Emerson Fisher 1066 User manual

www.Fisher.com
Fisherr1066 and 1066SR Piston Rotary
Actuators with Style F and G Mounting
Adaptations
Contents
Introduction 1...................................
Scope of Manual 1.............................
Description 3.................................
Specifications 2...............................
Educational Services 3.........................
Installation 4
....................................
Actuator Mounting 4..........................
Loading Pressure Connection 7..................
Adjustment 7.................................
Principle of Operation 8.........................
Maintenance 8
..................................
Disassembly 9................................
Assembly 10..................................
Parts Ordering 13...............................
Parts Kits 13
.....................................
Parts List 14.....................................
Figure 1. Typical Actuator Assemblies
1066 ACTUATOR WITH FISHER 3710 POSITIONER
W6058-1
W6264-1
1066SR ACTUATOR WITH FISHER 8560 VALVE
Introduction
Scope of Manual
This instruction manual provides installation, operation, maintenance, and parts ordering information for Fisher 1066
and 1066SR piston rotary actuators (see figure 1). Instructions for the control valve and accessories are covered in
separate manuals.
Do not install, operate, or maintain 1066 and 1066SR actuators without being fully trained and qualified in valve,
actuator, and accessory installation, operation, and maintenance. To avoid personal injury or property damage, it is
important to carefully read, understand, and follow all the contents of this manual, including all safety cautions and
warnings. If you have any questions about these instructions, contact your Emerson Process Management sales office
before proceeding.
Instruction Manual
D100331X012
1066 and 1066SR F & G Actuators
October 2012

Instruction Manual
D100331X012
1066 and 1066SR F & G Actuators
October 2012
2
Table 1. Specifications
Actuator Size
20, 27, and 75
Cylinder Pressure(1)
Maximum Allowable
1066
Size 20 and 75: 8.3 bar (120 psig)
Size 27: 4.1 bar (60 psig)
1066SR
Size 20 and 75: 8.3 bar (120 psig)
Size 27: Up to 8.3 bar (120 psig) depending on spring
Minimum Recommended
1066: 2.8 bar (40 psig)
1066SR: 3.4 bar (50 psig)
Maximum Rotation
Travel stops are adjustable from 90 to 60 degrees
(90 degrees is standard)
Connections for Valve Shaft Diameter, mm (Inch)
Size 20 and 27: 12.7 (1/2), 15.9 (5/8),
19.1 (3/4), 22.2 (7/8), and 25.4 (1)
Size 75: 19.1 (3/4), 22.2 (7/8), 25.4 (1),
31.8 (1-1/4), and 38.1 (1-1/2)
Maximum Breakout Torque(2)
1066
Size 20 & 27: Up to 225 NSm (2000 lbfSin)
Size 75: Up to 850 NSm (7500 lbfSin)
1066SR
Size 20: Up to 111 NSm (980 lbfSin)
Size 27: Up to 225 NSm (2000 lbfSin)
Size 75: Up to 478 NSm (4230 lbfSin)
Stroking Time
Dependent on actuator size, rotation, and supply
pressure. If stroking time is critical, consult your
Emerson Process Management sales office
Temperature Capabilities
Nitrile O-Rings: −40 to 82C(−40 to 180F)
Fluorocarbon O-Rings: −18 to 149C
(0 to 300F)
Cylinder Volumetric Displacement
See table 2
Mounting Positions
Seefigure2
Valve Position Indication
Graduated scale and pointer combination. See figures
5and6
Pressure Connections
1/4 NPT internal connections
Approximate Weights, kg (lbs)
1066 1066SR
Size 20: 15 (32) Size 20: 15 (32)
Size 27: 28 (62) Size 27: 34 (74)
Size 75: 38 (84) Size 75: 49 (108)
Options
J4200 Series electronic position transmitter,
J3710 pneumatic or 3720 electro-pneumatic
positioner, JFIELDVUE™ DVC6200 digital valve
controller, JTopWorx™ DXP M21GNEB limit switch,
Jsolenoid valve, Jactuator bypass valve, Jtrip
valves, and Jwrench override for manual operation
1. Pressure/temperature limits in this manual and any applicable code or standard must not be exceeded.
2. Actuator torque available depends on specific construction and cylinder pressure. For information on torque requirements of the valve being considered, contact your Emerson Process
Management sales office.

