Appendix I - 9H2-7-44-3 (F110 VSVA).pdf

T.O. 9H2-7-44-3

TECHNICAL MANUAL

OVERHAUL INSTRUCTIONS

WITH

ILLUSTRATED PARTS BREAKDOWN

VARIABLE STATOR ACTUATOR

(USED ON F110-GE-100 AND F110-GE-129 ENGINES)

PART NO. CONTROL DWG NO. ENGINE

1211335-006 1377M72P06 F110-GE-129

1211335-007 1377M72P07 F110-GE-100 AND F110-GE-129

1211335-009 1377M72P09 F110-GE-129

1211335-011 1377M72P11 F110-GE-100 AND F110-GE-129

1211335-014 1377M72P14 F110-GE-100 AND F110-GE-129

(ATOS)

(Arkwin Industries)

(GE Aircraft Engines)

F33657-84-C-2011

DISCLOSURE NOTICE: This information is furnished upon the condition that it will not be released to another nation without the specific authority of the Department of the Air Force of the United States, that it will be used for military purposes only, that individual or corporate rights originating in the information, whether patented or not, will be respected, that the recipient will report promptly to the United States, any known or suspected compromise, and that the information will be provided substantially the same degree of security afforded it by the Department of Defense of the United States. Also, regardless of any other markings on the document, it will not be downgraded or declassified without written approval of the originating United Sates agency.

DISTRIBUTION STATEMENT D: Distribution authorized to Department of Defense and U.S. DoD contractors only, Critical Technology, 15 January 2016. Refer other requests for this document to AFLCMC/LPSLB, Tinker AFB, Oklahoma 73145-3031.

WARNING: This document contains technical data whose export is restricted by the Arms Export Control Act (Title 22, U.S.C. 2751 et seq.) or the Export Administration Act of 1979, as amended, Title 50, U.S.C., App. 2401, et seq. Violation of these export-control laws is subject to severe criminal penalties. Dissemination of this document is controlled under DoD Directive 5230.25.

HANDLING AND DESTRUCTION NOTICE: Destroy by any method that will prevent disclosure of contents or reconstruction of the document.

Published under authority of the Secretary of the Air Force

1 JUNE 2000 CHANGE 10 - 15 JANUARY 2016

BASIC AND ALL CHANGES HAVE BEEN

MERGED TO MAKE THIS A COMPLETE

PUBLICATION

INSERT LATEST CHANGED PAGES. DESTROY SUPERSEDED PAGES.

LIST OF EFFECTIVE PAGES

NOTE: The portion of the text affected by the changes is indicated by a vertical line in the outer margins of the page. Changes to illustrations are indicated by shaded or screened areas, or by miniature pointing hands.

Dates of issue for original and changed pages are:

Original . . . . . . . . . . . . . . . . . . . . 0 . . . . . . . . . . . . . . . 1 June 2000 Change . . . . . . . . . . . . . . . . . . . . 1 . . . . . . . . . . . 1 October 2001 Change . . . . . . . . . . . . . . . . . . . . 2 . . . . . . . . 15 December 2001 Change . . . . . . . . . . . . . . . . . . . . 3 . . . . . . . . . . . . . . . .1 July 2003 Change . . . . . . . . . . . . . . . . . . . . 4 . . . . . . . . . . 31 January 2004 Change . . . . . . . . . . . . . . . . . . . . 5 . . . . . . . 15 September 2006

Change . . . . . . . . . . . . . . . . . . . . 6 . . . . . . . . . . . . 1 January 2011 Change . . . . . . . . . . . . . . . . . . . . 7 . . . . . . . . . . . . . 15 April 2011 Change . . . . . . . . . . . . . . . . . . . . 8 . . . . . . . . . . 1 February 2012 Change . . . . . . . . . . . . . . . . . . . . 9 . . . . . . . . . . 15 October 2013 Change . . . . . . . . . . . . . . . . . . . . 10 . . . . . . . . . . 15 January 2016

TOTAL NUMBER OF PAGES IN THIS MANUAL IS 74, CONSISTING OF THE FOLLOWING:

Page *Change Page *Change Page *Change No. No. No. No. No. No.

Title A i - vi vii - viii Deleted 1-1 - 1-3 1-4 Blank 2-1 2-2 - 2-4 2-5 2-6 Blank 3-1 3-2 - 3-3 3-4 Blank 4-1 4-2 Blank 5-1 - 5-2 5-3 - 5-4 5-5 - 5-6 5-7 - 5-9 5-10 5-11 - 5-14 5-15 Deleted 5-16 Blank Deleted 6-1 - 6-3 6-4 6-5 - 6-7 6-8 6-9 Deleted 6-10 Blank Deleted 7-1 7-2 - 7-5 7-6 - 7-7 7-8 7-9 - 7-13 7-14 - 7-15 7-16 Blank 8-1

