Emerson Process Management 1051 - Manual (Page 24)

Instruction Manual
D100320X012
1051 and 1052 H & J Actuators
October 2012
24
3. Loosen the cap screw (key 28) and remove the lever (key 27) from the output shaft (key 87).
4. For an actuator with a J mounting adaptation.
a. Unscrew the cap screws (key 23), and remove the actuator housing (key 20) from the mounting bracket (key 22).
b. Rotate the actuator housing to the new position (1, 2, 3, or 4).
c. Secure the actuator housing to the mounting bracket with the cap screws (key 23). Tighten the cap screws to the
torque value listed in table 11.
5. For an actuator with an H mounting adaptation.
a. Unscrew the cap screws (key 78) and loosen the actuator assembly from its mounting bracket.
b. Rotate the actuator housing to the new position (1, 2, 3, or 4).
c. Secure the actuator housing to the mounting bracket with the cap screws (key 78). Tighten the cap screws to the
torque value listed in table 4.
6. Referring to the alignment marks that were made in step 2, install the lever (Key 27) onto the output shaft (key 87)
as follows:
a. If the new actuator position is 90 degrees clockwise from the previous actuator position, install the lever so that
its orientation mark is located 90 degrees clockwise from the mark on the output shaft.
b. If the new actuator position is 90 degrees or 180 degrees counterclockwise from the previous position, install the
lever so that its orientation mark is located either 90 degrees (for 90 degrees) or 180 degrees (for 180 degrees)
counterclockwise (respectively) from the mark on the output shaft.
c. Slide the lever onto the output shaft with the bolt holes in the lever aligned as closely as possible with the hole in
the rod end bearing (key 17). Then, temporarily rotate the lever and output shaft until the rod end bearing no
longer interferes with further installation of the lever, and slide the lever as far as it can go onto the output shaft.
Clamp the lever to the output shaft with the cap screw (key 28). Tighten the cap screw to the torque value listed
in table 11.
d. Rotate the lever and output shaft back to the original position, and then adjust the rod end bearing so that it can
be attached to the lever.
7. Apply thread-locking adhesive (high strength) (key 77) to the threads of the cap screw (key 18).
8. Connect the lever (key 27) and the rod end bearing (key 17) with the cap screw and hex nut (keys 18 and 19). This
connection can be aided by stroking the actuator from its up travel stop with a regulated air source. Tighten the cap
screw to the torque value listed in table 11.
9. Note the position of the valve body or other operated equipment and direction of rotation. Position the travel
indicator (key 37) accordingly. Replace the cover (key 33), and secure it with the cap screws and washers (keys 34
and 63). If the holes in the cover and housing (key 20) do not align, use a regulated air source to move the actuator
slightly off the up travel stop. If hole alignment cannot be obtained in this manner, temporarily loosen the cap
screws (key 23), and shift the housing slightly. Do not stroke the actuator while the cover is off. Then, tighten both
sets of cap screws to the torque values listed in table 11.
10. Follow the instructions in the Turnbuckle Adjustment section.