Secondary Rectifier Card Z003 - Kemppi FASTMIG X 450 Service Manual

2. SECONDARY RECTIFIER CARD Z003

Use a digital multimeter to test the secondary unit diodes. Diodes are in groups, so you can measure them in four
•
separate groups
Disconnect main transformer secondary side wires from Z003 card
•
Remember to test diodes both ways: forward bias and reverse bias
•
Measurings:
Positive test lead
X1
X2
X3
X4
Z003, heatsink
Z003, heatsink
Z003, heatsink
Z003, heatsink
Kemppi OY
SERVICE MANUAL
FASTMIG X
Negative test lead Result
Z003, heatsink 0,3-0,7VDC
Z003, heatsink 0,3-0,7VDC
Z003, heatsink 0,3-0,7VDC
Z003, heatsink 0,3-0,7VDC
X1 no value
X2 no value
X3 no value
X4 no value
30 (37)