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