Armasight FLIR PVS-14 User manual

ARMASIGHT by FLIRPVS-14®
Night Vision Monocular
USER MANUAL

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ARMASIGHT by FLIRPVS-14 USER MANUAL
© 2018 FLIR Systems, Inc. All rights reserved worldwide. No parts of this manual, in whole or in part,
may be copied, photocopied, translated, or transmitted by any electronic medium or in machine-readable
form without the prior written permission of FLIR Systems, Inc.
Names and marks appearing on the products herein are either registered trademarks or trademarks of
FLIR Outdoor & Tactical Systems and/or its subsidiaries. All other trademarks, trade names, or company
names referenced herein are used for identification only and are the property of their respective owners.
This product is protected by patents, design patents, patents pending, or design patents pending.
If you have questions that are not covered in this manual, or need service, contact FLIR OTS customer
support for additional information prior to returning a product.
Phone:[phone]
E-mail: [e-mail]
This documentation is subject to change without notice.
FLIR OUTDOOR & TACTICAL SYSTEMS
815 Dubuque Avenue, South San Francisco, CA 94080
Phone: [phone] or [phone]
Fax: [phone]
International Phone/Fax: [phone]
E-mail: [e-mail]
www.flir.com
EXPORT INFORMATION
Equipment described herein may require US Government authorization for export purposes. Diversion
contrary to US law is prohibited.
©2018 FLIR Systems, Inc.
Specifications are subject to change without notice, check our website: www.flir.com

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ARMASIGHT by FLIRPVS-14 USER MANUAL
PROPER DISPOSAL OF ELECTRICAL AND ELECTRONIC EQUIPMENT (EEE)
The European Union (EU) has enacted Waste Electrical and Electronic Equipment Directive 2002/96/EC
(WEEE), which aims to prevent EEE waste from arising; to encourage reuse, recycling, and recovery of
EEE waste; and to promote environmental responsibility.
In accordance with these regulations, all EEE products labeled with the “crossed out wheeled bin” either
on the product itself or in the product literature must not be disposed of in regular rubbish bins, mixed
with regular household or other commercial waste, or by other regular municipal waste collection means.
Instead, and in order to prevent possible harm to the environment or human health, all EEE products
(including any cables that came with the product) should be responsibly discarded or recycled.
To identify a responsible disposal method where you live, please contact your local waste collection
or recycling service, your original place of purchase or product supplier, or the responsible government
authority in your area.
Business users should contact their supplier or refer to their purchase contract.
IMPORTANT INSTRUCTIONS AND NOTICES TO THE USER:
Modification of this device without the express authorization of FLIR Commercial Systems, Inc. may void
the user’s authority under FCC rules to operate this device.
Note 1: This equipment has been tested and found to comply with the limits for a Class B digital device,
pursuant to Part 15 of the FCC rules. These limits are designed to provide reasonable protection against
harmful interference in a residential installation.
This equipment generates, uses, and can radiate radio frequency energy and, if not installed and used in
accordance with the instructions, may cause harmful interference to radio communications. However,
there is no guarantee that the interference will not occur in a particular installation. If this equipment
does cause harmful interference to radio or television reception, which can be determined by turning
the equipment off and on, the user is encouraged to try to correct the interference by one or more of the
following measures:
• Reorient or relocate the receiving antenna
• Increase the separation between the equipment and receiver
• Connect the equipment into an outlet on a circuit different from
that of the receiver
• Consult the dealer or an experienced radio/television technician for help.
INDUSTRY CANADA NOTICE:
This Class B digital apparatus complies with Canadian ICES-003.
AVIS D’INDUSTRIE CANADA:
Cet appareil numérique de la classe B est conforme à la norme NMB-003 du Canada.

