Exploded View Of Valco Diaphragm Valve - ABB PGC2000 Operation And Service Manual

3. Using a 9/64-inch hex key wrench, remove the screw from the valve cap (see Figure 8-41).
Figure 8-41. EXPLODED VIEW OF VALCO DIAPHRAGM VALVE
4. Carefully remove the valve cap from the two alignment pins.
5. Set the cap aside, with the polished side up so that it does not get scratched.
6. Remove the old diaphragm.
7. Remove the plungers.
8. Install new plungers, ensuring that the counterbored end is up toward the valve cap (see Figure
8-41).
9. Install new diaphragm, ensuring that the marking "TOP" is toward the valve cap. If there is no
marking, ensure the indentation in the diaphragm is toward the valve body (see Figure 8-41).
10. Reinstall the valve cap, verifying that port 1 is correctly located.
11. Install the valve cap screw and tighten with a 9/64-inch hex key wrench.
8-64 2000-OSM, F1