Emerson Fisher 657 And 667 Installation Instructions

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Fisherr657 Diaphragm Actuator

Sizes 30-70 and 87

Contents

Introduction 1.................................

Scope of Manual 1.............................

Description 2.................................

Specifications 2...............................

Educational Services 3.........................

Installation 3..................................

Mounting the Actuator on the Valve 4............

Discussion of Bench Set 5.......................

Spring Verification 6...........................

Installing the Stem Connector Assembly 7.........

Friction Discussion 8...........................

Deadband Measurement 9......................

Loading Connection 10.........................

Maintenance 11................................

Actuator Maintenance 11.......................

Top-Mounted Handwheel Assembly 13...........

Side-Mounted Handwheel for Sizes 34

through 60 Actuators 15.....................

Side-Mounted Handwheel for Sizes 70

and 87 Actuators 16.........................

Casing-Mounted Adjustable Travel Stops 18.......

Parts Ordering 20...............................

Parts Kits 20...................................

Kits for Side-Mounted Handwheels 20............

Kits for Top-Mounted Handwheels 20.............

Parts List 21...................................

Actuator Assembly (figures 6, 7, or 8) 21..........

Figure 1. Fisher 657 or 657-4 Actuator Mounted

on an easy-e™ Valve

W2174-2

Top-Mounted Handwheel (figures 9 or 10) 21......

Side-Mounted Handwheel (figure 11 or 13) 24.....

Casing-Mounted Adjustable Up Travel Stops

(figures 14 or 15) 29.........................

Casing-Mounted Adjustable Down Travel Stops

(figure 16) 30..............................

Introduction

Scope of Manual

This instruction manual provides information on installation, adjustment, maintenance, and parts ordering for the

Fisher657actuatorinsizes30through70andsize87.The657-4 actuator in sizes 70 and 87 is also covered. Refer to

separate instruction manuals for information about the valve positioner and other accessories used with these

actuators.

Do not install, operate, or maintain a 657 actuator 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

D100306X012

657 Actuator (30-70 and 87)

November 2013

Instruction Manual

D100306X012

657 Actuator (30-70 and 87)

November 2013

2

Table 1. Specifications

SPECIFICATION(1) ACTUATOR SIZE

30 34 40 45 46 50 60 70(1) 87(1)

Nominal Effective Area cm2297 445 445 677 1006 677 1006 1419 1419

Inch246 69 69 105 156 105 156 220 220

Yoke Boss Diameters mm 54 54 71 71 71 90 90 90 127

Inches 2-1/8 2-1/8 2-13/16 2-13/16 2-13/16 3-9/16 3-9/16 3-9/16 5

Acceptable Valve

Stem Diameters

mm 9.5 9.5 12.7 12.7 12.7 19.1 19.1 19.1 25.4

Inches 3/8 3/8 1/2 1/2 1/2 3/4 3/4 3/4 1

Maximum Allowable

Output Thrust(4)

N10230 10230 12010 25131 33582 25131 30246 39142 39142

Lb 2300 2300 2700 5650 7550 5650 6800 8800 8800

Maximum Travel(2) mm 19 29 38 51 51 51 51 76(3) 76(3)

Inches 0.75 1.125 1.5 2 2 2 2 3(3) 3(3)

Maximum Casing

Pressure for

Actuator Sizing(4)

Bar 8.6 4.5 4.5 3.4 2.8 3.4 2.8 3.8 3.8

Psig 125 65 65 50 40 50 40 55 55

Maximum Diaphragm

Casing Pressure(4)(5)

Bar 9.6 5.2 5.2 4.1 3.4 4.1 3.4 4.5 4.5

Psig 140 75 75 60 50 60 50 65 65

Material Temperature

Capabilities

_CNitrile Elastomers: -40 to 82_C, Silicone Elastomers: -54 to 149_C, Fluorocarbons: -18 to 149_C

_FNitrile Elastomers: -40 to 180_F, Silicone Elastomers: -65 to 300_F, Fluorocarbons: 0 to 300_F

Pressure Connections

(internal)

1/4 NPT X X X X X X X --- ---

1/2 NPT --- --- --- --- --- --- --- X X

Approximate Weights kg 16 22 23 37 49 42 53 107 116

Lb 36 48 51 82 107 92 116 235 255

1. These values also apply to the 657-4 actuator construction.

2. Actuator travel may be less than the value listed after connecting the actuator to the valve.

3. Maximum travel for 657-4 is 102 mm (4 inches).

4. Normal operating diaphragm pressure must not exceed maximum diaphragm casing pressure and must not produce a force on the actuator stem greater than the maximum allowable out

put thrust or the maximum allowable valve stem load. Contact your Emerson Process Management sales office with questions concerning maximum allowable valve stem load.

5. This maximum casing pressure is not to be used for normal operating pressure. Its purpose is to allow for typical regulator supply settings and/or relief valve tolerances.

Description

The 657 actuator (figure 1) and the 657-4 actuator are direct-acting, spring-opposed diaphragm actuators. They

provide automatic operation of control valve body assemblies. The 657 actuator offers 76 mm (3 inches) maximum

actuator travel. The 657-4 actuator provides 102 mm (4 inches) maximum actuator travel. Both actuators position the

valve plug in response to varying pneumatic loading pressure on the actuator diaphragm. Figure 2 shows the

operation of these actuators.

A 657 or 657-4 actuator can be equipped with either a top-mounted or a side-mounted handwheel assembly. A

top-mounted handwheel assembly is used as an adjustable up travel stop to limit actuator travel in the up direction

(see figure 2). A side-mounted handwheel assembly is usually used as an auxiliary manual actuator. Adjustable

casing-mounted up or down travel stops are also available for this actuator.

Note

If repeated or daily manual operation is expected, the actuator should be equipped with a side-mounted handwheel rather than a

casing-mounted travel stop or top-mounted handwheel.

The side-mounted handwheel is designed for more frequent use as a manual operator.

Specifications

Refer to table 1 for Specifications of the 657 and 657-4 actuators. See the actuator nameplate for specific information

about your actuator.

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Figure 2. Schematic of Fisher 657 and 657-4 Actuators

SPRING LIFTS

STEM UP

AIR PUSHES

STEM DOWN

STEM

AF3833-A

A0792-2

Educational Services

For information on available courses for Fisher 657 diaphragm 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: 800-338-8158 or

Phone: 641-754-3771

FAX: 641-754-3431

e-mail: education@emerson.com

Installation

Key number locations are shown in figures 6, 7, and 8, unless otherwise indicated. Also, refer to figure 3 for location of

parts.

WARNING

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.

CAUTION

To avoid parts damage, do not use an operating pressure that exceeds the Maximum Diaphragm Casing Pressure (table 1)

or produces a force on the actuator stem greater than the Maximum Allowable Output Thrust (table 1) or the maximum

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allowable valve stem load. (Contact your Emerson Process Management sales office with questions concerning maximum

allowable valve stem load.)

DValve/Actuator Assembly: If the actuator and valve are shipped together as a control valve assembly, it has been

adjusted at the factory, and may be installed in the pipeline. After installing the valve in the pipeline, refer to the

Loading Connection procedures.

DActuator Mounting: If the actuator is shipped separately or the actuator has been removed from the valve, it is

necessary to mount the actuator on the valve before placing the valve in the pipeline. Refer to the actuator

mounting procedures before placing the valve in service. You may perform the Bench Set Spring Adjustment

procedures in this section to confirm that the adjustment has not changed since it was shipped from the factory.

DPositioner: If a positioner is installed, or is to be installed on the actuator, refer to the positioner instruction manual

for installation. During the adjustment procedures, it will be necessary to provide a temporary loading pressure to

the actuator diaphragm.

Mounting the Actuator on the Valve

The 657 actuator spring loading pushes the actuator stem up towards the actuator diaphragm (see figure 2). This

spring action moves the stem away from the valve while installing the actuator.

CAUTION

If the valve stem is allowed to remain in the up position (towards the actuator) during mounting, it can interfere with the

actuator mounting, possibly damage valve stem threads or bend the valve stem. Be sure the valve stem is pushed down

(into the valve body), away from the actuator while mounting.

