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MNVD-TM-ITI OPERATOR MANUAL FOR THE Monocular Night Vision Device (MNVD) Rev. 1 11 October 2011

Instruction Manual EOTECH MNVD | Optics Trade

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Page 1: Instruction Manual EOTECH MNVD | Optics Trade

MNVD-TM-ITI

OPERATOR MANUAL FOR THE

Monocular Night Vision Device (MNVD)

Rev. 1 11 October 2011

Page 2: Instruction Manual EOTECH MNVD | Optics Trade
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i

SAFETY SUMMARY GENERAL This manual contains operating instructions and maintenance procedures which may cause injury or death to personnel, or damage to equipment if not properly followed. Prior to performing any task, the WARNINGs, CAUTIONs and NOTEs included in that task shall be reviewed and understood. DEFINITIONS

WARNING

Highlights an essential operating or maintenance procedure, practice, condition or statement, which, if not strictly observed, could result in injury to, or death of, personnel or long term health hazards.

CAUTION

Highlights an essential operating or maintenance procedure, practice, condition or statement, which, if not strictly observed, could result in damage to, or destruction of, equipment or loss of mission effectiveness.

NOTE

Highlights an essential operating or maintenance procedure, condition or statement.

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SAFETY PRECAUTIONS The following general safety precautions supplement the specific WARNINGs, CAUTIONs and NOTEs that appear elsewhere in this manual.

WARNING

The Infrared (IR) LED Illuminator is detectable by an enemy using night vision devices. Detection is easier in smoky, foggy, or rainy conditions. To reduce the risk of detection by an enemy using night vision devices, avoid prolonged activation of the IR LED Illuminator.

WARNING

Emission of stray light from the eyepiece (even with eyecup installed) may be detectable by the enemy.

WARNING

Do not touch, ingest, or inhale particles or fragments of a broken objective lens. Lens contains material that may cause irritation to eyes, skin, upper and lower respiratory tracts, or gastrointestinal tract. If contacted, flush eyes or skin with large amounts of water. If ingested, DO NOT induce vomiting. Rinse mouth with water and give victim 2-4 cupfuls of milk or water. Fragments of lens may be sharp enough to cut personnel if touched.

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WARNING

Remove the MNVD from the weapon before inspecting, cleaning, or performing other maintenance functions.

WARNING

• Do not short circuit, puncture, incinerate, or

disassemble battery. • Do not attempt to recharge battery. • Prior to use, inspect battery for cracks, dents,

leakage, or bulging. Never install a defective battery in the MNVD.

WARNING

Lithium batteries can explode or cause burns if disassembled, shorted, recharged, exposed to water, fire, or high temperatures (above 100°C or 212°F). Do not place loose batteries in a pocket or other container containing metal objects. Do not store batteries with hazardous or combustible materials. Store in a cool, dry, ventilated area.

WARNING

Use of off-brand batteries poses a risk of fire or explosion. Ensure that only a 1.5V AA battery produced by a well-known battery manufacturer is installed in the MNVD. These batteries are specifically designed for use in high performance, high-drain devices, and contain built-in fault and heat protection features.

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CAUTION

Do not ship or store the MNVD with the battery installed.

CAUTION

Pointing the MNVD at the sun without the lens cover installed may damage internal imaging components.

CAUTION

The coating on the demist shield may be damaged if cleaned while wet. Clean the demist shield only when dry and using dry lens tissue.

CAUTION

Use of acetone or gun cleaning agents containing perchloroethylene or methylene chloride may permanently damage the MNVD.

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TABLE OF CONTENTS

SAFETY SUMMARY ....................................................................... i TABLE OF CONTENTS ................................................................. v LIST OF FIGURES ....................................................................... vii LIST OF TABLES ......................................................................... vii

CHAPTER 1 ...................................................................................... 1-1 INTRODUCTION ......................................................................... 1-1

SECTION I .............................................................................. 1-1 GENERAL INFORMATION ............................................... 1-1

1.1 SCOPE .................................................................. 1-1 1.2 MODEL NUMBER AND EQUIPMENT NAME ...... 1-2 1.3 MANUFACTURER ................................................ 1-2 1.4 PURPOSE OF EQUIPMENT ................................ 1-2 1.5 ABBREVIATIONS AND ACRONYMS .................. 1-2

SECTION II ............................................................................. 1-3 EQUIPMENT DESCRIPTION ........................................... 1-3

1.6 SYSTEM DESCRIPTION ...................................... 1-3 1.7 TECHNICAL SPECIFICATIONS .......................... 1-4 1.8 MAJOR COMPONENTS ....................................... 1-5 1.9 FEATURES AND CONTROLS ............................. 1-8

CHAPTER 2 ...................................................................................... 2-1 OPERATING INSTRUCTIONS ................................................... 2-1

SECTION I .............................................................................. 2-1 PREPARATION FOR USE ............................................... 2-1

