Instruction Manual
D102013X012
8560 Valve
June 2017
12
3. With the disc in the closed position, remove line bolting, remove the control valve assembly from the pipeline, and
place it on a flat working surface with the seal retainer ring facing up.
4. If a grounding strap is used (see figure 5), remove the hex nut to release the end of the strap. Remove the clamp
(key 130) and strap (key 131).
5. Note the orientation of the actuator with respect to the valve body (see figure 6), and remove the actuator cover to
note the lever orientation with respect to the valve drive shaft (see figure 7).
When re‐assembling the control valve assembly, you will need to correctly position the marks on the end of the valve
drive shaft and the valve body with respect to the actuator case and lever arm. Refer to the Actuator Mounting section
and figure 7 for the location of the marks on the valve drive shaft end. Additional information is provided in the
actuator manual to assist with disassembly, re‐assembly, and travel adjustments. When removing the valve drive shaft
from the actuator lever, do not loosen the actuator turnbuckle adjustment. Remove the cap screw from the actuator
lever (figure 7).
CAUTION
When removing the actuator from the valve, do not use a hammer or similar tool to drive the actuator lever off the valve
shaft. Driving the lever off the valve shaft could damage the disc, seal ring, bearings or valve body.
If necessary, use a wheel puller to remove the actuator lever from the valve shaft. It is okay to tap the wheel puller screw
lightly to loosen the lever, but hitting the screw with excessive force could damage the disc, seal ring, bearings or valve
body.
6. Remove the actuator mounting screws (key 14, figure 14).
7. Remove the valve from the actuator.
Packing Maintenance
Standard graphite packing is composed of all conductive packing rings. PTFE‐filled packing has a partially conductive
packing ring (such as a carbon‐filled PTFE female adaptor) to electrically bond the shaft to the valve body.
If the valve is equipped with the optional ENVIRO‐SEAL Packing System, refer to the separate ENVIRO‐SEAL Packing
System for Rotary Valves instruction manual (D101643X012) for packing maintenance procedures.
When replacing the packing, it is recommended to remove the control valve assembly from the pipeline because
valve/actuator adjustments must be made with the valve out of the pipeline.
Disassembly
Key numbers and part locations are shown in figure 8 unless otherwise noted.
1. Remove the packing flange nuts (key 101 ) and the packing flange (key 102).
2. Remove the old packing rings, using a formed hook.
CAUTION
Carefully use the hook. Avoid damaging the drive shaft or packing box wall. Scratches on valve surfaces can cause leakage.
(Note: the packing box ring (Key 107) can remain in place when replacing packing only.)
3. Clean all accessible metal parts and surfaces to remove particles that would prevent the packing from sealing.
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