Provide a temporary method of applying diaphragm loading pressure to the diaphragm to extend the actuator stem

during bench set spring adjustments.

1. Provide a vise or some other method of supporting the valveandtheweightoftheactuatorduringassembly.For

direct or reverse acting valves, push the valve stem down away from the actuator while mounting the actuator.

2. Screw the stem locknuts all the way onto the valve stem. With the concave side of the travel indicator disk (key 14)

facing the valve, install the travel indicator disk on the valve stem. (Note: The travel indicator disk is not used with

size 87 actuators.)

3. Lift or hoist the actuator onto the valve bonnet:

a. For size 87 actuators, insert the cap screws and tighten the hex nuts, securing the actuator to the bonnet.

b. Forallothersizeactuators,screw the yoke locknut onto the valve bonnet and tighten the locknut. (Note: On

small size actuators, it may be necessary to remove the indicator disk and re-install it while lowering the actuator

on to the valve because the disk will not go through the actuator yoke opening.)

4. Do not connect the actuator stem to the valve stem at this time. Whenever the actuator is installed on the valve, it

is recommended to perform the Bench Set Spring Adjustment procedure to verify that the actuator is still adjusted

correctly.

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Figure 3. Actuator Mounting Components for Size 30 through 70 Actuators

VALVE STEM

YOKE LOCK NUT

YOKE BOSS DIAMETER

BONNET

TYPICAL VALVE

(REFER TO VALVE MANUAL)

W6199-1

MATCH LINE

FOR ACTUATOR

NPT INTERNAL CONNECTION

DIAPHRAGM CASING

DIAPHRAGM AND STEM

SHOWN IN UP POSITION

DIAPHRAGM PLATE

ACTUATOR SPRING

ACTUATOR STEM

SPRING SEAT

SPRING ADJUSTOR

STEM CONNECTOR

YOKE

TRAVEL INDICATOR DISK

INDICATOR SCALE

W0363-1

LOWER DIAPHRAGM CASING

Discussion of Bench Set

The bench set pressure values are used to adjust the initial compression of the actuator spring with the valve-actuator

assembly “on the bench.” The correct initial compression is important for the proper functioning of the valve-actuator

assembly when it is put into service and the proper actuator diaphragm operating pressure is applied.

The bench set values are established with the assumption that there is no packing friction. When attempting to adjust

the spring in the field, it is very difficult to ensure that there is no friction being applied by “loose” packing.

Accurate adjustment to the bench set range can be made during the actuator mounting process by making the

adjustment before the actuator is connected to the valve (see the Spring Verification procedure).

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Figure 4. Bench Set Adjustment

SPRING ADJUSTER

LOWER BENCH SET

LOADING PRESSURE

UPPER BENCH SET

PRESSURE MARK

VALVE

STEM

RATED VALVE

TRAVEL MEASURE

MARK

VALVE

STEM HERE

UPPER BENCH SET

LOADING PRESSURE

ACTUATOR STEM

NOTES:

THE LOWER PSIG LOADING PRESSURE (MARKED ON NAMEPLATE) WHERE THE FIRST MOVEMENT OF

ACTUATOR STEM IS DETECTED.

THE UPPER PSIG LOADING PRESSURE EXTENDS ACTUATOR STEM.

MARK THIS POINT WITH TAPE OR A MARKER.

MEASURE DISTANCE OF TRAVEL. IT SHOULD EQUAL THE TRAVEL SPAN SHOWN ON THE NAMEPLATE.

2

3

1

34

40A8715-B

B2426

1

2

3

4

Spring Verification

Ensure that the actuator stem is at the top of its travel as shown in figure 4 and not connected to the valve. (Note:

Some spring compression is required to move the diaphragm to the top of its travel.) The steps provided are the same

for push-down-to-close (direct acting) or push-down-to-open (reverse acting) valves.

WARNING

When moving the actuator stem with diaphragm loading pressure, use caution to keep hands and tools out of the actuator

stem travel path. Personal injury and/or property damage is possible if something is caught between the actuator stem and

other control valve assembly parts.

Also, provide a certified pressure gauge suitable to accurately read the diaphragm pressure from 0 through 0.3 bar (5

psig) above the upper operating range pressure marked on the nameplate. Apply loading pressure to the diaphragm.

CAUTION

Stroke the actuator a few times to ensure that the pressure gauge is working correctly, and that the actuator is functioning

properly. To prevent actuator damage, it is important to ensure that the actuator stem is stroking smoothly and not

exhibiting binding or excessive friction. Binding or excessive friction could be an indicator of incorrect assembly or

damaged parts.

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1. If not already accomplished, provide a temporary means of applying an adjustable loading pressure to the actuator

during bench set adjustments.

2. Set the diaphragm loading pressure at 0 bar (0 psig). Then, slowly raise the pressure towards the lower bench set

pressure, as indicated on the nameplate, while checking for the first linear movement of the actuator stem. The

actuator stem should show movement at the lower bench set pressure. If movement occurs before or after the

lowerpressureisreached,adjustthespringadjuster(seefigure4)intooroutoftheyokeuntiltheactuatorstem's

movement is first detected at the lower bench set pressure.

Note

Before turning the spring adjuster on size 70 or 87 actuators, assemble the stem connector around the actuator stem and the

anti-rotating lug on the yoke. Mark the actuator stem as a visual reference to verify that stem rotation does not occur. Remove the

stem connector before rechecking the bench set.

3. Be sure the spring adjuster is adjusted to meet the requirements of step 2 above.

4. Apply the upper bench set pressure, as indicated on the nameplate. This pressure extends the actuator stem down

towards the valve. (Note: The actuator stem may slide over the valve stem as shown in figure 4.) At the end of the

actuator stem, use a marker or a piece of tape to mark the valve stem (see figure 4). (Note: If the actuator stem

does not pass over the valve stem, provide a method to mark this point of stem travel.)

5. Slowly decrease the diaphragm loading pressure to the lower bench set pressure, as indicated on the nameplate.

6. Measure the distance between the marker or tape on the valve stem to the end of the actuator stem. The distance

should match the rated travel indicated on the nameplate.

7. If the measured travel matches the nameplate travel, bench set is complete. Proceed to the Installing the Stem

Connector Assembly subsection.

8. If the measured travel is not exact, consider the spring free-length and spring rate tolerances may produce a slightly

different bench set than specified. Contact your Emerson Process Management sales office for assistance.

Installing the Stem Connector Assembly

When installing the stem connector assembly (key 26), theactuatorandvalvestemthreadsshouldengagethe

threads of the stem connector by the distance equal to the diameter of the stem.

WARNING

Install the stem connector securely before a positioner is mounted to the actuator and pressurized, using only a

regulator-controlled air supply, not the positioner, to move the actuator stem.

To avoid personal injury or property damage, keep hands and tools out of the actuator stem travel path while applying

loading pressure to move the actuator stem in the following steps.

CAUTION

To avoid damaging the seating surfaces, do not rotate the valve plug while it is seated. Exercise care while installing the

stem connector assembly to avoid damage to the valve plug stem and valve stem threads.

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Note

Replacement stem connectors are an assembly of two stem connector halves, cap screws, and a spacer between the connector

halves. Remove the spacer and discard, if present, before clamping the actuator and valve stems together. Use only a mated pair

of stem connector halves.

1. If necessary, push the valve stem down so that it is touching the seat ring on direct acting valves. For reverse acting

valves, push the stem down to the open position.

If necessary, screw the valve stem locknuts down, away from the connector location. For all actuators except size 87,

ensure that the travel indicator disk (key 14) is located on top of the locknuts.

2. Slowly increase the diaphragm pressure to the upper bench set pressure. This should be the same pressure used in

the Spring Verification steps, and it is marked on the nameplate.

3. Place the stem connector half with the threaded holes, approximately half way between the actuator and valve

stems, and align with the stem connector. A slight change to loading pressure may be necessary to align the

threads. Refer to figures 6, 7, and 8 to help locate the connector position.

