Lincoln Electric IM526-B Welding System User Manual


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Repair Action
Replace D13, inspect S1,
test C1 and C2
Replace D13, inspect S1,
test C1 and C2
Replace D13, inspect S1,
test C1 and C2
Replace D13, inspect S1,
test C1 and C2
Replace D13, inspect S1,
test C1 and C2
Replace D13, inspect S1,
test C1 and C2
Replace D13, inspect S1,
test C1 and C2
Replace D13, inspect S1,
test C1 and C2
Replace D13, inspect S1,
test C1 and C2
Replace D13, inspect S1,
test C1 and C2
Replace D13, inspect S1,
test C1 and C2
Replace D13, inspect S1,
test C1 and C2
Check
9 (pos) to H1 (neg)
9 (pos) to A (neg)
9 (pos) to H5 (neg)
12 (neg) to H1 (pos)
12 (neg) to A (pos)
12 (neg) to H5 (pos)
9 (neg) to H1 (pos)
9 (neg) to A (pos)
9 (neg) to H5 (pos)
12 (pos) to H1 (neg)
12 (pos) to A (neg)
12 ( pos) to H5 (neg)
Conclusion
OK
Shorted
OK
Shorted
OK
Shorted
OK
Shorted
OK
Shorted
OK
Shorted
OK
Open
OK
Open
OK
Open
OK
Open
OK
Open
OK
Open
– 19 –
Step
7
Next
Test
Step
cont
4-5
cont
4-5
cont
4-5
cont
4-5
cont
4-5
cont
4-5
cont
4-5
cont
4-5
cont
4-5
cont
4-5
cont
4-5
cont
4-5
Test
D13 Input
Rectifier
Test
Result
>1K ohms
<100 ohms
>1K ohms
<100 ohms
>1K ohms
<100 ohms
>1K ohms
<100 ohms
>1K ohms
<100 ohms
>1K ohms
<100 ohms
<100 ohms
>1K ohms
<100 ohms
>1K ohms
<100 ohms
>1K ohms
<100 ohms
>1K ohms
<100 ohms
>1K ohms
<100 ohms
>1K ohms
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