Fisher 1032 User manual

D500196X012
Typ e 1 03 2 R ack-and-Pinio n R otar y A ctuators
Contents
Introduction 1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Scope of Manual 1. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Description 2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Installation 2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Actuator Mounting 3. . . . . . . . . . . . . . . . . . . . . . . . . . .
Travel Stop Adjustment 3. . . . . . . . . . . . . . . . . . . . . . .
Loading Connection 3. . . . . . . . . . . . . . . . . . . . . . . . . .
Startup 4 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Principle of Operation 4. . . . . . . . . . . . . . . . . . .
Double-Acting Actuators 4. . . . . . . . . . . . . . . . . . . . . .
Spring-Return Actuators 4. . . . . . . . . . . . . . . . . . . . . .
Maintenance 5 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Disassembly 5 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Assembly 7 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Installing the Pinion 7. . . . . . . . . . . . . . . . . . . . . . . . .
Installing the Pistons 8. . . . . . . . . . . . . . . . . . . . . . . .
Installing the Travel Stops 8. . . . . . . . . . . . . . . . . . .
Installing the End Caps on Double-
Acting Actuators 8. . . . . . . . . . . . . . . . . . . . . . . . . . .
Installing the End Caps on Spring-
Return Actuators 9. . . . . . . . . . . . . . . . . . . . . . . . . .
Changing Springs 9. . . . . . . . . . . . . . . . . . . . . . . .
Changing Actuator Rotation 10. . . . . . . . . . .
Double-Acting Actuators 10. . . . . . . . . . . . . . . . . . . .
Spring-Return Actuators 11. . . . . . . . . . . . . . . . . . . .
Parts Ordering 11. . . . . . . . . . . . . . . . . . . . . . . . . . .
Parts Kits 12. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Parts List 13. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Figure 1. Type 1032 Actuator with
Model A31A Valve and Solenoid Valve
W5877-1 / IL
Introduction
Scope of Manual
This instruction manual includes installation, mainte-
nance, and parts ordering information for Type 1032
rack-and-pinion rotary actuators. These actuators are
available in both double-acting and spring-return con-
figurations. Instructions for the valve and for any ac-
cessories used with these actuators will be found in
separate manuals.
Only personnel qualified through training or experience
should install, operate, and maintain a Type 1032 ac-
tuator. If there are any questions about these instruc-
tions, contact your Fisher sales office or sales repre-
sentative before proceeding.
Table1. Specifications
Instruction Manual
Form 5311
February 1993 Type 1032

Type 1032
2
Actuator Model Numbers
45, 70, 130, 185, 280, 425A(1), 
680A(1), 1125, 1370, 2585, and 4580 all
in double-acting and spring-return configurations.
Add a ‘‘D’’ to the model number to indicate a
double-acting actuator, and add an ‘‘S’’ to the model
number to indicate a spring-return actuator.
Operating Pressure
Maximum Allowable: 120 psig (8.6 bar) for all ac-
tuators except Model 4580D which has a maximum
allowable operating pressure of 100 psig (6.9 bar).
Minimum Recommended: Depends on torque re-
quired.
Material Temperature Capabilities
Standard with Nitrile O-Rings:–20 to 200F (–29
to 93C)
Optional with Fluoroelastomer O-Rings: 0 to
350F (–18 to 177C)
Maximum Valve Shaft Rotation
90 degrees with 3 degrees overtravel on each end.
Actuator pinion rotation can be limited with indepen-
dent, externally adjustable travel stops. Travel stops
are of sufficient size to absorb maximum torque
output.
Construction Materials
Body and End Caps: Hard anodized aluminum
with ceramic-like coating and two-part epoxy coat-
ing
Pistons: Aluminum
Pinion: Steel
Springs: Spring steel
Retractor Spring seats:
Models 280 and 1125: Aluminum
All Other Models: Steel
Bearings: Molybdenite-impregnated polymer
O-Rings:
Standard: Nitrile
High Temperature: Fluoroelastomer
Mounting Bracketry: Carbon steel
Pressure Port Connections
1/4 inch NPT female
Fail Action for Spring-Return Actuators
Depending on the position of the pistons within the
actuator, the actuator can be set for ‘‘fail open’’ or
‘‘fail closed’’ valve action (clockwise or counter-
clockwise rotation of actuator pinion, see figures 2
through 5)
Stroking Time
Dependent on actuator size, rotation, and positioner
if used. If stroking time is critical, consult your Fish-
er sales office or sales representative
Approximate Weights:
See table 2
1. The old model 425 and 680 actuators have different size square openings in the end of the pinion than the new model 425A and 680A actuators. The old dimension is 1.064 inches
(27 mm), and the new dimension is 0.866 inches (22 mm). It is shown as dimension “U” in Data Sheet BD841.
Description
Fisher Type 1032 rack-and-pinion rotary actuators
(see figure 1) are rugged, compact, and versatile units
that provide a reliable method of opening and closing
rotary valves.
Double-acting actuators require pressure to rotate the
valve in either direction. Spring-return actuators re-
quire pressure to rotate the valve in one direction only
and can be easily installed to open or close the valve
on loss of air pressure.
Installation
When an actuator and valve are shipped together, the
actuator is normally mounted on the valve. Follow the
valve instructions when installing the valve in the pipe-
line, and then perform the procedures presented in the
Loading Connections portion of this Installation sec-
tion. If the actuator is shipped separately or if it is nec-
essary to mount the actuator on the valve, perform the
procedures presented in the Actuator Mounting portion
of this section.
Table2. Approximate Weights
ACTUATOR
ACTUATOR MODEL NUMBERS
ACTUATOR
CONFIGURATION
45 70 130 185 280 425A(1) 680A(1) 1125 1370 2585 4580
CONFIGURATION
Lbs
Double acting 4 5 8 10 14 21 29 50 61 87 145
Spring return 6 8 14 18 20 31 53 76 99 165 286
Kg
Double acting 1.8 2.3 3.6 4.5 6.4 9.5 13 23 28 39 66
Spring return 2.7 3.6 6.4 8.2 9.1 14 24 34 45 75 130
1. The old model 425 and 680 Actuators have different size square openings in the end of the pinion than the new model 425A and 680A actuators. The old dimension is 1.064 inches
(27 mm), and the new dimension is 0.866 inches (22 mm). It is shown as dimension “U” in Data Sheet BD841.

