32
UPS3000/UPS3110/UPS3210 Operation and Maintenance Manual
Install the end bushing (12) and tighten until snug using the isolation valve needle housing socket (PN
68509) and socket wrench.
ORION 3A: Hold shaft (14) vertically with end that goes through end bushing (12) toward ceiling. Place
light coating of grease on threads of shaft. Place thick coating of grease on top of shaft bearing surface.
Place 16 ball bearings on shaft surface. Allowing grease to hold ball bearings in place. Slide end bushing
(12) over top of shaft and down to contact top of ball bearings. Rotate shaft assembly 180°, placing end
bushing towards the floor. Be careful not to displace ball bearings. Place thick coating of grease on shaft
and bearing surface. Place sixteen chrome ball bearings (41) on greased surface, allowing grease to hold
them in place. Install shaft with bearings into end cap. Install the end bushing and tighten until snug
using the isolation valve needle housing socket (PN 68508) and socket wrench.
4. ORION 2C: Feel vertical motion of shaft (14). If motion exists, add thicker washer (42) at step 3,
otherwise continue to step 5.
ORION 3A: Tighten so that shaft rotates, but should be firm. Verify no up and down movement. If there
is up and down movement, retighten end bushing.Install the Locknut (20) and tighten until snug using
the Isolation Valve Needle Housing Socket (PN 59793), Female Socket (PN 65581) and Socket Wrench.
5. Install the locknut (20) into end cap (13) and using the isolation valve needle housing socket (PN 68509)
and torque wrench. Torque to approximately 325 in. lbs. (may not get to torque on all sub-assemblies).
6. 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.
7. Install the self-sealing screw (36) and tighten until snug.
8. Install the O-ring (29) on the end cap/shaft assembly, install into manifold and tighten until snug.
ORION 3A: Also install backup washer (38) on the end cap/shaft assembly.
4.2.6
ORION Manifold - Valve Seat Installation
ORION 2C: Refer to “ORION 2C Valve Assembly Parts List” on page 45 and Figure 4-1 on the following
foldout 11 x 17 sheet.
ORION 3A: Refer to “ORION 3A Valve Assembly Parts List” on page 47 and Figure 4-2 on the second foldout
11 x 17 sheet.
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)
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.
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 that 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
INPUT
(pressure) 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 finger tight.
9. Mount the manifold body (16) in a vise. For the
INPUT
(pressure) and
VENT
valves only, torque the
needle/housing assembly to 325 in-lb. using the needle housing socket (PN 65580).
10. Install the housing lock nuts (1) onto the housing (10) and tighten until snug with the 3/4" socket.
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