Fisher 4000 User manual

D102585X012

Type 4000 Valve Positioners

Contents

Introduction

1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

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

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

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

Installation

2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Positioner Mounting 3. . . . . . . . . . . . . . . . . . . . . . . . . .

Pressure Connections 4. . . . . . . . . . . . . . . . . . . . . . . .

Supply Connection 4. . . . . . . . . . . . . . . . . . . . . . . . . .

Instrument Connection 6. . . . . . . . . . . . . . . . . . . . . . .

Vent 6. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Operating Information

6. . . . . . . . . . . . . . . . . . .

Front Cover and Indicator Cover 6. . . . . . . . . . . . . . .

Cam Adjustment 7. . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Indicator Adjustment 7. . . . . . . . . . . . . . . . . . . . . . . . . .

Calibration 7. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Pre-calibration 7. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Zero and Span Adjustment 8. . . . . . . . . . . . . . . . . . .

Principle of Operation

8. . . . . . . . . . . . . . . . . . .

Maintenance

9. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Troubleshooting 9. . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Replacing the Pilot valve 9. . . . . . . . . . . . . . . . . . . . . .

Replacing the Diaphragm 10. . . . . . . . . . . . . . . . . . .

Replacing Gauges 10. . . . . . . . . . . . . . . . . . . . . . . . .

Removing the Positioner 10. . . . . . . . . . . . . . . . . . . .

Replacing the Positioner 10. . . . . . . . . . . . . . . . . . . .

Parts Ordering

11. . . . . . . . . . . . . . . . . . . . . . . . . . .

Parts List

11. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Introduction

Scope of Manual

This instruction manual provides installation, operat-

ing, calibration, maintenance, and parts ordering in-

formation for the Type 4000 pneumatic valve

Figure 1. Type 4000 Positioner Installed on System 9000

Actuator

W7371/ IL

positioner. Refer to separate instruction manuals for

information on the actuator control valve and other

accessories.

Only personnel qualified through training or experience

should install, operate, or maintain these positioners. If

there are any questions concerning the instructions in

this manual, contact your Fisher Controls sales office

or sales representative before proceeding.

Instruction Manual

Form 5455

January 1999 Type 4000

Type 4000

Table 1. Specifications

Input Signal(1)

3 to 15 psig (0.2 to 1.0 bar)

Output Signal(1)

Pneumatic pressure as required by the actuator up

to full supply pressure

Air Consumption

See table 2

Air Delivery

See table 2

Performance

Repeatability: ≤0.5%

Linearity:(1) ≤0.5%

Hysteresis:(1) ≤0.75%

Gain Factor:

80% Load (87 psi supply):

300 psi/psi (kPa/kPa)

50% Load (87 psi supply):

375 psi/psi (kPa/kPa)

Supply Pressure(1)

100 psig (6.9 bar), maximum

Operative Temperature Limits

–40 to 185_F (–40 to 85_C)

Housing Classification

NEMA 4, IEC 529 IP66

Pressure Connections

1/4-inch NPT

Gauge Connections

1/8-inch NPT

Approximate Weight

Without gauges: 2.4 lbs (1.1 kg)

With gauges: 2.9 lbs (1.3 kg)

1. This term is defined in ISA Standard S51.1–1979

Table 2. Positioner Air Consumption and Air Delivery

U. S. Units, SCFM(1)

Supply Pressure, psig

29 58 87 100

Air Consumption 0.08 0.16 0.27 0.31

Air Delivery 5.3 9.4 14.8 16.9

Metric Units, normal m3/hr(2)

Supply Pressure, bar

2467

Air Consumption 0.13 0.28 0.45 0.53

Air Delivery 9.3 17.4 25.3 29.8

1. SCFM—Standard cubic feet per minute (60_F and 14.7 psia)

2. Normal m3/hr—Normal cubic meters per hour (0_C and 1.01325 bar, absolute)

Description

The Type 4000 pneumatic valve positioner is designed

for use with System 9000 actuators. The positioner

mounts on the actuator and provides the desired valve

plug position for a specific input signal. The Type 4000

accepts a pneumatic input signal.