Instruction Manual
D100331X012
1066 and 1066SR F & G Actuators
October 2012
3
Table 2. Volumetric Displacement
ACTUATOR
SIZE
DISPLACEMENT VOLUME(1) CLEARANCE VOLUME ABOVE PISTON(1) CLEARANCE VOLUME BELOW PISTON(1)
cm3Inch3cm3Inch3cm3Inch3
1066
20 688 42 410 25 1804 110
27 1312 80 410 25 4014 245
75 2622 160 1180 72 1442 88
1066SR
20 688 42 410 25 --- ---
27 1311 80 410 25 --- ---
75 2622 160 410 25 --- ---
1. Total volume to stroke piston down is equal to displacement volume plus clearance volume above piston.
Description
The 1066 is a direct-acting pneumatically operated actuator. The 1066SR is a spring-return pneumatically operated
actuator with a positioner (see figure 1). Both actuators are used for throttling or on-off applications with splined shaft
valves. These actuators can be used on eccentric disc 8532 and 8560 valves; CV500 and V500 valves; Vee-Ball™ V150,
V200, and V300 valves; and 9500 valves. The 1066SR fully retracts the piston rod towards the top of the cylinder upon
loss of loading pressure.
The actuator is field-reversible between PDTC (push-down-to-close) and PDTO (push-down-to- open) action
depending on mounting position (see figure 2). Refer to the Actuator Mounting section to change valve/actuator
action or its position. The G mounting adaptation is for 9500 rotary butterfly valves, and the F mounting adaptation is
for most other rotary high performance valves.
Specifications
Specifications for the 1066 or 1066SR rotary actuator areshownintable1.Specificationsfortheactuatorasit
originally came from the factory are stamped on a nameplate attached to the actuator.
Educational Services
For information on available courses for 1066 and 1066SR Style F and G actuators, as well as a variety of other
products, contact:
Emerson Process Management
Educational Services, Registration
P.O. Box 190; 301 S. 1st Ave.
Marshalltown, IA 50158-2823
Phone: [phone] or
Phone: [phone]
FAX: [phone]
e-mail: [e-mail]

Instruction Manual
D100331X012
1066 and 1066SR F & G Actuators
October 2012
4
Installation
When an actuator and valve are shipped together, the actuator is normally mounted on the valve. Follow the valve
instruction manual when installing the control valve in the pipeline. If it is necessary to mount the actuator on the
valve, or if it is necessary to change actuator mounting positions, perform the Actuator Mounting procedure. Because
of the valve travel adjustments required, it is recommended that the valve be removed from the pipeline.
WARNING
To avoid personal injury or property damage caused by bursting of pressure retaining parts, be certain the service
conditions do not exceed the limits given in table 1 or on the nameplate. Use pressure limiting or pressure relieving devices
to prevent the cylinder pressure from exceeding the maximum allowable cylinder operating pressure.
Always wear protective gloves, clothing, and eyewear when performing any installation operations to avoid personal
injury.
Check with your process or safety engineer for any additional measures that must be taken to protect against process
media.
If installing into an existing application, also refer to the WARNING at the beginning of the Maintenance section in this
instruction manual.
Actuator Mounting
Use the following steps to connect a valve and actuator that have been ordered separately, or separated for
maintenance. This procedure can also be performed to change actuator mounting positions. Key numbers are shown
in figure 6 or 7 unless otherwise noted.
WARNING
This WARNING applies specifically to 1066 actuators, and to specially modified 1066SR actuators that apply pressure to the
bottom of the piston (key 3, figures 4 and 5).
To avoid personal injury from the bearing (key 4, figure 3) being forced out of the actuator with sufficient energy to cause
personal injury or property damage, carefully follow the instructions given below.
Do not apply loading pressure to a partially assembled actuator. Do not remove the mounting yoke (key 25, figure 3)
or the travel indicator scale (key 21, figure 3) from the actuator assembly when loading pressure is applied to the
bottom of the piston. The bearing (key 4) could be forced out of the actuator assembly. Depending on the mounting
position, either the mounting yoke ( key 25) or the travel indicator scale (key 21) retains the bearing (key 4) when
cylinder pressure is applied below the piston.
For mounting positions A and D, the mounting yoke (key 25) holds the bearing in place when pressure is applied below
the piston. In the case of mounting positions B and C, the indicator scale (key 21) holds the bearing in place when
pressure is applied below the piston.
Refer to figure 2 for available mounting positions. When mounting on a Vee-Ball V150, V200 or V300 valve, check the
valve manual to determine if it is Series B. Make sure the mounting bracket is located on the correct side of the
actuator to match your application.