2.1 PREPARATION FOR USE ................................... 2-1 2.2 BATTERY HANDLING .......................................... 2-2 2.3 HEADMOUNT ASSEMBLY .................................. 2-3 2.4 WEAPON MOUNTING INSTRUCTIONS ........... 2-11 2.5 LENS ACCESSORIES ........................................ 2-14

SECTION II ........................................................................... 2-16 OPERATING INSTRUCTIONS ....................................... 2-16

2.6 MODES OF OPERATION ................................... 2-16 2.7 IR LED ILLUMINATOR ....................................... 2-17 2.8 GAIN (CONTRAST) ............................................ 2-18 2.9 FOCUS ................................................................ 2-18 2.10 DIOPTER ADJUSTMENT ................................. 2-19 2.11 STARTUP PROCEDURES ............................... 2-19

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TABLE OF CONTENTS – Continued

CHAPTER 3 ...................................................................................... 3-1 MAINTENANCE .......................................................................... 3-1

SECTION I .............................................................................. 3-1 OPERATOR MAINTENANCE ........................................... 3-1

3.1 TROUBLESHOOTING PROCEDURES ............... 3-1 3.2 INSPECTION / CLEANING................................... 3-3 3.3 CORRECTIVE MAINTENANCE PROCEDURES 3-5

SECTION II ............................................................................. 3-7 SERVICE / PACKING AND UNPACKING ........................ 3-7

3.4 SERVICE / REPAIR .............................................. 3-7 3.5 WARRANTY INFORMATION ............................... 3-8 3.6 NON-WARRANTY INFORMATION ...................... 3-8

APPENDIX A ................................................................................... A-1 REPAIR PARTS LIST ................................................................ A-1

APPENDIX B ................................................................................... B-1 ACCESSORIES .......................................................................... B-1

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LIST OF FIGURES

Figure 1-1 Headmounted MNVD ..................................................... 1-1Figure 1-2 Major Components ......................................................... 1-5Figure 1-3 Features and Controls .................................................... 1-8Figure 2-1 Battery Installation .......................................................... 2-2Figure 2-2 Low Battery Indicator ...................................................... 2-3Figure 2-3 Headmount Assembly .................................................... 2-4Figure 2-4 Headmount Adapter Installation ..................................... 2-6Figure 2-5 Mounting to Headmount Assembly ................................ 2-7Figure 2-6 Fore / Aft Release Button ............................................... 2-8Figure 2-7 Adjustment Knob ............................................................ 2-9Figure 2-8 Weapon Mount Assembly ............................................ 2-11Figure 2-9 Weapon Mount Assembly Installation .......................... 2-12Figure 2-10 Mounting the MNVD ................................................... 2-13Figure 2-11 MNVD Eyecups .......................................................... 2-15Figure 2-12 IR LED Illuminator Indicator ....................................... 2-18Figure 3-1 Neck Cord Replacement ................................................ 3-6Figure A-1 End Item Components .................................................. A-1Figure A-2 MNVD Assembly ........................................................... A-3

LIST OF TABLES

Table 1-1 Technical Specifications .................................................. 1-4Table 1-2 List of Major Components ............................................... 1-6Table 1-3 List of Features and Controls .......................................... 1-9Table 2-1 Field of View and Positioning Adjustments ................... 2-10Table 2-2 Mode Switch Operation ................................................. 2-17Table 3-1 Troubleshooting Procedures ........................................... 3-1Table A-1 List of End Item Components ......................................... A-2Table A-2 List of Repair Parts ......................................................... A-3Table B-1 List of Accessories ......................................................... B-1

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1-1

CHAPTER 1

INTRODUCTION

SECTION I GENERAL INFORMATION

Figure 1-1 Headmounted MNVD 1.1 SCOPE This manual is intended for use by operators of the Monocular Night Vision Device (MNVD). It provides a system description, operational procedures, and maintenance responsibilities. Complete familiarization with this manual prior to using the equipment will ensure safe operation and maximum effectiveness of the MNVD.

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1.2 MODEL NUMBER AND EQUIPMENT NAME 245620, Monocular Night Vision Device (MNVD) 1.3 MANUFACTURER

L-3 Communications Corporation Warrior Systems Division Insight Operations 9 Akira Way Londonderry, NH 03053 USA

1.4 PURPOSE OF EQUIPMENT The MNVD allows for observation under adverse conditions including light rain, smoke, light snow, and low light to total darkness. 1.5 ABBREVIATIONS AND ACRONYMS Abbreviations and acronyms used in this manual are listed as follows:

cm Centimeter g Gram I2 Image Intensifier IR Infrared ITAR International Traffic in Arms Regulations LED Light Emitting Diode mm Millimeter MNVD Monocular Night Vision Device NSN National Stock Number RMA Return Material Authorization TBD To Be Determined V Volt

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SECTION II

EQUIPMENT DESCRIPTION

1.6 SYSTEM DESCRIPTION The MNVD is a portable, battery operated night vision device with an integrated IR light source. It can be used as a handheld device or may be mounted to a weapon, helmet, or headmount assembly. When used in the normal operating mode (ON), the MNVD amplifies available ambient light to allow for observation under adverse conditions including light rain, smoke, light snow, and low light conditions. When used in the IR mode, the MNVD generates its own light with an integrated IR LED Illuminator to allow for observation, map reading, etc. even in complete darkness. The MNVD is a ruggedized system designed for operation in battlefield environments.