CAUTION

Incomplete engagement of either the valve stem or actuator stem in the stem connector can result in stripped threads or

improper operation. Be sure that the length of each stem clamped in the stem connector is equal to or greater than one

diameter of that stem. Damage to threads on either stem or in the stem connector can cause the parts to be replaced

prematurely. Do not loosen the cap screws when the stem connector has spring or loading pressure force applied.

4. Install the other half of the stem connector and insert the cap screws and tighten them while ensuring even spacing

between the stem connector halves on all sides. If installing a positioner, also attach the feedback bracket at the

same time.

CAUTION

Over-tightening the valve stem locknuts can make disassembly difficult.

5. Screw the valve stem locknuts up against the stem connector for the size 87 actuator. For all other actuator sizes,

screw the valve stem locknuts up until the indicator disk contacts the bottom of the stem connector. Do not

overtighten the locknuts.

6. Slowly stroke the valve from fully open to fully closed and verify full rated travel is achieved.

Be sure that the valve is in the closed position. Loosen the screws on the travel indicator scale (key 18), and align it with

the travel indicator disk (key 14) or stem connector for the size 87 actuator. Stroke the valve full travel to ensure that

the travel matches the rated travel on the nameplate. If valve travel is not correct, repeat the stem connector

procedure.

Friction Discussion

If you are attempting to adjust the bench set after the actuator is connected to the valve and the packing tightened,

you must take friction into account. Make the spring adjustment so full actuator travel occurs at the bench set values

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(a) plus the friction force divided by the effective diaphragm area with increasing diaphragm pressure or (b) minus the

friction force divided by the effective diaphragm area with decreasing diaphragm pressure.

If the stem connector assembly has been installed, the valve friction may be determined by the following procedure:

1. Install a pressure gauge in the actuator loading pressure line that connects to the actuator diaphragm casing.

Note

Steps 2 and 4 require that you read and record the pressure shown on the pressure gauge.

2. Increase the actuator diaphragm pressure and read the diaphragm pressure as the actuator reaches a travel

position in the rated travel of the valve that does not contact a travel stop. Make a reference mark on the travel

indicator scale using tape or some other method at this point.

3. Increase the actuator diaphragm pressure until the actuator is at a travel position greater than the position

referenced in step 2 using the reference point to identify first movement.

4. Decrease the actuator diaphragm pressure and read the diaphragm pressure as the actuator returns to the position

referenced in step 2.

The difference between the two diaphragm pressure readings is the change in the diaphragm pressure required to

overcome the friction forces in the two directions of travel.

5. Calculate the actual friction force:

Friction

Force, = 0.5

pounds

Difference

in pressure

readings, psig

¢

Effective

diaphragm area,

inches2

Refer to table 1 for the effective diaphragm area.

It is difficult to rotate the spring adjustor (key 74, figures 6, 7, and 8) when the full actuator loading pressure is applied

to the actuator. Release the actuator loading pressure before adjusting. Then re-apply loading pressure to check the

adjustment.

Note

For push-down-to-close valves, the valve plug seat is the limit for downward travel and the actuator up-stop is the limit for upward

(away from the valve) movement. For push-down-to-open valves, the actuator down stop is the limit for downward movement,

and the valve seat is the limit for upward (away from the valve) movement.

Deadband Measurement

Deadband is caused by packing friction, unbalanced forces, and other factors in the control valve assembly. Deadband

is the range a measured signal can vary without initiating a response from the actuator (see figure 5). Each actuator

spring has a fixed spring rate (force divided by compression). You have verified that the right spring was installed in the

actuator by completing the Spring Verification steps.

Deadband is one factor that affects the control valve assembly operation during automatic loop control. The control

loop tolerance for deadband varies widely depending on the loop response. Some common symptoms of the

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deadband being too wide are no movement, a “jump” movement, or oscillating movements of the actuator during

automatic loop control. The following steps are provided to determine the span of deadband. The percent of

deadband is helpful in troubleshooting problems with the process control loop.

1. Start at a pressure near the lower bench set pressure, slowly increase pressure until the valve is approximately at

mid-travel. Note this pressure reading.

2. Slowly decrease pressure until movement of the valvestemisdetected,andnotethispressure.

3. The difference between these two pressures is deadband, in psi.

4. Calculate the percent of deadband by:

Deadband, psi

Deadband = –––––––––––––– = nn%

Bench Set Span, psi

Figure 5. Typical Valve Response to Deadband

UPPER

BENCH SET

PRESSURE

LOWER

BENCH SET

PRESSURE

9

3

0

CLOSING

VALVE

15 1.0

0.6

0.2

OPENING

VALVE

OPEN

CLOSED MID RANGE

VALVE TRAVEL

DIAPHRAGM PRESSURE, PSIG

DIAPHRAGM PRESSURE, BAR

RANGE OF

DEADBAND 1

UPPER

BENCH SET

PRESSURE

LOWER

BENCH SET

PRESSURE

9

3

0

CLOSING

VALVE

15 1.0

0.6

0.2

OPENING

VALVE

OPEN CLOSED

MID RANGE

VALVE TRAVEL

DIAPHRAGM PRESSURE, PSIG

DIAPHRAGM PRESSURE, BAR

1

NOTE:

DEADBAND IS CAUSED BY FRICTION.

A6763-2

RANGE OF

DEADBAND 1

DIRECT ACTING VALVE REVERSE ACTING VALVE

BENCH SET BENCH SET

Loading Connection

The loading pressure connections are made at the factory if the valve, actuator, and positioner come as a unit. Keep

the length of tubing or piping as short as possible to avoid transmission lag in the control signal. If a volume booster,

valve positioner or other accessory is used, be sure that it is properly connected to the actuator. Refer to the positioner

instruction manual or other manuals as necessary.

For actuators shipped separately or whenever the actuator pressure connections are installed, use the following steps:

1. Connect the loading pressure piping to the NPT internal connection in the top of the diaphragm casing.

2. For sizes 70 and 87 actuators, if necessary, remove the 1/4 NPT bushing if a 1/2 NPT internal connection is needed

to increase connection size. The connection can be made with either piping or tubing.

3. Cycle the actuator several times to be sure that the valve stem travel is correct when the correct pressure ranges are

applied to the diaphragm.

WARNING

If valve stem travel appears to be incorrect, refer to the Bench Set Spring Adjustment procedures at the beginning of this

section. To avoid personal injury or product damage, do not place the valve into service if it is not reacting correctly to

diaphragm loading pressure changes.

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Maintenance

Actuator parts are subject to normal wear and must be inspected and replaced when necessary. The frequency of

inspection and replacement depends on the severity of service conditions.

WARNING

Avoid personal injury or property damage from sudden release of process pressure or bursting 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 operating lines providing air pressure, electric power, or a control signal to the actuator. Be sure the

actuator cannot suddenly open or close the valve.

DUse bypass valves or completely shut off the process to isolate the valve from process pressure. Relieve process pressure

from both sides of the valve. Drain the process media from both sides of the valve.

DVent the power actuator loading pressure and relieve any actuator spring precompression.

DUse lock-out procedures to be sure that the above measures stay in effect while you work 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.

Actuator Maintenance

This procedure describes how the actuator can be completely disassembled and assembled. When inspection or

repairs are required, disassemble only those parts necessary to accomplish the job; then, start the assembly at the

appropriate step.

Key numbers refer to figures 6, 7, or 8 unless otherwise indicated. Figure 6 shows the sizes 30 through 60 actuators,

figure 7 illustrates the sizes 70 actuator, and figure 8 shows the size 87 actuator.

Actuator Disassembly

1. Bypass the control valve. Reduce the loading pressure to atmospheric, and remove the tubing or piping from the

upper diaphragm casing (key 1).

WARNING

To avoid personal injury from the precompressed spring force thrusting the upper diaphragm casing (key 1) away from the

actuator, relieve spring compression (step 2, below), and carefully remove casing cap screws (key 22) (step 4, below).