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LIST OF CONTENTS
TITLE PAGE
Safety Statement 5
SECTION 1. INTRODUCTION 7
1.1 General Information 7
1.2 Warranty Information and Registration 7
SECTION 2. DESCRIPTION AND DATA 8
2.1 Equipment Description 8
SECTION 3. OPERATING INSTRUCTIONS 13
3.1 Description and Use of Operator’s Controls and Indicators 13
3.2 Assembly and Preparation for Use 15
3.3 Operating Procedures 23
3.4 Operation under Unusual Condition 31
SECTION 4. MAINTENANCE AND TROUBLESHOOTING 32
4.1 Preventive Maintenance Checks and Services 32
4.2 Troubleshooting Procedures 36
4.3 Identification of Operational Defects 38
4.4 Operator’s Maintenance Procedures 41
APPENDIX 43
A. Components of End Item (COEI) and Basic Issue Items (BII) Lists 43
B. Additional Authorization List (AAL) 46
C. Expendable and Durable Items List 47

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SAFETY SUMMARY
• Read and follow all instructions
• Read all warnings
• Only use the attachments/accessories specified by the manufacturer
• All service must be provided by the manufacturer
WARNING:
This product contains natural rubber latex, which may cause allergic reactions! The FDA has
reported an increase in the number of deaths that are associated with an apparent sensitivity to natural
latex proteins. If you are allergic to latex, it is a good idea to learn which products contain it and strictly
avoid exposure to those products.
WARNINGS:
Toxic Material. The image intensifier’s phosphor screen contains toxic materials.
• If the 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.
• If the phosphor screen material comes in contact with your skin, wash it off immediately with soap
and water.
• If you inhale/ swallow any phosphor screen material, drink a lot of water, induce vomiting, and seek
medical attention as soon as possible.
WARNINGS:
• The monocular will not turn off automatically when flipped up. The monocular needs to be turned
off with the power switch.
• The compass illuminator is visible to other people using night vision devices.
• Do not use contaminated eyecups or eyeguards. If contaminated, they must be replaced.
• When installing the headmount over the protective mask, be careful not to break the protective
mask’s seal around your face.

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CAUTION:
• The PVS-14 is a precision optical instrument and must be handled carefully at all times to prevent
damage.
• To prevent damage, be especially careful when leaving the helmet mount in the flipped up position
or removing the helmet mount from the helmet.
• Do not scratch the external lens surfaces or touch them with your fingers.
• Do not wipe the demisting shield with lens paper while it is damp, or using wet lens paper, as this
can damage the coating.
• To protect the image intensifier, keep the lens cap securely fitted over the objective lens when the
monocular is not in use or when it is being operated in daylight conditions.
• Light from the IR illuminator is invisible to the unaided eye. However, it can be detected by
other night vision devices.
• If you use the rubber eyecups for a long period of time, you may suffer skin inflammation. If you
develop any symptoms, consult a doctor immediately.
NOTES:
To avoid physical injury and damage to the equipment, carefully read and understand the following safety
precautions.
• The equipment requires some ambient light (moonlight, starlight, etc.) to operate.
• Performance of the device in nighttime conditions depends on the level of ambient light in the
environment. Please remember the following:
— The level of ambient light is reduced by the presence of clouds, shade, or objects that block
natural light (trees, buildings, etc.).
— The equipment is less effective when operated in shadows and other darkened areas.
— The equipment is less effective when operated in rain, fog, sleet, snow, dust or smoke.
— The equipment will not “see” through dense smoke.
• At operating temperatures below -20°C (-4°F), the use of an alkaline battery is not recommended,
as the battery life will be severely reduced. Under said conditions, lithium-iron disulfide 1.5V AA
batteries or their equivalent should be used.
• The IR illuminator is intended for increased illumination, as needed, when viewing at a close
distance of up to 3m.
• For the purpose of returning defective components, retain all packaging materials.

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SECTION 1
INTRODUCTION
1.1 GENERAL INFORMATION
To provide the operator with the ability to observe at night under moonlight and starlight
conditions.
The PVS-14 can be used as a handheld, head-mounted, helmet-mounted or weapon-mounted device
to allow walking, weapon firing, short-range surveillance, map reading, vehicle maintenance, and
administration of first aid.
1.2 WARRANTY INFORMATION AND REGISTRATION
1.2.1 WARRANTY INFORMATION
For warranty information and customer support visit www.armasight.com/customer-support
1.2.2 PRODUCT REGISTRATION
In order to validate the warranty on your product, the Customer must complete and submit FLIR Outdoor
& Tactical Systems’ PRODUCT REGISTRATION FORM on our website (www.armasight.com/customer-
support).
1.2.3 OBTAINING WARRANTY SERVICE
For service, repair or replacement, please contact:
FLIR OUTDOOR & TACTICAL SYSTEMS
815 Dubuque Avenue, South San Francisco, CA 94080
Phone: [phone]
Fax: [phone]
Int’l Phone/Fax: [phone]
[e-mail]