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1.7 TECHNICAL SPECIFICATIONS Table 1-1 provides technical specifications for the MNVD.

Table 1-1 Technical Specifications

WEIGHT AND DIMENSIONS Weight < 14.1 ounces (400 g) Length (with standard eyecup) 6.5 inches (16.5 cm)

Width 2.8 inches (7.1 cm) Height 2.4 inches (6.1 cm)

POWER AND PERFORMANCE Battery One 1.5V AA lithium battery Battery Life 1 > 15 hours Magnification 1x Field of View 40° (± 2°) Objective Focus 9.8 inches (25cm) to infinity Diopter Adjustment +2 to -6 Immersion 1 meter for 30 minutes Operating Temperature -60°F (-51°C) to 120°F (49°C) Storage Temperature -60°F (-51°C) to 185°F (85°C)

1 Performance will vary depending on actual environmental and

atmospheric conditions.

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1.8 MAJOR COMPONENTS The MNVD system includes the components shown in Figure 1-2. Table 1-2 provides a brief functional description of each item. The “Key” column in Table 1-2 corresponds to the label numbers in Figure 1-2.

Figure 1-2 Major Components

1

2 3

4

5

6 7

8

9

10

11 12

13 15

14

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1.8 MAJOR COMPONENTS – Continued

Table 1-2 List of Major Components

Key Major Component Function

1 Brow Pads Used on the headmount assembly to

provide maximum comfort and best fit. 2 Headmount

Assembly Worn on the head to permit hands-free operation of the MNVD.

3 Soft Carrying

Case Protects the MNVD and accessories while in a field environment.

4 Operator Manual Provides detailed operating and

maintenance procedures specific to the MNVD.

5 Quick Reference

Guide Provides at-a-glance operating instructions for the MNVD.

6 Lens Tissue Used to clean the optical surfaces of the

MNVD. 7 Retainer Cord May be tied to the MNVD and clipped to

the operator to secure the MNVD when not in use.

8 Sacrificial

Window Protects the objective lens from becoming scratched or otherwise damaged.

9 Demist Shield Protects the eyepiece from becoming

scratched or otherwise damaged and prevents fogging of the eyepiece.

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1.8 MAJOR COMPONENTS – Continued

Table 1-2 List of Major Components – Continued

Key Major Component Function

10 Headmount

Adapter Allows the MNVD to be installed on the headmount assembly or a suitably configured helmet.

11 Weapon Mount

Assembly Allows the MNVD to be mounted to weapons equipped with a MIL-STD-1913 rail.

12 Eyecup,

Shuttered Reduces emission of stray light from the eyepiece when the MNVD is used in a weapon-mounted configuration.

13 MNVD Assembly A portable, battery operated night vision

device with integrated IR light source.

14 AA Lithium Battery (2)

Provides power to the MNVD.

15 Shoulder Strap Allows the soft carrying case to be slung

across the shoulder for ease of carrying.

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1.9 FEATURES AND CONTROLS Figure 1-3 shows features and controls for the MNVD. Table 1-3 provides a brief functional description of each item. The “Key” column in Table 1-3 corresponds to the label numbers in Figure 1-3.

Figure 1-3 Features and Controls

1

2

5 6

7

8

11 12

3

10 9

4

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1-9

1.9 FEATURES AND CONTROLS – Continued

Table 1-3 List of Features and Controls

Key Major Component Function

1 Objective Lens Collects available light within the viewed

scene and focuses it onto the input surface of an image intensifier (I2) tube.

2 Focus Ring Used to focus the MNVD from 9.8

inches (25cm) to infinity. 3 High Light Sensor Detects ambient light conditions so that

the I2 tube will be automatically shut off if conditions are so bright as to risk damaging internal components.

4 Mounting

Interface Provides female threading to accept the headmount adapter and weapon mount assembly.

5 Diopter Adjuster Used to focus the eyepiece lens to

compensate for the visual acuity of the operator.

6 Eyecup Assists in positioning the MNVD relative

to the operator’s eye in handheld and headmounted configurations. Reduces emission of stray light from the eyepiece.

7 Mode Switch A 3-position switch used to turn the

MNVD on in a selected operating mode. 8 Lens Cover Protects the objective lens and internal

imaging components and prevents glare or reflection off the objective lens when the MNVD is not in use.

