Condec DLR3110 - Manual (Page 45)

Maintenance and Service 41
10. 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 11-14).
11. 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.
12. Blow out any chips from the seat area using compressed air.
13. While holding the 4-40 tap steady and perpendicular to the seat, slowly turn until the tap starts to engage
the seat.
14. When the tap has engaged into the seat, use a small hammer and gently knock upward against the tap
handle to extract the seat.
15. After the seat has been removed, blow any remaining chips from the seat area.
7.2.4 ORION Manifold - Vernier Control Disassembly
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)
1-1/4" open end wrench
screwdriver (flat-blade)
socket wrench
isolation valve needle housing socket (PN 68508)
isolation valve needle housing socket (PN 68509)
1. With the manifold housing mounted in a vise, turn the vernier shaft (14) clockwise until the piston is
bottomed.
2. Loosen and remove the end cap (13) using a 1-1/4" wrench. At certain points during removal the end cap
will appear to lock up. If this occurs, rotate the shaft clockwise until the end cap is free to turn.
3. Remove the O-ring (29) from the end cap.
ORION-3A: Also remove the backup washer (38) from the end cap.
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 and pulling.
6. Remove the O-ring (32) from the piston groove.
7. To disassemble the end cap/shaft assembly, mount the end cap in the vise.
8. Loosen and remove the locknut (20) using the isolation valve housing socket (PN 59793), female socket
(65581), and socket wrench.
9. ORION-2C: Loosen and remove the end bushing (12) using the same socket. Remove the shaft (14).
R e m ove t h e M y l a r ®
1
b e a r i n g wa s h e r s ( 4 1 o r 4 2 ) f r o m b o t h s i d e s o f t h e s h a f t fl a n g e .
ORION-3A: Loosen and remove the end bushing (12) using the isolation valve housing socket (PN
68508) and socket wrench. Remove the shaft (14). Remove the ball bearings (41) 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).
ORION-3A: Also remove backup retainer (39) from inner groove of the end cap (13).
11. Wash all parts in solvent and blow dry with compressed air.
1. Mylar® is a registered trademark of EI DuPont.