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Instruction Manual
Form 5300
July 2005
When removing the actuator cover
plate, take care not to change the
position of the rod end bearing on the
end of the turnbuckle inside the
actuator housing.
2. If necessary, install a new cover plate.
a. Remove the existing cap screws and actuator
cover plate from the actuator housing.
b. Remove the retaining ring (e-clip) and hub
from the cover plate.
c. Install the hub and retaining ring into the new
actuator/positioner cover plate.
Position the actuator cover plate so
the positioner mounting holes on the
new cover plate allow placement of the
positioner in the desired orientation.
W5916/IL
Figure 6. Loosening the Cam Locknut
Note
Note
3710 and 3720 Positioners
Actuator cover alignment on the Type
1052 actuator can be aided by moving
the actuator slightly away from its
"up" travel stop using a regulated air
source. If the hole alignment cannot be
obtained in this manner, temporarily
loosen the cap screws that secure the
housing to the mounting yoke and
shift the housing slightly. Do not
completely travel the actuator while
the cover is removed.
Tighten the actuator cap screws before
continuing.
3. Position the new actuator/positioner cover plate
so the positioner mounting holes on the new cover
plate allow placement of the new positioner in the
desired orientation. Secure the new cover plate to
the actuator.
4. Install the positioner tie bar (key 42) in place of
the travel indicator on the actuator hub.
Before installation of the positioner
mounting plate (key 43), review the
Note
11
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