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1.9 FEATURES AND CONTROLS – Continued

Table 1-3 List of Features and Controls – Continued

Key Major Component Function

9 Neck Cord Holds the objective lens cover captive to

the MNVD. Allows for the MNVD to be worn around the neck during periods of nonuse.

10 IR LED

Illuminator Used to provide a supplementary light source in conditions of extreme darkness.

11 Gain Control

Knob Used to adjust the gain (contrast) of the viewed image.

12 Battery Cap /

Compartment Provides secure housing for the single AA battery that powers the MNVD.

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2-1

CHAPTER 2

OPERATING INSTRUCTIONS

SECTION I PREPARATION FOR USE

2.1 PREPARATION FOR USE Unpacking the Equipment Open the soft carrying case and verify that all major components listed in Table 1-2 are present. Check the MNVD to ensure the following additional items are included:

a. Eyecup b. Lens Cover c. Battery Cap d. Neck Cord

If any of the major components or items listed above are missing, seek guidance from the equipment issuing authority. Inspection of the Equipment Before use, inspect all pieces of equipment for any damage such as cracks, loose parts, faulty cables, or other visible defects. If any damage or defects are noted, seek guidance from the equipment issuing authority.

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2-2

2.2 BATTERY HANDLING Battery Inspection Before installation, inspect the battery for any cracks, dents, leakage, or bulging. Never install a defective battery in the MNVD. Battery Installation Access the battery compartment by turning the battery cap counterclockwise. Install one AA lithium battery with the positive terminal facing in as shown in Figure 2-1. Proper battery orientation is clearly marked on the MNVD housing. Replace the battery cap and turn clockwise to tighten.

Figure 2-1 Battery Installation

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2.2 BATTERY HANDLING – Continued

CAUTION

Do not ship or store the MNVD with battery installed.

Low Battery Indicator A red light visible through the eyepiece, just outside the intensified field of view, indicates a low battery condition. It will illuminate when approximately 30 minutes of operation remain.

Figure 2-2 Low Battery Indicator 2.3 HEADMOUNT ASSEMBLY The MNVD system comes with a headmount assembly that may be worn on the head to permit hands-free operation of the MNVD.

FIELD OF VIEW LOW BATTERY

INDICATOR

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2.3 HEADMOUNT ASSEMBLY – Continued Donning the Headmount Assembly The following procedures for donning the headmount assembly should be performed before attaching the headmount adapter and MNVD. 1. Review Figure 2–3 to gain familiarity with the labeled

items that will be referred to in this section.

Figure 2-3 Headmount Assembly

FRONT CHIN STRAP (2)

REAR CHIN STRAP (2)

VERTICAL ADJUSTMENT

STRAP

NECK PAD

SNAPS (4)

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2.3 HEADMOUNT ASSEMBLY – Continued 2. Loosen the four chin straps until the ends of each strap

are approximately two inches from the sliding bar buckles.

3. Ensure the front and rear snaps are engaged. 4. Position the neck pad on the back of the neck and pull the

headmount assembly over the head. 5. Remove slack from the two rear chin straps but do not

tighten. 6. Adjust front and rear chin straps and vertical adjustment

strap until the headmount assembly is in a comfortable but firm position.

NOTE

Minor strap adjustments may be necessary after installing the headmount adapter and MNVD.

Headmount Adapter The headmount adapter allows the MNVD to be installed on the headmount assembly or a suitably configured helmet. 1. With the MNVD in one hand, use the free hand to orient

the headmount adapter above the mounting interface as shown in Figure 2-4. Keying features in the headmount adapter and mounting interface allow only one orientation.

2. Rotate the thumbscrew clockwise to secure the headmount adapter to the MNVD, taking care not the cross threads.

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2.3 HEADMOUNT ASSEMBLY – Continued

Figure 2-4 Headmount Adapter Installation 3. The headmount adapter is now installed on the MNVD. Mounting Align the headmount adapter with the receptacle on the headmount assembly as shown in Figure 2-5 and push the parts together until the mating features engage. To disengage, press the release lever shown below.

THUMBSCREW

MOUNTING INTERFACE

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2-7

2.3 HEADMOUNT ASSEMBLY – Continued

Figure 2-5 Mounting to Headmount Assembly Positioning Adjustments With the MNVD system installed, positioning adjustments must be made for maximum performance and comfort. Figures 2-6 and 2-7 show controls used for positioning adjustments.

NOTE

Positioning adjustments are made with the MNVD attached to the headmount, the eyecup installed, and the headmount properly donned. The MNVD cannot be properly adjusted until the headmount itself is correctly fitted.

RELEASE LEVER

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2.3 HEADMOUNT ASSEMBLY – Continued

NOTE

Optimal system performance and comfort of the operator rely on carefully following the procedures below. The best visual performance is possible only when the optical axis of the device is aligned with the visual axis of the eye.