8-2 Blank 9-1 9-2 9-3 9-4 - 9-5 9-6 9-7 9-8 Blank A-1 Added A-2 Blank

*Zero in this column indicates an original page

A Change 10 USAF

TABLE OF CONTENTS

Chapter Page Chapter Page

INTRODUCTION.......................................................iii

SAFETY SUMMARY.................................................v

1 GENERAL INFORMATION...................................1-1

1.1 GENERAL..................................................1-1

1.2 DESCRIPTION...........................................1-1

1.3 LEADING PARTICULARS ......................1-1

2 SPECIAL TOOLS, TEST EQUIPMENT,

AND CONSUMABLE MATERIALS ................2-1

2.1 GENERAL..................................................2-1

2.2 SPECIAL TOOLS AND TEST

EQUIPMENT.........................................2-1

2.3 CONSUMABLE MATERIALS.................2-1

3 DISASSEMBLY .......................................................3-1

3.1 GENERAL..................................................3-1

3.2 UNPACKING.............................................3-1

3.3 DISASSEMBLY.........................................3-1

4 CLEANING ..............................................................4-1

4.1 GENERAL..................................................4-1

4.2 DEMAGNETIZING STEEL

PARTS ...................................................4-1

4.3 CLEANING ................................................4-1

5 INSPECTION, REPAIR, AND RE-

PLACEMENT ......................................................5-1

5.1 GENERAL..................................................5-1

5.2 INSPECTION .............................................5-1

5.3 INTUMESCENT PAINT PRO-

CEDURES .............................................5-4

5.4 REPAIR ......................................................5-7

5.5 REPLACEMENT .......................................5-7

6 ASSEMBLY..............................................................6-1

6.1 GENERAL..................................................6-1

6.2 ASSEMBLY ...............................................6-1

7 TESTING ..................................................................7-1

7.1 GENERAL..................................................7-1

7.2 TESTING....................................................7-1

7.3 TROUBLESHOOTING............................7-15

7.4 PRESERVATION AFTER

TESTS..................................................7-15

7.5 FINAL ASSEMBLY ................................7-15

8 TABLE OF LIMITS.................................................8-1

8.1 LIMITS .......................................................8-1

8.2 TORQUE VALUES ...................................8-1

9 ILLUSTRATED PARTS BREAKDOWN...............9-1

9.1 GENERAL..................................................9-1

9.2 MAINTENANCE PARTS LIST................9-1

9.4 USEABLE ON CODE LIST .....................9-7

A UNIQUE IDENTIFICATION (UID) SUP-

PORTING INFORMATION ..............................A-1

A.1 IUID Supplemental Information ...............A-1

LIST OF ILLUSTRATIONS

Number Title Page Number Title Page

1-1 Variable Stator Actuator - Overall View....... 1-2 1-2 Variable Stator Actuator - Flow Dia-gram............................................................ 1-3 2-1 Special Tools and Test Equipment -

Overall View .............................................. 2-3 3-1 Connector - Wiring Diagram.......................... 3-3 5-1 Inspection - Limit Locations .......................... 5-4 5-2 Intumescent Paint Application - Mask-ing Locations.............................................. 5-6 5-3 Lee Plug - Removal and Installation ............. 5-9

5-4 Locally Manufactured Bearing Race Removal Tool........................................... 5-12

5-5 Bearing Assembly - Preparation for In-stallation ................................................... 5-13

5-6 Bearing Assembly - Swaging....................... 5-14 6-1 LVDT Wiring - Preparation for Assem-bly ............................................................... 6-2 6-2 Scraper, Preformed Packing, and Seals -

Installation in Gland................................... 6-3

Change 10 i

6-3 Connector Fiberglass Sleeve and Master Keyway - Installation and Orienta-tion Diagram............................................... 6-5

6-4 Final Shim Selection - Test Connec-tions ............................................................ 6-5

6-5 Stroke Check - Typical Test Setup ................ 6-8 7-1 Typical Setup - Test Connections .................. 7-2 7-2 Insulation Resistance Test Connections ......... 7-3 7-3 Dielectric Strength Test Connections............. 7-4 7-4 Break In - Test Connections .......................... 7-6

7-5 Friction Test - Test Connections.................... 7-8 7-6 Rod-Seal Leakage - Test Connections ........... 7-9 7-7 Piston Leakage and Cooling Flow -

Test Connections...................................... 7-10 7-8 Proof-Pressure - Test Connections ............... 7-12 7-9 LVDT Performance - Test Connections ..... 7-14 9-1 Variable Stator Actuator - Exploded

View ........................................................... 9-3 9-2 Housing Assembly - Exploded View............. 9-6 A-1 IUID Identification Plate Location................ A-1

LIST OF TABLES

Number Title Page Number Title Page

1-1 Leading Particulars............................................ 1-1 2-1 Special Tools and Test Equipment List ........... 2-1 2-2 Consumable Materials....................................... 2-4 5-1 Inspection .......................................................... 5-1 5-2 Nondestructive Inspection - Magnetic-

Particle .......................................................... 5-3

5-3 Expansion Plug Data......................................... 5-8 A-1 Item Unique Identification (IUID) Re-quired Information....................................... A-1 ii Change 10

INTRODUCTION

1. PURPOSE.

This technical manual provides information required for overhaul and testing of the variable stator actuator. The actuator is manufactured by Arkwin Industries Incorpo-rated, 686 Main Street, Westbury, NY 11590-5018, for use on GE aircraft engines. The variable stator actuator will be referred to as the actuator throughout this manual. All material in this manual applies to all actuators unless specified by part number.

2. SCOPE.

Chapter 1 through Chapter 8 of this manual provide over-haul and test procedures, and Chapter 9 contains an IPB. A table of contents provides chapter, paragraph title, and page number to help find information. A list of illustrations and a list of tables provide the number, title, and page number of illustrations and tables provided.

3. CHANGES TO THE TECHNICAL ORDER.

Recommendations for changes to this manual shall be submitted by an AFTO FORM 22, to AFLCMC/LPSLB, Tinker AFB, Oklahoma 73145-3031.

4. ABBREVIATIONS AND SYMBOLS.

Abbreviations and symbols used in this manual are in accordance with MIL-STD-12, Abbreviations for Use on Drawings, and in Specifications, Standards, and Technical Documents, except as follows:

AP Attaching part DMM Digital multimeter LVDT Linear voltage displacement transducer MP Matching part NSN National stock number PCR Publication change request PPH Pounds per hour PSID Pounds per square inch differential PSIG Pounds per square inch gage

REF Reference SMR Source, maintenance, and recoverabil-ity = Alternate part number & And °F Degrees Fahrenheit

5. LIST OF REFERENCED PUBLICATIONS.

Referenced publications are as follows:

List of Related Publications

Number Title

00-25-195 AF Technical Order System Source, Maintenance, and Recoverability Coding of Air Force Weapons, Systems, and Equipments

00-25-234 General Shop Practice Requirements for the Repair, Maintenance, and Test of Elec-trical Equipment

1-1-8 Application and Removal of Organic Coatings, Aerospace and Non-Aerospace Equipment

1-1-691 Aircraft Weapons System Cleaning and Corrosion Control

1TL32-6670-1 Fuel Accessory Test Stand

2J-1-13 Cleaning of Gas Turbine Aircraft Engines and Parts

33B-1-1 Nondestructive Inspection Methods

33D4-6-670-1 Fuel Accessory Test Stand

33D4-6-672-1 Electrical Accessory Test Stand

Change 10 iii

6. The following list of Time Compliance Technical Orders (TCTOs) affect the technical content of this manual.

Only current TCTOs are listed. A TCTO is deleted from this list when rescinded, superseded, or fully incorporated.

List of Time Compliance Technical Orders

TCTO TCTO TCTO

Number Title Date

None iv Change 10

SAFETY SUMMARY

1. DEFINITIONS.

The following definition apply to WARNINGS, CAU- TIONS, and NOTES found throughout this publication:

WARNING

An operating or maintenance procedure, prac-tice, condition, statement, etc., which, if not strictly observed, could result in injury to or death of personnel.

CAUTION

An operating or maintenance procedure, prac-tice, condition, statement, etc., which, if not strictly observed, could result in damage to or destruction of equipment or loss of mission effectiveness.

NOTE

An essential operating or maintenance proce-dure, condition, or statement which must be highlighted.

