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Service Instructions
133893 Rev. C
January 2013
GTD Series Actuators

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Summary of Contents for Emerson Bettis GTD Series

  • Page 1 Service Instructions 133893 Rev. C January 2013 GTD Series Actuators...
  • Page 3: Table Of Contents

    Service Instructions Table of Contents 133893 Rev. C January 2013 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 Fluid Requirements ..................
  • Page 4: Section 1: Introduction

    Section 1: Introduction Service Instructions January 2013 133893 Rev. C 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 GTD01X0X, GTD2X0X, GTD3X0X, GTD4X0X, GTD5X0X, and GTD7X0X Double Acting Series Actuators.
  • Page 5: Definitions

    Service Instructions Section 1: Introduction January 2013 133893 Rev. C 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 provided to assist maintenance personnel to carry out maintenance procedures.
  • Page 6: Bettis Reference Materials

    Section 1: Introduction Service Instructions January 2013 133893 Rev. C 1�4 Bettis Reference Materials 1.4.1 Assembly Drawing for GTD01 through GTD7 Series Actuators use part number 133202. 1�5 Service Support Items 1.5.1 Bettis Service Kits. 1.5.2 Non-hardening thread sealant. 1�6 Lubrication Requirements 1.6.1 Bettis ESL-4, 5 &...
  • Page 7: Section 2: Actuator Disassembly

    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, that the actuator may contain a dangerous gas such as (Sour gas/H2S, Oxygen, Nitrogen, etc.) and/or liquids such as (Condense, Descalers, Petroleum bases, etc.).
  • Page 8: Gto Oil Cylinder Disassembly

    Section 2: Actuator Disassembly Service Instructions January 2013 133893 Rev. C 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) from stop screw (3-180). 2.2.4 Remove hex nuts (3-90), with lockwashers (3-95), from tie bars (3-20). 2.2.5 Remove outer end cap (3-80) from cylinder (3-70).
  • Page 9: Drive Module Disassembly

    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). 2.3.5 Remove hex nuts (7-90), with lockwashers (7-95), from tie bars (7-20). 2.3.6 Remove outer end cap (7-80) from cylinder (7-70) and tie bars (7-20).
  • Page 10 Section 2: Actuator Disassembly Service Instructions January 2013 133893 Rev. C 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 (1-160) with lockwashers (1-170) from yoke cover (1-150). 2.4.5 Remove yoke cover (1-150) from housing cover (1-20).
  • 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 removal as follows: 2.4.21.1 GTD01, GTD2 and GTD3 housing (1-10) unscrew and remove one vent check assembly (13) from the front of housing (1-10).
  • Page 12: Section 3: Actuator Reassembly

    Section 3: Actuator Reassembly Service Instructions January 2013 133893 Rev. C 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 actuator being refurbished.
  • 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). NOTE: The yoke bearing (2-40) must be press fit into housing (1-10) and housing cover (1-20). Install the yoke bearings with the bearing seam located 45°...
  • Page 14 Section 3: Actuator Reassembly Service Instructions January 2013 133893 Rev. C NOTE: On GTD7 model actuators apply thread adhesive, Locktite 242, to threads of hex cap screws (1-110). Reference assembly drawing note number seven. 3.2.17 Install hex cap screws (1-110) with lockwashers (1-115) through housing cover (1-20) and into housing (1-10).
  • Page 15: Gtd Gas Cylinder Reassembly

    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 indicator (1-140). 3.2.23 Install upper bearing (2-120) into yoke cover (1-150). 3.2.24 Install rod wiper (2-80) into yoke cover (1-150). 3.2.25 Install o-ring seal (2-70) into yoke cover (1-150).
  • Page 16 Section 3: Actuator Reassembly Service Instructions January 2013 133893 Rev. C 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 retainer ring (3-60). 3.3.6 Apply lubricant to the bore of cylinder (3-70). 3.3.7 Coat one piston bearing (4-45) with lubricant and install into the piston external bearing groove.
  • 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. 3.3.14 Install rod bushing (4-20) into inner end cap (3-10). 3.3.15 Install rod wiper (4-10) into inner end cap (3-10). 3.3.16 Install one o-ring seal (4-90) into inboard face of inner end cap (3-10).
  • Page 18 Section 3: Actuator Reassembly Service Instructions January 2013 133893 Rev. C 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 Remove outer end cap (3-80) from cylinder (3-70). and tie bars (3-20). 3.3.33 Lubricate stop screw (3-180) and install into the outer end cap (3-80).
  • Page 19: Gto Oil Cylinder Reassembly

    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 Installation. Reassemble the GTO oil cylinder on a work bench per the following steps and then install on the Drive Module per Section 4.
  • Page 20 Section 3: Actuator Reassembly Service Instructions January 2013 133893 Rev. C CAUTION: INSTALL PISTON SEAL CORRECTLY Install the piston seal with energizer ring facing outside edge of piston (7-30). 3.4.12 Refer to assembly drawing page 2 of 2 Detail "D". Coat Polypak seal (8-30) with hydraulic fluid and install, lip first, into inner end cap (7-10).
  • Page 21: Actuator Testing

    Service Instructions Section 3: Actuator Reassembly 133893 Rev. C January 2013 Table 4� Tie Bar Nuts (7-90) Torque Table TORQUE (±5%) TORQUE (±5%) Housing Housing Model Model FT-lb FT-lb GTD01 GTD7 GTD2 GTD8 GTD3 GTD10 1186 GTD4 GTD13 1367 1854 GTD5 3.4.25 Lubricate stop screw (7-180) and install into the outer end cap (7-80).
  • Page 22: Section 4: Module Removal And Installation