Instruction Manual
D100331X012
1066 and 1066SR F & G Actuators
October 2012
5
Figure 2. Mounting Positions
ACTUATOR
MOUNTING ACTION(1)
VALVE SERIES OR DESIGN VALVE SERIES OR DESIGN
BALL/PLUG
ROTATION TO
CLOSE
V250 V150, V200 &
V300
CV500,
V500
DISC/BALL
ROTATION TO
CLOSE
V250 8532, 8560
& 9500
Right-hand PDTC
PDTO
CCW(3)
CCW
A
B
A
B
A
B
CW
CW
NA
NA
B
A
Left-hand PDTC
PDTO
CCW
CCW
NA
NA
D
C
D
C
CW
CW
C
D
C
D
Left-hand
(optional)(2)
PDTC
PDTO
CW(4)
CW
NA
NA
C
D
NA
NA
NA
NA
NA
NA
NA
NA
1. PDTC–Push-down-to-close; PDTO–Push-down-to-open.
2. A left-hand ball will be required for the NPS 3 through 12 V150, V200 or V300 Series B and the NPS 14 to 20, with or without an attenuator.
3. CCW= counterclockwise
4. CW = clockwise
LEFT-HAND
MOUNTING
RIGHT-HAND
MOUNTING
STYLE A
STYLE C
STYLE D
STYLE B
28A4478-A
A3218-2
Disassembly
WARNING
Avoid personal injury from sudden release of process pressure or uncontrolled movements of parts. Before performing any
maintenance operations:
DDo not remove the actuator from the valve while the valve is still pressurized.
DAlways wear protective gloves, clothing, and eyewear when performing any maintenance operations to avoid personal
injury.
DDisconnect any actuator operating lines providing air pressure, electric power, or a control signal to the actuator. Be
sure the actuator spring compression cannot suddenly open or close the valve. Vent actuator loading pressure.
DUse process bypass valves or completely shut off the process to isolate the valve from process pressure. Relieve process
pressure on both sides of the valve. Drain the process media from both sides of the valve. Use caution when handling
hazardous process media.
DUse lockout procedures to ensure that the above measures stay in effect while you are working on the equipment.
DThe valve packing box may contain process fluids that are pressurized, even when the valve has been removed from the
pipeline. Process fluids may spray out under pressure when removing the packing hardware or packing rings, or when
loosening the packing box pipe plug.
DCheck with your process or safety engineer for any additional measures that must be taken to protect against process
media.

Instruction Manual
D100331X012
1066 and 1066SR F & G Actuators
October 2012
6
1. Isolatethecontrolvalvefromthelinepressure,releasepressure from both sides of the valve body, and drain the
process media from both sides of the valve. Also, shut off all pressure lines, and release all pressure to the actuator.
Uselock-outprocedurestobesurethattheabovemeasuresstayineffectwhileyouworkontheequipment.
2. Refer to figure 2 for available mounting positions. The actuator is normally positioned vertically on a valve that is
installed with the shaft horizontal in the pipeline as shown in figure 2.
3. Remove the machine screws (key 24), the travel indicator (key 22), and the spacer (key 26) from the actuator.
CAUTION
When removing the actuator from the valve, do not use a hammer or similar tool to drive the hub and bearing assembly off
the valve shaft. This could damage the valve internal parts.
If necessary, use a wheel puller to remove the hub and bearing assembly or actuator from the valve shaft. It is acceptable to
tap the wheel puller screw lightly to loosen the actuator, but hitting the screw with excessive force could damage internal
valve parts.
4. Remove the actuator assembly from the valve shaft.
Assembly
1. Position the actuator according to the appropriate mounting position you have selected.
2. If the mounting position and style desired requires moving the mounting yoke (key 25) and travel indicator scale
(key 21) to opposite sides of the actuator, remove the cap screws (key 20) from both sides of the actuator. Then,
removethemountingyokeandtravelindicatorscaleandpositionthemontheappropriatesidesoftheactuator.
3. Secure the mounting yoke and travel indicator scale to the actuator with the cap screws (key 20). Tighten the cap
screws to 25 NSm(18lbfSft) for size 20 and 27 actuators and to 102 NSm(75lbfSft) for size 75 actuators.
4. Theindexmarkonthevalveshaftmustbealignedwithoneofthefourindexholesontheendoftheactuatorhub
(key 6).
CAUTION
As discussed in the following paragraph, mount the actuator on the valve so that the hub slides onto the shaft without
damaging the hub.
Consult the appropriate valve instruction manual for lever/shaft index mark or hole to position the shaft correctly. Be
sure valve/actuator action is matched. Some valve applications require PDTO (push-down-to-open) fail action, while
others require PDTC (push-down-to-close) fail action. Most valves or other applications require the actuator to limit
travel to prevent damage. Mount the actuator on the valve so that the hub slides onto the shaft without damaging the
hub.
5. Securethemountingyoke(key25)tothevalvebodyasfollows:
DIf using the F Mounting Style, secure the mounting yoke to the valve body with the valve body cap screws. Tighten
thecapscrewstothetorquegiveninthevalveinstructionmanual.
DIf using the G Mounting Style, secure the mounting yoke to the valve body with the cap screws and washers (keys 36
and 38, not shown). Tighten the cap screws.
6. Install the spacer (key 26).
7. Note the actuator position, the valve disc or ball position, and the direction of rotation. Position the travel indicator
(key 22) accordingly and fasten it with the machine screws (key 24).