2. Thread the spring adjuster (key 12) out of the yoke (key 9) until all spring compression is relieved.

3. If required, remove the actuator from the valve body by separating the stem connector (key 26) and removing the

yoke locknut or, for the size 87 actuator, the stud bolt nuts. Separate the stem connector by loosening the stem

nuts (keys 15 and 16) and unscrewing the two cap screws.

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4. Remove the diaphragm casing cap screws and nuts (keys 22 and 23), then lift off the upper diaphragm casing

(key 1).

5. Remove the actuator diaphragm (key 2).

6. Remove the diaphragm plate, actuator stem, and cap screw (keys 4, 10 and 3) as an assembly. This assembly can be

broken down further, if required, by removing the cap screw (key 3).

7. Remove the actuator spring (key 6) and the spring seat (key 11).

8. Ifrequired,removethelowerdiaphragmcasing(key5)fromtheyoke(key9)bylooseningthecapscrews(key8)

that hold it in place.

9. If required, remove the spring adjuster (key 12) by unscrewing it from the yoke (key 9).

Table 2. Actuator Assembly Recommended Torque Values

DESCRIPTION, KEY

NUMBER ACTUATOR SIZE THREAD SIZE, INCH TORQUE

N•m Lbf•ft

Diaphragm plate to stem,

key 3

30 3/8-24 41 30

34 and 40 1/2-20 54 40

45 to 70 and 87 3/4-16 149 110

MO U-bolt, key 170 34 and 40 1/2-13 81 60

45 to 60 5/8-11 163 120

MO U-bolt, key 147 34 and 40 3/8-16 41 30

MO U-bolt, key 144 45 to 60 3/8-16 41 30

Diaphragm casing, key 23(1) 30 to 76 and 87 3/8-24 27 20

1. Observe tightening pattern and procedure described in the appropriate Actuator Assembly section.

Actuator Assembly

Refer to table 2 as appropriate.

1. Coat the threads and the spring seat bearing surface of the spring adjuster (key 12) with lithium grease (key 241),

andthreadthespringadjusterintotheyoke(key9).Placethespringseat(key11)intheyokeonthespringadjuster

and turn the spring adjuster to ensure that threads are properly engaged.

2. Position the lower diaphragm casing (key 5) on the yoke (key 9), and fasten the parts together by installing and

evenly tightening the cap screws (key 8).

3. Set the actuator spring (key 6) squarely onto the spring seat (key 11).

4. If the diaphragm plate and actuator stem (keys 4 and 10) are separate, fasten them together using the cap screw

and washer (keys 3 and 25). Coat the cap screw threads with lithium grease (key 241). Tighten the cap screw (key 3)

to 41 NSm(30lbfSft) torque for size 30 actuators, 54 NSm(40lbfSft) torque for size 34 and 40 actuators, or 149

NSm(110lbfSft) torque for size 45 to 87 actuators. Slide the actuator stem and diaphragm plate (keys 10 and 4)

into the yoke (key 9) so that the actuator spring (key 6) fits squarely between the diaphragm plate and the spring

seat (key 11). Then slide the diaphragm rod through the spring adjuster (key 12).

5. Place the diaphragm (key 2) pattern-side up on the diaphragm plate (key 4). Align the holes in the diaphragm and

the lower diaphragm casing (key 5).

6. Position the upper diaphragm casing (key 1) on the diaphragm (key 2) and align the holes.

Note

When you replace actuator diaphragms in the field, take care to ensure the diaphragm casing bolts are tightened to the proper

load to prevent leakage, but not crush the material. Perform the following tightening sequence with a manual torque wrench for

size 30-70 and 87 actuators.

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CAUTION

Over-tightening the diaphragm casing cap screws and nuts (keys 22 and 23) can damage the diaphragm. Do not exceed 27

NSm (20 lbfSft) torque.

Note

Do not use lubricant on these bolts and nuts. Fasteners must be clean and dry.

7. Insert the cap screws (key 22), and tighten the hex nuts (key 23) in the following manner. The first four hex nuts

tightened should be diametrically opposed and 90 degrees apart. Tighten these four hex nuts to 13 NSm(10lbfSft).

8. Tighten the remaining hex nuts in a clockwise, criss-cross pattern to 13 NSm(10lbfSft).

9. Repeat this procedure by tightening four hex nuts, diametrically opposed and 90 degrees apart, to a torque of 27

NSm(20lbfSft).

10. Tighten the remaining hex nuts in a clockwise, criss-cross pattern to 27 NSm(20lbfSft).

11. After the last hex nut is tightened to 27 NSm(20lbfSft), all of the hex nuts should be tightened again to 27 NSm

(20 lbfSft) in a circular pattern around the bolt circle.

12. Once completed, no more tightening is recommended.

13. Mount the actuator on the valve by following the procedures in the Installation section.

Top-Mounted Handwheel Assembly

A top-mounted handwheel assembly (figures 9 and 10) is usually used as an adjustable casing-mounted up travel stop

to limit full retraction of the actuator stem. Turning the handwheel clockwise moves the the handwheel stem (key

133, figures 9 and 10) down, compressing the spring.

Instructions are given below for complete disassembly and assembly of the top-mounted handwheel assembly.

Perform the disassembly only as far as necessary to accomplish the required maintenance; then, begin the assembly at

the appropriate step.

Key numbers refer to figure 9 (sizes 30 through 60) and figure 10 (sizes 70 and 87), unless otherwise indicated.

Disassembly for Top-Mounted Handwheel

1. Turn the handwheel (key 51) counter-clockwise so that the handwheel assembly is not causing any spring

compression.

2. Bypass the control valve, reduce loading pressure to atmospheric, and remove the tubing or piping from the upper

handjack body (key 142, figures 9 or 10).

WARNING

To avoid personal injury from the precompressed spring force thrusting the upper diaphragm casing (key 1) away from the

actuator, thread the spring adjuster (key 12) out of the yoke until all spring compression is relieved, then carefully remove

casing cap screws (key 22).

3. Remove the diaphragm casing cap screws and nuts (keys 22 and 23, figures 6, 7, or 8), and lift off the upper

diaphragm casing and handwheel assembly.

4. If necessary, the handwheel assembly can be separated from the diaphragm casing by removing the cap screws

(key 141). This may be necessary to replace the O-ring (key 139), or for ease of handling.

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5. Loosen the travel stop locknut (key 137), and turn the handwheel (key 51) counter-clockwise. Remove the cotter

pin and stop nut (keys 247 and 54), then lift off the handwheel.

6. Unscrew the travel stop locknut (key 137) from the handwheel stem (key 133), and turn thestemoutofthebottom

of the body (key 142). A screwdriver slot is provided on the top of the stem for this purpose.

7. Replace the O-ring (key 138) in the body (key 142).

8. For a handwheel assembly used on sizes 30 through 60 actuators, complete the disassembly by driving out the

groove pin (key 140, figure 9) and sliding the pusher plate (key 135, figure 9) off the stem.

For a handwheel assembly used on a sizes 70 or 87 actuator, complete the disassembly by unscrewing the retaining

screw (key 174, figure 10) and removing the thrust bearing and pusher plate (keys 175 and 135, figure 10). Because

the retaining screw (key 174) has left-hand threads, turn clockwise to loosen.

Assembly for Top-Mounted Handwheel

1. For a handwheel assembly used on sizes 30 through 60 actuators, coat the end of the handwheel stem (key 133,

figure 9) with anti-seize lubricant (key 244). Slide the pusher plate (key 135, figure 9), onto the stem, and drive in

thegroovepin(key140,figure9)tolockthepiecestogether.

For a handwheel assembly used on a sizes 70 or 87 actuator, pack the thrust bearing (key 175, figure 10) with

anti-seize lubricant (key 244). Place the thrust bearing in the pusher plate (key 135, figure 10), slide the two parts onto

the handwheel stem (key 133). Coat the retaining screw threads with thread locking sealant (key 242). Insert and

tighten the retaining screw (key 174, figure 10).

2. Coat the O-ring (key 138) with lithium grease (key 241), and insert the O-ring in the body (key 142).

3. Coat the threads of the handwheel stem (key 133) with anti-seize lubricant (key 244). Screw the stem into the body

(key 142).