Type 1032
3
WARNING
To avoid personal injury or property
damage caused by bursting of pressure-
retaining parts, be certain the cylinder
pressure does not exceed the pressure
limits listed in table 1. Use pressure-lim-
iting or pressure-relieving devices to
prevent the cylinder pressure from ex-
ceeding these limits.
If hoisting the valve and actuator assem-
bly or the actuator by itself, take precau-
tions to prevent personnel from being
injured in case the hoist or sling slips
unexpectedly. Refer to table 2 for actua-
tor weights. Carefully position the sling
to prevent damage to tubing or any ac-
cessories.
Actuator Mounting
Use the following steps to connect a valve and actua-
tor that have been ordered separately.
1. Place the actuator and the valve in the required
orientation.
2. Check the valve and actuator mounting surfaces,
shaft coupler and valve shaft for possible discrepan-
cies.
3. Position the shaft coupler (if furnished loose) on the
valve shaft. Then, insert the square end of the coupler
into the square hole of the actuator drive. On certain
valve/actuator/coupler combinations, it is necessary to
use a shim or adaptor (furnished) in the square end of
the coupler in the actuator drive. The actuator is usual-
ly mounted parallel with the run of pipe. However, the
actuator can be mounted in any position.
4. Tighten all bolts and nuts evenly, taking care to
center the actuator on the valve shaft.
5. Refer to table 3 for valve mounting bracket to ac-
tuator bolt torques.
Table 3. V alve Mounting Bracket
to Actuator Bolt Torque
ACTUATOR
MODEL
ACTUATOR
MOUNTING
BOLT TORQUE
MODEL
NUMBER(1) MOUNTING HOLE SIZE Lbfft Nm
45 1/4-20 UNC 4 5
70
130
185
280
5/16-18 UNC 811
425A
680A
3/8-16 UNC 15 20
1125
1370
1/2-13 UNC 31 42
2585
4580
3/4-10 UNC 74 100
1. Applies to both double-acting and spring-return models.
Because there are many valve and actuator combina-
tions, it is not practical to include detailed instructions
on each combination. Mountings are designed as sim-
ple as possible to keep installations easy to perform.
Travel Stop Adjustment
Type 1032 actuators are shipped from the factory with
the travel stops adjusted for approximately 90 degrees
rotation. Generally, it is necessary to make slight stop
adjustments once the actuator is installed on the
valve.
Refer to figures 10 and 11 for location of the actuator
travel stops.
Loosen the actuator travel stop lock nuts (key 10), and
adjust the travel stop adjustment bolts (key 9) to en-
sure clearance of 0.01-0.040 inch (0.3-1.0 mm) be-
tween the valve internal stops and the disk.
Loading Connection
1. Various accessories such as solenoid valves, limit
switches, and positioners may be used with these ac-
tuators. If an accessory is used, be sure that the ac-
cessory is properly connected to the actuator. If an
accessory was ordered as part of the valve and actua-
tor assembly, the pressure connection from the acces-
sory to the actuator will normally be made at the
factory.
2. Connect the supply pressure to the accessory be-
ing used or to the appropriate pressure port in the ac-
tuator. Markings are cast into the actuator adjacent to
the pressure connections as to whether supply pres-
sure forces the pistons together or apart.
3. When the valve and actuator assembly is com-
pletely installed, check for correct action (air-to-open
or air-to-close) on spring-return actuators. For suc-
cessful operation, the actuator and valve shaft must
move smoothly in response to supply pressure
changes in the pressure cylinder.

