Condec DLR3110 - Manual (Page 46)

42 DLR3110 Rack Mount Digital Pressure Calibrator Manual
7.2.5 ORION Manifold - Vernier Control Reassembly
ORION- 2C: Refer to Section 7.3 on page 53 and Figure 7-1 on page 55.
ORION- 3A: Refer to Section 7.4 on page 57 and Figure 7-2 on page 59.
Tools required: tube fluorinated Krytox grease (PN 55593)
1-1/4" wrench
screwdriver (flat-blade)
socket wrench
isolation valve needle housing socket (PN 68508)
isolation valve needle housing socket (PN 68509)
torque wrench
1. Coat all O-rings with fluorinated Krytox grease before installing. Make sure that the O-rings and backup
rings/washers are installed in the proper order.
2. Install the small O-ring (27) into the end cap inner groove.
ORION-3A: Also install backup retainer (39) in inner groove of the end cap (13).
3. ORION-2C: Add Mylar washers (41) or (42) to each side of shaft (14). Apply a small amount of
fluorinated Krytox grease to the shaft threads and install the shaft (14) into the end cap.
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.
Install the end bushing (12) and tighten until snug using the isolation valve needle housing socket (PN
68509) and socket wrench.
4. Feel vertical motion of shaft (14). If motion exists add thicker washer (41) at step 3, otherwise continue
to step 5.
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.
7.2.6 ORION-2C Manifold - Valve Seat Installation
ORION- 2C: Refer to Section 7.3 on page 53 and Figure 7-1 on page 55.
ORION- 3A: Refer to Section 7.4 on page 57 and Figure 7-2 on page 59.
Tools required: needle-nose pliers
tube fluorinated Krytox grease (PN 55593)
No. 43 drill
A/R solvent (denatured 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.