ASP sterrad NX, Service & Troubleshooting Manual

Page: 67 / 126

Subassembly Removal and Replacement
5
Replacement:
1. Clean the inside of the Ultratorr fitting.
2. Lightly coat a new O-ring with approved vacuum grease and place
the O-ring in the Ultratorr fitting.
3. Reinstall the spacer in the Ultratorr fitting.
4. Place the threaded collar around the base of the new valve and
insert the valve into the Ultratorr fitting. Press down until it is
seated firmly.
5. Use the soft-jaw pliers to tighten the collar.
6. Wrap the threaded nipple on the valve body with new Teflon
®
tape.
7. Screw the HEPA filter onto the threaded nipple. The filter should
be hand-tightened only.
8. Plug P4 into the valve connector.
Vent Valve HEPA Filter
Required Tools: Teflon
®
tape.
Preparation: 1. Turn the sterilizer OFF.
2. Remove the front top panel and the top panel.
Removal: Unscrew the HEPA filter from the valve body.
Replacement: 1. Wrap the threaded nipple on the valve body with new Teflon
®
tape.
2. Screw the HEPA filter onto the threaded nipple. The filter should
be hand-tightened only.
Teflon
®
is a registered trademark of the DuPont Corporation.
STERRAD
®
NX
™
Service Guide 67