spark plug wires to prevent accidental engine kickback or starting.

2.WIth the 5/16” nut driver, remove the 6 sheet metal screws from the case top.

3.Remove the rubber gasket (cover seal) from the lift bale.

4.Remove the fuel cap. The rubber gasket for the fill tube will come off with the case top.

5.Remove the case top, then replace the fuel cap.

6.With the 5/16” nut driver, remove the 5 screws holding the right case side.

7.Remove the right case side by lifting up and out.

8.Conduct the test with the gasoline engine OFF.

9.Locate the Output Rectifier Bridge behind the machine case front.

10.With the 1/2” socket wrench, remove the nuts and washers holding the diode bridge pigtails and the heavy current-carrying leads to the studs located in the middle of the rectifier assembly. Note their locations and the order of fasteners for reassembly.

11.Electrically isolate the diode pigtails by bending them back into “free air.”

12.With an ohmmeter or diode tester, check each of the four diodes from their pigtails to their respective heat sinks. See Figure F.5.

13.Reverse the tester leads and check the diodes again. Diodes should have a low resistance in one polarity and a very high resistance in the opposite polarity.

14.Replace any “shorted” or “open” diode as the tests indicate.

15.Reconnect the diode pigtails and heavy leads to their respective studs.

16.Reinstall the case side, case top, fuel cap, lift bale gasket and spark plug wires.

RANGER 9

 

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Lincoln Electric SVM 110-A service manual Output Rectifier Bridge Test

SVM 110-A specifications

The Lincoln Electric SVM 110-A is a state-of-the-art welding machine designed to cater to the needs of professionals and hobbyists alike. Known for its adaptability and superior performance, the SVM 110-A provides a seamless welding experience that is gaining popularity across various industries.

One of the main features of the Lincoln Electric SVM 110-A is its impressive power output. Capable of delivering up to 110 amps of welding current, this machine is ideal for a wide range of applications, including light to medium fabrication work, maintenance, and repair tasks. The versatile voltage input options allow users to operate the machine on standard household current as well as generator power, enhancing its portability and usability in diverse settings.

The SVM 110-A employs advanced inverter technology, which allows for a more compact design without sacrificing performance. This technology not only improves efficiency but also provides greater control over the welding arc, ensuring cleaner beads and reduced spatter. Additionally, the inverter design contributes to a lighter weight, making the SVM 110-A easy to transport and maneuver.

Another significant characteristic of the SVM 110-A is its user-friendly interface. With intuitive controls and clear display indicators, the machine is designed for ease of use, enabling welders to quickly adjust settings to suit their specific needs. This feature is especially beneficial for beginners who are looking to enhance their skills without being overwhelmed by complex operations.

The machine supports a variety of welding processes, including MIG and stick welding, offering unmatched versatility in terms of the types of materials it can handle. From steel to aluminum, the SVM 110-A demonstrates excellent compatibility with various consumables, allowing users to select the best options for their projects.

Furthermore, the design of the SVM 110-A incorporates advanced safety features, including thermal overload protection and a sturdy construction that can withstand demanding environments. This commitment to safety ensures that users can perform their work confidently and efficiently.

In conclusion, the Lincoln Electric SVM 110-A is a remarkable welding machine that combines power, portability, and ease of use. Its advanced inverter technology, user-friendly controls, and versatility make it an ideal choice for both amateurs and seasoned welders. Whether for home projects or professional trades, the SVM 110-A stands out as a reliable and efficient solution in today’s welding landscape.