
Consolidated 2900-40 Series POSRV Maintenance Manual | 27
© 2019 Baker Hughes, a GE company. All Rights Reserved.
8. Remove the Main Valve Piston from the Cover Plate using
a dowel pressed through the center hole in the top of the
Cover Plate.
9. Remove the Cover Plate Gasket.
10. For “D” through “N” orifice, removed Disc Holder and
Guide.
For “P” through “T” orifices, install the Disc Holder
Removal Tool (BHGE P/N 4464604) in the top of the Disc
Holder as shown in Figure 14. Lift out and remove the
Guide and Disc Holder. Remove the Lifting Tool from the
top of the Disc Holder.
11. Lift the Guide off the Disc Holder. For spring assist valves,
remove Spring from Disc Holder.
14. Remove the disc from the disc holder as follows:
• Clamp the stem portion of the disc holder , disc end
up, firmly between two wooden V-blocks in a vise.
• Start inserting special drift pins into the holes in the
disc holder (Figure 15) with the tapered portion of the
pins working against the top of the disc, as indicated.
See Figure 61
and Table 18 in the Maintenance Tools
Lifting Tool
Guide
Disc Holder
Top of Base
Disc Holder
9
Disc Retainer
8
Thermodisc
7
Disc Holder
9
O-Ring Seat Seal
19
O-Ring Retainer
18
Retainer Lockscrew
17
Disc Holder
9
Disc Retainer
8
O-Ring Seat Seal
19
Disc
7
O-Ring Retainer
18
Retainer Lockscrew
17
Figure 14: Disc Holder Removal Tool
Figure 11: Thermodisc
Figure 12: O-Ring Seat (D-J Orifices)
Figure 13: O-Ring Seat (K-T Orifices)
XIII. Disassembly of the 2900-40 POSRV (Cont.)
Drift Pin
Drift Pin
Disc Holder
Disc
Figure 15: Removing the Disc with Drift Pins