2000-OSM, F1 8-7
10. Lightly lubricate the body O-rings.
11. Install the body O-rings onto the body and the piston.
12. Insert the piston and the piston rod into the sleeve, being careful not to cut the O-ring. Fully
insert the piston until it contacts the stops.
13. Stack the 15 Belleville springs onto the 1/4-inch thin wall plastic tubing, as shown in Figure 8-5.
Figure 8-5. STACKING THE BELLEVILLE SPRINGS
14. Using the tubing only as a guide, slide the Belleville springs over the stem into the bore of the
body.
15. Install the rear valve seat over the stem and let it rest against the Belleville springs. Do not
allow the seat to scratch the stem.
16. Clean all the exposed area of the stem with acetone to ensure the stem and groove are free of
grease and contamination.
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.
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.
20. Install the vaporizer chamber into the flange.
21. Lightly lubricate the threads on the body.
22. Retract the stem until it is flush with the front of the seal.
23. Screw the body into the flange against the vaporizer chamber until tight.
24. Push the stem into place.
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