Troubleshooting & repair, Case cover removal procedure (continued) – Lincoln Electric V155-S User Manual

Page 40

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INV

ER

TEC

V1

55

Five Screws

Inve

ter B

oard

Three Screws

Ground

FIGURE F.1 – CASE COVER SCREW LOCATIONS

CASE COVER REMOVAL PROCEDURE (CONTINUED)

PROCEDURE

1. Disconnect power to the INVERTEC® V155-S.
2. Using a phillips head screwdriver remove the five

screws securing the case cover sides together. See

Figure F.1.

Note:

The two bottom screws are machine screws that

thread into nuts. The nuts will fall out of the right

side.

3. Carefully remove the left side case cover from the

machine.

Note:

Be careful. The case back and fan will be loose

when the cover is removed.

4. Perform the Input Capacitor Discharge Procedure

steps 3 thru 7.

5. Using a phillips screwdriver, remove the three

screws securing the Inverter board to the right side

case cover.

Note:

These screws can only be accessed from the

inside of the machine and only after the left side

case cover has been removed. It may be nec-

essary to cut the plastic tie that secures the Input

power cord to the top bracket

6. Note placement of ground lead secured by lower

front phillips screw on inverter board for re-assem-

bly.

7. Remove case back and fan. Lay unit on the left

side and remove the right side cover.

TROUBLESHOOTING & REPAIR

F-8

F-8

INVERTEC® V155-S

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