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F-71

F-71

TROUBLESHOOTING & REPAIR

STATOR AND/OR ROTOR REMOVAL AND REPLACEMENT (continued)

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REASSEMBLY NOTES

1.Be sure to remove the rotor bearing from the stator frame before reinstalling the rotor/stator Also remove the tolerance ring.

2.Install the rotor to the flex plate and install the flex plate to the engine.

3.Carefully install the stator. Tighten the eight bolts finger-tight only.

4.Install a new tolerance ring and press in a new rotor bearing.

5.Tighten stator bolts.

6.Check the air gap for .015” (minimum).

7.Position the front panel and the reactor in place.

8.Perform the Brush Replacement Pro- cedure.

9.Perform the Field Capacitor and Field

Rectifier Bridge Replacement Pro- cedure. (Ranger 300 DLX only.)

10.Perform the Output Capacitor Bank

Replacement Procedure.

11.After installing the choke, perform the

Output Contactor Replacement Pro- cedure (Ranger 300 DLX only, if removed).

12.Mount the choke, reactor, front panel, and vertical baffle.

13.Replace insulation and wire ties previous- ly removed.

14.Mount the output rectifier assemblies.

LEAD RECONNECTION

CHECKLIST

ENGINE

Lead #226 and #5W to fuel gauge

FRONT PANEL

Lead #E to common ground screw

Lead #6 to CB2 (note that it passes through the idler current sensor)

Lead #3 to CB3 (note that it passes through the idler current sensor)

Stator leads C1, C2, C3, and C4 to the S2 range switch (DLX machines)

In-line connectors #32 and #42 to the 14- pin amphenol

Lead W1 to the top of the negative (–) out- put rectifier (left side)

Lead W4 to the center of the positive (+) output rectifier (right side)

Lead W2 at lead R bolted connection (tape the connection)

Leads W5 and W6 between the choke and polarity switch S1 (Ranger 300 DLX only)

Lead A1 between the reactor and the bot- tom of the negative (–) output rectifier (left side)

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RANGER 300 D AND 300 DLX

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Lincoln Electric SVM148-B service manual Reassembly Notes, Lead Reconnection Checklist Engine, Front Panel

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.