• Fore / Aft Adjustment. The MNVD can be moved

forward or backward relative to the head. Press the fore / aft release button and slide the MNVD forward or backward to achieve optimal eye relief.

Figure 2-6 Fore / Aft Release Button

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2.3 HEADMOUNT ASSEMBLY – Continued

• Height Adjustment. The headmount’s vertical adjustment strap (see Figure 2-3) provides for height adjustment of the MNVD. Tighten or loosen the vertical adjustment strap until the MNVD is level with the operator’s eyes.

• Pupillary Adjustment. The MNVD can be moved in an arc to provide best alignment with the operator’s eye. Unscrew the adjustment knob to its full and open position (see Figure 2-7). Gently push the MNVD away from the operator’s head and rotate clockwise or counterclockwise until proper positioning is achieved. Screw in the adjustment knob to lock the MNVD in place.

Figure 2-7 Adjustment Knob

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2.3 HEADMOUNT ASSEMBLY – Continued The first row in Table 2-1 shows the optimal field of view for the MNVD when positioning adjustments are correctly performed. The remaining rows show unsatisfactory fields of view when positioning adjustments are performed incorrectly, along with corrective action that can be taken to resolve the problem.

Table 2-1 Field of View and Positioning Adjustments

Field of View Remarks / Corrective Action

Optimal alignment.

Eye relief too long. Correct fore and aft adjustment.

Eye relief too short. Correct fore and aft adjustment.

Eyepiece set too left. Correct pupillary adjustment.

Eyepiece set too right. Correct pupillary adjustment.

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2.3 HEADMOUNT ASSEMBLY – Continued Table 2-1 Field of View and Positioning Adjustments –

Continued

Field of View Remarks / Corrective Action

Positioned too high. Correct height adjustment.

Positioned too low. Correct height adjustment.

MNVD field of view Eyepiece field of view Obstructed MNVD field of view

2.4 WEAPON MOUNTING INSTRUCTIONS The weapon mount assembly allows the MNVD to be mounted to weapons equipped with a MIL-STD-1913 rail.

Figure 2-8 Weapon Mount Assembly

THUMBSCREW

MOUNTING SCREW

JAWS

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2.4 WEAPON MOUNTING INSTRUCTIONS – Continued Installing the Weapon Mount Assembly 1. With the MNVD in one hand, use the free hand to orient

the weapon mount assembly above the mounting interface as shown in Figure 2-9. Keying features in the weapon mount assembly and mounting interface allow only one orientation.

2. Rotate the thumbscrew clockwise to secure the weapon mount assembly to the MNVD, taking care not the cross threads.

Figure 2-9 Weapon Mount Assembly Installation 3. The weapon mount assembly is now installed on the

MNVD.

MOUNTING INTERFACE

THUMBSCREW

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2.4 WEAPON MOUNTING INSTRUCTIONS – Continued Mounting the MNVD

WARNING

Be sure the weapon is CLEAR and SAFE before proceeding.

1. Loosen the mounting screw on the weapon mount

assembly until the jaws have sufficient space to fit over the weapon rail.

2. Position the MNVD facing forward, ensuring the recoil lug is seated in the desired recoil groove of the rail. While pushing down and forward on the MNVD, turn the mounting screw clockwise until snug.

Figure 2-10 Mounting the MNVD

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2-14

2.5 LENS ACCESSORIES Objective Lens Cover The objective lens cover affords additional protection to the objective lens and protects the MNVD’s internal imaging components. It should be pressed into place (installed) over the objective lens whenever the MNVD is not being used. It should also be installed when the MNVD is being used in brightly lit environments. A small hole in the center of the lens cover allows enough light to enter the MNVD when operating in these conditions. In darker environments, better performance will be observed with the lens cover uninstalled. The objective lens cover is held captive to the MNVD by the neck cord. Sacrificial Window A sacrificial window is provided to protect the objective lens from becoming scratched or otherwise damaged. The sacrificial window should be pressed into place (installed) over the objective lens whenever the lens cover is not installed. Demist Shield

CAUTION

The coating on the demist shield may be damaged if cleaned while wet. Clean the demist shield only when dry and using dry lens tissue.

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2-15

2.4 LENS ACCESSORIES – Continued The demist shield is provided to protect the eyepiece from becoming scratched or otherwise damaged, and to prevent fogging of the eyepiece. It should be installed whenever the MNVD is in use. With the eyecup removed, place the demist shield over the eyepiece with the narrow side in. Taking care not to smudge the eyepiece or demist shield, press the demist shield into place. Eyecups The MNVD is equipped with both a standard and shuttered eyecup to accommodate a variety of tactical situations and mounting configurations.

Figure 2-11 MNVD Eyecups To install, press the desired eyecup over the end of the eyepiece. If installing the standard eyecup, rotate to obtain proper eye / cheek weld.

