Figure 8-4. Critical Flow Orifice Assembly - Teledyne T101 Operation Manual

Instrument Maintenance
210

Figure 8-4. Critical Flow Orifice Assembly

5. Take out the components of the assembly: a spring, a sintered filter, two
O-rings and the critical flow orifice.
You may need to use a scribe or pressure from the vacuum port to get the parts out
of the manifold.
6. Discard the two O-rings and the sintered filter.
7. Replace the critical flow orifice.
8. Re-assemble the parts as shown in Figure 8-4 using a new filter and O-
rings.
9. Reinstall the NPT fitting and connect all tubing.
10. Power up the analyzer and allow it to warm up for 60 minutes.
11. Perform a leak check (refer to Section 9.5).
Teledyne ML - T101 Operation Manual