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SECTION 2
DESCRIPTION AND DATA
2.1 EQUIPMENT DESCRIPTION
2.1.1. EQUIPMENT CHARACTERISTICS, CAPABILITIES, AND FEATURES
The PVS-14 is a hand-held, head-mounted, helmet mounted, or weapon-mounted night vision system
that enables walking, weapon firing, short-range surveillance, map reading, vehicle maintenance,
and administration of first aid in both moonlight and starlight conditions. Each unit allows for vertical
adjustment (by using the head strap), fore-and-aft adjustment, objective lens focus and eyepiece focus.
The monocular is also equipped with a manual gain control, an IR source, and a low battery indicator.
2.1.2. LOCATION AND DESCRIPTION OF MAJOR COMPONENTS
The NVMPS includes the items shown in Figures 2-1 and 2-2. The major components are the monocular,
head mount, helmet mount, carrying case, and the shipping and storage case.
A. MONOCULAR
The monocular (see Figure 2-4) consists of various components such as an objective lens, an image
intensifier (not shown), an eyepiece lens and a battery cap.
The monocular also uses the accessories listed below (Figure 2-1 and Figure 2-2):
B. DEMIST SHIELD
The demist shield is used to prevent the eyepiece lenses from becoming fogged.
C. SACRIFICIAL WINDOW
A replaceable sacrificial window is supplied to protect the objective lens during operation in adverse
conditions.
D. TETHERING CORD
The tethering cord enables the user to attach the compass or 3x magnifier to a button hole or belt loop to
guard against dropping or losing these items.
E. HEAD MOUNT
The head mount secures the monocular to the operator’s head for night viewing and provides freehand
support for use with a weapon, protective mask, or for other purposes in which freehand operation is
required. It is adjustable and cushioned. The thin browpad should be used for larger heads, and comes
attached to the head mount; the thick and medium browpads should be used for smaller heads, and are
stored in the carrying case.

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FIGURE 2-1. COMPONENTS OF PVS-14
HEAD/HELMET
MOUNT
ADAPTER
TETHERING CORD
WEAPON MOUNT HELMET MOUNT
HEADMOUNT
BATTERY
NECK CORD
OBJECTIVE
LENS CAP
MONOCULAR
EYEGUARD
MEDIUM AND THICK BROWPADS
CARRYING CASE STRAP
DEMIST
SHIELD
CARRYING CASE
THIN BROWPAD
LENS PAPER
OPERATOR’S MANUAL
SACRIFICIAL
WINDOW
FIGURE 2-2. OPTIONAL EQUIPMENT
ARFS3
ARFS5
ADAPTER #118
EXTENDED RAIL
ADAPTER
HARD SHIPPING/
STORAGE CASE #101
COMPASS 3X MIL-SPEC LENS 3X AFOCAL LENS
5X AFOCAL LENS
IR850-XLR DOUBLER
IR850-XLR
5X MIL-SPEC
LENS

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F. PASGT HELMET MOUNT (Part# ANHM000006)
The PASGT helmet mount secures the monocular to the Personal Armor System Ground Troops (PASGT)
helmet, allowing freehand support for use with a weapon, protective mask and/ or other purposes in
which freehand operation is required.
G. MICH HELMET MOUNT (Part# ANHM000005)
The MICH helmet mount secures the monocular to the MICH helmet, allowing freehand support for use
with a weapon, protective mask and/ or other purposes in which freehand operation is required.
H. HEAD MOUNT/HELMET MOUNT ADAPTER
The head mount/ helmet mount adapter is attached to the monocular to allow use with the head mount or
helmet mount. It allows mounting in front of the left or right eye.
I. WEAPON MOUNT (Part# ANAM000007)
The weapon mount adapts the monocular to the receiver rail as configured for the modular weapon
system kit.
FIGURE 2-3. SHIPPING AND STORAGE CASES FOR PVS-14
(SEE FIGURE 2-1. FOR DETAILS)
SHIPPING
AND
STORAGE
CASE
OBJECTIVE
LENS
EYEPIECE
LENS
POWER
SWITCH
GAIN
CONTROL
BATTERY
CAP
FIGURE 2-4. MULTI-USE NIGHT VISION MONOCULAR

