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F-48TROUBLESHOOTING AND REPAIRF-48

CONTROL BOARD REMOVAL AND REPLACEMENT (continued)

FIGURE F.17 - CONTROL BOARD LOCATION

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STATU

S

THERM

AL

LINC

ELOLN

ECTRIC

WARNING

REMOTE

POWER

ON

OFF

Control Board

PROCEDURE

1.Remove input power to the POWER WAVE 355M/405M.

2.Using a 5/16” nut driver remove the case wrap- around cover.

3.Perform the Input Filter Capacitor Discharge Procedure detailed earlier in this section.

4.Locate the control board behind the front panel of the machine. See Figure F.17.

5.Using a 5/16” nut driver remove the two screws from the bottom of the front of the machine. See Figure F.18.

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FIGURE F.18 CASE FRONT SCREW REMOVAL

STATUSTHERMAL

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Phillips Head

Screws

_ +

5/16"

Mounting Screws

POWER WAVE 355M/405M

Phillips Head

Screws

Page 94
Image 94
Lincoln Electric 405M, 355M service manual Control Board, Procedure