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Vacuum Check Valve: Testing and Inspection


INSPECTION

1. REMOVE VCV
2. INSPECT VCV





(a) Connect the MITYVAC (Hand-Held Vacuum Pump) to port S of the VCV.
(b) Plug port Z completely with fingers.





(c) Perform pumping 3 times and apply vacuum as shown in the illustration.
(d) Stop the performing pumping and check the indicated value of the MITYVAC after about 10 seconds.

Standard value:
15-24 kPa (112-180mmHg, 4.4-7.1 in.Hg)


If the indicated value is not as specified, replace the VCV.
3. REINSTALL VCV