    Section 4: Module Removal and Installation Service Instructions January 2013 133893 Rev. C Section 4: Module Removal and Installation NOTE: The GTO oil cylinder is the only GTD actuator component that can be removed as a module. 4�1 GTO Oil Cylinder Removal CAUTION: CONTAIN HYDRAULIC FLUID Using some means to contain hydraulic fluid as the tubing (piping) is disconnect from the GTO outer end cap (7-80) and inner end cap (7-10).
  • Page 23: Gto Oil Cylinder Installation

    Service Instructions Section 4: Module Removal and Installation January 2013 133893 Rev. C 4�2 GTO Oil Cylinder Installation NOTE: Review section 3.1 General Reassembly before proceeding with GTO Hydraulic Power Module Installation. 4.2.1 The setting of stop screw (7-180) should be checked and setting recorded before stop screws are loosened or removed.
  • Page 24 Section 4: Module Removal and Installation Service Instructions January 2013 133893 Rev. C 4.2.8 Install lock washers (7-110) onto socket cap screws (7-115). 4.2.9 Install socket cap screws (7-115), with lockwashers (7-110), through inner end cap (7-10) and screw into housing (1-10). 4.2.10 Install lock washers (7-110) onto socket cap screws (7-100).
  • Page 25: Section 5: Actuator Support Information

    Service Instructions Section 5: Actuator Support Information January 2013 133893 Rev. C Section 5: Actuator Support Information 5�1 Weights By Item Number And Actuator Housing Size Table 6� Weights By Item Number And Actuator Housing Size ITEM GTD01 GTD2 GTD3 GTD4 GTD5 GTD7...
  • Page 26: Gtd01 Tool Style And Wrench Size

    Section 5: Actuator Support Information Service Instructions January 2013 133893 Rev. C 5�2 GTD01 Tool Style And Wrench Size Table 7� GTD01 Tool Style And Wrench Size WRENCH ITEM LOCATION OR RECOMMENDED ITEM NO� SIZE DESCRIPTION TOOL STYLE 1-110 9/16” Hex Cap Screws Socket 1-160...
  • Page 27: Gtd2 Tool Style And Wrench Size

    Service Instructions Section 5: Actuator Support Information January 2013 133893 Rev. C 5�3 GTD2 Tool Style and Wrench Size Table 8� GTD2 Tool Style and Wrench Size WRENCH ITEM LOCATION OR RECOMMENDED ITEM NO� SIZE DESCRIPTION TOOL STYLE 1-110 9/16” Hex Cap Screw Socket 1-160...
  • Page 28: Gtd3 Tool Style And Wrench Size

    Section 5: Actuator Support Information Service Instructions January 2013 133893 Rev. C 5�4 GTD3 Tool Style and Wrench Size Table 9� G3 Tool Style and Wrench Size WRENCH ITEM LOCATION OR RECOMMENDED ITEM NO� SIZE DESCRIPTION TOOL STYLE 1-110 9/16” Hex Cap Screw Socket 1-160...
  • Page 29: Gtd4 Tool Style And Wrench Size

    Service Instructions Section 5: Actuator Support Information January 2013 133893 Rev. C 5�5 GTD4 Tool Style And Wrench Size Table 10� GTD4 Tool Style and Wrench Size WRENCH ITEM LOCATION OR RECOMMENDED ITEM NO� SIZE DESCRIPTION TOOL STYLE 1-110 9/16” Hex Cap Screw Socket 1-160...
  • Page 30: Gtd5 Tool Style And Wrench Size

    Section 5: Actuator Support Information Service Instructions January 2013 133893 Rev. C 5�6 GTD5 Tool Style And Wrench Size Table 11� GTD5 Tool Style and Wrench Size WRENCH ITEM LOCATION OR RECOMMENDED ITEM NO� SIZE DESCRIPTION TOOL STYLE 1-110 3/4” Hex Cap Screw Socket 1-120...
  • Page 31: Gtd7 Tool Style And Wrench Size

    Service Instructions Section 5: Actuator Support Information January 2013 133893 Rev. C 5�7 GTD7 Tool Style and Wrench Size Table 12� GTD7 Tool Style and Wrench Size WRENCH ITEM LOCATION OR RECOMMENDED ITEM NO� SIZE DESCRIPTION TOOL STYLE 1-110 3/4” Hex Cap Screws Socket 1-120...
  • Page 32: Section 6: Document Revision

    Section 6: Document Revision Service Instructions January 2013 133893 Rev. C Section 6: Document Revision Table 13� Revision Overview DATE BY * DATE Released COMPILED C. Rico January 2013 Reviewed CHECKED A. Cruz January 2013 December 2012 Approved APPROVED K. Chin January 2013 * Signatures on file Bettis Actuator &...
  • Page 33: Appendix A: List Of Tables

    Service Instructions Appendix 133893 Rev. C January 2013 Appendix A: List of Tables Table 1. Housing Cover Screw Quantity and Torque ............11 Table 2. Piston Rod Assembly Torque Information ............14 Table 3. Tie Bar Nuts (3-90) ....................15 Table 4.
  • Page 34: Appendix B: List Of Drawings

    Appendix Service Instructions January 2013 133893 Rev. C 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 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.

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