The positioner comes standard with gauge ports and

an O-ring sealed housing. The housing utilizes a

unique O-ring seal that can be adjusted to a sealed or

drained position.

Ease of calibration and maintenance are built into the

design with easily accessible span and zero adjust-

ment, and very simple parts replacement.

Specifications

Specifications for the Type 4000 valve positioner are

listed in table 1.

Installation

Typically, the positioner is ordered with the actuator. If

so, the factory mounts and calibrates the valve posi-

tioner. If the positioner is ordered separately from the

actuator, perform the mounting procedure. Refer to

the appropriate instruction manuals for actuator and

valve installation procedures.

WARNING

Avoid personal injury from sudden re-

lease of process pressure. Before

mounting the positioner on a valve in

service:

DDisconnect any operating lines pro-

viding air pressure or a control signal to

the actuator. Be sure the actuator can-

not 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 on both sides of the valve.

Type 4000

Figure 2. Type 4000 Positioner Feedback Lever

Arm Assembly (Key 1B)

POSITIONER SPINDLE

(NOT PART OF THE FEEDBACK

LEVER ASSEMBLY)

BOLT

NUT

FLATHEAD

SCREW

FEEDBACK LEVER ARM

18B2837-A

A7194/ IL

Drain the process media from both

sides of the valve.

Vent actuator loading pressure and

relieve any actuator spring precompres-

sion.

Use lock-out procedures to be sure

that the above measures stay in effect

while you work on the equipment.

Positioner Mounting

Mount the positioner on the actuator and make supply

and instrument connections. Refer to figure 14 for key

number locations. The feedback lever arm assembly

includes the lever arm, pin, nut, bolt, and flathead

screw as shown in figure 2. Depending upon how

much of the positioner is assembled, start the proce-

dure as follows:

If the positioner (key 1A) with feedback lever as-

sembly (key 1B) is already installed on the adapter

housing (key 1C), start with step 7.

If the feedback lever assembly (key 1B) is as-

sembled to the positioner (key 1A) but the positioner is

not installed on the adapter housing (key 1C), start with

step 1.

Ifthepositioner(key1A),adapterhousing(key1C),

and feedback lever arm assembly (key 1B) are not as-

sembled, start with step 4.

1. If the positioner (key 1A) comes already assembled

with the feedback lever arm assembly (key 1B), but

the positioner is not installed on the adapter housing

(key 1C), remove the feedback lever arm assembly

(key 1B) from the positioner spindle by removing the

flathead screw that holds the lever to the spindle.

Figure 3. Assembling the Type 4000 Positioner to the

Adapter Housing

ADAPTER HOUSING

(KEY 1C)

POSITIONER

(KEY 1A)

MOUNTING

SCREWS

W7369/ IL

Note

Mounting the positioner (key 1A) may be

easier with the adapter housing (key 1C)

removed from the actuator.

2. To remove the adapter housing (key 1C) from the

actuator, remove the two bolts shown in figure 5 and

remove the adapter housing from the actuator. Be

careful not to lose the O-ring (key 167) that goes be-

tween the adapter housing and the actuator.

3. At this point the positioner (key 1A), adapter hous-

ing (key 1C), and feedback lever arm assembly (key

1B) should all be unassembled from each other.

4. Assemble the positioner (key 1A) to the adapter

housing (key 1C) as shown in figure 3. Be sure the

O-rings are in place between the adapter housing and

the positioner, then secure the positioner to the adapt-

er housing with the four screws.

5. Attach the feedback lever arm assembly (key 1B)

to the positioner spindle with the flathead screw as

shown in figure 2.

6. At this point the positioner (key 1A), adapter hous-

ing (key 1C), and the feedback lever arm assembly

(key 1B) should be assembled together.

7. Adjust the pin on the feedback lever arm assembly

for the appropriate actuator travel. For actuators with

3/4-inch (19.1 mm) travel or less, use the 30 degree

markings. For actuator travels greater than 3/4-inch

(19.1 mm), use the 60 degree markings.

