Emerson Bettis G10 Series Operating instructions

Service Instructions

124842E Rev. C

October 2015

G01 through G10 Series Hydraulic Actuators

Double-Acting with M11 Hydraulic Override

Disassembly and Reassembly

Service Instructions

124842E Rev. C

Table of Contents

October 2015

ITable of Contents

Table of Contents

Section 1: Introduction

1.1 General Service Information.......................................................................... 1

1.2 Denitions .................................................................................................... 2

1.3 General Safety Information ........................................................................... 2

1.4 Bettis Reference Materials ............................................................................. 3

1.5 Service Support Items................................................................................... 3

1.6 Lubrication Requirements ............................................................................. 3

1.7 Fluid Requirements ....................................................................................... 4

1.8 General Tool Information .............................................................................. 4

1.9 Actuator Storage........................................................................................... 4

1.10 Actuator Installation ..................................................................................... 4

1.11 Actuator Start-up .......................................................................................... 5

1.12 Actuator Operation....................................................................................... 6

Section 2: Actuator Disassembly

2.1 General Disassembly ..................................................................................... 7

2.2 Hydraulic Power Module Disassembly ........................................................... 7

2.3 -H Hydraulic Override Module Disassembly ................................................... 8

2.4 Drive Module Disassembly ............................................................................ 9

Section 3: Actuator Reassembly

3.1 General Reassembly .................................................................................... 12

3.2 Drive Module Reassembly ........................................................................... 12

3.3 Hydraulic Power Module Reassembly .......................................................... 17

3.4 -H Hydraulic Override Module Reassembly.................................................. 19

3.5 Actuator Testing ......................................................................................... 21

Section 4: Field Conversions

4.1 Converting Double-Acting to Double-Acting with -H Hydraulic

Override Module ......................................................................................... 22

Section 5: Module/Component Removal and Installation

5.1 Spring Module Removal .............................................................................. 23

5.2 Hydraulic Power Module Installation ........................................................... 23

5.3 -H Hydraulic Override Module Removal....................................................... 24

5.4 -H Hydraulic Override Module Installation................................................... 25

5.5 G2 Through G10 Powr Swivl Module Removal ............................................. 26

5.6 G2 Through G10 Powr Swivl Module Installation ......................................... 26

Table of Contents

October 2015

Service Instructions

124842E Rev. C

II Table of Contents

Section 6: Actuator Support Information

6.1 Module Volume Table ................................................................................. 28

6.2 Module Weight Tables................................................................................. 28

6.3 G01 Tool Table ............................................................................................ 29

6.4 G2 Tool Table .............................................................................................. 30

6.5 G3 Tool Table .............................................................................................. 30

6.6 G4 Tool Table .............................................................................................. 31

6.7 G5 Tool Table .............................................................................................. 31

6.8 G7 Tool Table .............................................................................................. 32

6.9 G8 Tool Table .............................................................................................. 32

6.10 G10 Tool Table ............................................................................................ 33

Section 7: Troubleshooting

7.1 Fault Insertion ............................................................................................. 34

7.2 Operational Test.......................................................................................... 35

Section 8: Removal and Decommissioning

8.1 Removal and Decommissioning .................................................................. 36

Section 9: Document Revision ��37

Appendix A: List of Tables ��38

Appendix B: List of Drawings ��39

October 2015

Service Instructions

124842E Rev. C

Section 1: Introduction

Introduction

Section 1: Introduction

1�1 General Service Information

1�1�1 This service procedure is offered as a guide to enable general maintenance to

be performed on Bettis G01X0X-M11, G2X0X-M11, G3X0X-M11, G4X0X-M11,

G5X0X-M11, G7X0X M11, G8X0X-M11, and G10X0X-M11 Double-Acting Series

Hydraulic Actuators with –H override module. NOTE: Actuator models may not

have a M11 override but may have a –H Hydraulic Override Module without

a –M11 Override System.

1�1�2 Normal recommended service interval for this actuator series is ve years.

NOTE:

Storage time is counted as part of the service interval.

1�1�3 This procedure is applicable with the understanding that all electrical power and

hydraulic pressure have been removed from the actuator.

1�1�4 Remove all piping and mounted accessories that will interfere with the module(s)

that are to be worked on.

1�1�5 This procedure should only be implemented by a technically competent technician

who should take care to observe good workmanship practices.

1�1�6 Numbers in parentheses ( ) indicate the bubble number (reference number) used

on the Bettis assembly drawing and actuator parts list.

