3
Routine Maintenance
22
STERRAD
®
Sterilization System Routine Maintenance Guide
8. During the test, the pressure displayed on the LCD should remain
stable. This is the value of the Baratron. The zero pot should be
adjusted to equal the value measured by the TM-20 vacuum gauge.
9. After completion of the test, remove the gauge and re-assemble the
vacuum pump.
10. Perform a complete leak back test. If the test fails, inspect the
system for leaks.
11. An alternative test is to attach the T-piece to the chamber at the
Baratron connection.
Replace the HEPA Filter
1. Remove the HEPA filter body by rotating it counter-clockwise.
2. Remove the new filter from its package, then fasten it into its
receptacle. Firmly hand tighten the filter body.
Note
: Do not use Teflon
®
tape to re-seal the filter.
3. Discard the used filter according to hospital procedures.
Door and Chamber Procedures
Cleaning the door and process chamber requires a number of steps
including the removal of the electrode. The rear of the door should be
cleaned during PM 1 and the chamber and electrode examined and
cleaned if necessary during that PM. PM2 procedures require that the
electrode be removed and it, and the chamber, thoroughly cleaned.
During PM2 the door seal O-ring must be replaced. It should be
inspected and cleaned as needed during PM1.
The following three procedures, “Replace Door O-Ring Seal,” “Clean
Door Surface Assembly,” and “Clean Chamber Assembly,” require that
the front and top panels be removed and the door be moved to its service
position.
Upon completion of the chamber cleaning and reassembling the
electrode and spacers, perform the steps below.
Note
:
Prior to tightening the screws on the front panels
on a
Block 1.8 system, verify the alignment of the
cassette
through the cassette door by inserting a
cassette.
Teflon
®
is a registered trademark of the DuPont Corporation.
