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13 D04-991-2400 5/1/04
D/G-04 Service (Fluid End)
6. Reinstall Valve Plate (12) and
Manifold (3)
a. Reinstall the valve plate (12), with the valve assemblies
installed as outlined above, onto the diaphragm plate
(18) and alignment pins (29).
Tighten the two socket-head capscrews evenly and
snugly to compress the outer diaphragm beads and hold
the valve plate in place.
b. Reinstall the O-rings (4) on the front side of the valve
plate. Use petroleum jelly or lubricating gel to hold them
in place.
c. Reinstall the manifold onto the valve plate.
d. Insert all capscrews (1), with washers (2), around the
edge of the manifold, and alternately tighten opposite
bolts until all are secure. Torque to 50 ft-lbs (70 N-m).
e. Recheck all bolts for tightness and proper torque.