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J. CARRYING CASE
The carrying case (Figure 2-3) is provided for transportation and protection of the monocular, head mount,
battery and accessories. Two slide keepers are provided for belt attachment; three D-rings are provided
for shoulder and leg strap attachment. A carrying case strap is also provided, and can be attached to the
two D-rings on the back of the carrying case.
K. SHIPPING AND STORAGE CASE
The NVMPS is supplied in a shipping and storage case (Figure 2-3).
L. COMPASS
The compass enables the operator to see azimuth readings in the monocular.
M. 3x AFOCAL MIL-SPEC LENS (Part# ANAF3X0003)
The 3x magnifier is a lens assembly which can be added to the monocular to extend the operator’s
observation ranges.
N. 5x AFOCAL MIL-SPEC LENS (Part# ANAF5X0001)
The 5x magnifier is a lens assembly which can be added to the monocular to extend the operator’s
observation ranges.
O. 3x AFOCAL LENS WITH ADAPTER (Part# ANAF3X000P)
The 3x magnifier is a lens assembly which can be added to the monocular to extend the operator’s
observation ranges.
P. 5x AFOCAL LENS WITH ADAPTER (Part# ANAF5X000P)
The 5x magnifier is a lens assembly which can be added to the monocular to extend the operator’s
observation ranges.
Q. ARFS3 (Part# ANAMRF0003)
Advanced Range Finding Stadia for 3x Afocal Lens.
R. ARFS5 (Part# ANAMRF0005)
Advanced Range Finding Stadia for 5x Afocal Lens.
S. IR850-XLR Detachable Extra Long Range Infrared Illuminator with Picatinny Adapter,
Rechargeable Battery, and Charger (Part# ANKIXLR118)
A detachable LED extra long range infrared illuminator with wide angle adjustable beam. Comes fully
assembled with a dedicated mount in order to be installed on a Picatinny/Weaver rail. Picatinny/Weaver
Adapter #118 is included.
T. IR850-XLR Afocal Doubler (Part# ANAF18XXLR)
Doubles the distance of IR850-XLR IR beam.
U. EXTENDED RAIL ADAPTER #85 (Part# ANAM000045)
Dovetail Weaver Picatinny Rail Adapter Extends 7.5“ to 11.5” Tactical Scope Mount.
V. HARD SHIPPING/ STORAGE CASE #101 (Part# ANHC000001)
A protective case used for the shipping/ storage of the PVS-14 and its accessories.

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2.1.3. EQUIPMENT DATA
The following tables provide information pertaining to the operational, electrical, mechanical, optical, and
environmental characteristics of the monocular.
TABLE 2-1. OPERATOR ADJUSTMENT LIMITS
ITEM LIMITS
Diopter Focus -6 to +4 diopters
Objective Focus 25 cm (9.8 in) to infinity
TABLE 2-2. ELECTRICAL DATA
ITEM DATA
Power Source Battery (1.5 Vdc max ea.)
Battery Requirements One AA Alkaline or one AA 1.5 Vdc Lithium L91
TABLE 2-3. MECHANICAL DATA
ITEM DATA
Shipping and Storage Case Size: Approx. 356 x 241 x 203 mm (14 x 9.5 x 8 in)
Weight: 1.09 kg (2.4 lbs.)
Carrying Case Size: Approx. 352 x 240 x 200 mm (14 x 9.5 x 8 in)
Monocular (see Note) Size: 114 x 51 x 57 mm ( 4,5 x 2,0 x 2,2 in)
Weight: 0.35 kg (12.4 oz)
NOTE:
The size of the monocular does not include lens cap and eyecup.
The weight of the monocular does not include accessories.
TABLE 2-4. OPTICAL DATA
ITEM PVS-14-40 PVS-14-51
Magnification 1x 1x
Field of View 40° 51°
Diopter Focus +2 to -6 diopters +2 to -6 diopters
Objective Focus 25 cm (9.8 in) to infinity 25 cm (9.8 in) to infinity
TABLE 2-5. ENVIRONMENTAL DATA
ITEM DATA
Monocular Operating Temperature -51°C to +49°C (-60°F to 120°F)
Monocular Storage Temperature -51°C to +85°C (-60°F to 185°F)
Illumination Required Overcast starlight to moonlight

