Nc Isolation Valve; Pcas - Fluke Calibration 4322-SYS-NAVAIR Service Manual

4322
Service Manual

NC Isolation Valve

Use the following instructions and reference Figure 4-19 to replace the NC isolation
valve ().
1. With a soft grip pair of channel locks, turn the NC isolation valve ()
2. Remove the four screws () that attach base of the NC isolation valve to the
3. Remove the valve body () from the manifold assembly.
4. Put the new valve body () into the manifold assembly.
5. Install the four screws () that attach base of the NC isolation valve to the manifold
6. With a soft grip pair of channel locks, turn the NC isolation valve () clockwise to
Isolation Valve
Shown Fully Assembled

PCAs

Use the following instructions to gain access to the electronics box to replace the
processor pca, the main pca, or the power supply pca. These pca assemblies listed can be
accessed from the front of the electronics box without any additional tear down. If the
amplifier pca assemblies on the back of the main pca need to be replaced, the electronic
box needs to be removed to remove the screws that attach it to the metal pca cover.
4-36
counterclockwise to remove.
manifold assembly.
assembly.
install.
1
Figure 4-19. NC Isolation Valve
2
3
4
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