11.
• Drip couple drops silicone oil on
the cleaned contact surfaces, avoid
getting oil the guide hole.
Place the semiconductor the right direction.10.
• Lightly polish the contact surface f
semiconductor (the nickel layer must not
be polished through) with abrasive cloth
P600 which fix flat surface.
12. Mount the guide pins the bottom heatsink. Smooth the
oil lightly over the whole surface using
lint-free paper.
• Lubricate directly after
polishing/cleaning, within minutes.
• void contact with the surfaces after
lubrication.
• Use well moistened lint-free paper.
Load side Line side
Load side
Thyristor
1
Line side
Thyristor
Black Blue
Brown Red
-. Preparation heat sink and semiconductor.
• void contact with surface.
The contact surfaces must dry before
lubrication. Then wipe the surface
in order get very thin layer oil.
• Clean all polished contact surfaces
carefully with Ethanol. Rem ove the faulty thyristors. Connect the gate cables.
13. Check the semiconductor's symbol and type
specification