2. GENERAL PRECAUTIONS.

The following are general safety precautions that are not related to any specific procedure and therefore do not appear elsewhere in this publication. These are precautions that personnel shall understand and apply during the vari-ous phases of equipment operation and maintenance.

3. KEEP AWAY FROM LIVE CIRCUITS.

Operating personnel shall think safety at all times. Do not replace components or make adjustments inside equipment with the electrical supply turned ON. Under certain condi-tions, danger may exist even when power control is in the OFF position due to charges retained by capacitors. To avoid injuries, always remove power, discharge, and ground a circuit before touching. Adhere to all lock out/tag out requirements.

4. DO NOT WEAR JEWELRY.

Remove rings, watches, and other metallic objects which cause shock or burn hazards.

5. FINGER RINGS.

Snagged finger rings have caused many serious injuries.

Unless specifically allowed by shop safety procedures, remove finger rings during all maintenance activity.

6. DO NOT SERVICE OR ADJUST ALONE.

Do not attempt internal service or adjustment of equipment unless another person capable of rendering aid and resusci-tation is present.

7. RESUSCITATION.

Personnel working with or near dangerous voltage shall be trained in modern methods of resuscitation. Information and training sources may be obtained from the Director of Base Medical Services.

8. LUBRICATING OIL/FUEL.

Lubricating oil/fuel in liquid, vapor, or mist form is flam-mable, irritating to the skin and respiratory tract, and poisonous in the digestive tract. Remove saturated clothing, wash skin well, do not swallow liquid, and do not breathe mist and vapors.

9. COMPRESSED AIR.

When using compressed air for cleaning, cooling, or dry-ing, do not exceed 30 PSIG. Wear eye protection and do not direct compressed air at self or others. If additional air pressure is required to dislodge foreign materials from parts, ensure that approved safety equipment is worn. Be sure that the increased air pressure is not detrimental or damaging to the parts before applying high-pressured jets of air.

10. DANGEROUS PRESSURES.

Pressure system precautions apply to all ranges of pressure.

Care shall be taken during testing to ensure all test connec-tions are proper and tight before applying pressure to test setup; all system components shall be compatible with pressure applied. Personnel shall be protected by a safety shield or located at a distance sufficient to prevent injury.

Change 10 v

11. PERSONAL PROTECTIVE EQUIPMENT

(PPE).

Wear protective clothing/equipment (gloves, apron, eye protection, etc.) approved for the materials, procedures, and tools being used. Contact supervisor for guidance. If neces-sary, the Bioenvironmental Engineer or Base Safety Office should be contacted for guidance.

vi Change 10

CHAPTER 1

GENERAL INFORMATION

dirt free as it moves through the dual-stage seals. A cross-1.1 GENERAL.

piston bleed orifice provides for heat dissipation in the event of extreme environmental temperatures. The actuatorThis chapter provides description and leading particulars has a forged housing coated with intumescent paint tofor the actuator (Figure 1-1).

provide fire-resistant insulation. The 1377M72P06, P09, and P11 actuators have an LVDT and an adapter through1.2 DESCRIPTION.

which the LVDT wiring is brought to an integral connector.

The 1377M72P07 and P14 actuators do not contain anThe actuator is a fuel-operated actuator. The actuator LVDT, adapter, or connector.contains a single-end, uncushioned hydraulic cylinder driven in either direction by high-pressure fuel (Figure

1.3 LEADING PARTICULARS.1-2). Piston stroke is controlled by internal stops. The piston incorporates a sealed preformed packing to prevent The leading particulars for the actuator are listed in Tablecross-piston leakage. The rod-end of the actuator is pro- 1-1.tected against leakage by dual-stage sealed preformed packings. A scraper is provided to ensure the piston rod is

Table 1-1. Leading Particulars

Characteristics Specifications

Operating pressure 1480 PSIG maximum

Proof pressure 2235 PSIG

Air temperature range -65 to 343°F

Fuel temperature range -65 to 325°F

Cross-piston bleed rate 25-35 (PPH) at 100 PSID

Weight (1377M72P06, P09, and P11 actuators) 3.70 LB maximum

Weight (1377M72P07 and P14 actuators) 3.20 LB maximum

Overall dimensions (approximate):

Height (1377M72P06, P09, and P11) 4.75 inches

Height (1377M72P07 and P14 actuators) 3.30 inches

Width 2.40 inches

Length (retracted) 10.69 inches maximum

Length (extended) 13.854 inches maximum

Port threads:

Head port (MS33649-6) 0.5625-18 UNJF-3B

Rod port (MS33649-5) 0.5000-20 UNJF-3B

Drain port (MS33649-4) 0.4375-20 UNJF-3B

Piston internal thread 0.4375-20 UNJF-3B

1-1

Figure 1-1. Variable Stator Actuator - Overall View

1-2

Figure 1-2. Variable Stator Actuator - Flow Diagram

1-3/(1-4 blank)

CHAPTER 2

SPECIAL TOOLS, TEST EQUIPMENT, AND CONSUMABLE MATERIALS

2.1 GENERAL. 2.2 SPECIAL TOOLS AND TEST EQUIPMENT.

This chapter provides special tools, test equipment, and Special tools and test equipment required are listed in consumable materials required for actuator maintenance. Table 2-1 and illustrated in Figure 2-1.

Equivalent items may be used if the recommended tool, test equipment, or consumable is not available. 2.3 CONSUMABLE MATERIALS.

Consumable materials are listed in Table 2-2.

Table 2-1. Special Tools and Test Equipment List

Tool/equipment Figure 2-1 index number number Nomenclature Use and application

200001 Oven, LST Repair

3C3793G01 Overhaul tool set, consisting of the following items:

T3222-01 1 Stroke setting fixture Assembly/Testing

(3C3793P04)

T3222-02 2 Test fixture Assembly/Testing

(3C3793P05)

* VTA00340 Rod bearing (CAGE 06710)

* NAS509-7 Nut (CAGE 96906)

T3222-05 3 Seal installation and Assembly

(3C3793P03) sizing tool

T3222-07 4 Gland sizing ring Assembly

(3C3793P06)

T3222-08 5 Piston sizing ring Assembly

(3C3793P07)

T3222-09 6 Soldering and Lee plug fixture Disassembly/

(3C3793P08) Repair/Assembly

T3222-10 7 Lee plug fixture Disassembly/

(3C3793P09) Repair/Assembly

3C3960G05 Electrical accessory test stand (refer to Testing

TO 33D4-6-672-1)

3C3970G05 Fuel accessory test stand (refer to TO Testing 33D4-6-670-1)

3C3970G05-OC00 Fuel accessory test stand (refer to Testing

1TL32-6670-1 )

Change 8 2-1

Table 2-1. Special Tools and Test Equipment List - Continued

Tool/equipment Figure 2-1 index number number Nomenclature Use and application

655AB Digital multimeter Assembly

760GA Power supply Assembly

GFF Micrometer - Inside, 1-2 in Inspection

GFE Micrometer - Caliper, 0-1 in Inspection

GFE Micrometer - Outside, 0-1 in Inspection

GFE Micrometer - Outside, 1-2 in Inspection

HG-751A-20 Heat gun Assembly

Locally Mfg ** Bearing race removal tool Disassembly

QJ1178 Torque wrench, 1/4 in drive, 0-150 in Inspection lb

RFL No. 1890 Gaussmeter Inspection

ST10832 *** Roller swaging tool Assembly

T 2649-2 **** Bearing race installation tool Assembly

*Not part of tool, but required for tool use.