Note

The next two steps may be performed in

either order to aid in mounting the posi-

tioner to the actuator depending upon

actuator size:

Type 4000

Figure 4. Type 4000 Positioner Adapter Housing Point of

Connection

O-RING

(KEY 167)

1/8 NPT PORT

FOR POSITIONER

OUTPUT

W7370/ IL

NOTE:

O-RING (KEY 167) INCLUDED WITH ADAPTER HOUSING (KEY 1C)

NOTE:

TWO CAP SCREWS (KEY 116) ARE INCLUDED WITH

ADAPTER HOUSING (KEY 1C)

Figure 5. Mounting the Type 4000 Positioner on the Actuator

W7372/ IL

CAP

SCREW

(KEY 116)

For smaller size actuators (sizes 12

and 20), perform step 8 then step 9

For larger size actuators (size 50

and 80), perform step 9 first then step 8.

Be sure the pin on the feedback lever

arm assembly engages the feedback

bracket slot.

8. Ensure the O-ring (key 167) on the bottom of the

adapter housing (key 1C), shown in figure 4, is lubri-

cated and in position. Install the adapter housing onto

the power module assembly with two cap screws (key

116) as shown in figure 5.

Figure 6. Installing the Feedback Bracket on the Actuator

Power Module (Size 20 shown)

USE THESE HOLES

FOR SIZE 20 ACTUATOR

USE THESE HOLES

FOR SIZE 50 AND 80

ACTUATORS

W7048/ IL

9. Refer to figure 6. Install the feedback bracket (key

108) to the top of the power module with two cap

screws (key 105) and washers (key 122).

10. If necessary, make minor adjustments of the feed-

back lever arm assembly pin to ensure that the feed-

back bracket and feedback lever arm assembly do not

pinch, bind, or bend during normal operation

Pressure Connections

Dimensions and connections are shown in figure 7. All

pressure connections are 1/4-18 NPT female connec-

tors. Use 3/8-inch tubing or 1/4-inch pipe for all pres-

sure connections. Gauge ports are 1/8-inch NPT fe-

male connectors.

WARNING

Valve positioners are capable of provid-

ing full supply pressure to connected

equipment. To avoid personal injury and

equipment damage, make sure the sup-

ply pressure never exceeds the maxi-

mum safe working pressure of any con-

nected equipment.

Supply Connection

WARNING

Personal injury or property damage may

occur from an uncontrolled process if

the supply medium is not clean, dry, oil-

free air, or non-corrosive gas. Industry

Type 4000

ACTUATOR YOKE BOSS

DIAMETER

WITHOUT 67AF

WITHOUT GAUGES WITH 67AF

WITH GAUGES H AR

ACTUATOR

SIZE DIAMETER A B C B1 D

SIZE

Inch mm Inch mm Inch mm Inch mm Inch mm Inch mm Inch mm Inch mm

12 1-1/8 28.6 4.97 126.2 7.48 190 9.00 228.6 8.50 216 8.00 203.2 12.8 324.4 3.50 88.9

20 2-1/8 54 4.97 126.2 7.48 190 9.00 228.6 8.50 216 8.00 203.2 12.8 324.4 3.50 88.9

25 2-1/8 54 6.72 170.7 8.93 226.7 12.1 306.2 9.95 252.7 9.53 242.1 16.9 428.5 3.75 95.3

50 2-13/16 71.4 6.72 170.7 8.93 226.7 12.1 306.2 9.95 252.7 9.53 242.1 16.9 428.5 3.75 95.3

instrument air quality standards de-

scribe acceptable dirt, oil, and moisture

content. Due to the variability in nature

of the problems these influences can

have on pneumatic equipment, Fisher

Controls has no technical basis to rec-

ommend the level of filtration equipment

required to prevent performance degra-

dation of pneumatic equipment. A filter

or filter regulator capable of removing

particles 40 microns in diameter should

suffice for most applications. Use of

suitable filtration equipment and the es-

tablishment of a maintenance cycle to

monitor its operation is recommended.