Instruction Manual
D100331X012
1066 and 1066SR F & G Actuators
October 2012
7
8. Perform the Adjustment procedures before applying actuator loading pressure.
Loading Pressure Connection
The actuator should have either a loading solenoid, a switching valve, or a positioner connected to the 1/4 NPT
pressure connections located at the top of the actuator cylinder. Refer to figures 5 and 6.
1. Connect either 6.4 mm (1/4-inch) or 9.5 mm (3/8-inch) tubing between the actuator pressure connection and a
controlling instrument. Keep the length of tubing as short as possible to avoid transmission lag in the control signal.
For further information if using a positioner, please refer to the appropriate manual.
For 1066 actuators with a handwheel or wrench override, provide an actuator bypass valve and tubing between the
two loading pressure connections (not shown). Pressure trapped in the cylinder can make it difficult to change the
piston position if pressure connections are blocked because of an external device.
CAUTION
The actuator travel stop must be adjusted so the valve does not absorb the output of the actuator. Failure to limit the
actuator travel as described in this manual or in the valve manual can result in damage to the valve, shaft(s), or other valve
components.
2. Check the control valve assembly for correct action after it is completely installed and connected. For successful
operation, the piston rod (key 5) and valve shaft should move freely in response to loading pressure changes on the
piston (key 3).
Adjustment
Theactuatorisfactorysetforafull90degreesofvalveshaftrotationunlessotherwisespecifiedbythecustomer.
Control actuator/valve assemblies are factory set as specified by customer order. If the actuator is removed from the
valve or if valve travel appears to be incorrect, re-adjust as necessary.
CAUTION
Refer to the CAUTION provided in the Loading Pressure Connection section above. Over-travel of the valve can cause
damage to the valve components.
1. Isolatethecontrolvalvefromthelinepressure,releasepressure from both sides of the valve, and drain the process
media from both sides of the valve. Shut off all pressure lines to the actuator, and release the pressure. Use lock-out
procedures to be sure that the above measures stay in effect while you work on the equipment.
WARNING
Refer to the WARNING at the beginning of the Disassembly steps for more information.
2. Adjust the actuator stops to match the valve rotation. Adjustments must be made after installing the actuator on
the valve.
3. Loosen the hex nuts (key 37 or 13, 1066 or 1066SR) and turn the set screws (key 12). Top and bottom piston
position limits are set with the upper and lower set screws respectively.