STANDARD EYECUP SHUTTERED EYECUP

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2-16

SECTION II

OPERATING INSTRUCTIONS

2.6 MODES OF OPERATION The MNVD is powered on by turning the Mode Switch to the desired position.

CAUTION

Pointing the MNVD at the sun without the lens cover installed may damage internal imaging components.

NOTE

The MNVD is equipped with a high light sensor (see Figure 1-3) that detects ambient light conditions and automatically shuts down the I2 tube if conditions are so bright as to risk damaging internal components. To reset (power on) the MNVD after a high light shutdown, turn the Mode Switch to the RESET / OFF position and then back to the desired setting.

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2-17

2.6 MODES OF OPERATION – Continued

Table 2-2 Mode Switch Operation

Mode Switch Position Effect

RESET OFF

Turns MNVD off. Resets the MNVD after a high light shutdown.

ON Activates the MNVD using (and amplifying) available, ambient light.

IR PULL

Activates the MNVD using the IR LED Illuminator to provide an integrated light source in conditions of extreme darkness.

2.7 IR LED ILLUMINATOR

WARNING

The IR LED Illuminator is detectable by an enemy using night vision devices. Detection is easier in smoky, foggy, or rainy conditions. To reduce the risk of detection by an enemy using night vision devices, avoid prolonged activation of the IR LED Illuminator.

The IR LED Illuminator is used to provide a supplementary light source in conditions of extreme darkness. In addition to the IR mode described in Table 2-2, the IR LED Illuminator may also be activated in a momentary setting. To momentarily activate the IR LED Illuminator, turn the Mode Switch to the ON position. Continue turning past the ON position and hold. The IR LED Illuminator will remain activated until the Mode Switch is released. A red light in the eyepiece, just outside the intensified field of view, indicates that the IR LED Illuminator is activated.

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2.7 IR LED ILLUMINATOR – Continued

Figure 2-12 IR LED Illuminator Indicator 2.8 GAIN (CONTRAST) The MNVD is equipped with a gain control knob used to adjust the gain (contrast) of the viewed image. When looking through the eyepiece, turning the gain control knob clockwise will provide more contrast. Turning the gain control knob counterclockwise will provide less contrast. 2.9 FOCUS The objective lens must be focused for the viewing distance being observed. While looking at an object at least 9.8 inches (25cm) from the MNVD, rotate the objective focus ring for best image clarity. A change in viewing distance requires that the objective lens be refocused. If already focused for a distance of at least 250 feet (76m), no change in focus is required between this distance and infinity.

FIELD OF VIEW IR LED ILLUMINATOR

INDICATOR

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2.10 DIOPTER ADJUSTMENT The eyepiece may be focused to accommodate differences in the visual acuity of individual operators, from +2 to -6 diopters. While looking at an object at least 9.8 inches (25cm) from the MNVD, rotate the diopter adjuster to achieve the sharpest possible image. 2.11 STARTUP PROCEDURES To achieve optimal performance and image clarity, the following procedures should be accomplished in the order presented, each time the MNVD is placed into use. 1. Perform mounting procedures and positioning

adjustments as applicable: a. For head or helmet-mounted configurations, don the

headmount and MNVD and make all positioning adjustments per section 2.3.

b. For weapon-mounted configurations, install the weapon mount assembly and mount to the host weapon per section 2.4.

2. Turn the Mode Switch to the desired position per section 2.6.

3. Adjust the gain (contrast) to a comfortable viewing level per section 2.8.

4. Rotate the objective focus ring for best image clarity. 5. Make diopter adjustments per section 2.10.

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3-1

CHAPTER 3

MAINTENANCE

SECTION I OPERATOR MAINTENANCE

3.1 TROUBLESHOOTING PROCEDURES The procedures below will help correct some of the basic problems that may arise with the MNVD. If the equipment malfunction is not listed, or the actions listed do not correct the fault, refer to section 3.4 for additional guidance.

Table 3-1 Troubleshooting Procedures

Malfunction Probable Cause Corrective Action 1. No image is present when turning on the MNVD.

a. Batteries are improperly installed.

a. Verify batteries are properly installed per section 2.2, Battery Installation.

b. Battery power is low. b. Replace batteries per section 2.2, Battery Installation.

c. Battery contacts require cleaning.

c. Clean battery contacts per section 3.2, Battery Compartment and Battery Cap.

2. Image abruptly turns off when in ON or IR modes.

a. High light shutdown has been initiated.

a. Reset (power on) the MNVD per section 2.6. Install the objective lens cover per section 2.5, Objective Lens Cover, if necessary.

3. Poor or degraded image.

a. Lens cover installed (dark ambient conditions).

a. Remove lens cover per section 2.4, Objective Lens Cover.

b. Lens cover not installed (bright ambient conditions).

b. Install lens cover per section 2.5, Objective Lens Cover.

