Lincoln Electric SVM135-B Switch Board and Filter Capacitor Removal, 11/12 15/16 19+, Nylon Screw

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F-72 TROUBLESHOOTING AND REPAIR F-72

SWITCH BOARD AND FILTER CAPACITOR REMOVAL

AND REPLACEMENT (continued)

FIGURE F.21 — SWITCH BOARD AND FILTER CAPACITOR REMOVAL AND REPLACEMENT.

MOUNTING

SCREW (4X)

MOLEX PLUG

SWITCH

BOARD

11/12

OR

15/16

19+

20-

NYLON

SCREW (2X)

13/14

OR

17/18

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REMOVAL PROCEDURE

NOTE: Observe all static electricity precau- tions.

1.Remove input power to the Power Wave 455.

2.Using the 3/8 in. nutdriver, remove the case top and sides.

3.Perform the Capacitor Discharge

Procedure.

4.Remove the molex plug from the top of the switch board. Refer to Figure F.21.

5.Using the 7/16 in. wrench, remove leads 11/12 or 15/16 from the switch board.

6.Using the 7/16 in. wrench, remove leads 13/14 or 17/18 from the switch board.

7.Using the 7/16 in. wrench, remove leads 19+ and 20- from the switch board capacitor connection bolts.

POWER WAVE 455/POWER FEED 10