The supply medium must be clean, dry air or noncor-

rosive gas that meets the requirements of ISA Stan-

dard S7.3-1975 (R1981). The supply pressure should

not exceed the following limits:

For the actuator and positioner, do not exceed

the maximum pressure rating of 100 psi (6.8 bar).

For the valve, do not exceed the maximum allow-

able thrust of the specific valve.

If a Type 67AF regulator is mounted on the actuator,

connect supply pressure to the supply connection on

the regulator. Connect the regulator output to the sup-

ply port S on the adapter housing. Gauge port S is

sealed with a plug. To install a supply gauge, unscrew

the plug and install an appropriate gauge.

TYPE 4000 POSITIONER

Figure 7. Dimensions

TYPE 67AF 1/4-18 NPT

SUPPLY CONNECTION

1/4-18 NPT INSTRUMENT

CONNECTION

1/4-18 NPT SUPPLY

CONNECTION

1/4-18 NPT

OUTLET

CONNECTION

PLUGGED

AR(1)

A B

C/2 C/2

NOTES:

1. AR = ACTUATOR REMOVAL CLEARANCE

A7195-1/ IL

OUTPUT GAUGE

SUPPLY

GAUGE

INSTRUMENT

GAUGE

Type 4000

Figure 8. Front Cover and Indicator Cover

FRONT COVER

INDICATOR

COVER O-RING

IDENTIFICATION

COVER INDICATOR

COVER

FRONT

COVER

O-RING

NOTCH

FRONT COVER SHOWN WITH O-RING LOOPED

OVER NOTCHES TO PERMIT DRAINING

A7196/ IL

Instrument Connection

Connect the control device 3 to 15 psig (0.2 to 1.0 bar)

output to port I on the adapter housing. If a gauge to

monitor the input signal is desired, remove the plug

from gauge port Ipand install an appropriate pressure

gauge.

Output Gauge

If an output gauge is desired, remove the plug from

gauge port C and install an appropriate pressure

gauge.

Vent

WARNING

If a flammable, toxic, or reactive gas is

to be used as the supply pressure me-

dium, personal injury or property dam-

age could result from fire or explosion

of accumulated gas or from contact with

toxic, or reactive gas. The positioner/ac-

tuator assembly does not form a gas-

tight seal, and when the assembly is in

an enclosed area, adequate ventilation

and necessary safety measures should

be used.

There is no pipe fitting for remote venting. The posi-

tioner exhaust is under the actuator cover.

Operating Information

Front Cover and Indicator Cover

The positioner front cover is shown in figure 8. It is

secured to the unit with four captive screws and

sealed with an O-ring. The front cover O-ring can be

looped over notches in the front cover to allow for

drainage. There are eight locations on the front cover

where the O-ring can be looped. This unique sealing

system allows for complete sealing or draining of the

units by changing the position of the front cover O-

ring.

The indicator cover is O-ring sealed and secured by a

bayonet coupling. The indicator cover also secures the

identification cover to the front cover.

To remove the indicator cover, turn it slightly counter-

clockwise until it loosens. The identification cover and

indicator cover O-ring are now removable. When

installing the indicator cover and identification cover,

make sure that the indicator cover O-ring is properly

engaged.

Two identification covers are available: one for actua-

tor travels of 3/4-inch (19.1 mm) or less, and one for

Type 4000

Table 3. Cam Position and Identification Cover Selection

Information

Actuator Travel Cam

Lobe

Cam Orientation for

Actuator Failure Mode Identification

Cover

Actuator

Travel

Lobe Fail Open Fail Close

Cover

Markings

greater than

0.75 inch (19.1 mm) 60D R P5FV60R

less than or equal to

0.75 inch (19.1 mm) 30D R P5FV30R

actuator travels greater than 3/4-inch (19.1 mm). Refer

to table 3 to select the correct identification cover.

Cam Adjustment

Refer to figure 9. With the cover and indicator re-

moved, loosen the screw and turn the cam locking nut

counterclockwise until the cam loosens.