Instruction Manual
D100331X012
1066 and 1066SR F & G Actuators
October 2012
8
If rotation of either set screw seems difficult, apply lithium grease lubricant (key 35) to the threads of each set screw as
shown in figures 5 and 6.
Figure 3. Mounting Yoke Detail
TRAVEL
INDICATOR
SCALE (KEY 21)
48A4468-C
TRAVEL
INDICATOR
SCALE (KEY 21)
MOUNTING
YOKE (KEY 25)
BEARING
(KEY 4)
BEARING (KEY 4)
STYLES A AND D
(STANDARD CONSTRUCTION)
STYLES B AND C
(REVERSE CONSTRUCTION)
Principle of Operation
1066 Actuators: Piston movement is accomplished by loading air pressure on one side of the piston (key 3, figure 4),
while unloading air pressure from the other side. The piston moves a lever (key 10) to open or close the valve. Use
either a positioner, a loading solenoid, a four-way switching valve, or two three-way valves to operate the actuator.
Actuators equipped with either the wrench override option or with a 1078 handwheel can manually position a control
valve without using supply or instrument air pressure. Be sure to open the cylinder bypass valve to equalize pressure
before manually operating the valve/actuator assembly.
1066SR Actuators: Piston movement is accomplished by loading air pressure on top of the piston (key 3, figure 5) to
move the piston down. This action compresses the spring. If loading pressure is decreased or removed, spring
compression moves the piston to the top of the cylinder. The piston moves a lever (key 10) to open or close the valve.
Use either a positioner, a loading solenoid, or a switching valve to operate the actuator.
Maintenance
Instructions are given in this section for replacing the cylinder O-ring, the cylinder gasket, the lever/bearing assembly,
and other parts. Key numbers are shown in figures 6 and 7 unless otherwise noted.
WARNING
Avoid personal injury from sudden release of process pressure or uncontrolled movements of parts. Before performing any
maintenance operations:
DDo not remove the actuator from the valve while the valve is still pressurized.

Instruction Manual
D100331X012
1066 and 1066SR F & G Actuators
October 2012
9
DAlways wear protective gloves, clothing, and eyewear when performing any maintenance operations to avoid personal
injury.
DDisconnect any actuator operating lines providing air pressure, electric power, or a control signal to the actuator. Be
sure the actuator spring compression cannot suddenly open or close the valve. Vent actuator loading pressure.
DUse process bypass valves or completely shut off the process to isolate the valve from process pressure. Relieve process
pressure on both sides of the valve. Drain the process media from both sides of the valve. Use caution when handling
hazardous process media.
DUse lockout procedures to ensure that the above measures stay in effect while you are working on the equipment.
DThe valve packing may contain process fluids that are pressurized, even when the valve has been removed from the
pipeline. Process fluids may spray out under pressure when removing the packing hardware or packing rings.
DCheck with your process or safety engineer for any additional measures that must be taken to protect against process
media.
WARNING
This WARNING applies specifically to 1066 actuators, and to specially modified 1066SR actuators that apply pressure to the
bottom of the piston (key 3, figures 5 and 6).
To avoid personal injury from the bearing (key 4, figure 3) being forced out of the actuator with sufficient energy to cause
personal injury or property damage, carefully follow the instructions given below.
Do not apply loading pressure to a partially assembled actuator. Do not remove the mounting yoke (key 25, figure 3)
or the travel indicator scale (key 21, figure 3) from the actuator assembly when loading pressure is applied to the
bottom of the piston. The bearing (key 4) could be forced out of the actuator assembly.
Depending on the mounting position, either the mounting yoke ( key 25) or the travel indicator scale (key 21) retains
the bearing (key 4) when cylinder pressure is applied below the piston. For mounting positions A and D, the mounting
yoke (key 25) retains the bearing in place when pressure is applied below the piston. In the case of mounting positions
B and C, the indicator scale (key 21) retains the bearing in place when pressure is applied below the piston.
Disassembly
1. Isolatethecontrolvalvefromthelinepressure,releasepressure from both sides of the valve, and drain the process
media from both sides of the valve. Shut off all pressure lines to the actuator, and release the pressure. Use lockout
procedures to be sure that the above measures stay in effect while you work on the equipment.
WARNING
When removing the hex nuts (key 31), besurespringpre-compressionisnot acting on the cylinder cover (key 2). The
spring compression could result in personal injury by causing the cylinder cover to suddenly release from the actuator as
thenutsareremoved.
2. Remove the hex nuts (key 31), the flat washer (key 15), the cylinder cover (key 2), and the cylinder (key 8).
3. Inspect the O-ring (key 17) and the gasket (key 33) for nicks or flat spots that might cause leakage. Obtain all
replacement parts necessary for reassembly.
4. If replacing the O-ring (key 17) and/or gasket (key 33) is the only maintenance necessary, skip the remaining steps
in this Disassembly procedure and go to the following Assembly procedure.