4. Thread the travel stop locknut (key 137) onto the handwheel stem (key 133).

5. Place the handwheel (key 51), and the stop nut (key 54) on the handwheel stem (key 133). Tighten the hex nut to

fasten the parts together. Secure thenutwiththecotterpin(key247).

6. If the body (key 142) was separated from the upper diaphragm casing (key 1, figures 6, 7, or 8), lubricate the O-ring

(key 139) with lithium grease (key 241), and place the O-ring in the body. Align the holes in the diaphragm casing

and the body, insert the cap screws (key 141), and tighten them evenly following a crisscross pattern to ensure a

proper seal.

7. Position the upper diaphragm casing (key 1) on the diaphragm (key 2) and align the holes.

Note

When you replace actuator diaphragms in the field, take care to ensure the diaphragm casing bolts are tightened to the proper

load to prevent leakage, but not crush the material. Perform the following tightening sequence with a manual torque wrench for

size 30-70 and 87 actuators.

CAUTION

Over-tightening the diaphragm casing cap screws and nuts (keys 22 and 23) can damage the diaphragm. Do not exceed 27

NSm (20 lbfSft) torque.

Note

Do not use lubricant on these bolts and nuts. Fasteners must be clean and dry.

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8. Insert the cap screws (key 22), and tighten the hex nuts (key 23) in the following manner. The first four hex nuts

tightened should be diametrically opposed and 90 degrees apart. Tighten these four hex nuts to 13 NSm(10lbfSft).

9. Tighten the remaining hex nuts in a clockwise, criss-cross pattern to 13 NSm(10lbfSft).

10. Repeat this procedure by tightening four hex nuts, diametrically opposed and 90 degrees apart, to a torque of 27

NSm(20lbfSft).

11. Tighten the remaining hex nuts in a clockwise, criss-cross pattern to 27 NSm(20lbfSft).

12. After the last hex nut is tightened to 27 NSm(20lbfSft), all of the hex nuts should be tightened again to 27 NSm

(20 lbfSft) in a circular pattern around the bolt circle.

13. Once completed, no more tightening is recommended.

14. Mount the actuator on the valve following the procedures in the Installation section.

Side-Mounted Handwheel for Sizes 34 through 60 Actuators

A side-mounted handwheel assembly (figures 11 and 12) is normally used as a manual actuator for sizes 34 through 60

actuators. Turning the handwheel counter-clockwise past the neutral position opens the valve. Two levers (key 146,

figure 11) on a handwheel assembly operate the valve by moving the valve stem.

Instructions are given below for complete disassembly and assembly. Perform the disassembly only as far as necessary

to accomplish the required maintenance; then begin the assembly at the appropriate step.

Disassembly for Side-Mounted Handwheel (Size 34-60)

1. If desired, the handwheel assembly can be removed from the actuator yoke. To do this, remove the hex nuts (keys

147 and 170) from the U-bolts (keys 166 and 143) that hold the assembly to the yoke for the size 34 and size 40.

Remove the hex nuts (keys 144 and 170) from the Ubolts (keys 166 and 143) that hold the assembly to the yoke for

thesize45throughsize60.

2. Remove the retaining ring (key 154) and drive out the lever pivot pin (key 153).

3. Two screws (key 156) hold the right- and left-hand levers (key 146) together. Remove the screw from the top of the

levers so that the levers will drop down out of the assembly. Disassemble further, if necessary, by removing the

other screw.

4. Remove the screw (key 161) and pointer mounting bolt (key 159, not shown) located behind pointer (key 160).

5. Remove the stop nut (key 54), lockwasher (key 150), and washer (key 149). Then remove the handwheel (key 51),

being careful not to lose the small ball (key 55) and spring (key 56).

6. Loosen the locking set screw (key 168, figure 11). Then, using a suitable tool, unscrew the bearing retainer (key

136).

7. Pull the handwheel screw assembly (key 145) out of the handwheel body. The operating nut (key 132) will come

out with the screw. Also remove the bushing (key 151) on size 34 and 40.

8. If required, remove the two ball bearings (key 152), onefromthebearingretainerandtheotherfromthe

handwheel body.

Assembly for Side-Mounted Handwheel (Size 34-60)

1. Pack the ball bearings (key 152) with anti-seize lubricant (key 244). Insert one bearing and the bushing (key 151)

into the handwheel body (key 142) as shown in figure 11 or 12. The bushing is not used in a handwheel assembly for

sizes 45 through 60 actuators.

2. Coat the handwheel screw assembly (key 145) threads with anti-seize lubricant (key 244), and thread the operating

nut (key 132) onto the screw. Slide the second ball bearing (key 152) onto the screw, and insert the end of the

screw into either the bushing (key 151), as shown in figure 11, or into the bearing.

3. Thread the bearing retainer (key 136) into the body (key 142). Completely tighten the bearing retainer, and then

loosen it one-quarter turn. Tighten the set screw (key 168, figure 11) to hold the bearing retainer in place.

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4. Coat the groove in the handwheel body (key 142) with lithium grease (key 241). Insert the spring (key 56) and ball

(key 55) into the handwheel (key 51). Holding the ball andspringinthehandwheel,putthe handwheel, the washer

(key 149), the lockwasher (key 150), and the stop nut (key 54) onto the end of the handwheel screw (key 145).

Tighten the stop nut.

5. Position the pointer mounting bolt (key 159, not shown) and pointer (key 160) as shown in figure 11 or 12. Insert

and tighten the screw (key 161).

6. Assemble the two levers (key 146) with the cap screws (key 156) for handwheel assemblies for sizes 45, 50, and 60

actuators, or with the machine screws (key 156) for handwheel assemblies on sizes 34 and 40 actuators.

7. If the handwheel assembly was removed from the yoke (key 9, figures 6, 7, or 8), remount the handjack assembly to

theyokeusingthedowelpinsforalignment.Forthesize34andsize40,positiontheUbolts and JBolts (keys 166

and 143) on the yoke, and handtighten the hex nuts (keys 170 and 147) to hold the handwheel assembly in

position. For the size 45 through size 60, position the Ubolts (keys 166 and 143) on the yoke, and handtighten the

hex nuts (keys 170 and 144) to hold the handwheel assembly in position. Cap screws (key 163) should be tight

against the yoke legs to provide stability. Tighten the nuts (key 144 for the size 30 and size 40, key 158 for the size

45 through size 60). For the size 34 and size 40 finish tightening the Ubolt nuts to 81 N•m [60 lbf•ft] (key 170)

and 41 N•m [30 lbf•ft] (key 147). For the size 45 through size 60 finish tightening the Ubolt nuts to 163 N•m [120

lbf•ft] (key 170) and 41 N•m [30 lbf•ft] (key 144). Be sure the handwheel assembly remains flat against the

mounting pad and perpendicular to the yoke.

8. Position the levers (key 146) as shown in figure 11 or 12. Insert the lever pivot pin (key 153), and snap the retaining

ring (key 154) onto the lever pivot pin.

Side-Mounted Handwheel for Sizes 70 and 87 Actuators

A side-mounted handwheel assembly (figure 13) is normally used as a manual actuator for sizes 70 and 87 actuators.

Turning the handwheel counter-clockwise past the neutral position opens the valve body. A pair of sleeves (keys 34

and 46, figure 13) operates the valve by moving the valve stem.

Instructions are given below for complete disassembly and assembly. Perform the disassembly only as far as necessary

to accomplish the required maintenance; and then begin the assembly at the appropriate step.

Key numbers refer to figures 7 or 8, and 11.

Disassembly for Side-Mounted Handwheel (Size 70 & 87)

1. Bypass the control valve, reduce loading pressure to atmospheric, and remove the tubing or piping from the upper

diaphragm casing (key 1).

2. Remove cover band (key 60), and relieve spring compression by turning the spring adjuster (key 12)

counter-clockwise.

3. Remove the cap screws and casing screws and nuts (keys 22 and 23), lift off the upper diaphragm casing (key 1),

and remove the diaphragm (key 2).

