Troubleshooting & repair – Lincoln Electric V155-S User Manual

Page 60

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INV

ER

TEC

V1

55

Five Screws

Inve

ter B

oard

Three Screws

Ground

FIGURE F.12 – DOOR REMOVAL

INVERTER BOARD REMOVAL AND REPLACEMENT PROCEDURE (CONTINUED)

PROCEDURE

1. Disconnect power to the INVERTEC® V155-S.
2. Perform the Case Cover Removal Procedure.
3. Perform the Input Filter Capacitor Discharge

Procedure.

4. Perform the Input Board Removal Procedure.
5. Using phillips screwdriver, remove the three screws

mounting the inverter board to the right side case

cover. These screws can only be seen/accesed

through the left side of the machine with the left side

case cover removed. See Figure F.12.

6. Note location of ground lead upon removal of lower

right phillips screw.

Note: Pay attention to wiring diagram very closely.

When connecting cables from the Input

Board to the Power Switch. You must con-

nect the cables as shown in Figure F.9.

PWR 2(white) to 4

PWR 1(blue) to 1

PWR 4(white) to 5

PWR 3(blue) to 2

TROUBLESHOOTING & REPAIR

F-28

F-28

INVERTEC® V155-S

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