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3-2

3.1 TROUBLESHOOTING – Continued

Table 3-1 Troubleshooting Procedures – Continued

Malfunction Probable Cause Corrective Action 3. Poor or degraded image – Continued.

c. Insufficient ambient light.

c. Turn the Mode Switch to the IR position to provide IR light source per section 2.6, or momentarily activate the IR LED Illuminator per section 2.7.

d. Gain (contrast) not adjusted to an appropriate setting.

d. Adjust gain (contrast) to a comfortable level per section 2.8.

e. Not focused for viewing distance being observed (minimum 9.8 inches).

e. Focus objective lens per section 2.9.

f. Diopter setting not adjusted correctly.

f. Adjust diopter setting per section 2.10.

g. Sacrificial window and/or demist shield obscured by dirt, dust, or grime.

g. Clean sacrificial window and/or demist shield per section 3.2, Optical Surfaces.

h. Sacrificial window and/or demist shield cracked or scratched.

h. Replace sacrificial window and/or demist shield per section 2.5.

i. Objective lens and/or eyepiece obscured by dirt, dust or grime.

i. Remove sacrificial window and/or demist shield. Clean objective lens and/or eyepiece per section 3.2, Optical Surfaces.

4. IR LED Illuminator does not appear to operate or provides insufficient light.

a. IR LED Illuminator exit port is dirty.

a. Clean IR LED Illuminator exit port per section 3.2, Optical Surfaces.

b. Viewed scene is outside effective range of IR LED Illuminator.

b. Limit use of IR LED Illuminator to viewed scenes within a few meters of the MNVD.

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3-3

3.2 INSPECTION / CLEANING The operator should inspect the MNVD before each use and after it has been in extreme conditions, such as prolonged exposure to intense temperatures. The following procedures will extend the life of the MNVD and help ensure safe operation.

WARNING

Remove the MNVD from the weapon before inspecting, cleaning, or performing other maintenance functions.

WARNING

Prior to performing any inspection or maintenance procedure, verify that batteries are not installed.

MNVD Housing To clean the MNVD housing, rinse with water or mild soap and water and then wipe dry with a soft cloth. Clean around adjusters, levers, and interfaces with a cotton swab. Battery Compartment Inspect the battery compartment for dirt, dust, or corrosion. Dirt or debris that cannot be shaken loose from the battery compartment may be removed using a clean cloth or cotton swab. Periodically lubricate the o-ring with fluorinated grease. The o-ring should be replaced if it becomes cut, nicked, or dried out per section 3.3, Replacing Battery Compartment O-Ring. If necessary, clean battery contacts with a cotton swab and isopropyl alcohol.

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3-4

3.2 INSPECTION / CLEANING - Continued Battery Cap Inspect the battery cap for dirt, sand, and grime. Thoroughly clean the battery cap and o-ring by flushing with water and wiping with a cotton swab. Periodically lubricate the o-ring with fluorinated grease. If necessary, clean the battery contact with a cotton swab and isopropyl alcohol. Optical Surfaces

CAUTION

The coating on the demist shield may be damaged if cleaned while wet. Clean the demist shield only when dry and using dry lens tissue.

Inspect optical surfaces for dirt, dust, and grime. Except for the demist shield, clean with water or mild soap and water. Fine cleaning of the optical surfaces should be performed using the provided lens tissue and lens cleaning solution, or the flexible tip of the lens pen. Avoid using excessive force as this may scratch the lenses. The sacrificial window and demist shield should be replaced if scratches degrade performance or cracks are present. Neck Cord Inspect the neck cord for any signs of cuts, nicks, or fraying. Replace as necessary per section 3.3, Lens Cover / Neck Cord Replacement.

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3-5

3.3 CORRECTIVE MAINTENANCE PROCEDURES The MNVD has no internal parts or assemblies replaceable by the user or organizational level personnel. Refer to section 3.4 regarding maintenance and/or repair actions beyond those described in this manual. Replacing Battery Compartment O-Ring No tools are required to perform this procedure. 1. Access the battery compartment by turning the battery

cap counterclockwise. 2. Use the fingers of one hand to squeeze the battery

compartment o-ring while simultaneously pushing it out of its retaining groove. Grasp the o-ring with fingers of the other hand and pull it off the battery compartment.

3. Ensure the o-ring retaining groove is clean and free of debris.

4. Stretch the replacement o-ring over the battery compartment and into its retaining groove.

Neck Cord Replacement No tools are required to perform this procedure. 1. Feed one end of the neck cord through the channel on

the MNVD housing as shown in Figure 3-1. 2. Feed the other end of the neck cord through the tab in the

lens cover. 3. Secure both ends with a knot. 4. Place the lens cover over the objective lens.