Type 1032
4
Startup
When the valve and actuator assembly are first put
into service, slight leakage past the piston O-rings
might be detected. This is due to the O-rings having
been held in one position tending to cause a ‘‘set’’ in
the O-ring. In such cases, operate the actuator
through several cycles, thereby energizing the O-rings
and resulting in a ‘‘re-seating’’.
The stroking speed will be determined by a number of
factors, including the distance from the pressure
source, supply line size, supply line pressure, acces-
sories, torque requirement of the valve, and size of the
actuator. Due to the interaction of these variables, it is
difficult to specify a normal stroking speed.
Principle of Operation
Double-Acting Actuators
For counterclockwise output rotation, refer to figure 2.
With actuator pistons installed as shown in figure 2,
supply pressure is applied to port A which forces the
pistons apart. The linear travel of the pistons is con-
verted to a counterclockwise rotation of the pinion and
valve shaft by the rack-to-pinion connection. The vol-
ume on top of each piston is exhausted through
port B.
For clockwise output rotation, refer to figure 3. With
actuator pistons installed as shown in figure 3, supply
pressure is applied to port B which forces the pistons
together. The linear travel of the pistons is converted
to a clockwise rotation of the pinion and valve shaft by
the rack-to-pinion connection. The volume between
the pistons is exhausted through port A.
Spring-Return Actuators
For counterclockwise output rotation, refer to figure 4.
With actuator pistons installed as shown in figure 4
(fail-closed action for valves with clockwise to close
disk rotation), supply pressure is applied to port A.
This pressure forces the pistons apart, compresses
the springs, and opens the valve. The linear travel of
the pistons is converted to a counterclockwise rotation
of the pinion and valve shaft by the rack-to-pinion con-
nection. The volume on top of each piston is ex-
hausted through port B. Upon loss or removal of sup-
ply pressure, the compressed springs move the
pistons together and close the valve.
Figure2. Double-Acting Actuator with
Counterclockwise Output Rotation
A5818 / IL
Figure3. Double-Acting Actuator with
Clockwise Output Rotation
A5819 / IL
Figure4. Spring-Return Actuator with
Counterclockwise Output Rotation
A5820 / IL
Figure5. Spring-Return Actuator with
Clockwise Output Rotation
A5821 / IL

Type 1032
5
For clockwise output rotation, refer to figure 5. With
actuator pistons installed as shown in figure 5 (fail-
open action for valves with clockwise to close disk
rotation), the supply pressure is applied to port A. This
pressure forces the pistons apart, compresses the
springs, and closes the valve. The linear travel of the
pistons is converted to a clockwise rotation of the pin-
ion and valve shaft by the rack-to-pinion connection.
The volume on top of each piston is exhausted
through port B. Upon loss or removal of supply pres-
sure, the compressed springs move the pistons to-
gether and open the valve.
Maintenance
Actuator parts are subject to normal wear and must be
inspected and replaced as necessary. The frequency
of inspection and replacement depends upon the se-
verity of service conditions. Instructions are given in
subsequent sections for disassembly and assembly of
the actuator.
Because of the care Fisher takes in meeting all
manufacturing requirements (heat treating, dimension-
al tolerances, etc.), use only replacement parts
manufactured by Fisher.
WARNING
Avoid personal injury from sudden re-
lease of process pressure. Before per-
forming any maintenance operations:
Disconnect any operating lines pro-
viding air pressure, or a control signal
to the actuator. Be sure the actuator
cannot suddenly open or close the
valve.
Use 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.
Vent the power actuator loading
pressure and relieve any actuator spring
precompression.
Figure 6. Spring-Return Actuator End Cap
with Retractor Rod Installed
A5833-1 / IL
Use lock-out procedures to be sure
that the above measures stay in effect
while you work on the equipment.
Disassembly
The following procedure describes how the actuator
can be completely disassembled. When inspection or
repairs are required, perform only those steps neces-
sary to accomplish the task. Key numbers referenced
in the following steps are shown in figure 10 for
double-acting actuators and in figure 11 for spring-re-
turn actuators unless otherwise indicated. Disassem-
bly procedures are identical for both double-acting and
spring-return actuators except for removal of the end
caps (key 4).
1. Isolate the control valve from the line pressure, re-
lease pressure from both sides of the valve body, and
drain the process media from both sides of the valve.
If using a power actuator, also shut-off all pressure
lines to the power actuator, release all pressure from
the actuator. Use lock-out procedures to be sure that
the above measures stay in effect while you work on
the equipment. Remove the actuator from the valve.
2. For double-acting actuators, remove the end
caps as described below. The actuator has two end
caps. Perform the same steps on both end caps.
a. Loosen the nut on the safety key (key 5) and
unscrew the threaded portion.
b. Remove the flexible stainless steel safety key
(key 5) by gently pulling on the nut and at the same
time turning the end cap (key 4) towards the safety
key. For larger models, use a wrench on the end
cap boss to assist in turning the end cap.
MODEL NUMBER
45 70 130 185 280 425A 680A 1125 1370 2585 4580
A7.09/180 8.07/205 6.30/160 9.65/245 5.71/145 11.22/285 13.98/355 9.25/235 16.34/415 19.29/490 20.87/530
B2.99/76 3.23/82 3.62/92 3.94/100 2.95/75 5.00/125 5.87/149 4.92/125 6.89/175 8.23/209 9.92/252
C0.24/6 0.55/14 0.55/14 0.51/13 0.55/14 0.51/13 0.51/13 0.91/23 0.59/15 0.79/20 0.79/20
D0.20/5 0.31/8 0.31/8 0.31/8 0.39/10 0.31/8 0.47/12 0.47/12 0.47/12 0.47/12 0.79/20
E(1) M5 M8 M8 M8 M10 M8 M12 M12 M12 M12 M20
1. Metric thread designation.

