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Service Instructions

133893 Rev. C

January 2013

6

Section 2: Actuator Disassembly

Actuator Disassembly

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).

2.3.7

Unscrew and remove tie bars (7-20) from inner end cap (7-10).

2.3.8

Remove the cylinder (7-70) from piston (7-30) and inner end cap (7-10).

2.3.9

Refer to assembly drawing page 2 of 2 Detail "E". Remove two split ring halves (7-
50) and one retainer ring (7-60) from outboard end of piston rod assembly (7-40).

2.3.10  Remove the piston (7-30) from piston rod assembly (7-40).
2.3.11  Remove the o-ring seal (8-70) from piston rod assembly (7-40).
2.3.12  Remove the remaining two split ring halves (7-50) and one retainer ring (7-60)

from piston rod assembly (7-40).

2.3.13 Remove socket cap screws (7-115) with lockwashers (7-110) from

inner end cap (7-10).

2.3.14 Refer to assembly drawing page 2 of 2 Detail "D". Remove hex nuts (7-105) from

socket cap screws (7-100).

2.3.15 Remove socket cap screws (7-100) with lockwashers (7-110) from

inner end cap (7-10).

2.3.16  Remove inner end cap (7-10) off of piston rod assembly (7-40).
2.3.17  Unscrew and remove piston rod assembly (7-40) from drive module.
2.3.18  It is not necessary to remove pipe plugs (7-210) from inner end cap (7-10) and

outer end cap (7-80) for normal or routine actuator service.

2�4

Drive Module Disassembly

NOTE:

Review Section 2 notes and steps 2.1.1 through 2.1.5 General Disassembly before proceed-
ing with Drive Module Disassembly.

2.4.1

If not already removed remove piston rod assemblies (3-40) and (7-40) from drive
module (1-10).

NOTE:

For steps 2.4.2 through 2.4.9 refer to assembly drawing page 2 of 2 Section A-A and Detail “A”.

2.4.2

Before removing position indicator (1-220), record or mark it's position. Remove
position indicator (1-220).

NOTE:

Step 2.4.3 is used only on GTD01, GTD2 and GTD3 Drive Modules. Drive Modules GTD4
and GTD5 will skip steps 2.4.3 and continue with step 2.4.4.

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Содержание Bettis GTD Series

Страница 1: ...Service Instructions 133893 Rev C January 2013 GTD Series Actuators ...

Страница 2: ......

Страница 3: ...y 6 Section 3 Actuator Reassembly 3 1 General Reassembly 9 3 2 Drive Module Reassembly 9 3 3 GTD Gas Cylinder Reassembly 12 3 4 GTO Oil Cylinder Reassembly 16 3 5 Actuator Testing 18 Section 4 Module Removal and Installation 4 1 GTO Oil Cylinder Removal 19 4 2 GTO Oil Cylinder Installation 20 Section 5 Actuator Support Information 5 1 Weights By Item Number And Actuator Housing Size 22 5 2 GTD01 T...

Страница 4: ... that will interfere with the actuator assemblies 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 sto...

Страница 5: ...Information Products supplied by Bettis in its as shipped condition are intrinsically safe if the instruc tions 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 f...

Страница 6: ...er than listed in step 1 6 1 should not be used without prior written approval of Bettis Product Engineering 1 7 Fluid Requirements 1 7 1 For use in the GTO Oil Cylinder use Dexron Automatic Transmission Fluid or as specified 1 7 2 This fluid is the recommended fluid only and does not limit the use of other hydraulic fluids compatible with supplied seals and coatings 1 8 General Tool Information 1...

Страница 7: ...or it can be removed from the Drive Module and disassembled separate to the actuator refer to Section 5 Module Cylinder Removal And Installation 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 2 1 4 Disconnect all hydraulic fluid lines to GTO oil cylinder outer end cap 7 80 and inn...

Страница 8: ... split ring halves 3 50 and one retainer ring 3 60 from piston rod assembly 3 40 2 2 14 Remove socket cap screws 3 115 with lockwashers 3 110 from inner end cap 3 10 2 2 15 Refer to assembly drawing page 2 of 2 Detail B Remove hex nuts 3 105 from socket cap screws 3 100 2 2 16 Remove socket cap screws 3 100 with lockwashers 3 110 from inner end cap 3 10 2 2 17 Remove inner end cap 3 10 off of pist...

