Lincoln Electric SVM208-A service manual Capacitor AND/OR Diode Bridge, Removal and Replacement

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F-38 TROUBLESHOOTING AND REPAIR F-38

CAPACITOR AND/OR DIODE BRIDGE

REMOVAL AND REPLACEMENT (continued)

FIGURE F.12 – LOCATION AND DISCHARGING THE FIELD CAPACITOR

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Attachment for

202

202A

(+)

Attachment for 201 201A

(-)

Jumper

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Cable Tie

Capacitor

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PROCEDURE - CAPACITOR REMOVAL AND REPLACEMENT

1.Remove the engine spark plug wire.

2.With the 3/8” nut driver, remove the 4 sheet metal screws that hold the top cover to the con- trol box. Remove the top cover.

3.Discharge the field capacitor by connecting the jumper wire clips on the black and the red wire terminals on the top of the capacitor. See Figure F.12 for location. Leave the clips on for at least 5 seconds, then remove.

4.Both the capacitor and the diode bridge are mounted in a molded plastic holder. To remove it, pull out on the top of the holder, then slide it upward.

5.Snap the capacitor out of the assembly.

6.Loosen the two screws on the top of the capac- itor. Lead 202A (Red) attaches to the positive

(+) terminal. Leads 201 and 201A (both Black) attach to the negative (-) terminal.

7.To replace the capacitor, reattach the leads to their respective terminals (202A Red to positive (+); 201 and 201A Black to negative (-) and tighten the screws securely. Snap the capacitor back into the molded plastic holder and slide the holder back into position in the panel. Replace the top cover of the control box and tighten down the 4 sheet metal screws with the 3/8” nut driver.

BULLDOG® 140