Troubleshooting, Symptoms Course of Action

E-2		TROUBLESHOOTING		E-2

	Observe all Safety Guidelines detailed throughout this manual

	PROBLEMS	POSSIBLE CAUSE	RECOMMENDED
	(SYMPTOMS)	POSSIBLE CAUSE	COURSE OF ACTION
	(SYMPTOMS)		COURSE OF ACTION

FUNCTION PROBLEMS

Machine fails to hold the “heat” constantly.

Rough or dirty commutator.

Brushes may be worn down to limit of life.

Brush springs may be broken.

Field circuit may have variable resis- tance connections or intermittent open circuit, due to loose connec- tions or broken wire.

Electrode or work lead connections may be poor.

Wrong grade of brushes may be installed on generator.

Field rheostat may be making poor contact and overheating.

“Current Control” may not be operat- ing properly.

“Current Control” brushholder con- tact springs may be worn out or missing. Contact surface may be dirty, rough and pitted.

“Current Control” brushholder sup- port stud and mating contact sur- faces may be dirty or pitted and burned.

Engine running at varying speeds.

True and clean commutator.

Replace brushes.

Replace brush springs.

Check field current with ammeter to discover varying current. This applies to both the main generator and exciter.

Tighten all connections.

Use only the recommended Lincoln brushes.

Inspect and clean rheostat.

Check for loose or missing set screw in control handles.

Inspect. Replace needed parts. Clean internal contact surface of control device. Do not lubricate. Smooth rough surfaces.

If brushholder internal contact sur- face is pitted and burned, replace the brushholder and support stud. If the contact surface is dirty, clean off the brushholder stud and internal contact surface. Apply mixture of three parts silicone grease and one part zinc powder (by weight) to stud.

Set welder controls for maximum output and weld. Then, while weld- ing, check engine rpm. The engine should be running at full speed. If indicator shows a significant differ- ence, consult your engine manual.

CAUTION

If for any reason you do not understand the test procedures or are unable to perform the tests/repairs safely, contact your Local Lincoln Authorized Field Service Facility for technical troubleshooting assistance before you proceed.

SAE400 WELD’N AIR

IM581 specifications

The Lincoln Electric IM581 is an innovative solution designed for advanced welding applications. This multi-process welder stands out with its versatility, allowing users to perform MIG, TIG, and stick welding seamlessly. Such adaptability makes it ideal for a wide range of industries, from automotive to construction.

One of the hallmark features of the IM581 is its intuitive digital interface. The display is user-friendly, allowing operators to easily select welding parameters and monitor real-time performance metrics. This digital technology not only enhances ease of use but also improves precision during welding, reducing the likelihood of errors.

Another significant characteristic of the IM581 is its robust power range. The machine is equipped to handle a wide spectrum of materials and thicknesses, making it suitable for both thin-gauge and heavy-duty applications. The power output is adjustable, enabling users to optimize their welding for different types of metal such as steel, aluminum, and stainless steel.

The IM581 is also designed with mobility in mind. It features a compact and lightweight construction, ensuring it can be easily transported between job sites. Despite its portable design, the machine does not compromise on performance; it delivers stable arcs, ensuring clean and consistent welds with minimal spatter.

In terms of safety, the Lincoln Electric IM581 incorporates several protective features. It includes thermal overload protection, safeguarding the machine from excessive heat during extended use. Additionally, it has built-in safety mechanisms to prevent voltage spikes, enhancing longevity and reliability.

Moreover, the IM581 is compatible with advanced welding technologies, such as Lincoln Electric's proprietary "Infinite Voltage Control" which allows users to finely adjust the output voltage for optimal arc stability. This feature is particularly beneficial for applications requiring precise control and quality.

Overall, the Lincoln Electric IM581 is an exceptional welding machine that combines versatility, user-friendly operation, and superior performance. Whether it's critical high-strength applications or routine repairs, this welder is engineered to meet and exceed the expectations of professionals in various industries. Its advanced technologies and dependable characteristics make it a valuable addition to any welding toolkit.