Страница 9: ...5 with lockwashers 7 110 from inner end cap 7 10 2 3 14 Refer to assembly drawing page 2 of 2 Detail D Remove hex nuts 7 105 from socket cap screws 7 100 2 3 15 Remove socket cap screws 7 100 with lockwashers 7 110 from inner end cap 7 10 2 3 16 Remove inner end cap 7 10 off of piston rod assembly 7 40 2 3 17 Unscrew and remove piston rod assembly 7 40 from drive module 2 3 18 It is not necessary ...

Страница 10: ...p screws 1 120 Use these hex cap screws to jack the housing cover up for removal Alternately rotate the hex cap screw clockwise until housing cover 1 20 is clear of groove pins 1 130 NOTE GTD01 GTD2 GTD3 and GTD4 model housing cover 1 20 will have cast tabs for placing prying tools to aid in cover removal 2 4 12 Remove housing cover 1 20 from housing 1 10 NOTE Groove pins 1 130 will remain in hous...

Страница 11: ...s 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 2 4 21 2 GTD4 through GTD7 housing 1 10 unscrew and remove two vent check assemblies 13 from the front of housing 1 10 2 4 22 The following items do not need to be removed from their assembled locations unless being replaced by new items Two yoke bearings 2 40 yoke pin bearing a...

Страница 12: ...ing or flaking coating CAUTION CHECK PARTS FOR SIGNS OF WEAR Actuator parts that reflect any of the above listed characteristics should be replaced with new parts 3 1 4 Before installation coat all moving parts with a complete film of lubricant Coat all seals with a complete film of lubricant before installing into seal grooves NOTE The parts and seals used in the actuator drive module and GTD gas...

Страница 13: ...n guide block assembly 1 30 with the matching holes in the two yoke guide block bushings 2 30 and the slots in the arms of yoke 1 70 NOTE The yoke pin can be held in place by installing a screw into the 375 16UNC tapped hole in the upper end of yoke pin 1 80 3 2 9 Install yoke pin 1 80 by inserting into the upper yoke arm upper yoke guide block bushing guide block assembly lower yoke guide block b...

Страница 14: ...10 until a final lubricated torque as listed in the following table has been achieved Table 1 Housing Cover Screw Quantity and Torque Model Qty TORQUE 5 Model Qty TORQUE 5 FT lb N m FT lb N m GTD01 4 40 54 GTD7 8 100 136 GTD2 6 40 54 GTD8 12 100 136 GTD3 8 40 54 GTD10 16 100 136 GTD4 8 40 54 GTD13 20 340 461 GTD5 8 100 136 NOTE Complete step 3 2 20 on GTD5 through GTD7 model actuators For GTD01 th...

Страница 15: ...g 1 10 using pipe sealant install two vent check assemblies 13 into the front of housing 1 10 3 2 30 NOTE Refer to Section 2 step 2 4 2 for correct position indicator placement Install position indicator 1 220 over the exposed shaft of position indicator assembly 1 140 3 2 31 Install o ring seals 2 90 onto stop screw plugs 1 180 3 2 32 Install and tighten two stop screw plugs 1 180 into two stop s...

Страница 16: ... until the outboard piston seal groove is exposed NOTE To move the piston 3 30 through the bore of cylinder 3 70 may require mechanical assistance 3 3 11 Coat one piston seal 4 60 with lubricant and install into the piston external seal groove CAUTION INSTALL PISTON SEAL CORRECTLY Install the piston seal with energizer ring facing outside edge of piston 3 30 NOTE Step 3 3 12 is used only on GTD400...

Страница 17: ... located on the housing side of inner end cap 3 10 3 3 23 Using lifting equipment move the power module up to housing 1 10 and align piston rod assembly 3 40 with guide block assembly 1 30 3 3 24 Using a male square drive extension go through outer end cap 3 80 and screw piston rod assembly 3 40 into guide block assembly 1 30 WARNING DO NOT CROSS THREAD PISTON ROD ASSY When screwing piston rod ass...

Страница 18: ...osition as recorded in Section 2 step 2 2 1 3 3 36 Install outer end cap 3 80 over tie bars 3 20 and into open end of cylinder 3 70 3 3 37 Install lockwashers 3 95 onto tie bars 3 20 and up against outer end cap 3 80 3 3 38 Install hex nuts 3 90 onto tie bars 3 20 and up against lockwashers 3 95 3 3 39 Torque tighten hex nuts 3 90 until a final lubricated torque as listed in the following table ha...

