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F-73

TROUBLESHOOTING & REPAIR

F-73

 

 

MAIN TRANSFORMER REMOVAL AND REPLACEMENT

(MACHINE CODES ABOVE 10150)

(continued)

MAIN TRANSFORMER

SECONDARY LEADS

Figure F.24 Main Transformer Left Side

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7.Disconnect the thermostat leads from the thermostat mounted on the shunt assembly.

8.With the 3/4” wrench remove the shunt assembly from the negative output terminal. Take note of the by- pass connection on the negative ter- minal. Clear the shunt to allow access to the main transformer and lead connections. Cut any neces- sary cable ties.

9.With the 3/4” wrench remove the positive output lead from the positive output terminal. Take note of the by- pass connection on the positive ter- minal.

10.Locate and cut the necessary wire ties and slide the sleeving from the two transformer reactor lead splices.

11.With slot head screwdriver and 3/8” nut-driver remove the two reactor leads from output the rectifier leads. Label the leads for reassembly.

12.Using the 7/16” wrench remove the four secondary leads from the out- put rectifier module. Label the leads and note washer and lead place- ment for reassembly. See Figure F.24.

13.With 3/8” wrench remove the two screws mounting the transformer assembly to the base of the machine. See Figure F.25. Note: The machine will have to be tilted on its side to gain access to the bottom of the unit.

INVERTEC V250-S

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Image 105
Lincoln Electric V250-S service manual Figure F.24 Main Transformer Left Side