Condec MPV-10K - Manual (Page 9)

Maintenance 7
12. When the tap has engaged into the seat, use a small hammer and gently knock upward against the tap
handle to extract the seat.
13. After the seat has been removed, blow any remaining chips from the seat area.
2.8 MPV-10K Manifold - Valve Seat Replacement
(MPV-10K - refer to the list of parts - Table 2-4 on page 19, and Figure 2-12 on page 21)
Tools required: A/R solvent (de-natured alcohol)
socket wrench
3/4" socket
needle housing socket (PN 65580)
hex wrench (.061")
torque wrench
needle-nose pliers
tube Fluorinated Krytox grease (PN 55593)
No. 43 drill
1. Install a new seat (4) by placing it into the seat with the needle-nose pliers. Ensure that the seat is
centered within the cavity and gently tap it with a blunt end of a drill bit to install.
2. Install the valve needle seat (5) with the smaller diameter end facing outward.
3. Install new O-rings inside and outside of the valve stem seat (5). Coat all O-rings and back-up rings
(7,9) with Krytox grease before installation. Make sure that the O-rings and back-up rings are installed in
the proper order.
4. Install the valve stem seat (10) by grasping the small diameter end with the needle-nose pliers and
positioning in the valve cavity, then gently pushing with the blunt end of a drill bit.
5. Disassemble the valve needle (3 or 6) and valve needle housing (2) and check for any burrs or dirt on the
threads which might interfere with smooth operation.
6. Clean both the valve needle (3 or 6) and valve needle housing (2) in solvent, dry the parts and apply a
small amount of Krytox grease to the valve needle threads before re-assembly.
7. Assemble the valve needle (3 or 6) into the valve needle housing (2) and turn until it stops.
8. Reinstall the needle/housing assembly into the valve cavity until finger tight.
9. Mount the manifold body (1) in a vise. Torque the needle/housing assembly to 325 in. lbs. using the
needle/housing socket (PN 65580).
10. Install the housing locknut (11) onto the valve needle housings (2) and tighten until snug with the 3/4"
socket.
11. Using the .050" hex wrench, install and tighten the lock nut (12) and set screw (13).
12. Install the nylon washer (14) and knob (15) over the valve needle (3 or 6) shaft, align the set screws (16)
with the indents and tighten with the .061" hex wrench.
2.9 ORION Manifold - Valve Adjustment Procedure (Customer Installation)
(ORION-2C Refer to the List of Parts - Table 2-1 on page 10, and Exploded View - Figure 2-6 on page 12)
(ORION-2D Refer to the List of Parts - Table 2-2 on page 13, and Exploded View - Figure 2-8 on page 15)
(ORION-3A Refer to the List of Parts - Table 2-3 on page 16, and Exploded View - Figure 2-10 on page 18)
NOTE: The following minimum customer supplied input pressure equipment is required. Input supply pressure with a
supply gauge and pressure regulator.
Tools required: hex wrench (.050")
hex wrench (.061")
1. Turn the supply pessure regulator off and vent manifold.
2. If not already done, remove the ORION input and vent valve (outer) knobs (3) using the .061" hex
wrench.
3. Using a .050" hex wrench, loosen the set screw (34) on each ORION input and vent valve locknut (2)
and turn each locknut clockwise to its stop.