**See Figure 5-4

***See Figure 5-6

****See Figure 5-5

2-2

Figure 2-1. Special Tools and Test Equipment - Overall View (Sheet 1 of 2)

2-3

Figure 2-1. Special Tools and Test Equipment - Overall View (Sheet 2)

Table 2-2. Consumable Materials

Specification or part Nomenclature number CAGE General use Acetone O-A-51 Cleaning

Alcohol, denatured O-E-760 Assembly

Bag, plastic PPP-B-26 Storage

Beads, ABR MIL-G-9954A Repair

Brush, paint MIL-B-15319 Repair

Brush, paint, soft-bristle H-B-491 Cleaning

Cloth, abrasive P-C-458 Repair

Cloth, cleaning CCC-C-46 Cleaning

Coating, chemical No. 1200 MIL-C-81706 Repair

Compound, potting Sympoxy 1960 8Y423 Assembly

Filter, 10 micron Commercial Testing

Fluid, calibrating MIL-C-7024, Type II Testing

Flux MIL-F-14256 Type MAP Assembly

Lacquer, clear TT-L-50 Repair

Nitrogen BB-N-411 Assembly

2-4

Table 2-2. Consumable Materials - Continued

Specification or part Nomenclature number CAGE General use Oil, lubricating MIL-L-6081 Grade 1010 Preservation

Paint, intumescent 1600BTX 63262 Repair

Petrolatum VV-P-236 Assembly

Primer, zinc molybdate TT-P-645 Repair

Rod, nylon L-P-410A Disassembly

Sleeving, fiberglass PIF 240-10 92194 Assembly

Solder AR100, Sn10WRMAP or Assembly Sb5WRMAP

Solvent, drycleaning P-D-680, Type II, or Type III Cleaning

Stone, oil SS-S-736 Repair

Talc U-T-30 Testing

Tape, masking MIL-T-21595 Repair

Thinner, lacquer TT-T-266 Repair

Tubing, shrink M23053/11-112-O Assembly

Tubing, shrink M23053/11-106-C Assembly

Wire, safety MS20995N20 Assembly

Wire, safety MS20995C32 Assembly

Wrap, tie Commercial Repair

Change 4 2-5/(2-6 blank)

CHAPTER 3

DISASSEMBLY

3.1 GENERAL.

WARNING

This chapter provides unpacking and disassembly proce-dures for the actuator. Determine the extent of disassembly • Fuel, MIL-T-5624, is flammable and toxicrequired by preliminary visual inspection, and by perform-to skin, eyes, and respiratory tract. Skin anding tests (Chapter 7). No part shall be disassembled unless eye protection is required. Avoid repeated orreplacement or servicing is required, or removal is required prolonged contact. Use in a well-ventilatedto gain access to other parts requiring replacement or area.servicing. All steps apply unless specified by part number.

Check for the presence of the Unique Item Identifier (UII) • Lubricating oil, MIL-L-6081, is toxic to marking on the identification plate. Reference paragraph skin, eyes, and respiratory tract. Skin and 5.2.a.(5) for instructions on reading and/or replacement of eye protection is required. Avoid repeated or the UII. prolonged contact. Use in a well-ventilated area.

3.2 UNPACKING.

(1) Remove protective caps (37, 38, and 39, Figure 9-1) from actuator.No special instructions are required for unpacking the actuator. Save and store all packing material for reuse for

(2) Install actuator in T3222-09 soldering and Leeshipment or storage purposes.

plug fixture.

3.3 DISASSEMBLY. (3) Cut and remove safety wire at connector (1).

Remove four screws (2).

The disassembly procedures are described in detail unless self-evident upon inspection. Figure 9-1 shall be used as a reference for removal of actuator components. Disassemble CAUTION the actuator as follows:

Care shall be used when removing connector CAUTION (1) from adapter assembly (22). Failure to comply may result in damage to wires.

Do not allow any parts to come in contact with (4) Remove connector (1) from adapter assembly dirt or grit after they have been removed. Dirt (22).

and grit can damage parts and affect functional integrity of actuator. (5) Scrape potting compound, Sympoxy 1960, from cavity of adapter assembly (22) to free LVDT

(27) wiring, using a nylon rod, L-P-410A.NOTE

(6) Move fiberglass sleeving, PIF 240-10, out of• Preformed packings and seals removed dur-final position to expose wires. Remove shrinking disassembly shall be discarded.

tubing, M23053/11-106-C, from connector pin

• Bearing ball (2, Figure 9-2) can be retained, wires.

using tie wrap or equivalent.

(7) Unsolder wires (TO 00-25-234) from connector

a. Disconnecting Adapter Assembly from LVDT. For (1). Note orientation of connector wires

1377M72P06, P09 and P11 actuators, proceed as (Figure 3-1).

follows:

Change 6 3-1

(8) Remove preformed packing (3, Figure 9-1) from (2) Carefully slide adapter assembly (22) off LVDT connector (1). (27) wires.

(9) Remove fiberglass sleeving, PIF 240-10, and (3) Remove preformed packing (25) from groove of shrink tubing, M23053/11-112-0, from LVDT adapter assembly (22).

(27) wires.

d. LVDT Removal. For 1377M72P06, P09 and P11

(10) If plug (4) leaks, remove plug (5.5). actuators, proceed as follows:

b. Gland and Piston Removal. Proceed as follows: (1) Remove plug (26) (5.5).

(1) For 1377M72P06, P07, and P09 actuators, cut CAUTIONand remove safety wire. Remove four bolts (6) and four washers (8).

The LVDT (27) and stem (30) are a matched(2) For 1377M72P11 actuators, cut and remove set. The LVDT and stem shall be kept together.safety wire. Remove three bolts (6) and three Use of mismatched components will causewashers (9). Remove stud bolt (7) and washer faulty operation of LVDT.(9).

