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Lincoln Electric SVM186-A service manual Safety Precautions, Routine and Periodic Maintenance

Models: SVM186-A

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TOC

TOC

 

D-2

MAINTENANCE

D-2

 

 

 

SAFETY PRECAUTIONS

 

WARNING

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WARNING

ELECTRIC SHOCK can kill.

•Only qualified personnel should per- form this maintenance.

•Turn the input power OFF at the dis- connect switch or fuse box before working on this equipment.

•Do not touch electrically hot parts.

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WARNING

To avoid receiving a high frequency shock, keep the TIG torch and cables in good condition.

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ROUTINE AND PERIODIC MAINTENANCE

1.Disconnect power supply lines to machine before performing periodic maintenance.

2.Periodically clean the inside of the machine with a low pressure air system. Be sure to clean the fol- lowing components thoroughly.

•Main Transformer

•Electrode/Gas Output Receptacle

•Polarity Switch

•Rectifier Assembly

•Arc Starter/Spark Gap Assembly

•PC Boards

•Fan Blades

3.Inspect welder output and control cables for fraying, cuts, and bare spots.

4.Keep TIG torch and cables in good condition.

5.Clean air louvers to ensure proper air flow and cool- ing.

6.The fan motor has sealed ball bearings which require no maintenance.

7.SPARK GAP ADJUSTMENT

The spark gap .020(.5mm) is set at the factory to a gap of 0.015 inches (0.4mm) See Figure D.1. This setting is adequate for most applications. Where less high frequency is desired, the setting can be reduced to 0.015 inches (0.4mm).

Use extreme caution when working with a high fre- quency circuit. The high voltages developed can be lethal. Turn the input power off using the dis- connect switch or fuse box before working inside machine. This is particularly important when work- ing on the secondary circuit of the high voltage transformer (T3) because the output voltage is dangerously high.

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Refer to figure D.1. Note in highly dirty environments where there is an abundance of conductive contami- nant's, use a low pressure air stream or a firm piece of paper to clean the spark gap. Do not disturb the facto- ry setting.

To check the spark gap:

-Turn off input power as specified above.

-Remove the right side panel from the machine, the spark gap box is located on the lower right side.

-Check the spark gap with a feeler gauge.

If adjustment is needed:

-Adjust the gap by loosening the allen head screw in one of the aluminum blocks, near the front of the unit and tighten the screw in the new position.

If the gap is correct:

-Replace the wraparound.

8.Inspect gas hose and inlet fitting for cracks or leaks.

9.Replace any unreadable labels or decal's.

10.Verify that the machine and welding circuit is prop- erly grounded.

FIGURE D.1 SPARK GAP

.020 Spark Gap

FAN MOTOR OR FAN BLADE REPLACEMENT

When installing a new fan blade or fan motor be sure to maintain proper shaft spacing per Figure D.2 below.

.30ł

FIGURE D.2

PRECISION TIG® 225

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Lincoln Electric SVM186-A service manual Safety Precautions, Routine and Periodic Maintenance, Spark GAP Adjustment
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SVM186-A specifications

The Lincoln Electric SVM186-A is a versatile and highly efficient welding machine that stands out in the competitive landscape of industrial welding equipment. Designed to meet the needs of both professionals and hobbyists, this machine combines advanced technology with robust construction, delivering outstanding performance in various welding applications.

One of the standout features of the SVM186-A is its multi-process capability. This welding machine can handle MIG, TIG, and Stick welding processes, making it suitable for a diverse range of projects, from light fabrication to heavy-duty work. This flexibility reduces the need for multiple machines, saving time and space for users who require versatility in their welding operations.

The SVM186-A is powered by a reliable and durable inverter technology, which ensures a stable arc and efficient operation across different materials, including stainless steel, aluminum, and mild steel. This inverter technology not only enhances performance but also reduces energy consumption, making it an environmentally friendly choice.

Another notable characteristic of the SVM186-A is its user-friendly interface. The digital display provides real-time information on voltage and wire feed speed, allowing welders to easily adjust settings for optimal results. This intuitive control panel design makes it accessible for both novice welders and seasoned professionals who value precision.

The machine is also built with safety features in mind. It comes equipped with overcurrent protection and thermal overload protection to prevent damage during operation. This ensures that users can work confidently, knowing that the equipment is designed to handle demanding tasks while prioritizing safety.

Portability is another advantage of the SVM186-A. Weighing in at a relatively light weight compared to other industrial welders, this machine is designed for ease of transport. Whether working on-site or in a workshop, welders can easily move the equipment as needed.

In summary, the Lincoln Electric SVM186-A is a sophisticated welding machine that merges technology and practicality. Its multi-process capability, inverter technology, user-friendly interface, safety features, and portability make it a top choice for those seeking dependable and efficient welding solutions. Whether for professional fabrication or personal projects, the SVM186-A is equipped to handle the demands of modern welding tasks with exceptional ease and effectiveness.