Instruction Manual
D100331X012
1066 and 1066SR F & G Actuators
October 2012
10
WARNING
For 1066SR Only: Avoid personal injury from the sudden release of spring pre-compression by carefully following step 5
below.
5. 1066SR Only: Loosen the cap screw (key 19) a few turns, but do not fully disengage the cap screw threads from the
piston rod at this time. Be sure the piston (key 3) disengages from the end of the piston rod (key 5) as the cap screw
is being unscrewed. If the cap screw is completely removed without removing spring pre-compression, the piston
can be suddenly forced off the piston rod possibly causing personal injury or damage.
If you are unsure of the amount of the spring pre-compression resting on the cap screw, provide an alternate method
of containing spring compression before completely removing the cap screw (key 19, figure 7).
6. Remove the cap screw (key 19). Remove the sealing washer (key 11), piston (key 3), and spring (key 7, for 1066SR).
For size 20 actuators, a flat washer (key 23) will also be removed with these parts.
7. Remove the machine screws (key 24), the travel indicator (key 22), and the spacer (key 26).
CAUTION
When removing the actuator from the valve, do not use a hammer or similar tool to drive the actuator lever off the valve
shaft. This could damage the valve internal parts.
If necessary, use a wheel puller to remove the actuator bearing (key 4) from the valve shaft. It is acceptable to tap the wheel
puller screw lightly to loosen the actuator bearing.
8. Remove the actuator from the valve by removing the actuator mounting screws (see figures 5 and 6).
9. Remove the cap screws (key 20), and remove the mounting yoke (key 25) from the actuator.
10. Remove the bearing (key 4) and washer (key 43), and then remove the hub (key 6) from the housing (key 1).
11. Lift the piston rod (key 5) with attached lever and bearing assembly (key 10) out of the actuator housing.
12. Remove one of the two E-rings (key 14) and then remove the pin (key 9). Separate the lever and bearing assembly
from the piston rod.
13. Clean and inspect all parts, and if necessary obtain replacement parts needed for reassembly. Carefully inspect the
hub (key 6), lever, and bearing assembly for excessive wear. If necessary, replace the parts.
Assembly
Refer to figures 4 and 5 when assembling the actuator, and mounting it on the valve. Make sure the yoke (key 25) is
located on the correct side of the actuator to match your application. During reassembly do not apply loading pressure
to the actuator before it is fully assembled. Refer to figure 3.
WARNING
Refer to the two WARNINGS at the beginning of the Maintenance section.
Key number locations are shown in figures 6 and 7, unless otherwise noted.
1. Reconnect the lever and bearing assembly to the piston rod with the pin. Secure the pin with an E-ring on each end.

Instruction Manual
D100331X012
1066 and 1066SR F & G Actuators
October 2012
11
Figure 4. Fisher 1066 Assembly Detail
LEVER &
BEARING
ASSEMBLY
HUB &
BEARING
ASSEMBLY
MOUNTING
YOKE (KEY 25)
BEARING
(KEY 4)
O-RING
(KEY 18)
HOUSING
(KEY 1)
CYLINDER
COVER
(KEY 2)
W4100-1
ACTUATOR
MOUNTING SCREWS
PISTON
(KEY 3)
PISTON
ROD
(KEY 5)
O-RING
(KEY 17)
CYLINDER
(KEY 8)
W4101-1
TOP LOADING
PRESSURE CONNECTION
BOTTOM LOADING
PRESSURE
CONNECTION
SEE SPECIAL
WARNING
LOCKNUT
(KEY 37)
ACTUATOR
TRAVEL
STOPS
2. Lower the piston rod with attached lever and bearing assembly into the actuator housing.
3. Apply lithium grease lubricant (key 35) to the outer surface of the hub (key 6). Orient the hub (key 6) so that one of
the index holes on the end of the hub is in line with the lever pin (key 9). Then, slide the hub into the housing and
through the lever and bearing assembly.
4. Apply lithium grease lubricant (key 35) to the outer surface of the bearing (key 4). Then, install the bearing and
washer (keys 4 and 43) into the housing as shown in figure 6 or 7.
5. Securethemountingyoketotheactuatorwiththecapscrews(key20).Tightenthecapscrewsto25NSm(18
lbfSft) for size 20 and 27 actuators and to 102 NSm(75lbfSft) for size 75 actuators.
6. Theindexmarkonthevalveshaftmustbealignedwithoneofthefourindexholesontheendoftheactuatorhub
(key 6). Consult the appropriate valve instruction manual for lever/shaft index mark (hole) orientations for various
positions. Then, slide the actuator onto the valve shaft.
7. Bolt the mounting yoke to the valve with the mounting bolts provided with the control valve. For 9500 valves, bolt
themountingyoketothevalvewiththecapscrewsandflatwashers(key36and38,notshown)suppliedwiththe
actuator.
8. Apply lithium grease lubricant (key 35) to the wall of the cylinder (key 8), to the cap screw (key 19), and to the
O-ring (key 17) as shown in figure 6 or 7.
9. Install the spring (key 7). Then, attach the piston (key 3) to the piston rod (key 5) with the cap screw (key 19) and
sealing washer (key 11). For size 20 actuators, install a flat washer (key 23) with these parts. Tighten the cap screw
to 81 NSm(60lbfSft) for size 20 actuators, 136 NSm(100lbfSft) for size 27, and 176 NSm(130lbfSft) for size 75
actuators.