(2) Remove threaded stem (30) from piston (10).(3) For 1377M72P14 actuators, cut and remove safety wire. Remove four bolts (6) and four

(3) Remove shim (31) from stem (30).washers (9).

NOTE(4) Carefully slide gland (5) off piston (10) and remove gland from housing assembly (36).

Adapter assembly (22) shall be removed before

(5) Remove piston (10) from housing assembly LVDT (27) is removed.

(36).

(4) For 1377M72P06 actuator, remove three screws

(6) Remove seal (11) and preformed packings (12 (28).

and 13) from outer diameter of gland (5).

(5) For 1377M72P09 and P11 actuators, remove

(7) Remove two seals (14) and preformed packings three screws (29).

(15 and 16) from inner diameter of gland (5).

(6) Pull LVDT (27) through housing assembly (36).

(8) Remove scraper (17) from, inner diameter of gland (5). (7) Remove preformed packings (32 and 33) from outer diameter of LVDT (27).

(9) Remove seal (18) and preformed packing (19) from outer diameter of piston (10). (8) Install stem (30) in matching LVDT (27).

c. Adapter Assembly Removal. For 1377M72P06, P09 and P11 actuators, proceed as follows:

(1) Cut and remove safety wire. Remove four screws (20) and four washers (21).

CAUTION

Care shall be used when removing adapter assembly (22). Failure to comply may result in damage to wires.

3-2

Figure 3-1. Connector - Wiring Diagram

3-3/(3-4 blank)

CHAPTER 4

CLEANING

a. Blow out all dirt from inside of housing assembly4.1 GENERAL.

(36, Figure 9-1), using dry, compressed air.

This chapter provides cleaning procedures for the actuator.

b. Perform general cleaning (TO 2J-1-13).All dust, dirt, corrosion, and moisture shall be removed before inspecting or assembling parts. All steps apply unless specified by part number. WARNING

4.2 DEMAGNETIZING STEEL PARTS.

Drycleaning solvent, P-D-680, Type II, is flam-mable and toxic to skin, eyes, and respiratory

CAUTION tract. Skin, eye, and respiratory protection is required. Avoid repeated or prolonged contact.

The LVDT (27, Figure 9-1) or stem (30) shall not be demagnetized. Failure to comply may CAUTION result in damage to LVDT or stem.

A stiff-bristle brush or similar device shall notDemagnetize all steel parts of the actuator before cleaning.

be used to clean finely machined surfaces.Proceed as follows:

Failure to comply may result in scratching of

a. Check steel parts for residual magnetism, using a surface.

20 GAUSS field strength meter. Residual magnet-

c. Wash metal parts, using drycleaning solvent, P-D-ism for any part shall not exceed 5 GAUSS. If 680, Type II, or Type III. A soft-bristle paint brush,residual magnetism is greater than 5 GAUSS, per- H-B-491, may be used.form step b.

b. Demagnetize steel part, using a degaussing coil.

CAUTION

c. Perform step a. Reject the part if residual magnet-ism exceeds 5 GAUSS.

For 1377M72P06, P09, and P11 actuators, elec-trical components shall not be soaked in drycle-4.3 CLEANING.

aning solvent, P-D-680. Failure to comply may result in damage to components.Clean as follows:

d. For 1377M72P06, P09, and P11 actuators, clean electrical components by wiping using cleaningWARNING cloth, CCC-C-46, saturated with drycleaning sol-vent, P-D-680, type II, or type III.

When using compressed air for cleaning cool-

e. Dry thoroughly, using dry, filtered, compressed air.ing, or drying, do not exceed 30 PSIG. Wear eye protection arid do not direct compressed air at self or others.

4-1/(4-2 blank)

CHAPTER 5

INSPECTION, REPAIR, AND REPLACEMENT

(4) Inspect preformed packing grooves and lands5.1 GENERAL.

for nicks and burrs that may damage packings or cause leakage.This chapter provides procedures for inspection, repair, and replacement of worn, damaged, or defective parts. Exces-

(5) IUID- Visually inspect the identificationsive wear is defined as any obvious deformation or deterio-plate/item for the Unique Item Identifier (UII)ration of parts that may render the actuator inoperative. If marking. If present, visually inspect for damageany doubt exists concerning the serviceability of a part, to the symbol. Ensure readability by using hand-replace the part. All steps apply unless specified by part held electronic reader (Ref: T.O. 00-25-260). Ifnumber.

symbol is not present or if damaged mark/restore IAW Drawing 200945069-201 and

5.2 INSPECTION. Appendix A of this book and reference T.O. 00- 25-260 and MIL-STD-130.

Inspect parts listed in Table 5-1. Perform visual inspection before dimensional or nondestructive inspection. Parts that b. Dimensional Inspection. Perform dimensional are obviously damaged shall be rejected. inspection (Table 5-1).

a. Visual Inspection. Refer to Table 5-1. Use a bright NOTElight during visual inspection. Proceed as follows:

Nondestructive inspection is required only for(1) Inspect parts for cracks.

parts indicated in Table 5-1.

(2) Inspect threaded parts for stripped, crossed, or

c. Nondestructive Inspection (NDI). Perform mag-otherwise damaged threads.

netic-particle inspection (Table 5-2) (MIL-STD-

(3) Inspect threaded inserts for looseness or damage 1949 and TO 33B-1-1). Demagnetize acceptable to threads. parts and clean (Chapter 4).

Table 5-1. Inspection

Part (figure & index Type of inspec-number) tion Inspect for Corrective action

Visual Bent, broken, or damaged pins Straighten bent pins. Re-Connector (1, Figure 9-1) place connector if pins are broken or damaged

Visual Damaged threads shall not exceed 50 Repair damaged threads ( percent of one entrance thread or 5.4), or replace connector more than 10 percent of two entrance threads

Plugs (4 and 26) Visual Leakage Replace plug ( 5.5)

Gland (5) Visual Bore for nicks and cracks. None al- Replace gland lowed.

