EMERSON Manual Service Instructions for GTD Series Actuator Bettis
Summary
This comprehensive service manual provides technical instructions for maintaining Bettis GTD Series Double Acting Actuators. It guides technically competent technicians through the complete lifecycle of actuator servicing, including detailed procedures for gas cylinder and hydraulic oil cylinder disassembly and reassembly. Coverage encompasses general safety guidelines, lubrication requirements, step-by-step component installation (e.g., drive module removal/installation), and necessary actuator testing to ensure optimal operational performance.
Page 1 Text Content
Service Instructions 133893 Rev. C January 2013
GTD Series Actuators
Page Summary Contents For EMERSON Manual Service Instructions for GTD Series Actuator Bettis
Page 1
Service Instructions 133893 Rev. C January 2013 GTD Series Actuators
Page 3
Service Instructions Table of Contents 133893 Rev. C January 2013 Table of Contents Section 1: Introduction 1.1 General Service Information ...............................................................
Page 4
Section 1: Introduction Service Instructions 133893 Rev. CJanuary 2013 Section 1: Introduction 1�1 General Service Information 1.1.1 This service procedure is offered as a guide to enable general main...
Page 5
Service Instructions Section 1: Introduction 133893 Rev. C January 2013 1�2 Definitions WARNING If not observed, user incurs a high risk of severe damage to actuator and/or fatal injury to personnel. ...
Page 6
Section 1: Introduction Service Instructions 133893 Rev. CJanuary 2013 1�4 Bettis Reference Materials 1.4.1 Assembly Drawing for GTD01 through GTD7 Series Actuators use part number 133202. 1�5 Service...
Page 7
Service Instructions Section 2: Actuator Disassembly 133893 Rev. C January 2013 Section 2: Actuator Disassembly 2�1 General Disassembly WARNING: CHECK FOR DANGEROUS GAS AND LIQUIDS It is very possible...
Page 8
Section 2: Actuator Disassembly Service Instructions 133893 Rev. CJanuary 2013 NOTE: The stop screw will be removed later in this procedure. 2.2.3 Remove the jam nut (3-190) and o-ring seal (4-100) fr...
Page 9
Service Instructions Section 2: Actuator Disassembly 133893 Rev. C January 2013 2.3.3 Remove the jam nut (7-190) from stop screw (7-180). 2.3.4 Remove stop screw (7-180) from outer end cap (7-80). 2.3...
Page 10
Section 2: Actuator Disassembly Service Instructions 133893 Rev. CJanuary 2013 2.4.3 Remove one vent check assembly (13) from top of housing cover (1-20). 2.4.4 Unscrew and remove hex cap screws (1-16...
Page 11
Service Instructions Section 2: Actuator Disassembly 133893 Rev. C January 2013 2.4.20 Unscrew and remove two stop screw plugs (1-180) from housing (1-10). 2.4.21 Housing (1-10) vent check assembly re...
Page 12
Section 3: Actuator Reassembly Service Instructions 133893 Rev. CJanuary 2013 Section 3: Actuator Reassembly 3�1 General Reassembly CAUTION: CHECK SHELF LIFE OF SEALS Only new seals, that are still wi...
Page 13
Service Instructions Section 3: Actuator Reassembly 133893 Rev. C January 2013 3.2.2 If the two yoke bearings (2-40) are being replaced, install new bearing into housing cover (1-20) and housing (1-10...
Page 14
Section 3: Actuator Reassembly Service Instructions 133893 Rev. CJanuary 2013 NOTE: On GTD7 model actuators apply thread adhesive, Locktite 242, to threads of hex cap screws (1-110). Reference assembl...
Page 15
Service Instructions Section 3: Actuator Reassembly 133893 Rev. C January 2013 3.2.21 Install thrust bearing (2-110) onto position indicator (1-140). 3.2.22 Install o-ring seal (2-100) onto position i...
Page 16
Section 3: Actuator Reassembly Service Instructions 133893 Rev. CJanuary 2013 3.3.5 Install two split ring halves (3-50) into the outer most groove in piston rod assembly (3-40) and retain with one re...
Page 17
Service Instructions Section 3: Actuator Reassembly 133893 Rev. C January 2013 CAUTION: INSTALL POLYPAK SEAL CORRECTLY Install Polypak seal with energizer ring facing piston side of inner end cap. 3.3...
Page 18
Section 3: Actuator Reassembly Service Instructions 133893 Rev. CJanuary 2013 3.3.30 Install hex nuts (3-105) onto socket cap screws (3-100). 3.3.31 Remove hex nuts (3-90) from tie bars (3-20). 3.3.32...
Page 19
Service Instructions Section 3: Actuator Reassembly 133893 Rev. C January 2013 3�4 GTO Oil Cylinder Reassembly NOTE: Review section 3.1 General Reassembly before proceeding with Hydraulic Power Module...
