Valco Cincinnati VC350A, Руководство пользователя

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Section 9 — Maintenance VC350A Flexoseal
®
System
Valco Cincinnati
9-6
Assembly
To assemble the 08 glue valve (Figure 9-3), follow these steps:
1. Install a new O-ring (3).
2. Inspect item 2 (O-ring) for wear or damage. (Replace the O-ring if necessary.)
3. Place the lower metal backup ring (5) into the cartridge. The bevelled side should face up and the flat side
face down.
4. Place a new PTFE seal into the cartridge, with the grooved side facing down.
5. Using the seal mounting tool (794xx893), seat the seal in the cartridge.
6. Place and seat a second PTFE seal on top of the first one in the same manner as step 4.
7. Insert the upper metal backup ring (7) into the cartridge with the groove facing down.
8. Either by hand or with the mounting tool (794xx893), press the packing cartridge into the valve body.
9. Place the spring in the recessed area of the tension nut (11) then thread the tension nut (containing the
spring) into the valve body.
Note! Do not tighten at this time. Tightening may damage the packing seals (6).
10. Install a new seat (8) on the bottom exterior of the valve body.
11. Lubricate the shaft (9) with either a light machine oil or white lithium grease.
12. Insert the shaft into the body by feeding it through the seat (8) and then pressing upwards on the bottom of
the shaft until it stops.
13. Screw the threaded portion of the shaft through the PTFE seals (6) to prevent damage.
Note! When only .9" (22 mm) of the shaft remains outside the valve body, the threaded part of the shaft is
past the packing and may be pressed the rest of the way through the body.
14. Using the spanner wrench (794xx891), tighten the tension nut (11).
15. Align the holes in the seat (8) with the holes in the valve body.
16. Place the spring sleeve (12) over the shaft with the flange end facing down.
17. Place the spring over the sleeve.
18. Screw the stroke-adjustment nut (14) onto the shaft threads with the flat parts of the nut at the top.
Note! It may be necessary to hold the shaft stationary, using a screwdriver in the slot at the top of the shaft
while installing this item.
19. Turn the stroke-adjustment nut all the way down until it stops, then back it off (counterclockwise) slightly
less than one-half turn.
20. Using a gauge (794xx923), set the gap (.160) between the spring sleeve (12) and the stroke-adjustment nut
(14).
Note! The shaft must remain stationary while the stroke-adjustment nut is being turned counterclockwise.
21. Secure the stroke-adjustment nut (14) in place with the 10 mm locknut (15). Hold the stroke-adjustment nut
with an adjustable wrench and the shaft with a screwdriver.
Note! Ensure that neither the stroke-adjustment nut or the shaft turns while the locknut is tightened.