Lincoln Electric SVM148-B service manual High Speed Solenoid Test

Models: SVM148-B

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F-28

F-28

TROUBLESHOOTING & REPAIR

HIGH SPEED SOLENOID TEST (continued)

FIGURE F.5 – SOLENOID LEADS

PULL-IN COIL (LARGER TERMINALS TOP AND BOTTOM #222H AND #213A)

HOLD-IN COIL (SMALLER TERMINALS TOP AND BOTTOM #222J AND #214A)

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TEST PROCEDURE

1.Turn the engine off.

2.Unlatch, lift and secure the right side engine service access door.

3.Locate and remove the four spade connec- tors that attach the solenoid terminals to the wiring harness leads (#222J, #222H, #213A and #214A). See Figure F.5 and the Wiring Diagram. Remove any necessary wire wraps.

4.Check the pull-in coil resistance (larger ter- minals #222H and #213A). The normal resistance is approximately 0.4 ohms.

Check the hold-in coil resistance (smaller terminals #222J and #214A). The normal resistance is approximately 20 ohms).

If either coil resistance is not correct, the solenoid may be faulty. Replace.

5.Using the external 12VDC supply, apply 12VDC to the larger solenoid terminals (#222H+ to #213A-). The solenoid should activate. The solenoid should deactivate when the 12VDC is removed.

CAUTION

When the solenoid activates, remove the volt- age immediately. Do not leave the external supply connected to terminals #222H and #213A for longer than three seconds. Component damage could result.

8.If the solenoid does not operate properly, check for a mechanical restriction in the linkage.

9.Using the external 12VDC supply, apply 12VDC to the smaller solenoid terminals for the hold-in coil (#222J+ to #214A-). Push in the solenoid plunger. With the 12VDC applied to the hold-in coil, the plunger should stay in until the 12VDC is removed.

10.If the linkage is intact and the solenoid does not operate correctly when the 12VDC is applied, the solenoid may be faulty. Replace.

11.Replace the harness leads to the correct terminals. See Figure F.5 and the Wiring Diagram. Replace any previously re- moved wire wraps.

12.Close and secure the right side engine service access door.

RANGER 300 D AND 300 DLX

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Lincoln Electric SVM148-B service manual High Speed Solenoid Test

SVM148-B specifications

The Lincoln Electric SVM148-B is a state-of-the-art inverter-based power source designed for both professional welders and hobbyists. As a versatile machine, it excels in a variety of welding applications including MIG, TIG, and stick welding. This machine is particularly notable for its efficiency and portability, making it an ideal choice for on-site projects or workshops where space is limited.

One of the main features of the SVM148-B is its inverter technology. Unlike traditional transformer-based welders, inverter welders are typically lighter and more compact. This means that users can transport the machine more easily without sacrificing power or performance. The SVM148-B is capable of delivering a substantial amperage range, allowing for adjustments that suit various materials and thicknesses, from thin sheet metal to thicker plates.

The machine offers adjustable output levels, providing precise control over the welding process. This level of control is essential for achieving clean, strong welds and is especially useful when working with different materials. The SVM148-B is equipped with digital display features that provide real-time feedback on power settings and welding parameters, allowing welders to make quick adjustments as needed.

Another significant advantage of the SVM148-B is its duty cycle, which is designed to accommodate extended usage without overheating. A robust duty cycle means that professionals can rely on this machine for prolonged periods, making it a dependable choice for heavy-duty tasks.

The SVM148-B also includes advanced safety features such as overload protection, which ensures that the machine will shut down in the event of excessive current draw. This feature not only protects the equipment but also enhances user safety during operation.

Moreover, the machine is compatible with a wide variety of welding wires and electrodes, adding to its versatility. Whether you're working with stainless steel, aluminum, or mild steel, the SVM148-B can adapt seamlessly.

In conclusion, the Lincoln Electric SVM148-B combines advanced inverter technology with user-friendly features, making it an invaluable addition to any welding setup. Its portability, control options, robust duty cycle, and safety measures set it apart as a reliable and efficient welding solution for professionals and hobbyists alike. Whether for a small workshop or large industrial applications, the SVM148-B meets the demands of modern welding with efficiency and ease.