Related Manuals for Emerson CBA730
Summary of Contents for Emerson CBA730
- Page 1 Service Instructions 137462E Rev. D August 2015 CBAX30 Double-Acting Series Pneumatic Actuators Disassembly and Reassembly...
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Page 3: Table Of Contents
Service Instructions Table of Contents 137462E Rev. D August 2015 Table of Contents Section 1: Introduction General Service Information ................. 1 Definitions ....................2 General Safety Information ................2 Bettis Reference Materials ................3 Service Support Items .................. 3 Lubrication Requirements ................3 General Tool Information ................ - Page 4 Service Instructions Table of Contents 137462E Rev. D August 2015 Section 6: Troubleshooting Fault Insertion ..................... 25 Operational Test ..................26 Section 7: Removal and Decommissioning Removal and Decommissioning ..............27 Section 8: Document Revision ��������������������������������������������28 Appendix A: List of Tables ���������������������������������������������������29 Appendix B: List of Figures ��������������������������������������������������30 Appendix C: List of Drawings ����������������������������������������������31 Table of Contents...
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Page 5: Section 1: Introduction
This service procedure is offered as a guide to enable general maintenance to be performed on Bettis™ CBA-300 double-acting series actuators. The following is a list of general CBA-300 model numbers: Table 1� CBA-300 Model Numbers MODEL (1) MODEL (1) MODEL (1) CBA730 CBA730-M3 CBA730-M3HW CBA830 CBA830-M3 CBA830-M3HW CBA930 CBA930-M3... -
Page 6: Definitions
Section 1: Introduction Service Instructions 137462E Rev. D August 2015 CAUTION: FOLLOW MANUFACTURER'S INSTRUCTIONS Apply the thread sealant per the manufacturer’s instructions. 1.1.10 Bettis recommends that disassembly of the actuator should be done in a clean area on a workbench. 1�2 Definitions WARNING:... -
Page 7: Bettis Reference Materials
Service Instructions Section 1: Introduction 137462E Rev. D August 2015 WARNING: FOLLOW COMPANY SAFETY PROCEDURES This procedure should not supersede or replace any customer’s plant safety or work procedures. If a conflict arises between this procedure and the customer’s procedures, the differences should be resolved in writing between an authorized customer's representative and an authorized Bettis representative. -
Page 8: Actuator Weight
Section 1: Introduction Service Instructions 137462E Rev. D August 2015 1�8 Actuator Weight Table 2� Actuator Weight Approximate Weight (2) Approximate Weight (2) Actuator Actuator Model Model CBA730 CBA930 70.4 CBA730-M3 59.4 CBA930-M3 71.7 CBA730- CBA930- 131.5 59.6 158.5 71.9 M3HW... -
Page 9: Actuator Start-Up
Service Instructions Section 1: Introduction 137462E Rev. D August 2015 1.10.3 Good instrument practices are also recommended. Clean/dry regulated pneumatic 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. -
Page 10: Actuator Operation
Section 1: Introduction Service Instructions 137462E Rev. D August 2015 1.11.5 Due to the interaction of these variables, it is difficult to specify a "normal" operating time. Faster operating time may be obtained by using one or more of the following: Larger supply lines Larger control valve Higher supply pressure *... -
Page 11: Section 2: Actuator Disassembly
Service Instructions Section 2: Actuator Disassembly 137462E Rev. D August 2015 Section 2: Actuator Disassembly 2�1 General Disassembly WARNING: DANGEROUS GAS AND/OR LIQUIDS It is possible, that the actuator may contain a dangerous gas and/or liquids. Ensure that all proper measures have been taken to prevent exposure or release of these types of contaminants before commencing any work. -
Page 12: Pneumatic Cylinder Disassembly
2.2.1 Remove hex nut (4-40) as follows: CBA730 through CBA1030 standard end cap stop screw or extended stop (ES), use step 2.2.1.1. CBA730 through CBA1030 with -M3 or -M3HW use step 2.2.1.2. 2.2.1.1 CBA730 through CBA1030 end cap stop screw or extended stop screw (ES) 2.2.1.1.1 Loosen and remove hex nut (4-40) and washer (4-90) from stop... -
Page 13: Housing Disassembly
137462E Rev. D August 2015 2.2.6 On actuator models CBA830, CBA930 and CBA1030, remove cylinder adapter (4-15) from flange of housing (1-10). Model CBA730 is not equipped with a cylinder adapter (4-15). 2.2.7 M3 JACKSCREW REMOVAL FROM END CAP (4-20). - Page 14 Service Instructions 137462E Rev. D August 2015 NOTE: For CBA730 through CBA1030-M3/M3HW models, the M3 jackscrew (4-30) cannot be removed now. The M3 used in these models can be removed later in this procedure using step 2.3.10. 2.3.2 Remove center bar (8-10) from housing adapter (6-10).