4. Remove the cap screw (key 3) and the washer (key 25), then take off the diaphragm plate (key 4).

5. Remove the actuator spring (key 6), the upper sleeve (key 34), and the spring seat (key 11) from the yoke cylinder.

This exposes the needle bearing and races (keys 37 and 38).

6. Separate the halves of the stem connector assembly (key 26) by removing the two cap screws. Remove the

actuator stem (key 10).

7. Remove the travel indicator (key 14).

CAUTION

To avoid possible product damage, do not move the neutral indicator scale after completing the following step.

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8. Turnthehandwheeltoraisethelowersleeve(key46)untilitisfreeofthewormgear(key44).Liftoutthelower

sleeve and the key (key 47). DO NOT move the neutral indicator scale (key 59).

9. Loosen two set screws (key 40), then unscrew the bearing retainer flange (key 39) and the attached spring adjuster

(key 12), using a suitable tool in the open neck of the flange. Take out the gear and two needle bearings (key 42),

oneoneachsideofthegear.

10. Remove the spring adjuster (key 12) from the bearing retainer flange (key 39). If desired, the worm shaft (key 45)

and associated parts can be disassembled to replace or lubricate them. To do so, first remove the stop nut (key 54)

and the handwheel (key 51). Do not lose the small ball (key 55) and spring (key 56).

11. Loosen the two set screws (key 41), and unscrew the front and back retainers (keys 48 and 49). The ball bearings

(key 50) will come out with the retainers.Removethewormshaft(key45).

Assembly for Side-Mounted Handwheel (Size 70 & 87)

1. The front and back retainers (keys 48 and 49) each have a slot in their threads for a set screw (key 41). Pack the ball

bearings (key 50) with anti-seize lubricant (key 244), and insert one ball bearing into the back retainer (key 49) as

showninfigure13.

2. Thread the back retainer and ball bearing (keys 49 and 50) into the yoke (key 9). Align the slot in the bearing

retainer with the set screw hole in the yoke, insert the set screw (key 41), and tighten it.

3. Coat the worm shaft (key 45) threads with anti-seize lubricant (key 244), and slide the shaft into the yoke so that

the end of the shaft fits snugly into the back retainer (key 49).

4. Insert the bearing into the front retainer (key 48), and thread the retainer and ball bearing into the yoke (key 9).

Align the slot in the retainer with the hole in the yoke, insert the set screw (key 41), and tighten it.

5. Put the spring and ball (keys 56 and 55) into the handwheel (key 51). Slide the handwheel onto the worm shaft (key

45). Thread the stop nut (key 54) onto the shaft.

6. Pack the two needle bearings (key 42) and coat the worm gear (key 44) threads with anti-seize lubricant (key 244).

Insert the key (key 47), the bearings, and the gear into the yoke (key 9) as shown in figure 13.

7. Slots are cut into the threads of the bearing retainer flange (key 39). Thread the flange into the yoke (key 9) so that

the slots and the holes for the set screws (key 40) align. Insert the screws, and tighten them.

8. The lower sleeve (key 46) has milled slots in one end. Coat the sleeve threads with lithium grease (key 241), then

slide the end of the lower sleeve with the milled slots into the bearing retainer flange (key 39).

9. Turn the handwheel (key 51), and feed the sleeve through the gear so that the slot in the lower sleeve (key 46)

engages the key (key 47) in the yoke (key 9). Continue turning the handwheel until the lower sleeve protrudes 93.7

mm (3.69 inches) below the surface of the yoke. The pininthesideofthelowersleeveshouldlineupwiththe

extension on the neutral indicator.

10. Slide the square end of the actuator stem (key 10) throughthelowersleeve(key46)sothestemcontactsthe

valvestem.Clampbothstemsinthetwohalvesofthestemconnector(key26).Thestemconnectorshouldnotbe

closer than 3.2 mm (1/8 inches) to the lower sleeve when the actuator stem is in the retracted position. This

adjustment will provide approximately 3.2 mm (1/8 inches) of free travel of the lower sleeve in either direction for

manual operation. Fasten the stem connector halves together with the cap screws.

11. Pack the needle bearing and race (keys 37 and 38) with lithium grease (key 241), and slide the bearing onto the

spring adjuster (key 12).

12. Put the spring seat and actuator spring (keys 11 and 6) into the yoke (key 9). Slide the upper sleeve (key 34) onto

the actuator stem (key 10).

13. Put the diaphragm plate and washer (keys 4 and 25) onto the actuator stem (key 10). Insert and tighten the cap

screw (key 3) to fasten the parts together.

14. Place the diaphragm (key 2) pattern-side up onto the diaphragm plate (key 4). Align the holes in the diaphragm

and the lower diaphragm casing (key 5).

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15. Position the upper diaphragm casing (key 1) onto the diaphragm (key 2) and align the holes.

Note

When you replace actuator diaphragms in the field, take care to ensure the diaphragm casing bolts are tightened to the proper

load to prevent leakage, but not crush the material. Perform the following tightening sequence with a manual torque wrench for

size 30-70 and 87 actuators.

CAUTION

Over-tightening the diaphragm casing cap screws and nuts (keys 22 and 23) can damage the diaphragm. Do not exceed 27

NSm (20 lbfSft) torque.

Note

Do not use lubricant on these bolts and nuts. Fasteners must be clean and dry.

16. Insert the cap screws (key 22), and tighten the hex nuts (key 23) in the following manner. The first four hex nuts

tightened should be diametrically opposed and 90 degrees apart. Tighten these four hex nuts to 13 NSm(10lbfSft).

17. Tighten the remaining hex nuts in a clockwise, criss-cross pattern to 13 NSm(10lbfSft).

18. Repeat this procedure by tightening four hex nuts, diametrically opposed and 90 degrees apart, to a torque of 27

NSm(20lbfSft).

19. Tighten the remaining hex nuts in a clockwise, criss-cross pattern to 27 NSm(20lbfSft).

20. After the last hex nut is tightened to 27 NSm(20lbfSft), all of the hex nuts should be tightened again to 27 NSm

(20 lbfSft) in a circular pattern around the bolt circle.

21. Once completed, no more tightening is recommended.

22. Mount the actuator onto the valve, following the procedures in the Installation section.

23. Return the actuator to service after completing the Loading Connection procedure in the Installation section and

theproceduresintheAdjustmentssection.

Casing-Mounted Adjustable Travel Stops

Note

If repeated or daily manual operation is expected, the actuator should be equipped with a manual top-mounted or side-mounted

handwheel. Refer to the Top-Mounted Handwheel and Side-Mounted Handwheel sections of this instruction manual.

The casing-mounted adjustable up travel stop (figures 14 or 15) limits the actuator stroke in the upward direction. To

adjust, first relieve actuator loading pressure before removing the travel stop cap (key 187, figure 14 or 15). Loosen

thetravelstopnut(key137).Thenturnthetravelstopstem(key133)clockwiseintothediaphragmcasetomovethe

actuator stem downward (or counter-clockwise to move the stem upward). Finally, tighten the travel stop nut and

replace the travel stop cap.

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The adjustable down travel stop (figure 16) limits the actuator stroke in the downward direction. To adjust, first relieve

actuator loading pressure before removing the travel stop cap (key 187). Then loosen the jam nut and adjust the stop

nut (keys 189 and 54) either down on the stem to limit travel, or up on the stem to allow more travel. Lock the jam nut

against the stop nut, then replace the closing cap.

Instructions are given below for disassembly and assembly. Perform the disassembly only as far as necessary to

accomplish the required maintenance; then, begin the assembly at the appropriate step.

Key numbers are shown in figures 14, 15, and 16.

Disassembly for Casing-Mounted Travel Stop

1. Bypass the control valve. Reduce the loading pressure to atmospheric, and remove the tubing or piping from the

connection in the body (key 142).

WARNING

To avoid personal injury from the precompressed spring force thrusting the upper diaphragm casing (key 1) away from the

actuator, relieve spring compression (steps 2 and 3, below), and carefully remove casing cap screws (key 22) (step 4,

below).

