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F-66

TROUBLESHOOTING & REPAIR

F-66

 

 

MAIN TRANSFORMER REMOVAL AND REPLACEMENT

(MACHINE CODES BELOW 10150)

(continued)

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PROCEDURE

1.Remove input power to the V250-S.

2.Perform Filter Capacitor Discharge Procedure detailed in Maintenance Section.

3.Locate main transformer and associ- ated primary leads. See Figure F.20.

4.Disconnect transformer primary leads #201, #204, #205 and #208 from the power board.

Note: Leads #204 and #205 will have to be removed from the T3 cur- rent transformer. Cut any necessary

cable ties. Be sure to note the direction that the leads are thread- ed through the current trans -

former. Upon reassembly the leads must be threaded through correctly.

5.Locate main transformer and associ- ated secondary leads, reactor leads, and shunt connections. See Figure F.21.

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201

204

208 205

T3 CURRENT TRANSFORMER

MAIN TRANSFORMER

Figure F.20 Main Transformer Right Side

INVERTEC V250-S

Page 98
Image 98
Lincoln Electric V250-S service manual T3 Current Transformer Main Transformer