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Page 15: Section 3: Actuator Reassembly
Service Instructions Section 3: Actuator Reassembly 137462E Rev. D August 2015 Section 3: Actuator Reassembly 3�1 General Reassembly CAUTION: CHECK SHELF LIFE OF SEALS Only new seals that are still within the seals expectant shelf life should be installed into the actuator being refurbished. -
Page 16: Housing Reassembly
Section 3: Actuator Reassembly Service Instructions 137462E Rev. D August 2015 3�2 Housing Reassembly NOTE: Review Section 3 steps 3.1.1 through 3.1.6 before proceeding with actuator reassembly. In section 3.2 where the step indicates to "lubricate, coat or apply lubricant", use lubricant as identified in Section 1 step 1.6 for lubricating the part being installed. - Page 17 Service Instructions Section 3: Actuator Reassembly 137462E Rev. D August 2015 NOTE: Move the O-ring seal (7-30) down the ES or stop screw until it is next to the housing adapter (6-10). 3.2.2.3 Install washer (6-90) onto ES or stop screw (6-30). NOTE: Push the washer down the ES or stop screw until it is next to the housing adapter (6-10).
- Page 18 Section 3: Actuator Reassembly Service Instructions 137462E Rev. D August 2015 3.2.9 Hold the yoke key (1-40) in position and insert the torque shaft (1-30) into and through housing (1-10) and yoke (1-20). 3.2.10 Install thrust bearing (2-70) onto the upper area of torque shaft (1-30). 3.2.11 Install thrust washer (2-80) onto the upper area of torque shaft (1-30) on top of thrust bearing (2-70).
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Page 19: Pneumatic Cylinder Reassembly
Service Instructions Section 3: Actuator Reassembly 137462E Rev. D August 2015 3�3 Pneumatic Cylinder Reassembly NOTE: Review Section 3 steps 3.1.1 through 3.1.6 before proceeding with cylinder reassembly. In section 3.3 where the step indicates to "lubricate, coat or apply lubricant", use lubricant as identified in Section 1 step 1.6 for lubricating the part being installed. - Page 20 O-ring seal on the stepped diameter flange of cylinder adapter (4-15). 3.3.12.2 For CBA730 models, install the lubricated cylinder (4-10) over the piston and up against the O-ring seal on the flange of housing (1-10). 3.3.13 Coat O-ring seal (5-20) with lubricant and install into inner diameter seal groove located in the center bar hole of end cap (4-20).
- Page 21 3.3.15.1 For CBA830, CBA930 and CBA1030 models, install O-ring seal (5-15) onto the outer diameter of end cap (4-20). 3.3.15.2 For CBA730 models, install O-ring seal (5-10) onto the outer diameter of end cap (4-20). 3.3.16 Install end cap (4-20) onto center bar (8-10) and into cylinder (4-10). Position the end cap (4-20) so that the inlet port is at the bottom and the ES, cylinder stop screw or M3 jackscrew (4-30) is at the top of the actuator.
- Page 22 Section 3: Actuator Reassembly Service Instructions 137462E Rev. D August 2015 NOTE: Move the O-ring seal (5-30) down the ES or stop screw until it is next to the end cap (4-20). 3.3.19.3 Install washer (4-90) onto ES or stop screw (4-30). NOTE: Push the washer down the ES or stop screw until it is next to the end cap (4-20).
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Page 23: Section 4: Actuator Testing
4.1.6 Apply a leak testing solution to the following areas: 4.1.6.1 Cylinder to housing joint on CBA730 or cylinder to cylinder adapter to housing joints on CBA830, CBA930 and CBA1030 actuator models. 4.1.6.2 On the outboard end of housing adapter (6-10) at the center bar hex nut. - Page 24 4.1.8 Apply a leak testing solution to the following areas: 4.1.8.1 Cylinder to end cap joint. Checks O-ring seal (5-10) on CBA730 or checks O-ring seal (5-15) on CBA830, CBA930 and CBA1030 actuators. 4.1.8.2 Housing adapter (6-10) inlet port hole. Checks the piston to cylinder seal (5-40) and piston to center bar seal (5-25).
