Emerson Rosemount 370XA System Reference Manual page 152

370XA Gas Chromatograph
APRIL 2014
12.
13.
Remove the upper piston plate (1) and the three short pistons
(2) as one assembly.
Remove and discard the cushioning diaphragm (1), the primary
diaphragm (2), and the two o-rings (3).
System Reference Manual
7P00370-H01
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