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F-42

TROUBLESHOOTING AND REPAIR

F-42

 

MAIN TRANSFORMER REMOVAL AND REPLACEMENT PROCEDURE

(continued)

FIGURE F.16 – MAIN TRANSFORMER LOCATION

Main Transformer

1/2" Mounting

Bolts

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PROCEDURE

1.Using a 3/8” nutdriver, remove both sides of the case wraparound cover.

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

3.Locate the main transformer. See Figure F.16.

4.Label and disconnect leads X9, X10, 104B, & 104C. See Figure F.17.

5.Using a flathead screwdriver, Label and discon- nect lead H1B and other associated lead con- nected to the same terminal. These leads are connected to the ON/OFF switch. See Figure

F.17.

6.Using a 7/16” nutdriver, Label and disconnect leads X8, X7, X6, X5, X4, X3, & X2 from the switch assembly. Note washer position upon removal. See Figure F.18.

7.Using a 1/2” nutdriver, label and remove lead X1 from the output diode bridge rectifier.

8.Using a 5/16” Nutdriver, open the rear access panel. See Figure F.20.

9.Disconnect lead 118 from the rear access panel. See Figure F.21.

10.Feed lead 118 toward the inside of the machine.

11.Cut any necessary cable ties.

12.Remove any necessary wiring harnesses.

13.Disconnect lead 121. See Figure F.19.

14.Using a 1/2” nutdriver, remove the four main transformer mounting bolts and associated washers. See Figure F.16.

Power MIG® 215XT

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Lincoln Electric 11521 service manual Main Transformer Mounting Bolts

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.

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