Return to Section TOC

Return to Section TOC

Return to Section TOC

Return to Section TOC

Return to Master TOC

Return to Master TOC

Return to Master TOC

Return to Master TOC

F-13

TROUBLESHOOTING & REPAIR

F-13

 

 

 

AUXILIARY TRANSFORMER TEST (continued)

 

 

TABLE F.1 Auxiliary Transformer Test Points

 

 

 

 

 

 

 

TEST POINT

TEST POINT

EXPECTED VOLTAGE

 

 

 

 

 

 

 

H1 (1J7)

H2 (4J7)

200 - 208VAC

 

 

 

 

 

 

 

H1 (1J7)

H4 (3J7)

380 - 415VAC

 

 

 

 

 

 

 

H1 (1J7)

H5 (6J7)

440 - 460VAC

 

 

 

 

 

 

 

RED LEAD (1J1)

RED LEAD (3J1)

18VAC (SECONDARY)

 

 

On Control Board

On Control Board

 

 

 

 

 

 

 

7.If the correct test voltages are pre- sent the auxiliary transformer is good.

8.If any of the voltages are missing or very low, with the proper primary voltage applied, the auxiliary trans- former may be faulty. Replace.

9.If the auxiliary transformer tests good but does not function when connect- ed to the V250-S check the harness wiring to the auxiliary transformer. See wiring diagram.

INVERTEC V250-S

Page 45
Image 45
Lincoln Electric V250-S service manual Table F.1 Auxiliary Transformer Test Points