ASP STERRAD 100, Service Manual

Page: 163 / 309

Remove/Replace the Feedthrough
Replacement of the feedthrough requires the use of the Feedthrough Kit
listed in Tools and Test Equipment Some additional supplies are needed
as listed below:·
F
Side shield safety glasses
F
Rubber gloves
F
Protective Smock
F
Duct tape
F
Scale that measures grams.
F
Cork or cap that fits tightly in or on the feedthrough opening.
Remove the Feedthrough
1. Shut down the system and allow it to cool completely before
proceeding.
2. Remove the screws fastening the RF match to the chamber.
3. Remove the RF cable.
4. Remove the shelves and electrode from the chamber.
5. Cover the inside machinery so that the debris from drilling and/or
removing the epoxy does not sift into the vacuum pump.
6. Using Visegrip pliers, grasp the feedthrough from outside the
chamber. Turn the feedthrough forcefully to break the bond. You
may need to hit the feedthrough with a hammer from inside the
chamber until it falls out.
4 4
Note : If the feedthrough does not come out, you may need to
drill it out. Be sure not to drill through the chamber.
7. On Block 2 systems, using Visegrip pliers, break off the feedthrough
from the outside and inside.
4 4
Note:
The entire epoxy “plug” must be hammered or drilled out
of the feedthrough port. Be sure you do not damage the
chamber.
8. Block 2 only. CAREFULLY use a punch to remove epoxy from the air
holes in the feedthrough port lip. Make sure these holes are
completely free of epoxy as these holes release trapped air when the
new epoxy is applied.
Removal/Replacement Door and Chamber Subsystem
ASP Service Guide rev D STERRAD® 100 Sterilizer 7-23