Condec MPV-10K - Manual (Page 6)

4 Orion/MPV-10K Adjustment & Maintenance Manual
11. Using the 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 (7).
12. Blow out any chips from the seat area using compressed air.
13. While holding the 4-40 tap 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.
2.4 ORION Manifold - Vernier Control Disassembly
Tools required: A/R solvent (de-natured alcohol)
open end wrench (1-1/4")
flat blade screwdriver
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. Remove the piston (15) by partially screwing in the threaded end of the VERNIER shaft (14) 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 68509) and socket
wrench.
9. ORION-2C, ORION-2D: Loosen and remove the end bushing (12) using the same socket. Remove the
shaft (14). Remove the mylar bearing washer (41 or 42) from both sides of the shaft flange.
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.
2.5 ORION Manifold - Vernier Control Reassembly
(ORION-2C: Refer to the List of Parts - Table 2-1 on page 10, and Exploded View - Figure 2-6 on page 12)
(ORION-2D: Refer to the List of Parts - Table 2-2 on page 13, and Exploded View - Figure 2-8 on page 15)
(ORION-3A: Refer to the List of Parts - Table 2-3 on page 16, and Exploded View - Figure 2-10 on page 18)
Tools required: tube fluorinated krytox grease (PN 55593)
open end wrench (1-1/4")
flat blade screwdriver
socket wrench
isolation valve needle housing socket (PN 68508)
isolation valve needle housing socket (PN 68509)
torque wrench
1. Coat all O-rings and backup washer/retainers with 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).