Dimensional ID wear limit of 0.815 inch maxi- Replace gland mum (1, Figure 5-1)

Visual Cracks, nicks, scratches shall not be Replace cracked gland.

present in base metal. Chipped or Repair gland external missing paint shall not exceed 0.5 painted surface ( 5.3) square inch in any one area or 1 square inch for total actuator

Change 6 5-1

Table 5-1. Inspection - Continued

Part (figure & index Type of inspec-number) tion Inspect for Corrective action

Visual Damaged threads shall not exceed 50 Repair damaged threads ( percent of one entrance thread or 5.4), or replace gland more than 10 percent of two entrance threads

Piston (10) Visual Obstruction in cooling flow hole Remove obstruction

Dimensional Piston shaft OD wear limit of 0.807 Replace piston inch minimum (2, Figure 5-1)

Dimensional Piston head OD wear limit of 1.988 Replace piston inches minimum (3, Figure 5-1)

Nondestructive Cracks in chrome plating ( Replace piston /Magnetic-particle Table 5-2)

Adapter assembly (22) Visual Cracks, nicks, scratches on external Replace cracked adapter painted surface. Nicks or scratches assembly. Repair adapter shall not be present in base metal. assembly external paint- Chipped or missing paint shall not ed surface 5.3) exceed 0.5 square inch in any one area or 1 square inch total area

Insert (24) Visual Damaged threads shall not exceed 50 Replace inserts ( 5.5) percent of one entrance thread or more than 10 percent of two entrance threads

LVDT (27) Visual Damaged LVDT cable wires Replace LVDT and stem (30)

Stem (30) Visual Bent or damaged. Check to ensure Replace LVDT (27) stem (30) moves and stem freely in

LVDT (27)

Nameplates (34 and 35) Visual Legibility and Machine Readable UII Replace nameplate ( 5.5) Reference paragraph 5.2.a.(5) for instructions on reading and/or replacement of the UII.

Housing assembly (36) Visual Cracks, nicks, scratches shall not be Replace cracked housing.

present in base metal. Chipped or After assembly, repair missing paint shall not exceed 0.5 housing assembly exter-square inch in any one area or 1 nal painted surface ( 5.3) square inch total are

Dimensional Housing assembly bore ID wear limit Replace housing assem-of 1.995 inches maximum (4, bly Figure 5-1)

Visual Nicks, dents, cracks and wear in bore Replace housing assem-area. None allowed bly

5-2 Change 6

Table 5-1. Inspection - Continued

Part (figure & index Type of inspec-number) tion Inspect for Corrective action

Visual Damaged threads shall not exceed 50 Repair damaged threads percent of one entrance thread or (5.4), or replace housing more than 10 percent of two entrance assembly threads

Dimensional Housing bearing bore ID wear limit Replace housing of 0.9995 inch maximum only if bearing race is removed (7, Figure 5-1)

Bearing assembly (1 and 2, Visual Looseness of bearing race in housing. Replace bearing assem- Figure 9-2) None allowed bly (5.5h)

Visual Binding due to spalling or chipping Replace bearing assem-of spherical surface of bearing race is bly (5.5h) not allowed. No cracks allowed.

Visual Scratches and pits any amount that Replace bearing assem-cannot be felt with a 0.045 inch radi- bly (5.5h) us scribe. Any amount permitted within 0.100 inch of edge if ball moves freely.

Visual Rust and corrosion Replace bearing assem- Not serviceable bly (5.5h)

Dimensional ID of race wear limit of 0.8780 inch Replace bearing assem-maximum (6, Figure 5-1) bly (5.5h)

Bearing ball (2, Figure 9-2) Visual Binding or looseness due to damage Replace bearing ball to spherical surface of ball. None al- (5.5c) lowed

Dimensional ID of ball wear limit of 0.5010 inch Replace bearing ball maximum (5.5c)

Dimensional OD of ball less than 0.8715 inch or Replace bearing ball more than 0.005 inch smaller than (5.5c) bearing race ID

Inserts (3, 4, and 5) Visual Damaged threads shall not exceed 50 Replace inserts (5.5) percent of one entrance thread or more than 10 percent of two entrance threads

Plugs (6 and 7) Visual Leakage. None allowed Replace plug (5.5)

Table 5-2. Nondestructive Inspection - Magnetic-Particle

Part and index number (Figure 9-1) Contacts 5-turn coil Piston (10) 500 AMPERES DC 656.1-801.9 AMPERES DC

800 AMPERES DC 841.5-1028.5 AMPERES DC

1000 AMPERES DC 2070.0-2530.0 AMPERES DC

Change 3 5-3

Figure 5-1. Inspection - Limit Locations

(3) Inspect actuator (Table 5-1).5.3 INTUMESCENT PAINT PROCEDURES.

b. Steam Scraping. For complete paint removal, pro-Intumescent paint procedures may be used for either touch-ceed as follows:up or complete paint replacement depending on the degree of paint deterioration. No paint repair is required if missing (1) Install protective caps (37, 38, and 39). Mask paint (after removal of loose paint) does not exceed 0.5 bearing (1, Figure 9-2) and piston (10, square inch in any one area or 1 square inch of total area. Figure 9-1) rod, using masking tape, MIL-T- Paint removal and application may be performed on the 21595.

actuator assembly or on subassembly pieces as required, provided adequate masking is performed. Remove intumes-cent paint from actuator by one of the following methods: WARNING

a. Scraping. For touch-up paint removal, proceed as follows: Liquid is hot and can cause severe burns. Skin and eye protection is required to prevent injury

(1) Install protective caps (37, 38, and 39, from splash burns.

Figure 9-1). Mask bearing (1, Figure 9-2) and piston (10, Figure 9-1) rod, using masking tape, (2) Suspend actuator in steam over a boiling water MIL-T-21595. bath for 10 minutes to loosen and soften paint before scraping.

CAUTION (3) Carefully remove intumescent paint from actua-tor, using a razor scraping tool or equivalent.

When removing intumescent paint from actua- (4) Inspect housing assembly (34) (Table 5-1).

tor, unpainted surfaces may be damaged.

Extreme care shall be used to avoid damage to c. Intumescent Paint Preparation and Application.

surface under paint. Proceed as follows:

(2) Carefully remove top coats of intumescent paint (1) Install protective caps (37, 38, and 39).

from actuator, using a razor scraping tool or equivalent.

5-4 Change 3

(6) Apply chemical film conversion coating, MIL-

C-81706 (TO 1-1-691).

WARNING

(7) Clean housing assembly (36) and gland (5), using lacquer thinner, TT-T-266, and cleaning Paints, primers, and thinner are flammable and cloth, CCC-C-46. Allow housing assembly to toxic to skin, eyes, and respiratory track. Skin dry for 15-30 minutes.

and eye protection is required. Use in a well-ventilated area. For spray applications, respira- (8) Apply primer, TT-P-645, (TO 1-1-8) as follows:

tory protection is required.

(a) Allow primer to set 30 minutes before using.

(2) Clean housing assembly (36) and gland (5), using lacquer thinner, TT-T-266, and cleaning (b) Apply 0.006-0.009 inch of primer, TT-P-645.

cloth, CCC-C-46.

(c) Cure at room temperature for 24 hours.

(3) Mask the following items (Figure 5-2), using

(9) Apply intumescent paint, 1600BTX, as follows:masking tape, MIL-T-21595.

(a) For small areas, a paint brush, MIL-B-15319,(a) Nameplate and port markings may be used.