2. Thread the spring adjuster (key 12) out of the yoke (key 9) until all spring compression is relieved.

Casing-Mounted Adjustable Up Travel Stops

1. Remove the travel stop cap (key 187) and loosen the travel stop nut (key 137). Rotate the travel stop stem (key

133) counter-clockwise until the travel stop assembly is no longer compressing the spring.

2. Remove the upper diaphragm casing (key 1, figures 6, 7, or 8) as outlined in the Maintenance section.

3. Remove the cap screws (keys 141) and separate the travel stop assembly from the upper casing.

4. Remove and inspect the O-rings (keys 138 and 139); replace if necessary.

5. For sizes 30 through 60, driveoutthegroovepin(key140),andslidethepusherplate(key135)offthetravelstop

stem (key 133).

For sizes 70 and 87, remove the retaining screw (key 174) to inspect the thrust bearing (key 175).

Casing-Mounted Adjustable Down Travel Stops

1. Remove the travel stop cap (key 187). Unscrew the jam nut and stop nut (keys 189 and 54) until the travel stop

assembly is no longer compressing the spring. Remove the jam nut and stop nut.

2. Remove the upper diaphragm casing (key 1, figures 6, 7, or 8) as outlined in the Maintenance section.

3. Remove the cap screws (keys 141) and separate the travel stop assembly from the upper casing.

4. Remove and inspect the O-ring (keys 139); replace if necessary.

5. Loosen the stop nut (key 54), then unscrew the travel stop stem (key 133) out of the actuator stem. The lower

diaphragm plate can now be removed.

Assembly for Casing-Mounted Travel Stop

1. Reassemble the up or down travel stop in the reverse order of the disassembly steps, being sure to apply lubricant

as shown by the lubrication boxes (key 241) in figures 6, 7, 8, 14, 15, or 16, as appropriate.

2. Readjust the travel stop to obtain the appropriate restriction by following the adjustment procedures presented in

the introductory portion of the Casing-Mounted Adjustable Travel Stops section. Return the unit to operation.

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Parts Ordering

Each actuator has a serial number stamped on the nameplate. Always mention this number when corresponding with

your Emerson Process Management sales office regarding technical information or replacement parts. Also, reference

the complete 11-character part number of each needed part as found in the following Parts List.

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

Kits for Side-Mounted

Handwheels

Key Description Part Number

Retrofit kit includes parts to add a side-mounted handwheel.

Size 34 push down to close 30A8778X0A2

Size 34 push down to open 30A8778X0B2

Size 40 push down to close 30A8778X0C2

Size 40 push down to open 30A8778X0D2

Size 45 & 46 push down to close 40A8779X0A2

Size 40 & 60 push down to open 40A8779X0B2

Size 50 & 60 push down to close 40A8779X0C2

Size 50 & 60 push down to open 40A8779X0D2

Kits for Top-Mounted Handwheels

Key Description Part Number

Retrofit kit includes parts to add a top-mounted handwheel. Kit 1

includes the handwheel assembly only. Kit 2 includes kit 1 and a new

diaphragm case that is required to mount the handwheel assembly.

KIT 1

Size 30 28A1205X012

Sizes 34 & 40 28A1205X022

Sizes 45, 50, & 60 28A1205X032

Sizes 70 & 87 CV8010X0032

KIT 2

Size 30 28A1205X042

Sizes 34 & 40 28A1205X052

Sizes 45 & 50 28A1205X062

Sizes 46 & 60 28A1205X072

Sizes 70 & 87 CV8010X0042

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Parts List

Note

Part numbers are shown for recommended spares only. For part

numbers not shown, contact your Emerson Process Management sales

office.

Actuator Assembly

(figures 6, 7, or 8)

Key Description Part Number

1 Upper Diaphragm Casing

2* Diaphragm

Molded nitrile/nylon

Standard construction

Size 30 2E791902202

Sizes 34 & 40 2E670002202

Sizes 45 & 50 2E859502202

Sizes 46 & 60 2E859702202

Sizes 70 & 87 2N126902202

With down travel stop (style 2)

Size 30 2E800002202

Sizes 34 & 40 2E669902202

Sizes 45 & 50 2E859602202

Sizes 46 & 60 2E859802202

Sizes 70 & 87 2N130902202

Molded silicone/polyester

Standard Construction

Size 30 18B2713X082

Sizes 34 & 40 18B2713X092

Sizes 45 & 50 18B2713X102

Sizes 46 & 60 18B2713X112

Sizes 70 & 87 18B2713X122

3 Cap Screw

4 Diaphragm Plate

5 Lower Diaphragm Casing

6 Actuator Spring See following table

7 Travel Stop Cap Screw

8 Cap Screw

9Yoke

10 Actuator Stem

11 Spring Seat

12 Spring Adjuster

13 Lower Diaphragm Plate

14 Travel Indicator Disk, SST

15 Stem Nut

16 Stem Jam Nut

17 Self-Tapping Screw

18 Travel Indicator Scale

19 Nameplate, SST 12B6508X0A2

20 Drive Screw

22 Cap Screw

23 Hex Nut

24 Twin Speed Nut

25 Washer

Key Description Part Number

26 Stem Connector Assy, Steel Zn Pl

Sizes 30 & 34 18A1243X012

Size 34 with side mtd handwheel 1F659225142

Size 40 18A1668X012

Size 40 with side mtd handwheel 1F659125142

Sizes 45 & 46 18A1671X012

Sizes 45 & 46 w/ side mtd handwheel (SST,Stl) 2F1678000A2

Sizes 50 & 60 18A1672X012

Sizes 50 & 60 w/ side mtd handwheel (SST,Stl) 2F1672000A2

Size 70 18A1685X012

with side mtd handwheel 18A1678X012

with PMV positioner 18A1845X012

657-4 with 4 in. max. travel (SST,Stl) 21A8254X012

Size 87 (SST,Stl) 21A7469X012

Size 87 with side mtd handwheel 18A1825X012

28 Screw

29 Yoke Extension

30 Indicator Adaptor

31 Machine Screw

32 Washer

33 Pipe Bushing

61 Nameplate

73 Cap Screw

238 Warning label

241 Lubricant, Lithium Grease (not furnished with the actuator)

249 Caution nameplate

Top Mounted Handwheel

(figure 9 or 10)

51 Handwheel

54 Stop Nut

133 Handwheel Stem, brass

134 Washer

135 Pusher Plate

137 Casing-Mounted Travel Stop Locknut

138* O-Ring, nitrile

Sizes 30, 34, & 40 1D237506992

Sizes 45, 46, 50, & 60 1B885506992

Sizes 70 & 87 1C415706992

139* O-Ring, nitrile

Sizes 30, 34, & 40 1D267306992

Sizes 45, 46, 50, & 60 1D547106992

Sizes 70 & 87 1D269106992

140 Groove Pin

141 Cap Screw

142 Body

169 Grease Fitting

174 Retaining Screw

175 Thrust Bearing

176 Thrust Race

241 Lubricant, Lithium Grease (not furnished with actuator)

242 Sealant, Thread-Locking (not furnished

with handwheel)

244 Lubricant, Anti-Seize (not furnished with handwheel)

246 Spacer

247 Cotter Pin

*Recommended spare parts

Instruction Manual

D100306X012

657 Actuator (30-70 and 87)

November 2013

22

Figure 6. Fisher 657 Actuator Sizes 30 through 60

APPLY LUB

40A8765-C

Instruction Manual

D100306X012

657 Actuator (30-70 and 87)

November 2013

23

Figure 7. Fisher 657 Size 70 Actuator

APPLY LUB

50A8768-C

Instruction Manual

D100306X012

657 Actuator (30-70 and 87)

November 2013

24

Figure 8. Fisher 657 Size 87 Actuator

APPLY LUB

50A8767-C

Side-Mounted Handwheel

(figure 11, 12, or 13)