Type 1032
6
Figure7. Retractor Rod Dimensions
A6128 / IL
3. For spring-return actuators, remove the end
caps as described below. The actuator has two end
caps. Perform the same steps on both end caps. Re-
fer to figure 6 for part names referenced in removing
the end caps on spring-return actuators unless other-
wise indicated.
a. Remove the cap screw and sealing washer
(keys 21 and 22, figure 11) from the end cap.
WARNING
Avoid personal injury or property dam-
age from sudden release of precom-
pressed spring force. The retractor rods
and nuts are manufactured to required
specifications in order to provide the
correct thread engagement in the retrac-
tor spring seats and to have the proper
tensile strength when applying spring
compression to the springs for end cap
removal.
The threads on the retractor rods and
nuts and the threads in the retractor
spring seats are metric threads. Using
any retractor rods, washers, and nuts
except those supplied in the appropriate
retractor rod kit specifically for the ac-
tuator model number could result in per-
sonal injury or property damage.
b. Use the retractor rod, washer, and nuts from the
retractor rod kit. (Note: Retractor rod kits are avail-
able. Please refer to the Parts Kits section at the
end of this manual. If necessary, make a retractor
rod by using the dimensions shown in figure 7.)
Make certain that the washer and nuts are installed
on the retractor rod as shown in figure 7. Insert the
retractor rod through the hole in the end cap.
c. Thread the retractor rod into the retractor spring
seat until travel is stopped. This indicates that the
retractor rod has contacted the piston.
d. Thread the nut on the retractor rod, located
closest to the end cap, down the rod until the wash-
er contacts the end cap. Using a wrench, screw
this nut clockwise two complete turns in order to
draw the retractor spring seat away from the piston
head and release the spring compression on the
piston.
WARNING
Avoid personal injury or property dam-
age from sudden release of precom-
pressed spring force. Make certain that
spring compression is held by the re-
tractor rod and the retractor spring seat
(key 8) and is removed from the top of
the piston (key 3) before removing the
safety key (key 5).
e. Rotate the end cap to make certain the springs
are retracted. If the end cap cannot be rotated free-

