Dräger Medical Zeus Technical Documentation Manual page 106

Maintenance procedures
98
Figure 15 Sintered filter
4. Screw in the new sintered-metal filter of the O2 NIST connection hand-
tight.
5. Check that the O-ring on the NIST connection is undamaged and replace
it as necessary.
6. Screw in the two fixing screws of the NIST connection for O2. Make sure
the O-ring is not trapped.
7. Replace the other sintered-metal filters one after the other.
8. Check that the marking on the gas inlet matches the marking on the fitted
NIST connections (see
der connections for N2O and O2 on the second line.
Figure 16 NIST and cylinder connection markings
9. Carry out leak test and gas-type test as per test instructions.
Figure 16). The marking also applies to the cylin-
Zeus
5133.001