Key Description

34 Upper Sleeve

37 Needle Bearing

38 Needle Bearing Race

39 Bearing Retainer Flange

40 Set Screw

41 Set Screw

42 Needle Bearing

43 Needle Bearing Race

44 Worm Gear

45 Worm Shaft

46 Lower Sleeve

47 Key

48 Front Retainer

49 Back Retainer

50 Ball Bearing

51 Handwheel

52 Handgrip

53 Handgrip Bolt

54 Stop Nut

55 Ball

56 Spring

59 Handwheel Indicator

60 Cover Band Ass'y

61 Grease Fitting

132 Operating Nut

136 Bearing Retainer

Key Description

142 Handwheel Body

143 U-Bolt

144 Hex Nut, pl steel

145 Handwheel Screw

146 Lever & Pin Ass'y

147 Hex Jam Nut

148 Dowel Pin

149 Washer

150 Lockwasher

151 Bushing

152 Ball Bearing

153 Lever Pivot Pin

154 Retaining Ring

155 Lever Spacer

156 Screw

157 Lockwasher

158 Hex Nut

159 Pointer Mounting Bolt

160 Pointer

161 Screw

162 Indicator Plate

163 Cap Screw

166 U-Bolt

167 Guide Bolt

168 Set Screw

169 Grease Fitting

170 Hex Nut

177 Spring Cap

178 Machine Screw

241 Lubricant, Lithium Grease (not furnished with handwheel)

244 Lubricant, Anti-Seize (not furnished with handwheel)

Instruction Manual

D100306X012

657 Actuator (30-70 and 87)

November 2013

25

Figure 9. Top-Mounted Handwheel Assembly for Size

30 through 60 Actuators

APPLY LUB/SEALANT

NOTES:

THE TOP MOUNTED HANDWHEEL IS NOT DESIGNED FOR USE UN

DER HEAVY LOAD OR FOR FREQUENT USE.

28A1205-D

Figure 10. Top-Mounted Handwheel Assembly for

Sizes 70 through 87 Actuators

APPLY LUB/SEALANT

NOTES:

THE TOP MOUNTED HANDWHEEL IS NOT DESIGNED FOR USE UNDER

HEAVY LOAD OR FOR FREQUENT USE.

CV8010-G

Instruction Manual

D100306X012

657 Actuator (30-70 and 87)

November 2013

26

Figure 11. Side-Mounted Handwheel Assembly for Size 34 and 40 Actuators

APPLY LUBRICANT

30A8778-D

Instruction Manual

D100306X012

657 Actuator (30-70 and 87)

November 2013

27

Figure 12. Side-Mounted Handwheel Assembly for Size 45 and 60 Actuators

APPLY LUBRICANT

40A8779-D

Instruction Manual

D100306X012

657 Actuator (30-70 and 87)

November 2013

28

Figure 13. Fisher 657 Size 70 and 87 Actuators with Side-Mounted Handwheel

APPLY LUB

50A8769-D

SECTION A-A

Instruction Manual

D100306X012

657 Actuator (30-70 and 87)

November 2013

29

Figure 14. Casing-MountedAdjustableUpTravel

Stop for Sizes 30 through 60 Actuators (Style 1)

28A1206-C

APPLY LUBRICANT

Casing-Mounted Adjustable Up

Travel Stops (figures 14 or 15)

Key Description Part Number

133 Travel Stop Stem

135 Pusher Plate

137 Travel Stop Nut

138* O-Ring, nitrile

Sizes 30, 34, & 40 1D237506992

Sizes 45, 46, 50, & 60 1B885506992

Sizes 70 & 87 1C415706992

139* O-Ring, nitrile

Sizes 30, 34, & 40 1D267306992

Sizes 45, 46, 50, & 60 1D547106992

Sizes 70 & 87 1D269106992

Figure 15. Casing-Mounted Adjustable Up Travel

Stop for Sizes 70 and 87 Actuators (Style 1)

APPLY LUB/SEALANT

CV8057-E

Key Description Part Number

140 Groove Pin

141 Cap Screw

142 Body

169 Grease Fitting

174 Retaining Screw

175 Thrust Bearing

176 Thrust Bearing Race

187 Travel Stop Cap

241 Lubricant, Lithium Grease (not furnished with travel stop)

244 Lubricant, Anti-Seize (not furnished with handwheel)

*Recommended spare parts

Instruction Manual

D100306X012

657 Actuator (30-70 and 87)

November 2013

30

Figure 16. Casing-Mounted Adjustable Down Travel Stop for Size 30 and 40 Actuators (Style 2)

APPLY LUB

BV8054-E

Casing-Mounted Adjustable

Down Travel Stop (figure 16)

Key Description Part Number

54 Stop Nut

133 Travel Stop Stem

134 Washer

139* O-Ring, nitrile

Sizes 30, 34, & 40 1D267306992

Sizes 45, 46, 50, & 60 1D547106992

Sizes 70 & 87 1D269106992

141 Cap Screw

142 Body

187 Travel Stop Cap

189 Jam Nut

241 Lubricant, Lithium Grease (not furnished with travel stop)

*Recommended spare parts

Instruction Manual

D100306X012

657 Actuator (30-70 and 87)

November 2013

31

Key 6 Actuator Spring

ACTUATOR SIZE

DIAPHRAGM

PRESSURE RANGE TRAVEL, mm (INCHES)

Bar Psig 11 (0.4375) 16 (0.625) 19 (0.75) 29 (1.125) 38 (1.5) 51 (2)

30

0.2-1.0 3-15

1E795327082

Light Blue

(1260)

1E795520792

Brown (885)

1E792327092

Dark Gray (735)

---

---

---

---

---

---

0.4-2.0 6-30 1E795627082

White (2520)

1E795427082

Light Gray

(1770)

1E79247082

Light Green

(1470)

---

---

---

---

---

---

34(1) &40

0.2-1.0 3-15

1E805127082

Aluminum

(1840)

1E804927082

Yellow (1327)

1E805827082

White (1100)

1E805327092

Dark Gray (736)

1E805627092

Dark Green

(550)

---

---

0.4-2.0 6-30 1E805027082

Purple (3780)

1E804827082

Light Blue

(2650)

1E805227082

Orange (2210)

1E805527082

Dark Blue

(1470)

1E805827082

White (1100)

---

---

45 & 50

0.2-1.0 3-15 ---

---

1E826727082

Tan (2080)

1E826227082

Light Green

(1670)

1E826127082

Dark Gray

(1120)

1E826627082

Orange (840)

1E826927082

Dark Green

(630)

0.4-2.0 6-30 ---

---

1E825627082

Purple (4160)

1E825527082

Aluminum &

Red (3320)

1E826427082

Light Gray

(2240)

1E826227082

Light Green

(1670)

1E826527082

Red (1260)

46 & 60

0.2-1.0 3-15 ---

---

1E825827082

Yellow (2770)

1E825727082

Brown (2500)

1E826227082

Light Green

(1670)

1E826527082

Red (1260)

1E827027082

Aluminum &

Dark Blue (935)

0.4-2.0 6-30 ---

---

---

---

1E826027082

Bronze (5000)

1E825527082

Aluminum &

Red (3320)

1E825720782

Brown (2500)

1E826327082

Aluminum

&Dark Green

(1870)

19 (0.75) 29 (1.125) 38 (1.5) 51 (2) 76 (3) 102 (4)

70 & 87

0.2-1.0 3-15 1N127927082

Red (3360)

1N719327082

White (2240)

1N128727082

Yellow (1680)

1N128427082

Light Green

(1260)

1N128627082

Dark Gray (840)

---

---

0.4-2.0 6-30 ---

---

1N128127082

Brown (4475)

1N127927082

Red (3360)

1N128527082

Light Blue

(2520)

1N128727082

Yellow (1680)

1R676027082(2)

Black (860)

1. 29 mm (1.125 inch) and 38 mm (1.5 inch) travels available in size 40 only.

2. Diaphragm pressure range for this spring & travel combination is 0.2-2.0 bar (3-30 psig).

Instruction Manual

D100306X012

657 Actuator (30-70 and 87)

November 2013

32

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

The contents of this publication are presented for informational purposes only, and while every effort has been made to ensure their accuracy, they arenot

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

governed by our terms and conditions, which are available upon request. We reserve the right to modify or improve the designs or specifications of such

products at any time without notice.

E1983, 2013 Fisher Controls International LLC. All rights reserved.

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