(b) Piston rod and gland face

(b) Ambient temperature shall be 60 to 80°F

(c) Boltheads and washers when applying intumescent paint, 1600BTX.

(d) Actuator gland to housing assembly parting (c) Pot life of intumescent paint, 1600BTX, is 1 line hour. Additional mixing is required for third coat.

(e) Bearing assembly head end mounting lug

(d) Spray 3-4 thin coats to achieve a total dry

(f) Bearing assembly thickness of 0.020-0.040 inch. Wait 45 min-utes between spray coats.

(g) For 1377M72P06, P09, and P11 actuators adapter assembly (10) Cure painted actuators, using one of the follow-ing methods:

WARNING

NOTE

Preferred curing method is to air cure top coatBlasting operations can produce airborne parti-at room temperature for 2-3 days.cles that are harmful to skin, eyes, and respira-tory tract. Skin, eye, and respiratory protection

(a) Air cure paint at room temperature for 2-3is required.

days.

(4) Grit blast down to grey metal, using ABR beads, 1 Remove masking tape, MIL-T-21595,MIL-G-9954A, size 13.

before paint fully cures or tape will be difficult to remove.(5) Clean housing assembly (36) and gland (5), using lacquer thinner, TT-T-266, and cleaning 2 If time constraints prevent 2-3 day curing,cloth, CCC-C-46.

proceed to step (b) for alternate curing method.

WARNING

(b) Cure paint at room temperature for 3 hours minimum or until dry to touch, then proceed Chemical coating material, MIL-C-81706 or as follows:

MIL-C-5541, is highly toxic to skin, eyes, and

1 Remove masking tape, MIL-T-21595,respiratory tract. Skin and eye protection, and before paint fully cures or tape will bevapor control are required. Avoid all contact.

difficult to remove.

Change 4 5-5

Figure 5-2. Intumescent Paint Application - Masking Locations

5-6 Change 4

b. Repair minor damage, such as nicks or scratches, to external surfaces, using oil stone, SS-S-736, WARNING followed by polishing reworked areas with abra-sive cloth, P-C-458. Clean parts thoroughly to remove any contaminant left from the blending orWear insulated gloves to prevent injury when polishing operations (Chapter 4).handling hot parts.

2 Place actuator in oven for 4 hours at 120 CAUTION to 130°F.

3 Remove actuator from oven and allow to To avoid damage, a tap shall not be used on cool to room temperature. threaded insert areas.

(11) Inspect paint as follows: c. Repair thread damage by chasing with correct size tap or die. Blend damaged area into undamaged(a) Sags and runs in paint up to 0.090 inch thick thread, using oil stone, SS-S-736. Clean parts thor-above painted surface are acceptable up to oughly following rework (Chapter 4).0.50 inch wide by 2.50 inches long or 1.25 square inches total.

5.5 REPLACEMENT.

(b) Drips are acceptable on painted surfaces of Replace all parts that do not meet inspection and limitport bosses up to 0.187 inch diameter by requirements (Table 5-1 and Table 5-2). Replacement pro-0.125 inch thick above painted surface.

cedures are as follows:

(c) Color variations and surface discontinuity are

a. Replace nonmetallic parts, except for the LVDTacceptable when touch-up of existing paint is

(27, Figure 9-1), and stem (30), at each disassem-performed. Missing paint up to 1 square inch bly, regardless of condition.total on the actuator is permissable.

b. Replace housing assembly (36) if damaged beyond5.4 REPAIR.

minor repair.

Repair of actuator parts is limited to removal of minor c. Replace damaged bearing ball (2, Figure 9-2) as nicks and burrs on actuator and touch-up of protected follows:

surfaces. Replace damaged parts, as required (5.5).

(1) Align bearing ball (2) with bearing removal slot of race.

WARNING

(2) Press damaged bearing ball (2) from race.

Chemical coating material, MIL-C-81706, is (3) Align new bearing ball (2) with removal slot of highly toxic to skin, eyes, and respiratory tract. race.

Skin and eye protection, and vapor control are required. Avoid all contact. (4) Install bearing ball (2) into race.

CAUTION WARNING

Chemical film conversion coating, MIL-C- Paints, primers, and thinners are flammable and 81706, shall not be allowed to touch hard- toxic to skin, eyes, and respiratory tract. Skin coated surface in bore of housing assembly (36, and eye protection is required. Use in a well- Figure 9-1) and gland (5). Failure to comply ventilated area. For spray applications, respira-may cause hard coat to be destroyed. tory protection is also required.

a. Repair minor damage to unpainted surfaces of d. Replace damaged inserts (3, 4, and 5) in housing housing assembly (36), gland (5), or adapter assembly (36, Figure 9-1) or insert (24) in adapter assembly (22), such as external nicks or scratches, assembly (22). Before installation of insert, apply by blending and then touching up with chemical primer, MIL-P-23377.

film conversion coating, MIL-C-81706. Replace severely scored parts.

5-7

T3222-10 Lee plug fixture. Install plug (4, Figure 9-1) and plug (7, Figure 9-2), using T3222-09NOTE soldering and Lee plug fixture. Install plugs as follows:Actuators 1377M72P07 and P14 do not contain plugs (4 and 26).

(1) Ensure hole and OD of Lee plug are clean and dry.e. For 1377M72P06, P09, and P11, actuators, remove plugs (26) and (6, Figure 9-2), using T3222-10 Lee plug fixture. Remove plugs (4, Figure 9-1) and (7, CAUTIONFigure 9-2), using T3222-09 soldering and Lee plug fixture. Remove plugs as follows:

Plug shall be firmly inserted against shoulder of

(1) Drill and tap a hole in pin (Figure 5-3). Ensure hole. If plug is not seated, plug may slide correct drill size, depth, and tap size for expan- forward while driving pin in and scratch hole.

sion plug (Table 5-3).

(2) Insert plug in hole until firmly seated against

(2) Extract pin, using a long bolt and striker bush- shoulder of hole (Figure 5-3).

ing (Figure 5-3).

NOTE(3) Tap plug (Table 5-3).

(4) Extract plug, using a long bolt and striker bush- Pins are prewaxed. Additional lubrication shall ing (Figure 5-3). not be used.

(5) Inspect plug hole for damage. Dimensionally (3) Insert tapered pin, small end first, in plug.

inspect (Table 5-3). Surface finish of hole shall Avoid tilting pin.

be about 32-63 microinch circular lay with no

(4) Firmly support item to be plugged.longitudinal scratch marks.

