Condec DLR3110 - Manual (Page 44)

40 DLR3110 Rack Mount Digital Pressure Calibrator Manual
7.2.2 ORION-2C (PN 55283) or ORION-3A (PN 55287) Manifold Removal
Tools required: Phillips screwdriver
11/32" wrench or nutdriver
.061" hex wrench
adjusting screwdriver (small flat blade)
11/32" open end wrench (thin)
7/16" open end wrench
1. Vent any remaining gas from the system to atmosphere.
2. Remove cover from chassis as described in Section 7.2.1 on page 39.
3. Remove the test port to Orion tubing section using a 7/16" wrench.
4. If the transducer is wired via a connector, remove the connector by turning counter-clockwise. If the
transducer is hard-wired, loosen and remove the four transducer wires (red, white, green, black) from the
terminal block, TB1, on the CPU board, using the small flat-blade screwdriver.
5. Break the wire ties, if applicable, that hold the transducer wires so that the wires are free.
6. Using the 11/32" thin wrench, loosen and carefully remove the transducer from the Orion-2C manifold.
7. Remove the tubing sections from the vent and pressure inlet fittings on the Orion-2C, using a 7/16"
wrench.
8. Remove the panel knobs from the Coarse (pressure), Vernier and Vent valves using the .061" hex wrench.
9. Loosen and remove the two panel screws (PN 60837) from the panel front that secure the manifold to the
panel.
10. Remove the manifold from the front panel.
7.2.3 ORION Manifold - Valve Seat Removal
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: A/R solvent (denatured alcohol)
socket wrench
3/4" socket
female socket (65581)
needle housing socket (65580)
isolation valve needle housing socket (PN 59793)
hex wrench (.050")
hex wrench (.061")
torque wrench
needle-nose pliers
tube fluorinated Krytox grease (PN 55593)
electric hand drill
No. 43 drill bit
No. 4-40 tap
tap handle
small hammer
1. Secure the manifold by its center portion, in a bench vise, with the valve knobs pointing upward.
2. Using the .061" hex wrench, loosen and remove the knob inserts (4) from the pressure and vent valve
stems.
3. Using the .050" hex wrench, loosen and remove the set screw (34) and lock nut (2).
4. Loosen the 3/4" locknuts (1) on the pressure and vent valve threaded needle housings (10).
5. Using the needle housing socket (65580) and torque wrench, loosen and remove the needle/housing
assembly (10, 1).
6. To disassemble the isolation valve, first remove the valve needle (18) by turning the gear clockwise.
7. Loosen and remove the valve housings (19) using the isolation valve housing removal socket (59793)
female socket (65581) and torque wrench.
8. Remove the valve stem seats (8) and valve needle seats (9) using the needle-nose pliers.
9. Remove the inner and outer O-rings (28, 27) and back-up rings (31, 30) from the valve stem seats and
wash all parts in solvent (denatured alcohol).