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F-23

TROUBLESHOOTING AND REPAIR

F-23

ENGINE RPM ADJUSTMENT TEST (continued)

FIGURE F.2 – ENGINE COMPONENTS (CODE 11199 & 114080)

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BALL

JOINT

LOCK NUT

IDLER

ROD

Strobe-Tach Method (continued)

5.The tach should read between 1780 and 1810 RPM

6.Move the idle switch to the “AUTO IDLE” position and wait for the idle solenoid to energize, and the engine RPM to drop and stabilize at the low idle RPM.

7.Synchronize the strobe-tach to read the low idle RPM.

8.The tach should read between 1000 and 1150 RPM.

9.If either of the readings is incorrect, proceed to the “ENGINE RPM ADJUSTMENT PROCEDURE” later in this section.

Frequency counter method:

NOTE: A dedicated frequency counter can be used for this test, but many high quality digital multime- ters also have this function, and can be easily utilized. See the manufacturer’s instructions for your frequency counter or multimeter.

1.Set your frequency counter per the meter manufac- turer’s instructions, and plug the probes into one of the 120VAC auxiliary receptacles.

SOLENOID

BRACKET

2.Start the engine and place the idle switch in the “HIGH IDLE” position. Apply a resistive load of about 300 amps long enough to get the machine up to operating temperature and the RPM to stabilize.

CAUTION: Do Not Short the Output Studs Together as a means of loading the machine. Serious damage can result that will not be covered by Warranty

The frequency should read between 59.3 and 60.3 Hz.

Move the idle switch to the “AUTO IDLE” position and wait for the idle solenoid to energize, and the engine RPM to drop and stabilize at the low idle RPM.

The frequency should read between 33.3 and 38.3Hz.

If either of the readings is incorrect, proceed to the ENGINE RPM ADJUSTMENT PROCEDURElater in this section.

NOTE: For the SAE-400 Severe Duty, and any other Lincoln Electric 1800 RPM (4 Pole) machine, that has 60 Hz AC auxiliary power; the engine RPM can be determined by multiplying the fre- quency of the auxiliary power output, in Hz. By 30. (Example: 60 Hz. * 30 = 1800 RPM)

SAE-400 SEVERE DUTY

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Lincoln Electric SVM187-A service manual Figure F.2 Engine Components Code 11199, Frequency counter method

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.