(5) Drive tapered pin in plug until exposed end isf. For 1377M72P06, P09, and P11 actuators, install flush with plug, using a vented punch or press.plugs (26, Figure 9-1) and (6, Figure 9-2), using

Table 5-3. Expansion Plug Data

Drill depth (inch Hole diam- Index number Drill size max) Pin tap Plug tap eter (inch) (4, Figure 9-1) 57 0.062 1.4 by 0.3 0.073-64 0.0942-

(metric) 0.0962

(26) 22 0.216 0.190-32 0.3125-24 0.3442- 0.3462

(6, Figure 9-2) 51 0.078 0.086-56 0.138-40 0.1567- 0.1587

(7) 57 0.062 1.4 by 0.3 0.073-64 0.0942- (metric) 0.0962

5-8

Figure 5-3. Lee Plug - Removal and Installation

5-9

g. Replace damaged or illegible nameplate (34 or 35, Figure 9-1) as follows: CAUTION

(1) Peel off old nameplate (34 or 35). A sharp tool may be used to lift edges loose. If nameplate has To prevent contamination, use protective cov-coating around edges, cut through coating, using ers or masking tape, MIL-T-21595, on actuator a knife. ports, connectors, and working surfaces.

(2) Transfer data from old nameplate (34 or 35) to (1) Install protective caps (37, 38, and 39, new nameplate. Figure 9-1).

(2) Remove bearing ball (2, Figure 9-2) as follows:

WARNING

(a) Align bearing ball (2) with ball removal slot of bearing race.

• Acetone, O-A-51: Explosive when subjected to high temperature, source of ignition, high (b) Remove bearing ball (2) from bearing race.

pressure, or other chemicals. Flammable

(3) Mount cylinder body in milling machine withnear sparks, open flames, welding areas, hot flat face of bearing race facing upward, concen-surfaces, other sources of ignition, or while tric with machine spindle within 0.003 inches.smoking. Inhalation, contact, or ingestion may cause irritation or burning of respira-

(4) Using a carbide end mill, 0.997 +0.000/-0.003tory system, eyes, face, skin, or digestive inches diameter, machine face of bearing racesystem. Personal protective equipment 0.046-0.056 inches deep.required when handling or using this mate-rial. May lead to allergic sensitivity in some (5) Press bearing race out of cylinder body, using individuals. Thermal decomposition may locally manufactured bearing race removal tool release toxic by-products. Provide local (Figure 5-4).

exhaust or general dilution ventilation to meet published exposure limits. If these are (6) Clean cylinder body thoroughly to remove any not available, use respirator having NIOSH contaminant left by milling operation approval for the materials released. (Chapter 4).

• Denatured Alcohol, O-E-760, is flammable

(7) Inspect bearing bore in cylinder body (7)and toxic to skin, eyes, and respiratory tract.

(Table 5-1).Skin and eye protection is required. Avoid repeated or prolonged contact. Use in a (8) Mount cylinder body on T2649-2 bearing race well-ventilated area. installation tool with bearing race lug on spring loaded pin (Figure 5-5).(3) Clean actuator surface, using cleaning cloth, CCC-C-46, saturated with denatured alcohol, O- (9) If bearing ball is installed in new bearing race, E-760, or acetone, O-A-51. remove bearing ball (substep (2)).

(4) Remove protective backing from nameplate (34 or 35) and activate adhesive, using acetone, O- WARNING A-51.

(5) For 1377M72P06, P09, and P11 actuators, apply Use extreme care when working with springs nameplate (34) to actuator and press into place. under compression. Serious injury could result if spring is suddenly released.

(6) For 1377M72P07 and P14 actuators, apply nameplate (35) to actuator and press into place. (10) Place bearing race, flange side up, over spring loaded pin.

(7) Seal edges of nameplate (34 or 35) with clear lacquer, TT-L-50. (11) Install T2649-2 bearing race installation tool pusher onto top of spring loaded pin.

h. Replace damaged bearing assembly (1, Figure 9-2) as follows: (12) Using an arbor press, press bearing race until flange of bearing race seats on chamfer in cylinder body.

5-10 Change 6

(13) Remove cylinder body from T2649-2 bearing (19) Position dial indicator arm onto back face of race installation tool. ST10832 roller swaging tool rotating portion.

(14) Install bearing ball (2, Figure 9-2) into bearing (20) Zero dial indicator.

race (step b).

(21) Operate milling machine at 115-135 RPM and

(15) Set up ST10832 roller swaging tool stationary apply load to bearing race. Maintain load on portion onto milling machine or drill press, bearing race until outer edge is deformed 0.015 concentric with spindle within 0.003 inch inches, as read on dial indicator.

(Figure 5-6).

(22) Dwell at 0.015 inches for 2-5 seconds. Retract

(16) Install ST10832 roller swaging tool rotating milling machine spindle.

portion onto milling machine spindle.

(23) Remove cylinder body from ST10832 roller

(17) Mount cylinder body onto ST10832 roller swag- swaging tool stationary portion.

ing tool stationary portion.

(24) Inspect bearing race as follows:

(a) Gap at bearing race flange OD shall notCAUTION exceed 0.005 inches maximum.

Bearing race and cylinder body shall be suita- (b) No cracks in swaged flange permitted.

bly supported during swaging operation to

(c) No axial movement of bearing race in cylin-ensure that no strain or binding occurs on inner der body permitted.bearing members. Ensure housing is not can-tilevered off ST10832 roller swaging tool sta-

(25) Inspect bearing ball. Bearing ball shall be free totionary portion.

rotate with no binding or hesitation.

(18) Lower milling machine spindle and apply light load onto bearing race.

5-11

Figure 5-4. Locally Manufactured Bearing Race Removal Tool

5-12

Figure 5-5. Bearing Assembly - Preparation for Installation

5-13

Figure 5-6. Bearing Assembly - Swaging

5-14

CHAPTER 6

ASSEMBLY

outer diameter grooves of LVDT (27) with6.1 GENERAL.

packing (32) closest to flange of LVDT.

This chapter provides procedures for assembly of the

(2) Remove insulation from LVDT (27) cable, leav-actuator after cleaning, inspection, repair, and replacement ing 2-1/8 inches covering shielded wires (Figurehave been performed. All steps apply unless specified by 6-1).part number. Observe the following:

(3) Remove exposed outer shielding from LVDTa. Special tools and test fixtures required for assem-cable leaving two groups of shielded wires.bly are listed in Table 2-1.

(4) Remove shielding from each group of wiresb. Wear limit dimensions for the actuator are listed in leaving four insulated wires exposed beyond 2-Table 5-1.

1/8 inches of insulated LVDT cable.

c. Replace all nonmetallic parts at each overhaul.

(5) Cut a 3/4 inch length of shrink tubing, M23053/

11-112-O.d.