TM 11-5855-306-23&P (15 DECEMBER 1999)

[Pages:143]ARMY TM 11-5855-306-23&P MARINE CORPS 10271A-23&P/2

TECHNICAL MANUAL

UNIT AND DIRECT SUPPORT MAINTENANCE MANUAL INCLUDING REPAIR PARTS AND SPECIAL TOOLS LIST

MONOCULAR NIGHT VISION DEVICE (MNVD) AN/PVS-14

(NSN 5855-01-432-0524) (EIC: N/A)

Introduction, page 1-1

Equipment Description and Data, page 1-9

Preventive Maintenance Checks and Services, page 2-3

Image Intensifier Inspection Criteria, page 2-3

Unit Troubleshooting, page 2-3

Unit Maintenance Procedures, page 2-4

Direct Support Servicing, page 3-2

Direct Support Troubleshooting, page 3-3

Direct Support Maintenance Procedures, page 3-20

DISTRIBUTION STATEMENT C. Distribution authorized to U.S. Government agencies and their contractors. This publication is required for administration and operational purposes, as determined 15 August 1992. Other requests for this document shall be referred to either: Commander, U.S. Army Communications-Electronics Command and Fort Monmouth, ATTN: AMSEL-LC-LEO-E-ED-P, Fort Monmouth, NJ 07703-5000; or: Commandant of the Marine Corps (ARD), Washington, DC 20380-0001.

DESTRUCTION NOTICE - For unclassified, limited documents, destroy by any method that will prevent disclosure of contents or reconstruction of the document.

DEPARTMENT OF THE ARMY AND HEADQUARTERS, MARINE CORPS

1 June 2000

PCN 184 102711 00

TM 11-5855-306-23&P TM 10271A-23&P/2

WARNING

Do not carry batteries in pockets containing metal objects such as coins, keys, etc. Metal objects can cause batteries to short circuit and become very hot.

WARNING

Toxic Material

The image intensifier's phosphor screen contains toxic materials.

?

If an image intensifier breaks, be extremely careful to avoid

inhaling the phosphor screen material. Do not allow the material

to come in contact with the mouth or open wounds on the skin.

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If the phosphor screen material contacts your skin, wash it off

immediately with soap and water.

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If you inhale/swallow any phosphor screen material, drink a lot of

water, induce vomiting, and seek medical attention as soon as

possible.

WARNING

The IR source is a light that is invisible to the unaided eye for use during conditions of extreme darkness. However, the light from the IR source can be detected by the enemy using night vision devices.

WARNING

Personnel Injury

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Serious injury may result if the nitrogen tank valve breaks off due

to tank upset. If the tank valve breaks, the tank can be propelled

by the escaping gas and strike you or others.

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Always secure the tank to an upright support before removing the

tank valve guard and attaching the regulator valve to the tank.

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TM 11-5855-306-23&P TM 10271A-23&P/2

WARNING

EQUIPMENT LIMITATIONS

To avoid physical and equipment damage when using the MNVD carefully read and understand the following safety precautions.

?

The MNVD requires some night light (moonlight, starlight, etc.) to

operate. The level of performance depends upon the level of light.

?

Night light is reduced by passing cloud cover, while operating

under trees, in building shadows, etc.

?

The MNVD is less effective viewing into shadows and other

darkened areas.

?

The MNVD is less effective through rain, fog, sleet, snow, or

smoke.

?

The MNVD will not see through dense smoke.

WARNING

The monocular will not be turned off automatically when flipped up. The monocular must be turned off by the power switch.

WARNING

The compass illuminator can be seen by others using night vision devices.

WARNING

When installing the headmount over the protective mask, be careful not to break the protective mask seal around your face.

WARNING

Do not use contaminated eyecup or eyeguard. They must be replaced.

FIRST AID For first aid or artificial respiration, see FM 21-11, First Aid for Soldiers.

