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