Type 1032
7
ly, turn the nut, located on the retractor rod and
against the end cap, clockwise until the end cap
turns freely. Perform the same step on both end
caps.
f. Loosen the nut on the safety key (key 5, figure
11), and unscrew the threaded portion.
g. Remove the flexible stainless steel key (key 5,
figure 11) by gently pulling on the nut and at the
same time turning the end cap toward the safety
key. For larger models, use a wrench on the end
cap boss to assist in turning the end cap.
4. When both flexible stainless steel keys have been
removed, place a wrench on the top of the pinion, and
rotate the pinion (key 2) to push the end caps (key 4)
partially out of the body (key 1). Remove the end caps
by pulling them straight out from the body.
5. Inspect the end cap O-rings (key 13). If it is neces-
sary to remove them, use a flat-bladed screwdriver or
similar tool to roll the O-rings out of their groove in the
end caps.
6. Place a wrench on top of the pinion, and rotate the
pinion (key 2) so that rack teeth on the pistons (key 3)
no longer engage the pinion. Pull the pistons straight
out from body (key 1).
7. Inspect the piston O-rings (key 12). If it is neces-
sary to remove them, use a flat-bladed screwdriver to
roll the O-rings out of their groove in the piston.
8. Inspect the piston bearings (key 16). If it is neces-
sary to remove them, use a flat-bladed screwdriver
under one end of the bearing to pry the bearings out of
their holding grooves in the piston.
9. Using a snap ring tool, remove the snap ring (key
23) from the pinion (key 2).
10. Remove the thrust washer (key 20) and thrust
bearing (key 19) from the top of the pinion.
11. Back out and remove the travel stop adjustment
bolts (key 9). The travel stop lock nuts and sealing
washers (keys 10 and 11) will come off with the travel
stop adjustment bolts. Push the pinion and associated
parts out the bottom of the body (key 1).
12. Inspect the O-rings (keys 17 and 18), thrust bear-
ings (key 19), and upper and lower pinion bearings
(keys 14 and 15) and replace as necessary.
a. If the upper and lower pinion bearings (keys 14
and 15) must be replaced, either raise the upper
thrust bearing (key 19) and the thrust washer (key
20) against the O-ring (key 18) to provide sufficient
space to remove the upper pinion bearing or re-
move the O-ring, thrust bearing, and thrust washer
from the pinion.
Figure 8. Pinion Orientation and Piston Installation
for Counterclockwise Output Rotation
A5834 / IL
b. Remove the upper and lower pinion bearings
(keys 14 and 15) by placing a small-bladed screw-
driver or other similar tool under the edge of one
end of each bearing and remove it.
Assembly
This procedure assumes that the actuator was com-
pletely disassembled except for the end caps in the
spring-return models. It is assumed that the retractor
rods were not removed from the end caps when the
end caps were removed from the actuator. If the ac-
tuator was not completely disassembled, start the as-
sembly instructions at the appropriate step. Assembly
procedures are identical for both double-acting and
spring-return actuators except for assembly of the end
caps.
Installing the Pinion
Key numbers are shown in figures 10 and figure 11
unless otherwise indicated.
1. Apply a light coat of lithium-based grease to upper
and lower pinion bearing slots and to the pinion O-ring
grooves.
2. New upper and lower pinion bearings (keys 14 and
15) are received flat. Using care to avoid breaking the
new pinion bearings, form them around the pinion, and
install them into their respective slots in the pinion.
3. Install the thrust washer (key 20) and the thrust
bearing (key 19) over the upper pinion bearing (key
14).
4. Coat O-rings (keys 17 and 18) with a lithium-based
grease, and then install them in their respective
grooves in the pinion.
5. Apply a light coat of lithium-based grease to the
pinion (key 2) and to the pinion bores of the body (key
1). Make certain that the newly installed upper and
lower pinion bearings are coated.

Type 1032
8
6. Carefully install the pinion (key 2) into the body
(key 1), while making certain that the upper and lower
pinion bearings do not catch on the bores in the body
and become dislodged.
7. Place the thrust bearing (key 19) and the thrust
washer (key 20) over the pinion. Using a snap ring
tool, install the snap ring (key 23).
Installing the Pistons
Key numbers are shown in figures 10 and 11 unless
otherwise indicated.
1. Liberally apply a lithium-based grease to the pis-
tons (key 3) and to the actuator body bore.
2. Apply a light coat of lithium-based grease to the
piston O-rings (key 12), and then install them in their
grooves in the pistons.
3. Insert the piston bearings (key 16) into the holding
grooves of the piston with the piston bearing tag facing
away from piston head. Push the piston bearings in
until the bearing tag snaps into its slot in the piston.
4. Insert one piston (key 3), with rack teeth toward the
pinion (key 2), into each end of the body bore. Make
certain the alignment groove in the end of each piston
is parallel to the long axis of the pinion.
5. Rotate the pinion (key 2) so its travel stop flats are
properly oriented for correct actuator output rotation
and for correct valve rotation (see figure 8). The orien-
tation shown in figure 8 is correct for counterclockwise
output rotation of the actuator and clockwise to close
valves.
6. Push both pistons together until their racks are in
contact with the pinion (key 2). Rotate the pinion
clockwise to draw the pistons together.
Note
When the pistons are together and the
rack teeth are properly engaged by the
teeth on the pinion, the two travel stop
flats will each be at a right angle to an
axis of the body.
Installing the Travel Stops
Key numbers referenced in the following steps are
shown in figure 10 for double-acting actuators and in
figure 11 for spring-return actuators unless otherwise
indicated.
1. Thread the travel stop lock nuts (key 10) on the
travel stop bolts (key 9) if they were removed. Install
Figure9. Travel Stop Installation for
Counterclockwise Output Rotation
A5835/ IL
the sealing washers (key 11) against the travel stop
lock nuts.
2. With the pistons together, screw in a travel stop
bolt (key 9) for the closing travel stop (see figure 9)
until the bolt just touches the travel stop flat on the
pinion. It may be necessary to move the travel stop
lock nut on the bolt to allow the bolt to touch the pin-
ion.
3. Rotate the pinion 90to drive the pistons apart.
Make certain the rotation is only 90. Screw in a travel
stop bolt (key 9) for the opening travel stop (see figure
9) until the bolt just touches the travel stop flat on the
pinion. It may be necessary to move the travel stop
lock nut on the bolt to allow the bolt to touch the pin-
ion.
4. Make the final travel stop adjustments in accor-
dance with the Travel Stop Adjustments procedure in
the Installation section after the end caps are installed
and the actuator is mounted on the valve.
Installing the End Caps on Double-Acting
Actuators
Assemble and install the end caps as described be-
low. The actuator has two end caps. Perform these
same steps on both end caps. Key number locations
are shown in figure 10.
1. Apply a lithium-based grease to the end of the
body bore and to the surface of the end cap (key 4)
that fits into the body bore. Make certain the grease
gets into the grooves of the end cap.
2. Apply a light coat of lithium-based grease to the
end cap O-ring (key 13), and then install it in its
groove of the end cap (key 4). The O-ring groove is
the groove adjacent to the flange on the end cap.
3. Insert the end cap (key 4) into the body bore.

