Emerson Fisher SS-264 Instruction Manual page 12

SS-264 Valve
September 2021
4. Loosen and remove the body/bonnet nuts (key 117).
5. Using a safe lifting method, lift the bonnet (key 18) vertically off of the valve body (key 12); make sure the ball/shaft
assembly (key 8) does not lift with the bonnet.
CAUTION
Ensure the bonnet flange remains level and parallel to body (key 12) mounting face. Failure to maintain parallel will lead to
binding of the drive shaft to the bonnet. If done improperly, this could damage the ball, shaft, bonnet, and body.
6. Remove cap screw (key 14) and washer (key 13) from the ball/shaft assembly (key 8).
7. Install lifting plate, GE48210, onto the drive shaft with a 316 stainless 5/8­11x1.50 cap screw (not provided). The
1/2­13 threaded hole of the lifting plate should be centered directly over the ball sphere. Torque to 163 N•m (120
lbf•ft).
8. Install a 1/2­13 eye bolt (not provided) into the ball/shaft lifting plate. Torque to 92 N•m (68 lbf•ft).
9. Lift the ball/shaft assembly (key 8) vertically out from the valve body.
CAUTION
While lifting the ball/shaft assembly, ensure the sphere does not come into contact with the valve body. Damage to the
sphere will affect the seat leakage performance of the valve.
10. Remove the lower thrust washer (key 1), follower bearing (key 9), and ball Belleville spring (key 4).
11. Remove qty sixteen socket head cap screws (key 27) from the seal (key 25).
12. Remove seal (key 25), taking care not to damage the guide diameter of the valve body.
13. Completely remove any remaining flat sheet gasket (key 26) material from the valve body gasket surface.
WARNING
Observe the steps in the WARNING at the beginning of the Maintenance section of this manual.
CAUTION
Exercise care to avoid damaging components in the following procedure.
Thrust Washer Dimension Check Instructions
Thrust washer (key 28) is a machine-to-fit component and is unique for each valve assembly. The washer is cut to the
specific thickness required to center the ball in the valve body based on dimensions measured from the valve
assembly.
1. Gather precise measurements, ±0.025 mm (±0.001 in), of the following five dimensions (see figure 5):
B The distance from the top of the body (key 12) to the seal ring (key 25): 230.91 mm (9.091 in) nominal.
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Instruction Manual
D103565X012