SERVICE MANUAL | 25 Frame Plunger Pumps
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2.40 Install valve plug into manifold and press into
place.
2.38 Insert valve assembly into manifold and press
into place.
2.39 Install valve plug backup ring, then O-ring,
and apply a lubricant to outside surface.
NOTICE:
Valve plug O-ring faces down when
installed in the manifold.
2.41 Install four (4) HSH screws by hand.
2.42 Using a 10 mm hex socket, tighten HSH
screws using appropriate cross-pattern
for even alignment. Torque to 355 in-lbs,
30 ft-lbs, or 40 Nm.
2.37 Apply a lubricant to the outside surface of the
discharge valve seat O-ring.
VALVE INSTALLATION
TORQUE SEQUENCE
Servicing the Valves