Type 1032
9
CAUTION
To avoid damage to the safety key (key
5), do not stretch or kink it.
4. Make certain O-ring (key 26) is installed and lo-
cated next to the nut on the safety key (key 5). Hold
the safety key to prevent kinking it, and insert the end
of the safety key into the actuator and into the groove
of the end cap (key 4). Gently push the safety key
around its groove in the end cap. Turning the end cap
away from the safety key while keeping the end cap
against the body will assist in installing the safety key.
For larger models, use a wrench on the end cap boss
to assist in turning the end cap.
5. Screw the threads of the safety key into the actua-
tor and tighten the nut.
Installing the End Caps on Spring-Return
Actuators
Assemble and install the end caps as described be-
low. The actuator has two end caps. Perform these
same steps on both end caps. Key numbers refer-
enced in the following steps are shown in figure 11.
1. Apply a lithium-based grease to the end of the
body bore and to the surface of the end cap (key 4)
that fits into the body bore. Make certain the grease
gets into the grooves of the end cap.
2. Apply a light coat of lithium-based grease to the
end cap O-ring (key 13), and then install it in its
groove of the end cap (key 4). The O-ring groove is
the groove adjacent to the flange on the end cap.
3. Refer to figure 6. If the nut adjacent to to end cap
was not changed or adjusted since the end cap was
removed, there should still be sufficient spring com-
pression on the spring(s) to assemble the end cap to
the actuator body. If the spring compression is not suf-
ficient to allow end cap installation, tighten the nut ad-
jacent the end cap to apply more spring compression
until the end cap can be assembled to the actuator
body.
4. Insert the end cap (key 4) into the body bore while
making certain that the retractor spring seat fits into
the recess in the top of the piston (see figure 6).
CAUTION
To avoid damage to the safety key (key
5), do not stretch or kink it
5. Make certain O-ring (key 26) is installed and lo-
cated next to the nut on the safety key (key 5). Hold
the safety key to prevent kinking it, and insert the end
of the safety key into the actuator and into the groove
of the end cap (key 4). Gently push the safety key
around its groove in the end cap. Turning the end cap
away from the safety key while keeping the end cap
against the body will assist in installing the safety key.
For larger models, use a wrench on the end cap boss
to assist in turning the end cap.
6. Screw the threaded end of the safety key into the
actuator and tighten the nut.
7. When both end caps have been installed on the
actuator, refer to figure 6, and remove the retractor
rods as follows:
a. Place a wrench on the locking nuts located on
the end of the retractor rod. This will keep the re-
tractor rod from turning when performing step b.
b. Loosen the nut adjacent to the end cap in order
to release the spring compression. Turn this nut
away from the end cap to make certain spring com-
pression is released by the retractor rod.
c. Turn the locking nuts on the end of the retractor
rod and unscrew the retractor rod from the retractor
spring seat. Remove the retractor rod from the end
cap.
d. Install the sealing washer (key 22) and the cap
screw (key 21) in the end cap (key 4). Tighten the
cap screw.
Changing Springs
Spring-return actuators may be changed from one
spring pressure rating to another. The spring pressure
is the combined pressure of all the springs used in the
actuator end caps.
For example: For an 80 psi spring combination, there
is a 25 psi spring and a 15 psi spring in each end cap
of the actuator. To change from an 80 psi spring com-
bination to a 65 psi, remove one 15 psi spring from
one end cap. Then, re-assemble the end cap, replace
it on the actuator and the combined spring pressure
setting is 65 psi. Perform the procedures listed below
to remove the springs.
Refer to figure 6 for an illustration of an end cap as-
sembly with the retractor rod installed. Key numbers
referenced in the following steps are shown in figure
11. Observe the warning at the start of the Mainte-
nance section.
1. Isolate the control valve from the line pressure, re-
lease pressure from both sides of the valve body, and
drain the process media from both sides of the valve.
If using a power actuator, also shut-off all pressure

