Lincoln Electric PRO-CUT 40, Operator'S Manual, Page: 22 / 30

– 22 –
Step
5 (con’t)
Test Check *
12 (neg) to T3
(pos)
(3 phase only)
13 (neg) to T1
(pos)
13 (neg) to T2
(pos)
13 (neg) to T3
(pos)
(3 phase only)
12 (pos) to T1
(neg)
12 (pos) to T2
(neg)
12 (pos) to T3
(neg)
(3 phase only)
Test Result
>1K ohms
<100 ohms
<100 ohms
>1K ohms
<100 ohms
>1K ohms
<100 ohms
>1 K ohms
<100 ohms
>1K ohms
<100 ohms
>1K ohms
<100 ohms
>1K ohms
Conclusion
OK
Shorted
OK
Open
OK
Open
OK
Open
OK
Open
OK
Open
OK
Open
Next
Test
Step
1-2
1-2
1-2
1-2
1-2
1-2
1-2
Repair Action
Replace D9
Inspect S1
Test C1 and
C2
Replace D9
Inspect S1
Test C1 and
C2
Replace D9
Inspect S1
Test C1 and
C2
Replace D9
Inspect S1
Test C1 and
C2
Replace D9
Inspect S1
Test C1 and
C2
Replace D9
Inspect S1
Test C1 and
C2
Replace D9
Inspect S1
Test C1 and
C2