Instruction Manual
D100331X012
1066 and 1066SR F & G Actuators
October 2012
12
Figure 5. Fisher 1066SR Assembly Detail
PISTON
(KEY 3)
PISTON
ROD
(KEY 5)
O-RING
(KEY 17)
CYLINDER
(KEY 8)
W4099-1
LOADING PRESSURE
CONNECTION
SEE SPECIAL
WARNING
LOCK NUT
(KEY 13)
SET SCREW
(KEY 12)
ACTUATOR
TRAVEL
STOPS
LEVER &
BEARING
ASSEMBLY
HUB&
BEARING
ASSEMBLY O-RING
(KEY 18)
BEARING
(KEY 4)
HOUSING
(KEY 1)
SPRING
(KEY 7)
CYLINDER
COVER
(KEY 2)
W4102-1 MOUNTING YOKE (KEY 25)
ACTUATOR
MOUNTING
SCREWS
Note
Before installing the cylinder cover (key 2) on 1066SR size 27 and 75 actuators, adjust the travel stop set screws (key 12) for
60-degree rotation using the procedure in the Adjustment section. This adjustment will allow easier installation of the cylinder
cover.
10. Install the cylinder (key 8) and the cylinder cover (key 2), for:
D1066 Size 75, secure them to the actuator housing with cap screws (key 16) as shown in figure 4.
D1066SR, secure them to the actuator with the flat washers and hex nuts (key 30 and 31) as shown in figure 5.
11. Tighten the cap screws or hex nuts to 41 NSm(30lbfSft) for size 20 actuators and 102 NSm(75lbfSft) for size 27
and 75 actuators.
12. If the travel indicator scale (key 21) is removed, replace it along with the cap screws (key 20). Tighten the cap
screws to 25 NSm(18lbfSft) for size 20 and 27 actuators and to 102 NSm(75lbfSft) for size 75 actuators.
13. Install the spacer (key 26). Note the valve disc or ball position and direction of rotation. Position the travel
indicator (key 22) accordingly and fasten it with the machine screws (key 24).
14. Perform the Adjustment procedure before placing the actuator into operation.

Instruction Manual
D100331X012
1066 and 1066SR F & G Actuators
October 2012
13
Parts Ordering
When corresponding with your Emerson Process Management sales office about this equipment, refer to the serial
number found on the actuator nameplate (key 27, figures 6 and 7). Also, specify the complete 11-character part
number from the following parts list when ordering replacement parts.
WARNING
Use only genuine Fisher replacement parts. Components that are not supplied by Emerson Process Management should
not, under any circumstances, be used in any Fisher valve, because they may void your warranty, might adversely affect the
performance of the valve, and could cause personal injury and property damage.
Parts Kits
Repair Kits for Fisher 1066 and 1066SR Actuators
ACTUATOR SIZE KIT NUMBERS
1066 1066SR
20 R1066X00202 R1066SRX202
27 R1066X00272 R1066SRX752
75 R1066X00752 R1066SRX752
Parts Included in Kit
Key and Description Quantity per Kit
11 Seal ring 1 1
17 O-ring 1 1
18 O-ring 1---
33 Gasket 2 1
34 O-ring 2---
37 Self-sealing nut 2---

