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F-22

TROUBLESHOOTING AND REPAIR

F-22

 

CONTACTOR TEST (continued)

FIGURE F.7 – CONTACTOR TERMINALS AND LEADS

106B

106C

107A

Output

Contactor

PROCEDURE

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1.Remove the input power to the Power MIG® 215XT machine.

2.Using the 5/16” Nutdriver, remove the tool tray.

3.Locate and remove leads 106B, 106C and 107A from the contactor coil terminals. See Figure F.7. See the Wiring Diagram.

4.Using the 7/16” wrench, remove one lead from the contactors large terminals. See Figure F.7. See the Wiring Diagram.

5.Carefully apply 12 VDC to the contactor coil leads. (small terminals)

CAUTION

Do not leave the 12 VDC applied to the contac- tor coil for a prolonged period of time (15 sec- onds maximum). Damage to contactor may result.

6.If the contactor does not activate when the 12VDC is applied, the contactor is faulty. Replace.

7.If the contactor activates when the 12VDC is applied, check the resistance between the two large terminals with the contactor activated. The resistance should be very low (0 to 1 ohm).

8.If the resistance is “high” or “open” between the two large terminals when the contactor is acti- vated, the contactor is faulty. Replace.

9.If the contactor activates and the resistance between the terminals is low when the 12 VDC is applied, the contactor is good

NOTE: When the contactor is not activated, the resistance between the terminals should be very high (infinite). If the resistance is always low, the contacts are “stuck” and the contactor is faulty. Replace.

10.When the test is complete, replace leads 106B, 106C and 107A.

11.Replace the lead previously removed from one of the contactor large terminals.

12.Replace the tool tray.

Power MIG® 215XT

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Lincoln Electric 11521 service manual Contactor Test
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11521 specifications

The Lincoln Electric 11521 is a highly regarded choice among welders and metal fabricators, known for its reliability and efficiency. This portable MIG welder excels in delivering professional-grade results, making it suitable for both beginners and experienced welders. One of the standout features of the Lincoln Electric 11521 is its user-friendly design, which facilitates ease of use and enhances the overall welding experience.

Equipped with a powerful 180 amp output, the Lincoln Electric 11521 is capable of tackling a wide range of welding applications. It operates on a standard 230-volt outlet, allowing users to work on various materials, including mild steel, stainless steel, and aluminum, with thicknesses up to 5/16 inch. This versatility is crucial for those who handle different types of projects, from automotive repairs to home improvement tasks.

The welder employs a spool gun for welding aluminum, ensuring a smooth and efficient feeding of the wire. This technology mitigates the problems commonly associated with feeding aluminum wire through a regular gun, providing a seamless experience. Additionally, the Lincoln Electric 11521 features an adjustable welding speed and voltage, enabling users to fine-tune their settings to match the specific requirements of each project. This adaptability leads to better penetration, bead shape, and overall weld quality.

Another important aspect of the Lincoln Electric 11521 is its durability. Constructed with high-quality materials, this welder is designed for tough jobs and can withstand the wear and tear associated with heavy use. The unit's compact size and lightweight design further enhance its practicality, making it easy to transport between job sites or store when not in use.

Safety is a crucial element in welding, and the Lincoln Electric 11521 does not compromise on this aspect. It features a thermal overload protection system, which prevents damage to the machine by shutting it down in case of overheating. The welder also includes a gas-saving mode that intelligently reduces the gas flow during idle times, maximizing efficiency.

In summary, the Lincoln Electric 11521 is a versatile and reliable MIG welder that caters to a wide range of welding needs. With its powerful output, user-friendly features, advanced technologies, and robust safety mechanisms, it is an excellent investment for professionals and hobbyists alike looking to achieve high-quality welds with ease.
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