The cam has two lobes. The 30 degree lobe is used

for actuator travels of 3/4-inches (19.1 mm) or less.

The 60 degree lobe is used for actuator travels of

greater than 3/4-inch (19.1 mm). The cam also may be

turned over. Each lobe is stamped either direct (D) or

reverse (R). Refer to table 3 for cam installation infor-

mation.

Install the cam so that the follower will ride on the cor-

rect lobe listed in table 3. For fail-open actuators, the

follower will ride on the cam lobe above the follower.

For fail-close actuators the follower will ride on the

cam lobe below the follower.

To secure the cam, make sure the screw is backed

out from the locking nut. Tighten the locking nut finger

tight then tighten the screw. Install and adjust the indi-

cator and reinstall the cover.

Indicator Adjustment

To adjust the indicator, remove the front cover and pull

the indicator upwards until it comes off the Allen

screw. Before installing the indicator make sure that

the Allen screw is tight. Press the indicator on the

screw and adjust it by rotating clockwise to the desired

position.

Calibration

Pre-calibration

Ensure that the cam is installed correctly for the ap-

propriate actuator travel and failure mode. Refer to the

“Cam Adjustment” procedure. Also ensure the pin on

the feedback lever arm assembly is positioned correct-

Figure 9. Cam Adjustment

CAM LOCKING NUT

SCREW

CAM

CORRECT

INCORRECT

CAM

FOLLOWER

1/16-INC H

(1–2 mm)

CAM POSITIONED FOR A FAIL-OPEN

ACTUATOR WITH 3/4-INCH (19.1 MM)

OR LESS TRAVEL

A7197-1/ IL

ly for the appropriate actuator travel. Refer to step 7 in

the “Positioner Mounting” procedure.

With the two locking screws facing you, as shown in

figure 10, there should be at least one coil of the feed-

back spring above the screws. However, the end of

the feedback spring should not touch the spring guide.

To adjust the spring, loosen the two locking screws.

Hold the two locking screws in place while rotating the

feedback spring. Tighten the locking screws.

Type 4000

ZERO

ADJUSTMENT

LOWER ARM

Figure 10. Positioner Span and Zero Adjustment Locations

SPAN

ADJUSTMENT

SPRING GUIDE

LOCKING SCREW

A7198/ IL

ZERO ADJUSTMENT

COVER

Zero and Span Adjustment

Refer to figure 10.

1. Remove the positioner front cover.

2. Apply supply pressure to the positioner.

3. Set the input signal to the 0% value [0%=3 psig

(0.2 bar)] and wait for the unit to reach steady state.

4. Rotate the zero adjustment until the actuator stem

is at its starting position. Zero is adjusted by turning

the silver thumb wheel located on the lower arm or

externally with a screwdriver through the zero adjust-

ment opening.

5. Slowly increase the input signal until the input

reaches the 100% value [100%=15 psig (1.0 bar)].

Observe the actuator travel and valve position as the

input increases. Note the actuator travel at 100% input

signal.

6. Set the input signal to the 0% value.

7. If necessary, loosen the locking screw and adjust

the span as follows (span is adjusted with the brass

colored thumb wheel located on the feedback spring):

Figure 11. Principle of Operation

A7199/ IL

If the actuator travel recorded in step 5 is short of

the desired travel at 100% input signal, rotate the span

adjustment down to increase span. Tighten the locking

screw.

If the travel recorded in step 5 reaches the de-

sired travel before the input signal reaches the 100%

value, rotate the span adjustment up to decrease

span. Tighten the locking screw.

After the span adjustment, recheck to be sure the end

of the feedback spring is not touching the spring guide.

8. After a span adjustment, recheck the zero and ad-

just if necessary.

9. Repeat steps 4 through 8 as necessary to achieve

correct actuator travel.

10. Replace the positioner front cover.

11. If you used the zero adjustment opening, remem-

ber to install the zero adjustment cover to ensure the

unit is sealed.

Principle of Operation

Refer to figure 11.