Instruction Manual
D100331X012
1066 and 1066SR F & G Actuators
October 2012
14
Parts List
Note
Part numbers and descriptions apply to both 1066 and 1066SR unless
otherwise noted.
Part numbers are shown for recommended spares only. For part
numbers not shown, contact your Emerson Process Management sales
office.
Key Description Part Number
1Housing,castiron
2CylinderCover
3 Piston, aluminum
4 Bearing, steel (ENC coated)
5 Piston Rod, steel
6 Hub & Bearing Assembly, steel/carbon filled-PTFE
7 Spring, 1066SR only
8 Cylinder, Chrome-plated
9 Pin, S17400 (17-4PH SST, heat-treated)
10 Lever & Bearing Assembly, steel/PTFE
11* Sealing Washer, pl carbon steel & rubber
Size 20 1H720799012
Sizes 27 & 75 1J764199012
12 Set Screw, steel (2 req'd)
13 Hex Nut, pl steel (2 req'd) 1066SR only
14 E-ring, pl carbon steel (2 req'd)
15 Flat Washer, steel (4 req'd)
16 Cap screw, pl steel (4 req'd) 1066 only
For 1066SR see keys 30 and 31
17* O-ring
Nitrile
Sizes 20 1D2672X0032
Sizes 27 & 75 1D4446X0052
Fluorocarbon
Size 20 1D2672X0012
Sizes 27 & 75 1D4446X0012
Key Description Part Number
18* O-ring, 1066 only
Nitrile
Size 20 and 27 15A8508X012
Size 75 1J1079X0052
Fluorocarbon
Size 20 and 27 15A8508X022
Size 75 1J1079X0022
19 Cap Screw, pl steel
20 Cap Screw, pl steel (a maximum of 8 req'd for any construction)
21 Travel Indicator Scale, SST
22 Travel Indicator, SST
23 Flat Washer, pl carbon steel
24 Machine Screw, pl steel (2 req'd)
25 Mounting Yoke
26 Spacer, SST W/o wrench override and w/o 1078 handwheel, 1066
27 Nameplate, SST
29 Drive Screw, SST (2 req'd)
30 Stud, pl steel (4 req'd),
31 Hex Nut, pl steel (4 req'd)
32 Vent Screen, (not shown) SST
33* Gasket, composition (2 req'd)
Size 20 18A4432X012
Sizes 27 & 75 18A4443X012
34* O-ring (2 req'd), 1066
Nitrile
Size 20 and 27 1V115706992
Size 75 1K1365X0042
Fluorocarbon
Size 20 1V1157X0012
Size 27 and 75 1K1365X0052
35 Lithium grease lubricant, 14 oz (0.369 kg) can
(not furnished with actuator)
36 Cap Screw, pl steel (not shown)
40 Retaining Ring, SST (not shown), Use w/wrench override only
43 Thrust Washer, SST
62 Sealing Nut, brass
63 Adjustment Screw
Cylinder Bypass Parts for 1066
64 Pipe Nipple, brass (not shown) (3 req'd)
65 Pipe Plug, (2 req'd)
66 Pipe Cross, (2 req'd)
67 Needle Valve
71 Elbow
*Recommended spare parts

Instruction Manual
D100331X012
1066 and 1066SR F & G Actuators
October 2012
15
Figure 6. Typical Fisher 1066 Actuator Assembly
jAPPLY LUB
NOTE:
KEY 23 IS REQUIRED FOR SIZE 20 ACTUATORS ONLY
48A4468-C

Instruction Manual
D100331X012
1066 and 1066SR F & G Actuators
October 2012
16
Figure 7. Typical Fisher 1066SR Actuator Assembly
48A4468-C
jAPPLY LUB
NOTE:
PARTS NOT SHOWN: 32, 36, 38
KEY 23 IS REQUIRED FOR SIZE 20 ACTUATORS ONLY
Emerson Process Management
Marshalltown, Iowa 50158 USA
Sorocaba, 18087 Brazil
Chatham, Kent ME4 4QZ UK
Dubai, United Arab Emirates
Singapore 128461 Singapore
www.Fisher.com
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to be construed as warranties or guarantees, express or implied, regarding the products or services described herein or their use or applicability. All sales are
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