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TECHNICAL MANUAL No. TM 11-5855-306-23&P TECHNICAL MANUAL No. TM 10271A-23&P/2

TM 11-5855-306-23&P TM 10271A-23&P/2

DEPARTMENT OF THE ARMY AND HEADQUARTERS, MARINE CORPS

Washington, DC 1 June 2000

UNIT AND DIRECT SUPPORT MAINTENANCE MANUAL INCLUDING REPAIR PARTS AND SPECIAL TOOLS LIST

MONOCULAR NIGHT VISION DEVICE (MNVD) AN/PVS-14 (NSN 5855-01-432-0524) (EIC: N/A)

REPORTING ERRORS AND RECOMMENDING IMPROVEMENTS

You can help improve this manual. If you find any mistakes or if you know of a way to improve the procedures, please let us know. Mail your letter, DA Form 2028 (Recommended Changes to Publications and Blank Forms), or DA Form 2028-2 (Recommended Changes to Equipment Technical Publications) located in the back of this manual directly to: Commander US Army Communications-Electronics Command and Fort Monmouth, ATTN: AMSEL-LC-LEO-D-CS-CFO, Fort Monmouth, New Jersey 07703-5000. The Fax number is 732-532-1413, DSN 992-1413. You may also email your recommendations to AMSEL-LC-LEO-PUBS-CHG@cecom3.monmouth. army.mil. Marine Corps personnel send NAVMC 10772 to: Commander, Marine Corps Logistics Base (Code 826) 814 Radford Blvd, Albany, GA 31704-1128.

A reply will be furnished to you.

TABLE OF CONTENTS

Paragraph

Title

Page

How to Use This Manual .................................................................vii

CHAPTER 1 Introduction .................................................................................1-1

Section I 1-1 1-2 1-3 1-4 1-5 1-6 1-7 1-8

General Information ......................................................................1-1 Scope............................................................................................1-1 Maintenance Forms, Records, and Reports ..................................1-2 Destruction of Electronic Materiel to Prevent Enemy Use..............1-2 Preparation for Storage or Shipment .............................................1-2 Official Nomenclature, Names, and Designations..........................1-2 Reporting Equipment Improvement Recommendations (EIR) .......1-3 Warranty Information.....................................................................1-4 Corrosion Prevention and Control (CPC).......................................1-9

Section II 1-9

1-10 1-11 1-12

Equipment Description and Data...................................................1-9 Equipment Characteristics, Capabilities, and Features..................1-9 Location and Description of Major Components ..........................1-10 Configuration of Image Intensifier................................................1-14 Equipment Data ..........................................................................1-15

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TABLE OF CONTENTS -- Continued

Paragraph

Title

Page

Section III 1-13 1-14 1-15

Principles of Operation................................................................ 1-16 Mechanical Functions ................................................................. 1-16 Optical Functions ........................................................................ 1-16 Electronic Circuit Functions ........................................................ 1-17

CHAPTER 2 UNIT MAINTENANCE INSTRUCTIONS ....................................... 2-1

Section I

2-1 2-2 2-3

Repair Parts, Tools, Special Tools, TMDE, and Support Equipment .................................................................................... 2-2 Common Tools and Equipment..................................................... 2-2 Special Tools, TMDE, and Support Equipment ............................. 2-2 Repair Parts.................................................................................. 2-2

Section II 2-4 2-5 2-6

Service Upon Receipt ................................................................... 2-2 Site and Shelter Requirements ..................................................... 2-2 Service Upon Receipt of Material.................................................. 2-2 Installation ................................................................................... 2-3

.

Section III Preventive Maintenance Checks and Services

2-7 Preventive Maintenance Checks and Services (PMCS) Table ...... 2-3

2-8 Image Intensifier Inspection Criteria.............................................. 2-3

Section IV

2-9 2-10

Section V 2-11 2-12 2-13 2-14 2-15 2-16 2-17 2-18 2-19 2-20 2-21 2-22

Section VI 2-23

Unit Troubleshooting..................................................................... 2-3

Unit Troubleshooting..................................................................... 2-3 Resolution Check Using TS-4348/UV Test Set ............................. 2-3

