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MAINTENANCE

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SAFETY PRECAUTIONS

SENSE LEAD FUSE

 

WARNING

ELECTRIC SHOCK can kill.

• Only Qualified personnel should perform this maintenance.

Turn the input power OFF at the disconnect switch or fuse box before working on this equipment.

Do not touch electrically hot parts.

There should never be any current flowing through the sense leads! There is a fuse located in the sense lead circuit that is mounted in the wire drive Connection Box which protects the sense lead circuit from weld current due to incorrect configuration. If this fuse ever opens, check the sense lead configuration to ensure proper connections. The fuse must be replaced with a comparable fuse with a rating of less than 1 amp before welding. The fuse being open or missing would have the same effect on the welding as having a disconnected sense lead.

ROUTINE MAINTENANCE

Check weld cables, control cables and gas hoses for cuts.

Clean and tighten all weld terminals.

Inspect and clean drive rolls and inner wire guide and replace if worn.

PERIODIC MAINTENANCE

Every six months check the motor brushes. Replace them if they are less than 1/4" long.

Every year inspect the gearbox and coat the gear teeth with a moly-disulfide filled grease. DO NOT use graphite grease.

CALIBRATION SPECIFICATION

All calibration is factory set on the Power Feed 10S.

To verify the wire feed speed:

Press the INCH DOWN switch and adjust the wire feed speed to 100 in/min (2.54m/min).

Measure the actual wire feed speed with a calibrated wire feed speed tachometer.

The measured wire feed speed should be within ±2% of the set value.

POWER FEED 10S

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Lincoln Electric IM850-A manual Periodic Maintenance, Calibration Specification, Sense Lead Fuse

IM850-A specifications

The Lincoln Electric IM850-A is a cutting-edge inverter-based multi-process welder that has made a significant impact in the welding industry. Known for its versatility and robust features, the IM850-A caters to a wide array of welding applications, making it an ideal choice for both professional welders and hobbyists alike.

One of the standout features of the IM850-A is its multi-process capability. This welder supports MIG, TIG, and Stick welding processes, providing users with the flexibility to tackle various projects with ease. Whether you are working with thin sheet metal or heavier materials, this machine is designed to deliver superior performance across all welding disciplines.

The IM850-A is powered by Lincoln Electric's advanced inverter technology, which not only enhances efficiency but also significantly reduces the overall size and weight of the unit. This technology allows the welder to operate with a high power-to-weight ratio, making it portable and easy to transport to job sites or workshops. The inverter design also helps in maintaining a stable arc, ensuring high-quality welds with minimal spatter.

In terms of user interface, the IM850-A features an intuitive control panel that simplifies operation. With straightforward settings for amperage and voltage, welders can easily adjust parameters to suit different applications. Additionally, the digital display provides real-time feedback, allowing users to make precise adjustments on the fly.

Another notable characteristic of the IM850-A is its durability. Built with rugged materials, this welder is designed to withstand the rigors of daily use in demanding environments. The machine is also equipped with thermal overload protection, which safeguards it from overheating and extends its lifespan.

The IM850-A supports a wide range of welding materials, including mild steel, stainless steel, and aluminum. Its capability to handle various wire diameters enhances its versatility further, allowing for efficient operation with different welding wire types.

Safety is paramount in the design of the IM850-A. It comes equipped with advanced safety features, including an automatic shut-off function and protective circuitry, ensuring that users can work with confidence.

Overall, the Lincoln Electric IM850-A is a powerful and highly versatile welding machine that combines advanced technology with user-friendly features. Its combination of multi-process capability, inverter technology, and rugged durability makes it a top choice for those looking to achieve high-quality welds across a wide array of applications. Whether you're a seasoned professional or just starting in the world of welding, the IM850-A stands out as a reliable and efficient tool for any welding project.