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Instruction Manual
D100310X012
D Valve/Actuator Assembly: If the actuator and valve are shipped together as a control valve assembly, it has been
adjusted at the factory, and may be installed in the pipeline. After installing the valve in the pipeline, refer to the
Loading Connection procedures.
D Actuator Mounting: If the actuator is shipped separately or the actuator has been removed from the valve, it is
necessary to mount the actuator on the valve before placing the valve in the pipeline. Refer to the following
actuator mounting procedures before placing the valve in service. It is recommended that you perform the Bench
Set Spring Adjustment procedures in this section to confirm that the actuator is adjusted correctly for the valve
travel.
D Positioner: If a positioner is installed, or is to be installed on the actuator, refer to the positioner instruction manual
for installation. During the adjustment procedures, it will be necessary to provide a temporary loading pressure to
the actuator diaphragm.
D Handwheel Cap: If the handwheel cap (key 247, figures 11, 13, or 21) is not in place, install the cap by pushing it on
by hand until it snaps into place.
Mounting the Actuator on the Valve
CAUTION
The 667 actuator spring load pushes the stem down out of the actuator yoke (see figure 2), and it can come in contact with
the valve stem during actuator mounting.
If the valve stem is allowed to remain in the up position (towards the actuator) during actuator mounting, it can interfere
with the actuator stem during mounting. It is possible to damage valve stem threads or bend the valve stem. Be sure the
valve stem is pushed down (into the valve body), away from the actuator while mounting.
It may be necessary to apply a temporary loading pressure to the actuator to move the actuator stem away from the
valve during installation.
If it is not possible to provide a temporary loading pressure, be very careful when lowering the actuator over the valve
stem to prevent damage to valve stem and threads.
WARNING
When moving the actuator stem with loading pressure applied, exercise caution to keep hands and tools out of the
actuator stem travel path. If the loading pressure is accidently disconnected, personal injury and property damage may
result if something is caught between the actuator stem and other control valve parts.
1. Provide a vise or some other method of supporting the valve and the weight of the actuator during assembly. For
direct or reverse acting valves, push the valve stem down away from the actuator while mounting the actuator.
2. Screw the stem locknuts all the way onto the valve stem. With the concave side of the travel indicator disk (key 34)
facing the valve, install the travel indicator disk on the valve stem. (Note: The travel indicator disk is not used with
size 87 actuators.)
3. Lift or hoist the actuator onto the valve bonnet:
a. For size 87 actuators: Slowly lower the actuator down onto the valve while guiding the valve stem into the
opening in the end of the actuator stem (see figure 4). Once the actuator is in place, insert the cap screws and
tighten the hex nuts, securing the actuator to the bonnet.
667 Actuator (Size 30/30i - 76/76i and 87)
June 2017
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