AS3000™ Service Manual 0070-10-0683 6 - 9
Periodic Maintenance Check Valve Cleaning
5. Remove and clean check valve:
1. Using needle nose pliers, remove the bellows check valve by gently inserting into
round holes, then prying loose.
2. Separate valve holder, check valve and valve seat.
3. Clean check valve, valve seat, and valve holder using a cloth or equivalent moistened
with isopropyl alcohol .
4. Re-assemble check valve, valve seat, and valve holder.
5. Apply silicone lubricant PN 0510-00-0021 to valve seat o-ring.
6. Gently re-install bellows check valve assembly into port, assuring that there is no
damage to the o-ring. Push down until it bottoms out.
FIGURE 6-6 Bellows check valve
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