Type 1032
10
lines to the power actuator, release all pressure from
the actuator. Use lock-out procedures to be sure that
the above measures stay in effect while you work on
the equipment. Remove the actuator from the valve.
2. Remove one of the end caps as described in the
spring-return actuator Disassembly procedure in the
Maintenance section. Observe the warning in the
spring-return actuator Disassembly procedure.
3. When the flexible stainless steel key has been re-
moved, place a wrench on the top of the pinion, and
rotate the pinion (key 2) to push the end cap (key 4)
partially out of the body (key 1). Remove the end cap
by pulling it straight out from the body.
4. Refer to figure 6 and disconnect the retractor rod
from the retractor spring seat as follows:
a. Place a wrench on the locking nuts located on
the end of the retractor rod. This will keep the re-
tractor rod from turning when performing step b.
b. Loosen the nut adjacent to the end cap in order
to release the spring compression. Turn this nut
away from the end cap to make certain spring com-
pression is released by the retractor rod.
c. Turn the locking nuts on the end of the retractor
rod and unscrew the retractor rod from the retractor
spring seat (key 8).
5. Remove the retractor spring seat (key 8), and then
remove the smaller diameter spring (15 psi spring rat-
ing) (key 7).
6. Install the retractor spring seat (key 8), and thread
the retractor rod into the spring seat until the end of
the retractor rod is flush with back of the spring seat.
Prevent rotation of the retractor rod, and tighten the
nut adjacent the end cap to apply spring compression
until the end cap can be assembled to the actuator
body.
7. Insert the end cap (key 4) into the body bore while
making certain that the retractor spring seat fits into
the recess in the top of the piston (see figure 6).
CAUTION
To avoid damage to the safety key (key
5), do not stretch or kink it.
8. Make certain O-ring (key 26) is installed and lo-
cated next to the nut on the safety key (key 5). Hold
the safety key to prevent kinking it, and insert the end
of the safety key into the actuator and into the groove
of the end cap (key 4). Gently push the safety key
around its groove in the end cap. Turning the end cap
away from the safety key while keeping the end cap
against the body will assist in installing the safety key.
For larger models, use a wrench on the end cap boss
to assist in turning the end cap.
9. Screw the threaded end of the safety key into the
actuator and tighten the nut.
10. When the end cap has been installed on the ac-
tuator, refer to figure 6, and remove the retractor rods
as follows:
a. Place a wrench on the locking nuts located on
the end of the retractor rod. This will keep the re-
tractor rod from turning when performing step b.
b. Loosen the nut adjacent to the end cap in order
to release the spring compression. Turn this nut
away from the end cap to make certain spring com-
pression is released by the retractor rod.
c. Turn the locking nuts on the end of the retractor
rod and unscrew the retractor rod from the retractor
spring seat. Remove the retractor rod from the end
cap.
11. Install the sealing washer (key 22) and the cap
screw (key 21) in the end cap (key 4). Tighten the cap
screw.
Changing Actuator Rotation
The actuator output rotation may be changed from
counterclockwise to clockwise or vice versa.
Double-Acting Actuators
The actuator output rotation is changed from counter-
clockwise to clockwise or vise versa by changing the
port through which supply pressure is applied. Refer to
figures 2 and 3 and to the Principle of Operation sec-
tion for double-acting actuators. Markings are cast into
the actuator adjacent to the pressure connections as
to whether supply pressure forces the pistons together
or apart.

Type 1032
11
Spring-Return Actuators
The actuator output rotation is changed from counter-
clockwise to clockwise or vise versa by changing the
orientation of the rack and piston assemblies with re-
spect to the pinion. Refer to figures 4 and 5 and to the
Principle of Operation section for spring-return actua-
tors.
Perform the procedures listed below to change the
actuator output rotation. Key numbers referenced in
the following steps are shown in figure 11. Observe
the warning at the start of the Maintenance section.
1. Isolate the control valve from the line pressure, re-
lease pressure from both sides of the valve body, and
drain the process media from both sides of the valve.
If using a power actuator, also shut-off all pressure
lines to the power actuator, release all pressure from
the actuator. Use lock-out procedures to be sure that
the above measures stay in effect while you work on
the equipment. Remove the actuator from the valve.
2. Perform steps 6 through 9 of the spring-return ac-
tuator Disassembly procedure in the Maintenance sec-
tion. Observe the warning in the spring-return actuator
Disassembly procedure. Observe the orientation of the
rack and piston assemblies with respect to the pinion.
3. Change the orientation of the rack and piston as-
semblies with respect to the pinion. Pushing in on the
pistons must rotate the pinion in the opposite direction
from its direction of rotation before disassembly.
4. Perform the Assembling and Installing the Pistons
procedure in the Maintenance section.
5. Perform the Assembling and Installing the End
Caps on Spring-Return Actuators procedure in the
Maintenance section.
Parts Ordering
When replacement parts are required, always use
genuine Fisher Controls parts. Recommended spare
parts are identified in figures 10 and 11. These parts
are available as spare part kits from your Fisher Con-
trols sales office or sales representative.
When corresponding with the Fisher Controls sales
office or sales representative about this equipment
always mention the actuator model number and serial
number which are stamped on a metal tag secured to
the unit. Also, provide the key number and part dis-
cription from the tables in figures 10 and 11.
When ordering spare parts kits, always refer to this
model number and serial number.