The pneumatic positioner operates on a force balance

principal. Force is originated by the signal pressure

transmitted through a diaphragm on to the balance

arm. The opposing force is achieved through the feed-

back spring and is proportional to the position of the

lower arm. The lower arm position is determined by

the position of the cam which is secured to the spindle

Type 4000

and connected to the actuator power module through

a feedback linkage, thus providing feedback from the

actuator/valve. When these two forces are equal, the

balance arm and the spool in the pilot valve is in a

neutral position—the complete unit is in a balanced

position. The pilot valve controls the air, supplied

through port S, to the actuator.

Assume an equilibrium position. An increasing control

pressure deflects the diaphragm 1to the right, com-

pressing the feedback spring 3. The balance arm 2

moves the spool 7in the pilot valve 8furnishing supply

air to the actuator.

With increasing supply air, the linear motion of the ac-

tuator stem rotates the positioner spindle 6. The

spindle and cam 5rotation forces the lower arm 4to

the left compressing the feedback spring 3. This mo-

tion continues until the two forces are equal and the

unit is in an equilibrium position.

Maintenance

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 can-

not 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 actuator loading pressure and

relieve any actuator spring precompres-

sion.

Use lock-out procedures to be sure

that the above measures stay in effect

while you work on the equipment.

Other than the pilot valve, repair of the positioner is by

replacement. To replace the positioner, see the Posi-

tioner Removal and Positioner Replacement sections.

To replace the pilot valve, see Replacing the Pilot

Valve. On units with gauges, to replace the gauges,

see Replacing Gauges.

Troubleshooting

Signal change has no effect on the actuator posi-

tion.

—Check indicator and screw.

—Check air supply to positioner.

—Check input signal to positioner.

—Check diaphragm for damage or leakage.

—Check pilot valve function.

—Check cam for correct setting.

Signal change results in actuator running to end

positions.

—Check coupling between positioner and actuator.

—Check cam position and locking screw.

—Check input signal.

Inaccurate positioning.

—Dirty or worn pilot valve.

—Defective or leaking diaphragm.

—Input signal fluctuates.

—Incorrect sizing of actuator.

—Valve/actuator “stiction”.

—Loose cam.

Replacing the Pilot Valve

Refer to figure 12 to remove the pilot valve for clean-

ing or inspection.

1. Shut off supply pressure to the positioner.

2. Remove the positioner front cover.

3. Remove the screw and carefully lift out the com-

plete pilot valve assembly.

4. Gently remove the spool from the block and clean

the parts, using methylate cleaner or similar. Blow the

parts dry with compressed air. If the parts show signs

of wear, replace the assembly.

Note

Mixing spool valves and valve bodies

may result in very high bleed rates and

poor performance.

Type 4000

Figure 12. Pilot Valve Assembly

SCREW

PILOT

VALVE

ASSEMBLY

SPOOL SPOOL GROVE

BALANCE ARM

LEAF SPRING

A7200/ IL

5. Check the O-rings, then secure and install the pilot

valve assembly to the positioner housing and secure it

with the screw. Make sure that the leaf spring on the

balance arm is properly fitted in the spool groove.

6. Check again to insure smooth operation of the as-

sembly.

Replacing the Diaphragm

Refer to figure 13.

1. Loosen the four screws and remove the diaphragm

cover.

2. Loosen the screw that secures the diaphragm. Re-

move the diaphragm and washers.

When installing the diaphragm make sure to place one

washer on each side of the diaphragm. Make sure that

the raised circle on the washers is facing the dia-

phragm.

3. Install the screw and tighten.

4. Check the O-ring on the diaphragm cover, then

install and secure the cover with the four screws.

Replacing Gauges

1. Shut off supply pressure and process lines to the

positioner.

2. Remove the defective gauge from the adapter

housing.

3. Coat the threads of the replacement gauge with a

sealant (Zink plate No. 770 or equivalent).

Figure 13. Diaphragm

DIAPHRAGM COVER SCREWS

SCREW WASHERS

DIAPHRAGM

A7201/ IL

4. Screw the replacement gauge into the adapter

housing gauge connection.

