Rebuilding The Valve/Siphon Tube Assembly - CaptiveAire EWC Installation, Operation And Maintenance Manual

Rebuilding the Valve/Siphon Tube Assembly

Only use new components when rebuilding a valve. All necessary replacement components are
included in the Valve Rebuild Kit P/N 87-120067-001. Do not rebuild a valve with any other
components (e.g used or aftermarket).
When rebuilding the valve, use Valve Rebuild Kit P/N 87-120067-001.
1. Inspect valve for signs of corrosion or damage before rebuilding.
2. Remove the siphon tube by unthreading counter-clockwise from the valve.
3. Secure the valve body.
4. Depress the spring retainer and remove the retaining ring check (using bent snap-ring pliers, external).
Refer to Figure 52.
5. Slowly release the spring retainer and remove the check, retainer, and spring.
6. Depress the top of the valve stem to remove it (the valve stem may fall out when the Retaining Ring
Check is removed).
7. Discard the removed components.
8. Clean the valve and siphon tube, including internals, threads and sealing surfaces, by flushing
thoroughly with warm soapy water. Rinse with clean water.
9. Blow out any residual moisture with dry air or nitrogen, and ensure the valve is completely dry.
10. Insert a new valve stem from the bottom of the valve.
11. Place the valve onto a 3/4" pipe section, spare socket, or equivalent to keep valve stem from falling
out.
12. Insert a new valve spring onto the top of the valve stem.
13. Place a new spring retainer onto the valve spring.
14. Press the retainer down on the valve stem and install a new retaining ring check onto the valve stem
using the bent tip snap-ring pliers.
15. Ensure the retaining ring check is securely in place in the groove on the valve stem is completely
closed.
16. Apply a light coat of Parker Super O-Lube on the entire surface of the valve-to-cylinder O-ring and
install the O-ring on the valve body.
17. Thread the siphon tube in the base of the valve until bottomed out.
The rebuild kit includes:
Retaining Ring Check - 1
Spring Retainer - 1
Valve Spring - 1
Valve Stem with O-ring Installed - 1
Cylinder-to-Valve O-rings - 2 (1 Spare)
Tube of Parker Super O-Lube - 1
CAUTION!
Figure 52 - Valve Assembly
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