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SECTION 3
OPERATING INSTRUCTIONS
3.1 DESCRIPTION AND USE OF OPERATOR’S CONTROLS AND
INDICATORS
NOTE:
The PVS-14 is a precision electro-optical instrument, and must be handled carefully. If the equipment
fails to operate, refer to the Troubleshooting Procedures in Chapter 4.
3.1.1. OPERATOR CONTROLS AND INDICATORS
The PVS-14 is designed to adjust for different users and corrects for most differences in eyesight. The
controls and indicators for the PVS-14 are shown in Figure 3-1, and are described in Table 3-1.
OBJECTIVE FOCUS
DIOPTER ADJUSTMENT
POWER
SWITCH
GAIN CONTROL
EYE RELIEF
ADJUSTMENT
HIGH LIGHT CUT-OFF WINDOW
IR LENS
LATCH
FIGURE 3-1. MONOCULAR CONTROLS AND INDICATORS
BATTERY POLARITY
INDICATOR (HIDDEN)

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TABLE 3-1. MONOCULAR CONTROLS AND INDICATORS
CONTROLS AND
INDICATORS FUNCTIONS
Power Switch
Controls the monocular and IR source, ON or OFF.
RESET/ OFF Same as system OFF.
Also resets monocular after high light cut-off.
ON Monocular activated.
IR/ PULL
Turn the knob clockwise to momentarily activate the IR
source. For continuous operation of the IR, pull and turn the
knob clockwise from the ON position.
CAUTION:
Do not use excessive force when operating the power switch.
Low Battery Indicator
The low battery indicator will blink on and off when there are less than 30
minutes of battery life remaining. It is visible through the eyepiece, just
outside the intensified field-of-view.
IR Source On Indicator The IR Source On indicator will blink when the IR is activated. It is visible
through the eyepiece just outside the intensified field-of-view.
Gain Control Adjusts the system gain from a minimum value of approximately 25 to a
maximum value greater than 3,000.
Objective Focus Focuses objective lens. Adjusts for sharpest image of viewed object.
Diopter Adjustment Focuses eyepiece lens for use without a need for glasses. Adjusts for
sharpest image of intensifier screen.
Eye Relief Adjustment Adjusts the distance between your eye and the monocular.
Latch Latch used for separation of monocular from head-mount/ helmet mount
adapter.
Battery Polarity
Indicators
This feature, molded into the battery housing, shows the proper orientation
of the battery. Some versions have a bubble molded into the top of the
battery house that indicates polarity.
NOTE:
Indicators showing that the battery is low and that the IR is active are both visible in the eyepiece
lens.

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3.2 ASSEMBLY AND PREPARATION FOR USE
3.2.1. UNPACKING
The following steps must be taken prior to each mission in which the PVS-14 is used.
CAUTION:
Relieve air pressure from inside the shipping and storage case by compressing opposite sides of the
case before releasing the latches.
1. Release the latch securing the top of the shipping and storage case and open it.
2. Verify that all items were shipped (see Figure 2-1).
3. Open the carrying case, remove PVS-14, and inventory the items.
4. Inspect the monocular for obvious evidence of damage to optical surfaces, body, eyecup, eyeguard,
power switch, battery cap, etc. Ensure that all optical surfaces are clean and ready for use. If
necessary, clean with dry lens paper.
3.2.2. INSTALLATION OF THE BATTERY
CAUTION:
To protect the image intensifier, keep the objective lens cap securely fitted over the lens when the
monocular is not in use or when it is being operated in daylight conditions.
The PVS-14 operates with one AA battery. The battery is not supplied with the PVS-14 and must be
obtained separately.
At operating temperatures below -20°C (-4°F), Alkaline batteries are not recommended, as the battery
life will be severely reduced. Lithium-iron disulfide L91 1.5V AA batteries should be used in conditions
below -20°C (-4°F).
TABLE 3-2. ESTIMATED BATTERY LIFE
BATTERY TYPE TEMPERATURE NEGLIGIBLE IR SOURCE
USAGE
IR SOURCE USAGE
10% OF THE TIME
AA Alkaline 21°C (70°F) 60 Hrs 55 Hrs
AA Lithium L91 21°C (70°F) 70 Hrs 65 Hrs
AA Alkaline -20°C (-4°F) 12 Hrs 10 Hrs
AA Lithium L91 -20°C (-4°F) 60 Hrs 55 Hrs
CAUTION:
Verify that the device is OFF before installing the battery.