1�1�7 This procedure is written using the stop screw side of the housing (1-10) as a

reference and this side will be considered the front side of the actuator. The

housing cover (1-20) will be the top of the actuator.

1�1�8 Actuator module weights are listed in Section 6 Table 6.2.

1�1�9 When removing seals from seal grooves, use a commercial seal removing tool or a

small screwdriver with sharp corners rounded off.

1�1�10 Use a non-hardening thread sealant on all pipe threads.

CAUTION: FOLLOW MANUFACTURER'S INSTRUCTIONS

Apply the thread sealant per the manufacturer’s instructions.

1�1�11 Bettis recommends that disassembly of the actuator modules should be done in a

clean area on a work bench.

October 2015

Service Instructions

124842E Rev. C

Section 1: Introduction

Introduction

1�2 Definitions

WARNING

If not observed, user incurs a high risk of severe damage to actuator and/or fatal injury to personnel.

CAUTION

If not observed, user may incur damage to actuator and/or injury to personnel.

NOTE:

Advisory and information comments are provided to assist maintenance personnel in

carrying out maintenance procedures.

NOTE:

This product is only intended for use in large-scale xed installations excluded from the

scope of Directive 2011/65/EU on the restriction of the use of certain hazardous substances

in electrical and electronic equipment (RoHS 2).

1�3 General Safety Information

1�3�1 Products supplied by Emerson, in its "as shipped" condition, are intrinsically safe

if the instructions contained within this service instruction are strictly adhered to

and executed by well-trained, equipped, prepared and competent personnel.

WARNING: READ WARNING MESSAGES CAREFULLY

For the protection of personnel working on Bettis actuators, this procedure should be

reviewed and implemented for safe disassembly and reassembly. Close attention should be

noted to the WARNINGS, CAUTIONS and NOTES contained in this procedure.

WARNING: FOLLOW PLANT SAFETY PROCEDURES

This procedure should not supersede or replace any customer's plant safety or work

procedures. If a conict arises between this procedure and the customers procedures the

differences should be resolved in writing between an authorized customers representative

and an authorized Bettis representative.

October 2015

Service Instructions

124842E Rev. C

Section 1: Introduction

Introduction

1�4 Bettis Reference Materials

1�4�1 Assembly drawing for G01 through G10 double-acting hydraulic series actuators

with -H cylinder use part number 115916

1�4�2 M11 manual hydraulic override system operating instructions part number

126858 with M11 assembly drawing part number 126567

1�4�3 M11-S manual hydraulic override system operating instructions part number

121960 with M11 S assembly drawing part number 121107

1�5 Service Support Items

1�5�1 Bettis Module Service Kits

1�5�2 For rod extension retainer nut tool, refer to the following table

NOTE:

These tools are required only when extension rod assembly (1-50) or (9-50) is removed or

when a new extension rod assembly is installed:

Table 1� Actuator Model and Part Number

ACTUATOR MODEL BETTIS PART

NUMBER ACTUATOR MODEL BETTIS PART

NUMBER

G01 None required G5/G7 117369

G2 123616 G8/G10 117368

G3/G4 117370

1�5�3 Non-hardening thread sealant

1�6 Lubrication Requirements

NOTE:

Lubricants, other than listed in step 1.6.1, should not be used without prior written ap-

proval of Bettis Product Engineering.

1�6�1 All temperature services (-50°F to +350°F)/(-45.5°C to 176.6°C) use Bettis ESL-5

lubricant. ESL-5 lubricant is contained in the Bettis module service kit in tubes or

cans, and they are marked ESL -4, 5 and 10 lubricant.

October 2015

Service Instructions

124842E Rev. C

Section 1: Introduction

Introduction

1�7 Fluid Requirements

1�7�1 For use in the hydraulic power module. The following listed uids are

recommended uids only and do not limit the use of other hydraulic uids

compatible with supplied seals and coatings.

1�7�1�1 Standard temperature service (-20°F to +350°F)/(-28.9°C to +176.6°C)

use Shell Tellus S2 V Grade 32 automatic transmission uid or an Emerson

approved uid.

1�7�1�2 High temperature service (0°F to +350°F)/(-17°C to +176.6°C) use

Shell Tellus S2 V Grade 32 automatic transmission uid or an Emerson

approved uid.

1�7�1�3 Low temperature service (-50°F to +150°F)/(-45.6°C to 65.6°C) use Mobil

Univis HVI 13 hydraulic uid or an emerson approved uid.