Unit Maintenance Procedures....................................................... 2-4 Removal and Installation of Components...................................... 2-4 Removal and Installation of Power Switch Knob ........................... 2-4 Removal and Installation of Gain Control Knob............................. 2-5 Removal and Installation of Batteries/Battery Cartridge ................ 2-5 Removal and Installation of Browpads .......................................... 2-6 Removal and Installation of Neck Pads......................................... 2-6 Removal and Installation of Chinstrap........................................... 2-8 Removal and Installation of Cross Strap ....................................... 2-9 Removal and Installation of Helmet Mount.................................. 2-10 Removal and Installation of Magnet on Metal Helmet Mount ...... 2-11 Repainting and Refinishing Requirements .................................. 2-12 Lubrication Requirements ........................................................... 2-12

Preparation for Storage and Shipment........................................ 2-12 Packing the MNVD ..................................................................... 2-12

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Paragraph

CHAPTER 3

Section I

3-1 3-2 3-3

Section II 3-4 3-5

Section III 3-6

Section IV 3-7 3-8 3-9

3-10 3-11

Section V 3-12 3-13 3-14 3-15 3-16 3-17 3-18 3-19 3-20

Section VI 3-21 3-22

APPENDIX A A-1 A-2 A-3 A-4 A-5 A-6

TM 11-5855-306-23&P TM 10271A-23&P/2

TABLE OF CONTENTS -- Continued

Title

Page

DIRECT SUPPORT MAINTENANCE INSTRUCTIONS ................3-1

Repair Parts, Tools, Special Tools, TMDE, and Support Equipment ....................................................................................3-1 Common Tools and Equipment .....................................................3-1 Special Tools, TMDE, and Support Equipment..............................3-2 Repair Parts ..................................................................................3-2

Service Upon Receipt....................................................................3-2 Site and Shelter Requirements......................................................3-2 Service Upon Receipt of Material ..................................................3-2

Direct Support Servicing ...............................................................3-3 Scope............................................................................................3-3

Direct Support Troubleshooting ....................................................3-3 Direct Support Troubleshooting.....................................................3-3 TS-3895A/UV Preparation for Use ................................................3-7 Testing Resolution Using TS-3895A/UV........................................3-7 Electrical Troubleshooting ...........................................................3-13 Black Spot Check........................................................................3-14

Direct Support Maintenance Procedures .....................................3-20 Removal, Repair, and Replacement of Eyepiece Lens................3-20 Setting Zero Diopter for Eyepiece................................................3-29 Removal and Installation of Battery Housing ...............................3-34 Removal and Installation of Image Intensifier ..............................3-39 Removal and Installation of Objective Lens.................................3-43 Objective Lens Infinity Focus Setting...........................................3-47 Removal and Installation of Monocular Housing..........................3-49 Purging........................................................................................3-50 Operational Checks.....................................................................3-54

Preparation for Storage and Shipment ........................................3-54 Packing the MNVD......................................................................3-54 Shipping the Image Intensifier .....................................................3-54

REFERENCES Scope........................................................................................... A-1 Forms........................................................................................... A-1 Field Manuals............................................................................... A-1 Technical Manuals ....................................................................... A-1 Miscellaneous Publications .......................................................... A-1 Marine Corps Use ........................................................................ A-2

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TABLE OF CONTENTS -- Continued

Paragraph

Title

Page

APPENDIX B Section I B-1 B-2 B-3 B-4

B-5 Section II Section III Section IV

MAINTENANCE ALLOCATION CHART (MAC) (ARMY ONLY) Introduction ................................................................................... B-1 The Army Maintenance System, MAC ..........................................B-1 Maintenance Functions.................................................................B-1 Explanation of Columns in the MAC, Section II .............................B-2 Explanation of Columns in Tools and Test Equipment Requirements, Section III..............................................................B-3 Explanation of Columns in Remarks, Section IV ...........................B-3 Maintenance Allocation Chart for AN/PVS-14 ...............................B-4 Tools and Test Equipment Requirements for AN/PVS-14 .............B-5 Remarks .......................................................................................B-6