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Install the AA battery into PVS14 as follows.
1. Unscrew the battery cap.
2. Align the polarity markings on the battery with those etched onto the battery compartment.
3. Replace the battery cap and tighten it.
3.2.3. INSTALLATION OF THE EYECUP OR EYEGUARD
Perform the following procedure to install eyecup or eyeguard onto the monocular. Refer to Figure 3-2.
1. Carefully press the eyecup or eyeguard over the end of the eyepiece lens.
2. Rotate the eyecup or eyeguard into proper viewing position. Adjust for the best fit. The eyecup must
seal around your eye, preventing the green glow from leaking out.
3.2.4. INSTALLATION OF THE DEMIST SHIELD
Perform the following to install the demist shield on the eyepiece lens. Refer to Figure 3-2.
CAUTION:
If the demist shield needs to be cleaned, refer to paragraph 4.4.1 for instructions. Do not attempt to
clean the demist shield while it is wet, or using wet lens paper; doing so will damage the coating.
NOTE:
If inclement operating conditions are expected, (e.g. significant temperature changes, high humidity,
etc.), install the demist shield prior to the mission in order to reduce lens fogging.
1. Carefully remove the eyecup or eyeguard.
2. Carefully press the demist shield onto the eyepiece. Be careful not to smudge the eyepiece lens or
demist shield with your fingers or hands.
3. Replace the eyecup or eyeguard (see paragraph 3.2.3).
BATTERY
BATTERY CAP
SACRIFICIAL
WINDOW
EYECUP
EYEGUARD
DEMIST
SHIELD
FIGURE 3-2. BATTERY, EYECUP AND EYEGUARD INSTALLATION

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3.2.5. INSTALLATION OF THE SACRIFICIAL WINDOW
Perform the following to install the sacrificial window. Refer to Figure 3-2.
CAUTION:
If adverse operating conditions (e.g., large amounts of dust or sand) are expected, attach the
sacrificial window prior to the mission to protect the objective lens from scratches or other damage.
1. If the objective lens cap is in place, remove it.
2. Carefully push the sacrificial window onto the objective lens until it stops. Turn the sacrificial
window clockwise until it snaps into place.
3.2.6. INSTALLATION AND ADJUSTMENT OF THE HEAD MOUNT
Perform the following to install the head mount.
NOTE:
Do not put the head mount on with the monocular attached.
1. Before putting the head mount on, loosen the four ends of the chinstrap (approximately two inches
from the sliding bar buckles; see Figure 3-3).
NOTE:
If the head mount is too loose, remove the attached thin browpad (Figure 3-3) and replace it with
either the medium or thick browpad (these are stored in the carrying case). Refer to paragraph 4.4.2
for removal and replacement of the browpads.
VERTICAL
ADJUSTMENT
(HIDDEN)
NECK PAD
CHINSTRAP
ADJUSTMENT
AND SNAP
SLIDING BAR
BUCKLES
CHINSTRAP
ADJUSTMENT
AND SNAP
CHIN CUP
HEADBAND
EYE RELIEF
ADJUSTMENT
HEADMOUNT
SOCKET
BROWPAD (THICK,
MEDIUM OR THIN)
CHINSTRAP
ADJUSTMENT
CHINSTRAP ADJUSTMENT CROSS-STRAP
FIGURE 3-3. PVS-14 HEADMOUNT ADJUSTMENTS

