Retest After Repair

Return to Section TOC

Return to Master TOC

F-89

F-89

Retest after repair

The machine should be retested if any parts are replaced that could affect the machine’s electrical characteristics.

Engine output:

Perform the Engine RPM Adjustment Test

Welder DC Output:

Maximum Output:

Bring the machine to normal temperature by connecting a load bank and operating the machine at 100% output (400 amps @ 36 volts) for about 30 minutes.

Remove the load and set the output control and job selector rheostat to the maximum posi- tion.

IMPORTANT: Do not move the output control while a load is applied to the weld out- put terminals. Damage to the output control unit may result.

Read the open circuit voltage (OCV) at the weld output terminals. The voltage should mea- sure 93 to 99 DC Volts.

Apply a 500 Amp load to the machine using the resistive load bank. Check the engine RPM and weld terminal voltage.

The Engine RPM should be 1680 to 1795

The weld output volts should be 45 to 51 VDC.

AC Auxiliary Output:

Machine should be operating at normal operating temperature. Place the idle switch in the high idle position.

230 Volt receptacles should read 240 to 254 AC volts.

115 Volt receptacles should read 118 to 128 AC Volts.

Field amps and volts:

Place the Job Selector rheostat to Maximum. (The machine should still be at normal operat- ing temperature.)

Exciter volts, Measured at slip rings: 124 to 132 DC Volts

Exciter rotor amps: 2.1 to 2.6

Shunt field amps: 2.55 to 3.2

(Measure the Shunt Field current at either the blue or brown wires between the generator and the 500 ohm resistor. See wiring diagram.)

SAE-400 SEVERE DUTY

SVM187-A specifications

The Lincoln Electric SVM187-A is a cutting-edge welding machine designed for professional welders and industrial applications. Known for its reliability and performance, it stands out in the competitive welding equipment market. This versatile machine is structured to handle various welding processes, making it a popular choice among users.

One of the primary features of the SVM187-A is its multifunctional capabilities. It supports MIG, TIG, and Stick welding, allowing users to switch between different welding techniques seamlessly. This flexibility makes it suitable for diverse applications, whether working on automotive repairs, metal fabrication, or construction projects. Additionally, the machine is equipped with a robust power output, ranging from low to high amperage settings, enabling users to tackle a wide array of materials, including mild steel, stainless steel, and aluminum.

The SVM187-A incorporates advanced inverter technology, which ensures increased efficiency and reduced energy consumption. This technology leads to a more compact design, making the unit portable and easy to transport. The lightweight construction of the machine does not compromise its durability; it is built with high-quality materials to withstand the rigors of a professional workshop.

Another notable characteristic of the SVM187-A is its user-friendly interface. The intuitive control panel includes digital displays for precise settings adjustments, ensuring accuracy during operation. Beginners and seasoned welders alike can benefit from the clear and straightforward design, reducing training time and enhancing productivity.

Safety features are paramount in the SVM187-A's design. The machine is equipped with thermal overload protection, ensuring that it operates within a safe temperature range to prevent damage and promote longevity. Additionally, it features automatic voltage regulation, which maintains a stable arc even under varying input voltage conditions.

In summary, the Lincoln Electric SVM187-A is a versatile, efficient, and user-friendly welding machine suited for both professional and industrial applications. Its multifunctionality, inverter technology, and robust safety features set it apart from competitors, making it a reliable choice for welders seeking to elevate their craftsmanship while ensuring safety and efficiency. This machine represents the innovation and quality that Lincoln Electric is renowned for in the welding industry.

Lincoln Electric SVM187-A service manual Retest After Repair

Models: SVM187-A

RETEST AFTER REPAIR