APPENDIX C Section I C-1 C-2 C-3 C-4 C-5 C-6 C-7 Section II

Section III Section IV

REPAIR PARTS AND SPECIAL TOOLS LIST Introduction...................................................................................C-1 Scope ...........................................................................................C-1 General.........................................................................................C-1 Explanation of Columns (Sections II and III) .................................C-1 Explanation of Columns (Section IV).............................................C-4 Special Information .......................................................................C-5 How to Locate Repair Parts ..........................................................C-5 Abbreviations ................................................................................C-5 Repair Parts List ...........................................................................C-6 AN/PVS-14 ...................................................................................C-7 Monocular Assembly ....................................................................C-9 Eyepiece Assembly ....................................................................C-11 Headset Assembly......................................................................C-13 Special Tools List........................................................................C-15 Cross-Reference Indexes ...........................................................C-16

APPENDIX D Section I D-1 D-2 Section II

EXPENDABLE AND DURABLE ITEMS LIST Introduction...................................................................................D-1 Scope ...........................................................................................D-1 Explanation of Columns ................................................................D-1 Expendable and Durable Items List ..............................................D-2

APPENDIX E Section I Section II

Section III

ILLUSTRATED LIST OF MANUFACTURED ITEMS Introduction ................................................................................... E-1 Manufactured Items Part Number Index .......................................E-1 Manufactured Items Illustrations ...................................................E-2

GLOSSARY Section I Section II

Abbreviations ................................................................... Glossary-1 Definitions of Unusual Terms ........................................... Glossary-2

ALPHABETICAL INDEX .................................................................................... Index-1

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Table

1-1 1-2 1-3 1-4 1-5 1-6 3-1 3-2

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TABLE OF CONTENTS -- Continued

List of Tables

Title

Page

Nomenclature Cross- Reference List.............................................1-2 Operator Adjustment Limits .........................................................1-15 Electrical Data .............................................................................1-15 Mechanical Data .........................................................................1-15 Optical Data ................................................................................1-15 Environmental Data.....................................................................1-15 Troubleshooting ............................................................................3-5 Monocular Allowable Black Spots and Sizes ...............................3-18

List of Figures

Figure

Title

Page

1-1 Warranty Expiration Label Location...............................................1-4 1-2 Monocular Night Vision Device (MNVD), AN/PVS-14 ..................1-11 1-3 Monocular Night Vision Device (MNVD), AN/PVS-14

and Subassemblies .....................................................................1-13 1-4 Mechanical Functions of the MNVD ............................................1-16 1-5 MNVD Optical Function Diagram ................................................1-16 1-6 Electrical Function of Monocular .................................................1-17 2-1 Headmount Components Removal and Installation.......................2-7 2-2 Lacing of Right and Left Neck Pad Straps .....................................2-8 2-3 Lacing of Sliding Bar Buckles ........................................................2-9 2-4 Installation of Helmet Mount ........................................................2-10 2-5 Magnet, Metal Helmet Mount ......................................................2-11 3-1 Location of Major Components on Test Set...................................3-9 3-2 Inserting Monocular into Test Set ................................................3-10 3-3 Low light Element in Resolution Test Pattern ..............................3-11 3-4 High Light Element in Resolution Test Pattern ............................3-12 3-5 Image Intensifier Contact Pin Location ........................................3-14 3-6 Dark Room Setup with Test Fixture.............................................3-15 3-7 Dark Room Setup with Tripod .....................................................3-16 3-8 Black Spot Evaluation .................................................................3-19 3-9 Loosening Eyepiece Locking Ring...............................................3-21 3-10 Components of Eyepiece Lens....................................................3-23 3-11 Inserting Eyepiece Lens Cell into Eyepiece Focus Ring ..............3-25 3-12 Identifying the Limits for Diopter Plus (+) Travel ..........................3-25 3-13 Applying Epoxy Adhesive to Eyepiece Retaining Ring ................3-27 3-14 Applying Lubricant to Inside of Monocular Housing .....................3-28 3-15 Setting Zero Diopter ....................................................................3-28 3-16 Attaching Collimator and Diopter Scope ......................................3-30 3-17 Properly Focused Diopter Image Using TS-3895A/UV ................3-31 3-18 Battery Housing Connections ......................................................3-36 3-19 Installing O-Ring..........................................................................3-37

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