GE Becker HPP-5 Installation And Maintenance Manual page 15

6c� Install one washer (Z) onto the shaft of the outside piston with
the grooves facing downward�
6d� Tighten the assembly with 1/2-20 hex jam nut (YY) onto the
outside piston (I) to 95-100 in� lbs�
6e� To assemble the inside piston (W), repeat Steps 6-6d�
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Step 5. Fasten the two posts (V) to the inside Ppston (W) with two
8-32 x 1/2-inch socket head cap screws (X)�
5a� Insert the assembly into pilot body block (F)�
5b� Fasten the outside piston (I) to the inside piston/post
assembly with two 8-32 x 1-inch SHCS (T)�
Step 6. Slide -012 O-ring (CC) onto the outside piston (I) and into
the groove near its base�
6a� Install one washer (Z) onto the shaft of the outside piston (I)
with the grooves facing upward�
6b� Install the convoluted diaphragm (AA) onto the shaft of the
outside piston as shown�
Becker HPP-5 High Pressure Positioner Maintenance and Operation Manual | 14