How to Use Your Lincoln SP 100 Welder

lincoln sp 100 welder

To properly use your Lincoln SP 100 welder, here are a few tips. First, make sure the welder is plugged into a grounded receptacle. Next, make sure that the power switch is in the OFF position, and that the work cable is not connected to the input power. It is also important to place the welder in a dry location with free air circulation. Also, you should position the machine in a place that will minimize the amount of dirt and smoke that will be drawn into the rear louvers. This will reduce the chance of dirt accumulation, which could cause overheating.


The Lincoln SP 100 welding machine can weld mild steel using the GMAW process or a self shielded innershield electrode process. It has a wire drive feed roll that can accommodate two different wire sizes. The tip of the wire should be cut off to a size of about 1/4″ to 3/8″ (6 mm – 10 mm) before welding.

Both the Hobart 140 and Lincoln SP 100 welding machines have a wire feed speed (“WFS”) control that gives you infinite adjustment of the wire feed speed. This allows you to fine-tune the arc in any direction. Both welders produce good arcs when set correctly.

The SP-100 can be operated on a 25-amp branch circuit, and its nominal voltage range is 115 to 125 volts, 60 Hertz. The SP-100 is capable of outputs of up to 100 amps and a duty cycle of 30%. It also has specific accessories, including shielding gas and thermal protection.

115 vac input power

The Lincoln SP 100 welder comes with a 115V input power and a Magnum MIG-150 gun, making it perfect for small-shop or home projects. The tool is also great for auto-body work and light maintenance. This welder comes with a gun connector that is standard. Its ergonomically designed handle grips offer a secure grip and reduce operator fatigue. Its trigger position is also comfortable and feels good right from the first minute.

The Lincoln SP 100 welder can weld mild steel with the GMAW process or with the self-shield electrode process. The wire drive feed roll can accommodate two different wire sizes. These sizes are stenciled on the drive roll. Wires should be trimmed to a diameter of 1/4″ – 3/8″ (6 – 10 mm) before welding.

The Lincoln SP 100 welder can be plugged into 115V AC power through a receptacle located on the rear panel. The input power is connected to the main transformer, fan motor, and control board. The main transformer then applies a rectified DC voltage that is then filtered and applied to the machine’s output ter minals.

The SP 125 Plus requires 115V input power and produces 25-125 amps of welding power. It is suitable for flux-cored and MIG applications, and can be used for a variety of tasks from home repair to body work in automotive shops. Even farm equipment can be repaired using this versatile tool. It comes with everything you need to weld, including a gun, cable assembly, hand shield, and input power cable.

Safety precautions

When using your Lincoln SP 100 welder, it is important to know some basic safety precautions. For example, it is important to use oil-free protective garments, especially if you are welding in confined areas. You should also wear ear plugs and safety glasses that have side shields.

Ensure that you are working on a clean, dry surface. If you are welding on thin sheet metal, you should check that the wire feeds smoothly. If it isn’t, it can cause burn-through problems. Also, be sure the cable is straight and free of bends and loops. A good fitup means that the wire feeds smoothly.

You should also ensure that you have an appropriate nozzle for the job. The nozzle is a key part of your welding process and should be changed regularly. If you’re working with metal, a conical or tapered nozzle is a good choice. A flux-cored nozzle is another option.


Troubleshooting your Lincoln SP 100 welder involves identifying the source of wire feed problems. This issue can be caused by a number of factors, including liner blockages, a poorly trimmed wire guide, or an incorrect size wire guide. Checking the instructional manual can help you identify the cause of wire feed problems, and then you can take appropriate action.

Another problem that can affect the welding arc is the improper tension of the wire feed. Improper tension can affect the welding arc and make it appear irregular. To correct this problem, loosen the drive rolls and re-thread the wire through the feeder. Make sure that you follow all safety procedures.

When wire feed problems occur, the Lincoln SP-135T will not feed. It may pop or cut in strangely. This is a common problem for these machines, and it can make a job more difficult. Also, check the feed speed control and cable gun. The spool tension may be too low, or the motor shaft might get bind. The problem is usually easy to fix.

You may also need to clean the welding wire. The wire must be clean and in good condition to produce a proper weld. If it is dirty or rusted, it will not be able to draw a spark. You should either clean the wire or replace it. Welding wire is available in rolls. This wire can be reused for other jobs, so make sure to buy a high-quality wire.