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3-6

3.3 CORRECTIVE MAINTENANCE PROCEDURES – Continued

Figure 3-1 Neck Cord Replacement

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3-7

SECTION II

SERVICE / PACKING AND UNPACKING

3.4 SERVICE / REPAIR For service, repair, or replacement, first e-mail [email protected]

or call toll-free 1-877-744-4803.

To assist with determining if the item is repairable, the following information will be requested:

a. Serial number of the defective item; b. Thorough description of the malfunction, defect, or

damage; and c. If known, an explanation as to how the malfunction,

defect or damage occurred. If the item is determined to be beyond economical repair, follow applicable replacement procedures through your Property Officer. If it is determined that the item is under warranty, or should be returned for repair, a Return Material Authorization (RMA) number will be provided. When returning the MNVD for service / repair, the following procedures should be followed to prevent any additional damage: 1. Be sure that the MNVD is free of all contaminants such as

dirt or any other foreign material. 2. Remove battery. 3. Place the MNVD in the soft carrying case.

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3-8

3.4 RETURN INSTRUCTIONS – Continued Place the item and a copy of the test report or detailed description of the failure in a suitable packing container. Mark the package with “Field Return” and the RMA number. Ship via fastest, traceable, pre-paid means to:

L-3 Communications Corporation Warrior Systems Division Insight Operations 9 Akira Way Londonderry, NH 03053

3.5 WARRANTY INFORMATION The MNVD is under warranty from defects in material and workmanship for a minimum of one (1) year from the date of manufacture. This warranty does not protect against damage due to misuse, mishandling or battery leakage. Additional warranty coverage may have been provided through the contract or via subsequent contract extension. Specific warranty terms can be obtained from your procurement agent, Contracting Officer or L-3 Warrior Systems, Insight. 3.6 NON-WARRANTY INFORMATION Non-warranty repairs are subject to an evaluation fee. The item will be tested and evaluated for failure, then customer permission and payment terms are obtained prior to any repairs being performed.

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A-1

APPENDIX A

REPAIR PARTS LIST

SCOPE This Appendix lists end item components and repair parts for the MNVD.

Figure A-1 End Item Components

1

3 4

5

6

7 8

9

10

11

12

13

14 16

15

2

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A-2

SCOPE – Continued

Table A-1 List of End Item Components

ITEM NO.

NATIONAL STOCK NUMBER

PART NUMBER DESCRIPTION QTY

1 8415-01-560-1800 7B435 Browpad, Medium 1 2 8415-01-560-1799 7B436 Browpad, Thick 1 3 TBD 7B268 Headmount Assembly 1 4 TBD 7B262 Soft Carrying Case 1 5 N/A MNVD-TM-ITI Operator Manual 1 6 N/A MNVD-QRG-ITI Quick Reference Guide 1 7 6760-01-556-4306 7B626 Lens Tissue 1 8 TBD MND-187 Retaining Cord 1 9 TBD 7B264 Sacrificial Window 1 10 5855-01-444-1230 MND-200 Demist Shield 1 11 TBD MND-160 Adapter, Headmount / Helmet Mount 1 12 TBD MND-140 Mount Assembly, Weapon 1 13 6650-01-444-1229 A3256345 Eyecup, Shuttered 1

14 N/A 245000 MNVD Assembly (see Figure A-2 for parts breakdown) 1

15 6135-01-559-9637 M30-044 Battery, 1.5V, AA Lithium 2 16 8465-01-559-8427 7B267 Shoulder Strap Assembly 1

- 8415-01-598-3125 7B280 Browpad, Thin (pre-installed on Headmount Assembly) 1

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A-3

SCOPE – Continued

Figure A-2 MNVD Assembly

Table A-2 List of Repair Parts

ITEM NO.

NATIONAL STOCK NUMBER

PART NUMBER DESCRIPTION QTY

1 5855-01-556-2660 7B422 Eyecup, Standard 1 2 4520-01-455-6662 7B306 Neck Cord 1 3 TBD 7B318 Lens Cover 1 4 TBD A3256356 O-Ring, Battery Compartment 1

1

2

3 4

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B-1

APPENDIX B

ACCESSORIES

SCOPE This Appendix lists accessories available for support of the MNVD.

Table B-1 List of Accessories

NATIONAL STOCK NUMBER PART NUMBER DESCRIPTION QTY

RECM TBD ICS-024-US Compass 1

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The MNVD Is designed and produced by:

L-3 Communications Corporation Warrior Systems Division

Insight Operations

9 Akira Way Londonderry, NH 03053

USA

Phone 603.626.4800 / Fax 603.626.4888 www.l3warriorsystems.com

This manual contains technical data whose export is governed by the U.S. International Traffic in Arms Regulations (ITAR). This information must not be transferred to a foreign person without the proper authorization of the U.S. Government. Please contact L-3 Warrior Systems for more information.

© 2011 L-3 Communications Corporation Warrior Systems Division

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