Page 20
Section 3: Actuator Reassembly Service Instructions 133893 Rev. CJanuary 2013 CAUTION: INSTALL PISTON SEAL CORRECTLY Install the piston seal with energizer ring facing outside edge of piston (7-30). 3...
Page 21
Service Instructions Section 3: Actuator Reassembly 133893 Rev. C January 2013 Table 4� Tie Bar Nuts (7-90) Torque Table Housing TORQUE (±5%) Housing TORQUE (±5%) Model FT-lb N-m Model FT-lb N-m GTD01...
Page 22
Section 4: Module Removal and Installation Service Instructions 133893 Rev. CJanuary 2013 Section 4: Module Removal and Installation NOTE: The GTO oil cylinder is the only GTD actuator component that ...
Page 23
Service Instructions Section 4: Module Removal and Installation 133893 Rev. C January 2013 4�2 GTO Oil Cylinder Installation NOTE: Review section 3.1 General Reassembly before proceeding with GTO Hydr...
Page 24
Section 4: Module Removal and Installation Service Instructions 133893 Rev. CJanuary 2013 4.2.8 Install lock washers (7-110) onto socket cap screws (7-115). 4.2.9 Install socket cap screws (7-115), wi...
Page 25
Service Instructions Section 5: Actuator Support Information 133893 Rev. C January 2013 Section 5: Actuator Support Information 5�1 Weights By Item Number And Actuator Housing Size Table 6� Weights By...
Page 26
Section 5: Actuator Support Information Service Instructions 133893 Rev. CJanuary 2013 5�2 GTD01 Tool Style And Wrench Size Table 7� GTD01 Tool Style And Wrench Size WRENCH ITEM LOCATION OR RECOMMENDE...
Page 27
Service Instructions Section 5: Actuator Support Information 133893 Rev. C January 2013 5�3 GTD2 Tool Style and Wrench Size Table 8� GTD2 Tool Style and Wrench Size WRENCH ITEM LOCATION OR RECOMMENDED...
Page 28
Section 5: Actuator Support Information Service Instructions 133893 Rev. CJanuary 2013 5�4 GTD3 Tool Style and Wrench Size Table 9� G3 Tool Style and Wrench Size WRENCH ITEM LOCATION OR RECOMMENDED IT...
Page 29
Service Instructions Section 5: Actuator Support Information 133893 Rev. C January 2013 5�5 GTD4 Tool Style And Wrench Size Table 10� GTD4 Tool Style and Wrench Size WRENCH ITEM LOCATION OR RECOMMENDE...
Page 30
Section 5: Actuator Support Information Service Instructions 133893 Rev. CJanuary 2013 5�6 GTD5 Tool Style And Wrench Size Table 11� GTD5 Tool Style and Wrench Size WRENCH ITEM LOCATION OR RECOMMENDED...
Page 31
Service Instructions Section 5: Actuator Support Information 133893 Rev. C January 2013 5�7 GTD7 Tool Style and Wrench Size Table 12� GTD7 Tool Style and Wrench Size WRENCH ITEM LOCATION OR RECOMMENDE...
Page 32
Section 6: Document Revision Service Instructions 133893 Rev. CJanuary 2013 Section 6: Document Revision Table 13� Revision Overview ECN DATE REV BY * DATE Released COMPILED C. Rico January 2013 Revie...
Page 33
Service Instructions Appendix 133893 Rev. C January 2013 Appendix A: List of Tables Table 1. Housing Cover Screw Quantity and Torque .......................................................... Table 2....
Page 34
Appendix Service Instructions 133893 Rev. CJanuary 2013 Appendix B: List of Drawings B�1 Part No� 133202, GTD Assy Dwg, Sheet 1 of 2 Appendix
Page 35
Service Instructions Appendix 133893 Rev. C January 2013 B�2 Part No� 133202, GTD Assy Dwg, Sheet 2 of 2 Appendix
Page 37
World Area Confi guration Centers (WACC) offer sales support, service, inventory and commissioning to our global customers. Choose the WACC or sales offi ce nearest you: NORTH & SOUTH AMERICA MIDD...
Manual Details
| Brand | Emerson |
|---|---|
| Pages | 37 |
| File Size | 1.26 MB |
| Published | June 03, 2026 |
72 views
Enter the captcha to get the download link:
Frequently Asked Questions
What is the recommended service interval for this actuator series?
The normal recommended service interval is five years or the maximum total life cycle.
Which specific GTD actuators are covered by this service procedure?
It covers GTD01X0X, GTD2X0X, GTD3X0X, GTD4X0X, GTD5X0X, and GTD7X0X Double Acting Series Actuators.
What safety measures must be taken before performing maintenance?
All electrical power and gas pressure must be removed from the actuator, and interfering piping/accessories should be removed.
What structural components utilize tie bar construction in this system?
Both the single GTD gas cylinder (Gas) and the single GTO oil cylinder (Hydraulic) use tie bar construction.