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9. Remove the 5 philips screws securing the Main PCA Assembly to the spine assembly.
10. Disconnect the Sieve Bed Balance Valve from J14 on the Main PCA. This connection can be
found on the rear side of the Main PCA.
11. Disconnect the Compressor wire harnesses from J20 and J4 on the Main PCA. These connections
can be found on the rear side of the Main PCA.