Removing Lsv From The Analyzer; Installing Lsv On The Analyzer - ABB PGC5000 Series Service Instructions Manual

PGC5000
PGC5000 Series Service Instructions
17. Slide the first cleaned seal over the stem using the "A" end of Seal Insertion Tool TL-791A006B. The 30° angle (pointed
end) of the seal must face the Belleville springs. Figure 7.11 shows the orientation of the seal.
Stem
Figure 7.11. Installing the Stem Seals
18. Slide the cleaned sample chamber over the stem onto the seal.
19. Slide the second cleaned seal over the stem using the "B" end of Seal Insertion Tool TL-791A006B. The 30° angled
(pointed end) of the seal faces out, away from the sample chamber. Figure 7.11 shows the orientation of the seal.
20. Lightly lubricate the threads on the body.
21. Retract the stem until it is flush with the front of the seal.
22. Screw the body into the flange against the vaporizer chamber until tight.
23. Push the stem into place.
24. The sample chamber should be loose in the assembly at this point. If not, back out the tensioning nut until the sample
chamber is loose. Use the end of a 0.156 Allen wrench in the slot of the tensioning nut to adjust to the point of
eliminating the longitudinal play of the sample chamber.
25. Tighten the tensioning nut in 24 1/4-turn increments (6 turns total) to load the seals.
26. Lightly lubricate the inside bore of the cylinder.
27. Align the fittings on the cylinder with the sample chamber tubes, or with air lines if servicing.
28. Slide the cylinder onto the piston and the body.
29. Install two cone point set screws into the cylinder and tighten into the groove on the body.
30. Reinstall tubing to the LSV, being careful to connect each line to the proper connection on the LSV.
31. Close the isothermal oven door.
7.6.3 Removing the LSV from the analyzer
1. Stop analysis at the end of a cycle.
2. Remove power from the analyzer.
3. Allow all temperature zones to cool, maintaining flow while the columns are cooling.
4. Turn off carrier, sample, and air to the analyzer.
5. Open the isothermal oven door.
6. Label all connections to the Liquid Sample Valve.
7 Disconnect all tubing from the Liquid Sample Valve.
8. Mark the analyzer and flange to ensure the flange is reinstalled in the correct orientation.
9. Remove the four screws holding the flange to the side of the analyzer.
10. Remove the Liquid Sample Valve to the workbench. The insulation and insulation retainer may move during LSV removal;
retain them for later installation.
11. Close the isothermal oven door.
7.6.4 Installing the LSV on the analyzer
1. Open the isothermal oven door.
2. Install the Liquid Sample Valve on the analyzer, making sure the insulation and insulation retainer are in the proper
location around the vaporizer.
3. Orient the flange so that the marks made at valve removal are lined up. This should have the sample chamber vertical,
with the air connections at the top of the valve and the connection of the vaporizer chamber at the top.
4. Install the four screws holding the flange to the side of the analyzer and tighten the screws.
SI/PGC5000-EN, Rev B
Seal
Seal
7 Subassembly repair
66