Owner manual

18 UPC5000/UPC5010 Operation & Maintenance Manual
4. Remove the self-sealing screw (36) that acts as the piston key.
5. Extract the piston (15) by partially screwing in the threaded end of the shaft (14) and pulling.
6. Remove the O-ring (32) from the piston groove.
7. To disassemble the end cap/shaft assembly, mount the end cap (13) in the vise.
8. Loosen and remove the locknut (20) using the isolation valve housing socket (PN 68509) and socket
wrench.
9. Loosen and remove the end bushing (12) using the same socket. Remove the shaft (14). Remove the
mylar bearing washers (41 or 42) from both sides of the shaft flange.
10. Use a small pick or screwdriver to remove the O-ring (27) from the inner groove of the end cap (13).
11. Wash all parts in solvent and blow dry with compressed air.
4.2.7 ORION-2C Manifold, Vernier Control Reassembly
Tools required: tube fluorinated Krytox grease (PN 55593)
1-1/4" wrench
screwdriver (flat-blade)
socket wrench
isolation valve needle housing socket (PN 68509)
NOTE: See Table 4-7 on page 32 and Figure 4-1 on page 33 for additional parts information.
1. Coat all new O-rings with fluorinated Krytox grease before installing.
2. Install the small O-ring (27) into the end cap (13) inner groove.
3. Add mylar washers (41) or (42) to each side of shaft (14).
NOTE: Part number and quantity will vary. Washers are used to adjust vertical play in shaft (14). Try one item (41) on
each side to start.
4. Apply a small amount of fluorinated Krytox grease to the shaft threads and install the shaft (14) into the
end cap.
5. Install the end bushing (12) and tighten until snug using the isolation valve needle housing socket (PN
68509) and socket wrench.
6. Feel vertical motion of shaft (14). If motion exists, remove end bushing (12) and add a thicker washer at
Step 3, otherwise continue to Step 7.
7. Install the locknut (20) and tighten until snug using the isolation valve needle housing socket (PN 68509)
and socket wrench.
8. 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.
9. Install the self-sealing screw (36) and tighten until snug.
10. Apply a thin coat of fluorinated Krytox grease and install the O-ring (29) on the end cap/shaft assembly,
install into manifold and tighten until snug.
4.2.8 ORION-2C 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 (.061")
torque wrench
socket wrench
3/4" socket
needle housing socket (PN 65580)
isolation valve needle housing socket (PN 68509)
NOTE: See Table 4-7 on page 32 and Figure 4-1 on page 33 for additional 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 a blunt end of a drill bit to install.
2. Install the valve needle seat (9) with the smaller diameter end facing outward.