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2. Snap the front and rear clasps (Figure 3-3) into place.
3. Using both hands, grab the neck pad (Figure 3-3) and pull the harness over your head, sliding the
neck pad down over the back of your neck.
4. Holding the chin cup in position, adjust both sides of the chinstrap until you feel it lightly press
against your chin. DO NOT TIGHTEN.
5. Maintain the position of the chin cup and remove any slack from the chinstrap. DO NOT TIGHTEN.
6. Ensure that the cross-strap is not twisted. Remove any slack by adjusting the vertical adjustment of
the neck pad.
7. Adjust the chinstrap and vertical adjustment until the chin cup and headband are in a comfortable
but firm position.
NOTE:
After installing the monocular, minor strap adjustments may be necessary to achieve maximum
comfort.
8. Install the head mount/ helmet mount adapter (refer to paragraph 3.2.7).
9. Refer to paragraph 3.3.2 for operating procedures.
3.2.7. INSTALLATION OF THE HEAD MOUNT/ HELMET MOUNT ADAPTER
To install the head mount/ helmet mount adapter (Figure 2-1) to the monocular, align the thumbscrew
to the hole and tighten it as shown in Figure 3-4. An alignment boss on the head mount/ helmet mount
adapter fits into a groove on the monocular. Ensure that the boss on the adapter fits into the groove on
the monocular.
3.2.8. INSTALLATION OF THE HELMET MOUNT TO A HELMET
1. Remove the helmet mount from the carrying case. Refer to Figure 3-5 for helmet mount features.
2. Press the release (Figure 3-6) to remove the mount from the helmet mount bracket.
3. Verify that the strap is laced onto the helmet mount bracket, as shown in Figure 3-5.
LATCH
ALIGNMENT BOSS
(HIDDEN)
ALIGNMENT BOSS
GROOVE
THUMBSCREW
FIGURE 3-4. HEADMOUNT/HELMET MOUNT ADAPTER INSTALLATION

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KEEPER HELMET MOUNT
BRACKET CATCH
BUCKLE
LEVER
STRAP
REAR
SNAP
REAR
MOUNTING
HOLE
REAR
BRACKET
NAPE
STRAP
FIGURE 3-5. INSTALLATION OF HELMET MOUNT
4. With the catch pushed forward (see Figure 3-5), place the strap over the top of the helmet center
(see Figure 3-6).
5. Hook the rear bracket (see Figure 3-5) on the center of the back of the helmet. Lay the strap, now
hooked to the helmet mount bracket, over the top of the helmet.
6. Hook the helmet mount bracket to the center of the front lip of the helmet and hold it in place (see
Figure 3-6).
TOP EDGE OF MOUNT
MOUNT
RELEASE
KEEPER
HELMET MOUNT
BRACKET
STRAP
MOUNT IS ROTATED
90° FOR CLARITY
FIGURE 3-6. HELMET MOUNT
7. With the buckle lever open, use the catch to remove the slack in the strap. Close the buckle lever.
8. Disengage the neck strap latch on the left side of neck strap.
9. Put the helmet on. Do not fasten the helmet chinstrap.
10. Hold the neck strap where the strap meets the latch. Tighten the strap until it fits securely, then
install and tighten the helmet chinstrap. The brow of the helmet should be parallel to the ground,
and the helmet should be stable on the head.

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11. Insert the top edge of the mount under the keeper on the helmet mount bracket and rotate it
downward until the latch engages (see Figure 3-7). To release the mount from the helmet bracket,
press the release and pull it forward and down.
3.2.9. INSTALLATION OF THE HEAD MOUNT WITH A PROTECTIVE MASK
Perform the following to put the head mount on with a protective mask.
1. Place the protective mask on your head per the instructions provided with the protective mask.
WARNING:
When installing the head mount over the protective mask, be careful that you do not break the
mask’s seal around your face.
2. Install the head mount per the instructions in paragraph 3.2.6.
NOTE:
It may be necessary to remove the browpad when wearing the head mount over a protective mask.
3.2.10. INSTALLATION OF THE WEAPON MOUNT
Perform the following to install the weapon mount.
CAUTION:
The PVS-14 is not a weapon sight. However, it can be used in conjunction with a collimated dot sight
or laser aiming device.
NOTE:
Armasight recommends replacing the eyecup with an eyeguard if mounting the device on a weapon.
1. Adjust the monocular and weapon mount as shown in Figure 3-8. Be sure to align the alignment boss
on the weapon mount with the alignment groove in the monocular.
TOP EDGE OF MOUNT MOUNT
RELEASE
KEEPER
HELMET
MOUNT
BRACKET
LATCH
FIGURE 3-7. REASSEMBLY OF HELMET MOUNT