October 2015
Service Instructions
127072E Rev. C
4
Section 1: Introduction
Introduction
1�8 General Tool Information
1�8�1 Tools: All tools/hexagons are American Standard inch. Large adjustable wrench,
two (2) large screwdrivers, Allen wrench set, set of open/box end wrenches, rubber
or leather mallet, torque wrench (up to 1200 foot pounds / 1627 N-m), breaker
bar, and a drive socket set. For recommended tool and wrench sizes refer to
Section 6 Tables 6.3 through 6.10.
1�9 Actuator Storage
For applications where the actuator is not put into immediate service it is recommended
that the actuator be cycled with at least once per month. Indoor storage, if available, is
recommended for all actuators. Care should be taken to plug all open ports on actuator
and controls to keep out foreign particles and moisture. Also, actuators should not be
stored in an atmosphere harmful to resilient seals. For extended storage, contact factory.
1�10 Actuator Installation
1�10�1 Since there are many valve and actuator combinations, it is not practical to include
detailed instructions for each type. Mountings are designed to be as simple as
possible to keep guess work out of installation.
1�10�2 Actuators are shipped from the factory with the travel stops adjusted to
approximately ninety-degree rotation. Generally it is necessary to make slight
travel stop adjustments once the actuator is installed on the valve. Refer to the
valve manufacturer's recommendations for specic requirements. When the valve
has internal stops, the actuator should be adjusted at the same points.
NOTE:
The actual "stopping" should be done by the actuator. If the valve does not have internal
stops, adjust the actuator to the full open position. Using this as a reference point, rotate
the valve closed and adjust to the valve manufacturer's specications for total rotation.
1�10�3 Good instrument practices are also recommended. Clean/dry regulated hydraulic
pressure is essential for long service life and satisfactory operation. It should be
noted that new pneumatic lines often have scale and other debris in them and
these lines should be purged of all foreign material.
NOTE:
Scale and debris can damage control valves, solenoids, seals, etc.
1�11 Actuator Start-up
1�11�1 Prestart-up checks
1. Unit has been mounted on valve properly.
2. Gear ange mounting bolts, stem key and set screw(s) are installed and secured
3. No tubing damaged or accessories dislodged during shipping or installation
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