Changing Positions - Emerson 1051 Instruction Manual

Instruction Manual
Form 5587
November 2006
3. Loosen the cap screw (key 28).
CAUTION
If necessary, use a wheel puller to
remove the lever (key 27) from the
output shaft (key 87). It is permissible
to tap the wheel puller screw lightly to
loosen the lever, but hitting the screw
with excessive force could damage the
operated equipment.
4. Mark the side of the lever (key 27) that is nearest
to the end of the output shaft (key 87). This marking
is used during reassembly to determine which side
of the lever should be inserted into the actuator
housing first. When the lever is marked, remove the
lever.
5. 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 180 degrees,
maintaining the appropriate position (1, 2, 3,
or 4), and place the actuator onto the mounting
bracket (key 22).
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 10.
6. For an actuator with an H mounting adaptation,
a. Unscrew the cap screws (key 78) and remove
the actuator assembly from its mounting bracket.
b. Unscrew the cap screws (key 23) and remove
the mounting plate (key 22) and output shaft
(key 87) assembly from the actuator housing.
Remount the assembly on the opposite side of
the actuator, and secure it to the housing with the
cap screws (key 23). Tighten the cap screws to
the torque value listed in table 10.
c. Rotate the actuator housing 180 degrees,
maintaining the appropriate position (1, 2, 3, or 4)
and 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 10.
1051 & 1052 H & J
7. Install the lever (key 27) as follows:
a. For push-down-to-open action, rotate the
operated equipment to the fully closed position.
b. For push-down-to-close action, rotate the
operated equipment to the fully open position.
c. With the operated equipment oriented
correctly, slide the lever onto the output shaft
(key 87) with the end marked in step 4 inserted
first. When installing the lever, align the bolt holes
in the lever as close as possible with the hole in
the rod end bearing (key 17).
d. Temporarily rotate the lever and output shaft
until the rod end bearing no longer interferes with
further installation of the lever. Then, 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 10.
e. Rotate the lever and output shaft back to the
original position (i.e., operated equipment fully
closed for push-down-to-open action or operated
equipment fully open for push-down-to-close
action). Then, adjust the rod end bearing so that
it can be attached to the lever.
8. Apply thread-locking adhesive (high strength)
(key 77) to the threads of the cap screw (key 18).
9. 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 10.
10. 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. Tighten both sets of cap screws to the
torque values listed in table 10.
11. Follow the instructions in the Turnbuckle
Adjustment section.

Changing Positions

1. Unscrew the cap screws and washers (keys 34
and 63), and remove the cover (key 33).
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