Страница 19: ... 4 4 Install piston 7 30 onto piston rod assembly 7 40 and up against split rings installed in step 3 4 3 3 4 5 Install two split ring halves 7 50 into the outer most groove in piston rod assembly 7 40 and retain with one retainer ring 7 60 3 4 6 Apply fluid to the bore of cylinder 7 70 3 4 7 Coat one piston bearing 8 45 with fluid and install into the piston external seal groove 3 4 8 Install pis...

Страница 20: ...onto piston rod assembly 7 40 and into inboard end of cylinder 7 70 3 4 18 Install two tie bars 7 20 into inner end cap 7 10 NOTE The tie bars should be installed across from each other 3 4 19 Install one o ring seal 8 40 into inboard face of outer end cap 7 80 3 4 20 Install outer end cap 7 80 into open end of cylinder 7 70 NOTE The pressure inlet ports of the inner and outer end caps should be p...

Страница 21: ...hread sealant to two pipe plugs 7 210 and install into the ports of outer end cap 7 10 and inner end cap 7 80 3 4 31 For installation of the GTO oil cylinder onto Drive Module housing refer to Section 4 step 4 2 for GTO oil cylinder installation instructions 3 5 Actuator Testing 3 5 1 Leakage Test All sources of leakage to atmosphere and across pistons are to be checked using pneumatic pressure 3 ...

Страница 22: ... much of the hydraulic fluid as possible 4 1 2 The setting of stop screw 7 180 should be checked and setting recorded before stop screws are loosened or removed NOTE Stop screws will be removed later in this procedure 4 1 3 Loosen and back off jam nut 7 190 at least two rotations 4 1 4 Remove stop screw 7 180 from outer end cap 7 80 4 1 5 Using a male square drive extension go through outer end ca...

Страница 23: ... 7 10 4 2 5 Using lifting equipment move the oil cylinder up to housing 1 10 and align piston rod assembly 7 40 with guide block assembly 1 30 4 2 6 Using a male square drive extension go through the vacant stop screw hole located in outer end cap 7 80 and screw piston rod assembly 7 40 into guide block assembly 1 30 WARNING DO NOT CROSS THREAD PISTON ROD When connecting screwing piston rod assemb...

Страница 24: ...l and tighten hex nuts 7 105 onto socket cap screws 7 100 4 2 13 Lubricate stop screw 7 180 and install into the outer end cap 7 80 NOTE The stop screw is installed from the outboard side of the outer end cap 7 80 4 2 14 Verify that o ring seal 8 100 is installed on the stop screw 7 180 4 2 15 Install jam nut 7 190 onto the out board side of the stop screw 7 180 4 2 16 Adjust stop screw 7 180 per ...

Страница 25: ...ule Kg 22 7 24 9 N A N A N A N A 3 Lbs N A 65 85 N A N A N A 5 0 Dia GTD GTO Cylinder Module Kg N A 29 5 38 6 N A N A N A 3 Lbs N A N A 102 160 N A N A 6 0 Dia GTD GTO Cylinder Module Kg N A N A 46 3 72 6 N A N A 3 Lbs N A N A N A 190 N A N A 7 0 Dia GTD GTO Cylinder Module Kg N A N A N A 86 2 N A N A 3 Lbs N A N A N A 225 305 N A 8 0 Dia GTD GTO Cylinder Module Kg N A N A N A 102 1 138 4 N A 3 Lb...

Страница 26: ...3 100 5 16 4 Socket Cap Screws Allen 3 105 9 16 4 Standard Hex Nuts Open End Or Box end 3 115 5 16 4 Socket Cap Screws Allen 3 180 3 4 Sq 1 Stop Screw Assembly Open End or Adjustable 3 190 1 13 16 1 Heavy Hex Jam Nut Open End or Adjustable 3 210 7 16 Sq 2 Pipe Plug Open End or Adjustable 7 40 3 8 Sq 1 Piston Rod Assembly Male Drive 7 90 15 16 4 Standard Hex Nuts Socket 7 100 5 16 4 Socket Cap Scre...

Страница 27: ...00 5 16 4 Socket Cap Screws Allen 3 105 9 16 4 Standard Hex Nuts Open End Or Box end 3 115 5 16 4 Socket Cap Screws Allen 3 180 3 4 Sq 1 Stop Screw Assembly Open End or Adjustable 3 190 1 13 16 1 Heavy Hex Jam Nut Open End or Adjustable 3 210 7 16 Sq 2 Pipe Plug Open End or Adjustable 7 40 3 8 Sq 1 Piston Rod Assembly Male Drive 7 90 15 16 4 Standard Hex Nuts Socket 7 100 5 16 4 Socket Cap Screws ...