Type 1032
12
Parts Kits
Repair Kits for Rack-and-Pinion Rotary Actuators
PART NUMBER
MODEL NUMBER Nitrile Seals
(Full Spare Parts) Fluoroelastomer Seals Only
45
70
130
185
280
425A
680A
1125
1370
2585
4580
R1032X00212
R1032X00222
R1032X00232
R1032X00242
R1032X00252
R1032X00262
R1032X00272
R1032X00282
R1032X00292
R1032X00302
R1032X00312
R1032X00412
R1032X00422
R1032X00432
R1032X00442
R1032X00452
R1032X00462
R1032X00472
R1032X00482
R1032X00492
R1032X00502
R1032X00512
Parts Included in Kit
Key Description Quantity in Kit
5
11
12
13
14
15
16
17
18
19
20
22
22
23
26
Safety key
Sealing washer
Piston O-ring
End cap O-ring
Upper pinion bearing
Lower pinion bearing
Piston bearing
O-ring
O-ring
Thrust bearing
Thrust bearing
Sealing washer
(Spring return with
chamfer hole only)
Sealing washer
(Spring return without
chamfer hole only)
Snap ring
O-ring
2
2
2
2
1
1
2
1
1
2
2
2
2
2
1
2
---
2
2
2
---
---
---
1
1
---
---
2
2
2
---
2
Retractor Rod Kits
PART NUMBER
MODEL NUMBER
2 Retractor Rods
(1) Provided
Per Each Number Ordered
45
70
130
185
280
425A
680A
1125
1370
2585
4580
12B9219X012
12B9219X022
12B9219X112
12B9219X032
12B9219X042
12B9219X052
12B9219X062
12B9219X072
12B9219X082
12B9219X092
12B9219X102
1. Retractor rods are required with disassembly or assembly of spring return actuators. Refer to the Maintenance procedures in this manual.

Type 1032
13
Parts List
Refer to the tables in figures 9 and 10 for the key num-
ber and part description for each part required. Use
this information when ordering parts.
Key
Number Part Description Qty Req’d Key Number Part Description Qry Req’d
1
2
3
4
5(1)
9
10
11(1,2)
12(1,2)
13(1,2)
Body
Pinion
Piston
End Cap
Safety Key
Travel Stop Adjustment Bolt
Travel Stop Lock Nut
Sealing Washer
Piston O-Ring
End Cap O-Ring
1
1
2
2
2
2
2
2
2
2
14(1)
15(1)
16(1)
17(1,2)
18(1,2)
19(1)
20(1)
23(1)
24
26(1,2)
Upper Pinion Bearing
Lower Pinion Bearing
Piston Bearing
O-Ring
O-Ring
Thrust Bearing
Thrust Washer
Snap Ring
Position Indicator (optional)
O-Ring
1
1
2
1
1
2
2
1
1
2
1. These parts are in spare parts kit.
2. These parts are in fluoroelastomer seal kit.
Figure 10. Type 1032 Double-Acting Actuator
33B0251-A
A5828-1 / IL

Type 1032
14
Key
Number Part Description Qty Req’d Key Number Part Description Qty Req’d
1
2
3
4
5(1)
6
7
8
9
10
11(1,2)
12(1,2)
13(1,2)
Body
Pinion
Piston
End Cap
Safety Key
Spring
Spring
Retractor Spring Seat
Travel Stop Adjustment Bolt
Travel Stop Lock Nut
Sealing Washer
Piston O-Ring
End Cap O-Ring
1
1
2
2
2
2
2
2
2
2
2
2
2
14(1)
15(1)
16(1)
17(1,2)
18(1,2)
19(1)
20(1)
21
22(1,2)
23(1)
24
26(1,2)
Upper Pinion Bearing
Lower Pinion Bearing
Piston Bearing
O-Ring
O-Ring
Thrust Bearing
Thrust Washer
Cap Screw
Sealing Washer
Snap Ring
Position Indicator (Optional)
O-Ring
1
1
2
1
1
2
2
2
2
1
1
2
1. These parts are in spare parts kit.
2. These parts are in fluoroelastomer seal kit.
Figure 11. Spring-Return Actuator
33B0252-A
A5829-1 / IL
For information, contact Fisher Controls:
Marshalltown, Iowa 50158 USA
Cernay 68700 France
Sao Paulo 05424 Brazil
Singapore 128461
                  
                               
Printed in U.S.A.
Fisher Controls International, Inc. 1991, 1993; All Rights Reserved
Fisher, Fisher-Rosemount, and Managing The Process Better are marks owned by Fisher Controls International, Inc. or Fisher-Rosemount Systems, Inc.
All other marks are the property of their respective owners.