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