Страница 28: ...100 5 16 4 Socket Cap Screws Allen 3 105 9 16 4 Standard Hex Nuts Open End Or Box end 3 115 5 16 4 Socket Cap Screws Allen 3 180 3 4 1 Stop Screw Assembly Open End or Adjustable 3 190 1 13 16 1 Heavy Hex Jam Nut Open End or Adjustable 3 210 7 16 Sq 2 Pipe Plug Open End or Adjustable 7 40 3 8 Sq 1 Piston Rod Assembly Male Drive 7 90 1 1 8 6 Standard Hex Nuts Socket 7 100 5 16 4 Socket Cap Screws Al...

Страница 29: ...d Assembly Male Drive 3 90 1 5 16 6 Standard Hex Nuts Socket 3 100 3 8 4 Socket Cap Screws Allen 3 105 3 4 4 Standard Hex Nuts Open End Or Box end 3 115 3 8 4 Socket Cap Screws Allen 3 180 1 1 Stop Screw Assembly Open End or Adjustable 3 210 9 16 Sq 2 Pipe Plug Open End or Adjustable 7 40 3 8 Sq 1 Piston Rod Assembly Male Drive 7 90 1 5 16 6 Standard Hex Nuts Socket 7 100 3 8 4 Socket Cap Screws A...

Страница 30: ...n Rod Assembly Male Drive 3 90 1 1 2 6 Standard Hex Nuts Socket 3 100 3 8 8 Socket Cap Screws Allen 3 105 3 4 4 Standard Hex Nuts Open End Or Box end 3 115 3 8 4 Socket Cap Screws Allen 3 180 1 1 4 Sq 1 Stop Screw Asswmbly GTD5 Open End or Adjustable 3 210 9 16 Sq 4 O Ring Plug Open End or Adjustable 7 40 3 4Sq 1 Piston Rod Assembly Male Drive 7 90 1 1 2 6 Standard Hex Nuts Socket 7 100 3 8 8 Sock...

Страница 31: ...e 3 90 1 11 16 8 Standard Hex Nuts Socket 3 100 1 2 8 Socket Cap Screws Allen 3 105 15 16 8 Standard Hex Nuts Open End Or Box end 3 115 1 2 8 Socket Cap Screws Allen 3 180 1 1 2 Sq 1 Stop Screw Assembly Open End or Adjustable 3 210 9 16 Sq 2 Pipe Plug Open End or Adjustable 7 40 3 4 1 Piston Rod Assembly Male Drive 7 90 1 11 16 8 Standard Hex Nuts Socket 7 100 1 2 8 Socket Cap Screws Allen 7 105 1...

Страница 32: ...ment Revision Section 6 Document Revision Table 13 Revision Overview ECN DATE REV BY DATE Released December 2012 C COMPILED C Rico January 2013 Reviewed CHECKED A Cruz January 2013 Approved APPROVED K Chin January 2013 Signatures on file Bettis Actuator Controls Waller List of Tables ...

Страница 33: ...4 Tie Bar Nuts 7 90 18 Table 5 Piston Rod Assembly Torque Information 20 Table 6 Module Weights by Item Number and Actuator Housing Size 22 Table 7 GTD01 Tool Style and Wrench Size 23 Table 8 GTD2 Tool Style and Wrench Size 24 Table 9 GTD3 Tool Style and Wrench Size 25 Table 10 GTD4 Tool Style and Wrench Size 26 Table 11 GTD5 Tool Style and Wrench Size 27 Table 12 GTD7 Tool Style and Wrench Size 2...

Страница 34: ...Service Instructions 133893 Rev C January 2013 31 Appendix Appendix Appendix B List of Drawings B 1 Part No 133202 GTD Assy Dwg Sheet 1 of 2 ...

Страница 35: ...Service Instructions 133893 Rev C January 2013 32 Appendix Appendix B 2 Part No 133202 GTD Assy Dwg Sheet 2 of 2 ...

Страница 36: ......

Страница 37: ...ongmeadow Business Estate East P O Box 6908 Greenstone 1616 Modderfontein Extension 5 South Africa T 27 11 451 3700 EUROPE Holland Fasor 6 Székesfehérvár 8000 Hungary T 36 22 53 09 50 Strada Biffi 165 29017 Fiorenzuola d Arda PC Italy T 39 0523 944 411 www emerson com bettis 2018 Emerson All rights reserved The Emerson logo is a trademark and service mark of Emerson Electric Co BettisTM is a mark ...

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