Instruction Manual
D103416X012
SS-84PSV4 Valve
September 2022
7
Replacing Packing
Disassembly
WARNING
Observe the steps in the WARNING at the beginning of the Maintenance section.
1. Isolate the control valve from the line pressure, release pressure from both sides of the valve body, and drain the
process media from both sides of the valve. If using a power actuator, release pressure from the actuator and
disconnect the pressure lines from the actuator. Use lock-out procedures to be sure that the above measures stay in
effect while you are working on the equipment.
2. Remove the actuator cover (key 33 from the Fisher 1052PSV Size 60 Rotary Actuator Instruction Manual
(
)).
WARNING
When the actuator is removed from the valve, the ball/shaft assembly may suddenly rotate, with a shearing, cutting
motion, which could result in personal injury. To avoid injury, carefully rotate the ball to a stable position after the actuator
is removed.
NOTICE
When removing the actuator from the valve, do not use a hammer or similar tool to drive the lever or actuator off the valve
shaft. Driving the lever or actuator off the valve shaft could damage the ball, seal, and valve.
If necessary, use a puller to remove the lever or actuator from the valve shaft. It is okay to tap the puller screw lightly to
loosen lever or actuator, but hitting the screw with excessive force could damage the ball, seal, and valve.
3. Remove the clamped lever (do not loosen the actuator turnbuckle adjustment), and remove the actuator mounting
fasteners. (If necessary, refer to the Fisher 1052PSV Size 60 Rotary Actuator Instruction Manual (
) for
assistance.
WARNING
Personal injury could result from packing leakage. Do not scratch the drive shaft or packing box wall while removing
packing parts in the following procedure.
Note
Do not change the position of the stop cap screws and nuts (key 17, 19, and 18) in the following step.
4. Remove the live-loaded packing parts (see figure 7, keys 27, 26, 160, 16, and 25)
5. Remove the hex nuts (key 14) and bottom flange (key 5). The bushing (key 7) should come out with the bottom
flange, otherwise remove the bushing now.
6. After removal of the spiral wound gasket (key 11), inspect the sealing surfaces on the bottom flange and the valve
body.