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Instruction Manual
D103565X012
6. Tighten cap screws (key 27) into the anchor ring (key 12B) tapped holes, using a multiple pass, cross pattern
tightening procedure increasing the bolt torque at each pass until all the bolts are at the initial torque value of
45 N•m (33 ft•lbf) and a final torque value of 92 N•m (68 ft•lbf). Then switch to a circular tightening pattern and
continue tightening until there has been no bolt movement at the final torque of 92 N•m (68 ft•lbf) for a complete
circular pass. Use a 3/8" Allen socket for these socket head cap screws.
Note
Rotational orientation of the seal ring is not important. There are 32 tapped holes on the anchor ring in case an anchor ring thread
is damaged out in service; the other set of 16 holes could be used by simply rotating the seal ring one hole.
Figure 8. Ball/Shaft Assembly Orientation
7. Install the Belleville spring (key 4), follower bearing (key 9), and thrust washer (key 1) as shown in figures 9 and 18.
8. Install lifting plate on the keyed end of the ball/shaft assembly as per the previous Disassembly section steps 7 and
8.
9. With the ball facing 180 degrees away from the seal, carefully lower the ball/shaft assembly (key 8) into the valve
body until the follower shaft of the ball/shaft assembly (key 2) is guided and fully seated in the follower bearing. See
figure 8.
10. Loosen and remove the cap screw and lifting plate.
11. Lubricate the 5/8-11x1.00 cap screw (key 14) with Nuclear Grade anti-seize lubricant (key 36) and install the washer
(key 13) and cap screw (key 14) into the end of the drive shaft. Tighten to 163 N•m (120 ft•lbf).
12. Install the special thrust washer (key 28) onto the drive shaft and mate against the ball.
13. Install the drive bearing (key 2) onto the drive shaft and mate against the special thrust washer (key 28).
SS-264 Valve
September 2021
15
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