5. Apply supply pressure to the positioner. Using a

soap solution, check around the ports and connections

for leaks.

Removing the Positioner

1. Shut off supply pressure and process lines to the

positioner.

2. Remove the actuator cover.

3. Remove the flathead screw that secures the feed-

back lever to the positioner spindle. Remove the feed-

back lever from the spindle.

4. Refer to figure 3. Remove the four mounting

screws from the bottom of the adapter housing.

5. Lift the positioner off the adapter housing.

Replacing the Positioner

1. Replace the positioner on the actuator by perform-

ing the mounting and connection procedures in the

“Installation” section.

2. Calibrate the positioner by performing the proce-

dures in the “Calibration” section.

Type 4000

Figure 14. Type 4000 Positioner Assembly

FEEDBACK BRACKET

(KEY 108) LEVER/ARM ASSEMBLY

(KEY 1B)

POSITIONER TYPE 4000

(KEY 1A)

1/4-18 NPT

SUPPLY CONNECTION

1/4-18 NPT

INSTRUMENT

CONNECTION

INSTRUMENT

GAUGE PORT

IDENTIFICATION

COVER

(KEY 2)

ADAPTOR

HOUSING

(KEY 1C)

OUTPUT

GAUGE

PORT

INDICATOR SHOWN

FAIL CLOSE FOR

REFERENCE ONLY

SUPPLY GAUGE

PORT

38B2828-A

A7202/ IL

Parts Ordering

When corresponding with your Fisher Controls sales

office or sales representative about this equipment,

refer to the serial number found on the Fisher serial

tag attached to the positioner body. Also, specify the

complete 11-character part number from the following

parts list when ordering replacement parts.

Parts List

Key Description Part Number

1 Type 4000 Positioner

w/adapter housing and feedback

lever arm ass’y 18B2833X012

w/feedback lever arm ass’y but

w/o adapter housing 18B2834X012

1A Type 4000 Positioner w/o adapter housing or

feedback lever ass’y 18B3919X012

1B Feedback Lever Arm ass’y 18B2837X012

1C Adapter Housing 18B2839X012

2 Identification Cover

For 3/4” (19.1 mm) travel or less

P5FV30R 18B2836X012

For greater than 3/4” (19.1 mm) travel

P5FV60R 18B2835X012

3 Instrument Gauge

Triple Scale 0–30 psi/2 bar/0.2 MPa 11B4036X012

4 Supply Gauge

Triple Scale 0–160 psi/11 bar/1.1 MPa 11B4036X032

Key Description Part Number

5 Output Gauge

Triple Scale 0–160 psi/11 bar/1.1 MPa 11B4036X032

– – – Test Connections, use when gauges or

pipe plugs are not specified (3 req’d) 1N908899012

– – – Pilot Valve 18B2838X012

105 Cap Screw (w/o switch, 2 req’d; w/switch, 4 req’d)

For actuator size 12 & 20

English 1A381624052

Metric 19A4787X032

For actuator size 25, 50, & 80

English 17B6170X012

Metric 17B6174X012

108 Feedback Bracket (for Type 4000 positioner)

For actuator size 12 & 20 38B2848X012

For actuator size 25 & 50 38B2849X012

For actuator size 80 38B2850X012

108 Feedback Bracket (for position switch)

For actuator size 12 & 20

English 37B0912X012

Metric 37B2228X012

For actuator size 25 & 50

English 37B4663X012

Metric 37B4668X012

For actuator size 80

English 37B1516X012

Metric 37B1529X012

122 Washer (w/o switch, 2 req’d; w/switch 4 req’d)

For actuator size 12 & 20

English 1B8659X0012

Metric 10B6633X022

For actuator size 25, 50, & 80

English 17B4654X012

Metric 17B6173X012

167 O-ring

English 1E591406992

Metric 17B2231X012

Type 4000

For information, contact Fisher Controls:

Marshalltown, Iowa 50158 USA

Cernay 68700 France

Sao Paulo 05424 Brazil

Singapore 128461

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Printed in U.S.A.