19 | GE Oil & Gas
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5. Fasten the two posts (V) to the inside piston (W) with two 8-32
x 1-in SHCS (X).
5a. Insert the assembly into pilot body block (F).
5b. Fasten the outside piston (U) to the inside piston/post
assembly with two 8-32 x 1/2-in SHCS (T).
6. Slide -012 O-ring (CC) onto the outside piston (U) and into the
groove near its base.
6a. Install one washer (Z) onto the shaft of the outside piston
with the grooves facing upward.
6b. Install the convoluted diaphragm (AA) onto the shaft of the
outside piston (U) as shown.
6c. Install one washer (J) onto the shaft of the outside piston
(U) with the grooves facing downward.
6d. Assemble nut (Y) onto the outside piston (U) and torque it
to 140-160 in. lbs.
6e. To assemble the inside piston, repeat Steps 6 to 6d.
U
F
T
V
W
X
Z
U
W
Y
J
AA
CC
Z
Y
Convolute
Convolute