1�7�2 For use in the -H hydraulic override module and the M11 manual hydraulic

override system:

CAUTION: ONLY USE CORRECT FLUID

Hydraulic uid, other than listed in step 1.7.2.1 should not be used in the M11 Override or –H

Hydraulic Override Module without prior written approval of Bettis Product Engineering.

1�7�2�1 All temperature service (20°F to +350°F) / (-28.9°C to +176.6°C) use

Shell Tellus S2 V Grade 32 automatic transmission uid or an Emerson

approved uid.

1�8 General Tool Information

1�8�1 Tools: All tools/hexagons are American Standard inch. Large adjustable wrench,

two (2) large screwdrivers, Allen wrench set, set of open/box end wrenches, rubber

or leather mallet, torque wrench (up to 1600 foot pounds/1269 N-m), breaker bar,

and a drive socket set. For recommended tool and wrench sizes refer to Section 6

Tables 6.3 through 6.10.

1�9 Actuator Storage

For applications where the actuator is not put into immediate service it is recommended

that the actuator be cycled with at least once per month. Indoor storage, if available, is

recommended for all actuators. Care should be taken to plug all open ports on actuator

and controls to keep out foreign particles and moisture. Also, actuators should not be

stored in an atmosphere harmful to resilient seals. For extended storage, contact factory.

1�10 Actuator Installation

1�10�1 Since there are many valve and actuator combinations, it is not practical to include

detailed instructions for each type. Mountings are designed to be as simple as

possible to keep guess work out of installation.

October 2015

Service Instructions

124842E Rev. C

Section 1: Introduction

Introduction

1�10�2 Actuators are shipped from the factory with the travel stops adjusted for

approximately ninety-degree rotation. Generally it is necessary to make slight

travel stop adjustments once the actuator is installed on the valve. Refer to the

valve manufacturer's recommendations for specic requirements. When the valve

has internal stops, the actuator should be adjusted at the same points.

NOTE:

The actual "stopping" should be done by the actuator. If the valve does not have internal

stops, adjust the actuator to the full open position. Using this as a reference point, rotate

the valve closed and adjust to the valve manufacturer's specications for total rotation.

1�10�3 Good instrument practices are also recommended. Clean/dry regulated hydraulic

pressure is essential for long service life and satisfactory operation. It should be

noted that new pneumatic lines often have scale and other debris in them, and

these lines should be purged of all foreign material.

NOTE:

Scale and debris can damage control valves, solenoids, seals, etc.

1�11 Actuator Start-up

1�11�1 Prestart-up checks

1. Inspect to ensure the unit has been mounted onto valve properly. Gear

ange mounting bolts, stem key, setscrew(s) are installed and secured

2. No tubing damaged or accessories dislodged during shipping or

installation

3. Indicated position conrms valve position

4. All switching valves in normal operating position as per schematic/

instructions

1�11�2 Check connections:

1. Pneumatic/hydraulic components connected as per schematic enclosed

or in service manual supplied

2. Pneumatic supply connected to the identied ports

3. Electrical connections terminals are secure

4. Wiring as per enclosed diagram or service manual supplied

1�11�3 When actuator is rst put into service, it should be cycled with regulated

pneumatic pressure. This is necessary because the seals have been stationary,

causing them to take a "set". Therefore, the actuator should be operated through

several cycles, exercising the seals, resulting in a service ready condition.

October 2015

Service Instructions

124842E Rev. C

Section 1: Introduction

Introduction

1�11�4 The actuator speed of operation is determined by a number of factors including:

1. Power supply line length

2. Power supply line size

3. Power supply line pressure

4. Control valve and tting orice size

5. Torque requirements of the valve

6. Size of the actuator

7. Setting of speed controls

8. Hydraulic manual override (where available)

1�11�5 Due to the interaction of these variables, it is difcult to specify a "normal"

operating time. Faster operating times may be obtained by using one or more of

the following:

1. Larger supply lines

2. Larger control valve

3. Higher supply pressure*

4. Quick exhaust valves

*Not to exceed maximum operating pressure of actuator or control components

1�11�6 Slower operating times may be obtained using ow control valves to meter

the exhaust. Excessive exhaust ow metering may cause erratic operation.

1�12 Actuator Operation

1�12�1 Controlled Operation: Controlled operation is accomplished by pressurizing and/or

depressurizing the appropriate cylinder inlet(s) of a double-acting.

Do not exceed pressures indicated on actuator nameplate�

1�12�2 Manual Operation: All pressure must be vented or equalized on both sides of the

pneumatic piston prior to manual operation.

Table of contents

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