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Page 25: Section 5: Field Conversions
Service Instructions Section 5: Field Conversions 137462E Rev. D August 2015 Section 5: Field Conversions 5�1 High Temperature Service (-10 TRIM) 5.1.1 Disassemble and reassemble actuator per Sections 1 through Section 4 using new -10 (high temperature) Service Kit. 5�2 Low Temperature Service (-11 TRIM) 5.2.1 Disassemble and reassemble actuator per Sections 1 through Section 4 using... -
Page 26: Add An Extended Stop (Es) To Cylinder End Cap (4-20)
Section 5: Field Conversions Service Instructions 137462E Rev. D August 2015 5.3.2.4 Install hex nut (6-40) onto ES (6-30). NOTE: Rotate the hex nut down the ES until it is next to housing adapter (6-10). 5�4 Add an Extended Stop (ES) to Cylinder End Cap (4-20) NOTE: Prior to disassembly review all of Section 1 Introduction and Section 2 - Actuator Disassembly, step 2.1 - General Disassembly. -
Page 27: Add An M3 Jackscrew To Housing Adapter (6-10)
Service Instructions Section 5: Field Conversions 137462E Rev. D August 2015 5�5 Add an M3 Jackscrew to Housing Adapter (6-10) NOTE: This section can also be used to add an M3 to the cylinder end cap (4-20) at the same time as the M3 is added to the housing adapter (6-10). -
Page 28: Add An M3 Jackscrew To Cylinder Outer End Cap (4-20)
Section 5: Field Conversions Service Instructions 137462E Rev. D August 2015 5�6 Add an M3 Jackscrew to Cylinder Outer End Cap (4-20) 5.6.1 Prior to disassembly, review all of Section 1 - Introduction. 5.6.2 Disassemble the actuator per Section 2.1 - General Disassembly, Section 2.2 - Pneumatic Cylinder Disassembly steps 2.2 .2 through step 2.2.5. -
Page 29: Section 6: Troubleshooting
In the unlikely event of a fault developing, the following Fault Location Table is provided to assist the service engineer to perform troubleshooting. This table is designed to cover as wide a range of Emerson Bettis actuators as possible. Reference to equipment not supplied should be ignored. -
Page 30: Operational Test
Section 6: Troubleshooting Service Instructions 137462E Rev. D August 2015 6�2 Operational Test 6.2.1 Full Stroke Test The “Full Stroke Test” (“On-line”) must be performed to satisfy the PFD (average probability of failure on demand) value. The full stroke test frequencies will be defined by the final installer to achieve the defined SIL level. -
Page 31: Section 7: Removal And Decommissioning
If a conflict arises between this procedure and the customer's procedures, the differences should be resolved in writing between an authorized customer’s representative and an authorized Emerson/Bettis representative. CAUTION: ISOLATE AND POWER OFF ACTUATOR Make sure actuator is isolated before removing from valve. Turn OFF the power medium and bleed off all pressure first, including storage tank (if present). -
Page 32: Section 8: Document Revision
Section 8: Document Revision Service Instructions 137462E Rev. D August 2015 Section 8: Document Revision Table 4� Revision Overview DATE BY * DATE Released May 2002 B. Cornelius May 2002 19527 Apr. 2007 UPDATED L. Ramirez Apr. 2007 VAWCO2755 May 2012 UPDATED C. -
Page 33: Appendix A: List Of Tables
Service Instructions Appendix 137462E Rev. D August 2015 Appendix A: List of Tables Table 1. CBA-300 Model Numbers ..................1 Table 2. Actuator Weight ....................4 Table 3. Fault Location Table ....................25 Table 4. Revision Overview ....................28 Appendix... -
Page 34: Appendix B: List Of Figures
Appendix Service Instructions 137462E Rev. D August 2015 Appendix B: List of Figures Figure 1 Bushing Installation ....................15 Figure 2 M3 Targets ......................23 Appendix... -
Page 35: Appendix C: List Of Drawings
Service Instructions Appendix 137462E Rev. D August 2015 Appendix C: List of Drawings C�1 Part No� 129742, CBA300 Assembly Drawing Appendix... - Page 36 Appendix Service Instructions 137462E Rev. D August 2015 C�2 Part No� 129744, CBA300-M3HW Assembly Drawing Appendix...
- Page 38 Tianjin 301700 Holland Fasor 6 P. R. China Székesfehérvár 8000 The Emerson logo is a trademark and service mark of Emerson Electric Co. T +86 22 8212 3300 Hungary Bettis is a mark of one of the Emerson family of companies.