Condec PIN8010 - Manual (Page 15)

Maintenance & Service 9
7. Install the end bushing (12) and tighten until snug using the isolation valve needle housing socket (PN
68508) and socket wrench.
8. Tighten so the shaft rotates but is firm. Feel the vertical motion of the shaft (14). If motion exists,
retighten the end bushing.
9. Install the locknut (20) into the end cap (13) using the isolation valve needle housing socket (PN 68509)
and torque wrench. Torque to approximately 325 in/lbs.
10. Install the O-ring (32) in the piston groove and install the piston (15) into the vernier cavity. Ensure that
the piston keyway is facing the hole into which the self-sealing screw (36) is assembled.
11. Install the self-sealing screw (36) and tighten until snug.
12. Apply a thin coat of fluorinated Krytox grease and install the O-ring (29) and backup washer (38) on the
end cap/shaft assembly. Install into the manifold and tighten until snug.
4.2.6 Orion 3A Manifold, Valve Seat Installation
Tools required:
• needle-nose pliers
• tube fluorinated Krytox grease (PN 55593)
• No. 43 drill
• A/R solvent (de-natured alcohol)
• hex wrench (.050")
• hex wrench (.061")
• torque wrench
• socket wrench
• 3/4" socket
• needle housing socket (PN 65580)
• isolation valve needle housing socket

(PN 68509)
• female socket (PN 65581)
Note

See Table 4-2 on page 22 and Figure 4.3 on page 22 for additional
Orion 3A parts information.
1. Install a new seat (7) by placing it into the seat well with the needle-nose pliers. Ensure that the seat is
centered within the cavity and gently tap it with the blunt end of a drill bit to install.
2. Install the valve needle seat (9) with the smaller diameter end facing outward.
3. Install new O-rings (28, 27) inside and outside of the valve stem seat. Coat all O-rings and back-up rings
(30, 31) with fluorinated Krytox grease before installation. Make sure the rings are installed in the proper
order.
4. Install the valve stem seat (8) 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. For pressure (coarse) and vent valves (two outer valves), disassemble the valve needle (11) from its
housing (10) and check for any burrs or dirt on the threads which might interfere with smooth operation.
6. Clean both the needle (11) and housing (10) in solvent, dry the parts and apply a small amount of
fluorinated Krytox grease to the needle threads before reassembly.
7. Assemble the valve needle (11) into the valve needle housing (10) and turn it until it stops.
8. Reinstall the needle/housing assembly into the valve cavity until it is finger tight.
9. Mount the manifold body (16) in a vise. For the pressure (coarse) and vent valves only, torque the
needle/housing assembly to 325 in-lb. using the needle housing socket (PN 65580) and torque wrench.
10. Install the housing lock nuts (1) onto the housing (10) and tighten with the 3/4" socket until snug.
11. Using the .050" hex wrench, install and tighten the lock nut (2) and set screw (34).
12. Install the knob insert (4) over the valve needle (11) shaft. Align the set screws (23) with the indents and
tighten with the .061" hex wrench.
13. For the isolation valves (two inner valves), install the needle housing (19) and tighten until snug using
the isolation valve needle housing installation socket (PN 68509) and torque wrench.
Important

There is no specified torque, so use care when tightening so as not to break the socket nibs.
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