Lincoln Electric SVM153-A service manual Figure F Power Module Capacitor Lead Removal

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F-63	F-63
	TROUBLESHOOTING & REPAIR

POWER MODULE/OUTPUT RECTIFIER BRIDGE ASSEMBLY

REMOVAL AND REPLACEMENT (CONTINUED)

FIGURE F. 28 – POWER MODULE CAPACITOR LEAD REMOVAL

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POWER

MODULE

Refer to Figure F.28 for Steps 8-12.

8.Using the 7/16" wrench, loosen the nuts on the positive terminals of the power capaci- tors. Then remove the nuts, lock washers, and flat washers from the terminals where the positive straps connect to the power module PC board. Flip the straps out of the way. Also disconnect diode lead D3 (right side power module) and D4 (left side power module).

9.With the phillips screw driver, remove plug and lead assembly for P/J 50 (right side) or P/J51 (left side). Cut any necessary cable ties.

REMOVE LEADS

10.Disconnect the thermostat leads. Separate lead #249 on the right side. Cut any nec- essary cable ties.

11.Disconnect leads #14A and 13A at their in- line connectors (left side only).

12.With the 1/2" wrench, disconnect the bolt, lock washer and flat washer from the shunt at choke lead W11. Cut the cable tie and pull lead W11 through the toroid.

COMMANDER 500