Condec UPC5210 - Manual (Page 20)

Maintenance & Service 17
4. Loosen and remove the six screws that secure the two clamps that hold the intensifier and accumulator.
5. Remove the accumulator by sliding out.
6. Loosen the fitting nut at the intensifier end of the long 1/4" diameter tubing section that connects the
solenoid valve to the intensifier. There is no need to remove the tubing.
7. Remove the two clamps and the intensifier.
8. Using a 7/16" wrench, remove the following tubing sections:
• Vent port to ORION-3A manifold vent outlet (1/8" dia.)
9. 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.
10. Break the wire ties that hold the transducer wires so that the wires are free.
11. Using the 11/32" thin wrench, loosen and carefully remove the transducer from the ORION-3A
manifold.
12. Remove the panel knobs from the Coarse (pressure), Vernier and Vent valves using the .061" hex wrench.
13. Loosen and remove the two panel screws (PN 60837) from the panel front that secure the manifold to the
panel.
14. Remove the five retaining nuts and lock washers that secure the chassis to the panel.
15. Lift the chassis enough to allow the ORION-3A manifold to clear and remove the manifold.
16. Reposition the chassis over the mounting studs and secure with at least two nuts.
4.2.3 ORION-3A Manifold, Valve Seat Removal
Tools required: A/R solvent (de-natured alcohol)
socket wrench
3/4" socket
needle housing socket (65580)
isolation valve needle housing socket (PN 68509)
hex wrench (.050")
hex wrench (.061")
needle-nose pliers
tube fluorinated krytox grease (PN 55593)
electric hand drill
No. 43 drill bit
No. 4-40 tap
tap handle
small hammer
NOTE: See Table 4-2 on page 34 and Figure 4-2 on page 35 for additional parts information.
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. Loosen the 3/4" locknuts (1) on the pressure and vent valve threaded needle housings (10).
4. Using the needle housing socket (65580) and torque wrench, loosen and remove the needle/housing
assembly (10, 1).
5. To disassemble the isolation valves (two inner valves), first remove the valve needle (18) by turning the
gear clockwise.
6. Loosen and remove the valve housings (19) using the isolation valve housing removal socket (59793)
female socket (65581) and torque wrench.
7. Remove the valve stem seats (8) and valve needle seats (9) using the needle-nose pliers.
8. 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 (de-natured alcohol).
9. To remove valve seats (7) from either the COARSE (pressure), VENT or isolation valves, try blowing
compressed air through the inlet and outlet fittings. Otherwise, the center holes have to be drilled and a
tap used to extract the seat (Steps 10-13).
10. Using the electric hand drill with the No. 43 bit, carefully drill out the seat hole, ensuring that the drill
does not touch the hole in the manifold housing directly beneath the seat.