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ARTICLE �PN��0Service manual

ASCHE3.8�2.075 RE

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CONTENTS PageIntroduction 41Descriptionandoperation 5�.� Purpose 5�.2 Specifications 5�.3 Complete set 6�.4 Design and operation 7�.5 Measuring tools, tools and accessories 9�.6 Designation and seals �0�.7 Package �02Intendeduse �02.� Equipment limitations �02.2 Preoperation instructions ��2.3 Placing and mounting �22.4 Preparation for shooting and adjusting of the sight, �2 mounted on grenade launcher by the board 2.5 Adjusting of the sight, mounted on grenade launcher �3 by the remote point 2.6 Range finding with the sight �42.7 Operation with the sight �43Maintenance �63.� General instructions �63.2 Safety �73.3 Maintenance procedure �73.4 Preservation (depreservation, represervation) 224Repairinservice 234.� General instructions 234.2 Trouble-shooting 245Storage 256Transportation 257Utilization 25 AppendixА List of illustrations 26

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INTRODUCTION

The Service manual is intended for studying the mechanism and operating instructions of the article �PN��0.

This service manual contains purpose, specifications, information about mechanism and operating principles of the article �PN��0, that are essential for correct use and complete utilization of its technical capabilities. Also there are a list of possible malfunctions and methods of their elimination with the help of single STA kit.

While studying the article �PN��0, it is necessary to follow the below mentioned documentation:

“Service manual for manual anti-tank grenade launcher RPG-29” (in set of grenade launcher);

“Charge unit. Service manual AL4.799.00�RE”;“Service manual for group STA kit ASCHE3.8�2.075 II”*.

Listofabbreviations

NNI – Natural night illumination;

IZP – Individual zeroing point

RP – Refference point

MPI – Mean point of impact

CI – Control inspection

DM – Daily maintenance

M.-� – Maintenance procedure N�

M.-2 – Maintenance procedure N2

M.-�h – Storage maintenance procedure N�

M.-2h – Long storage maintenance procedure N2

STA – Spare parts, tools and accessories

IIT – Image intensifier tube

YЗ – Charge unit

YK-3�6 – Battery tester

* Delivered with single STA kit.

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1DESCRIPTIONANDOPERATION

1.1Purpose

�.�.� The article �PN��0, complete name - modular night vision sight for manual anti-tank grenade launcher RPG-29, index �PN��0 (hereinafter referred to as the sight) is intended for battlefield observation, detection, targets recognition and aimed shooting with grenade launcher RPG-29 under natural night illumination conditions.

�.�.2 The sight is designed to operate at an ambient temperature range of -50 °С to +50 °С and relative humidity up to �00% at +25 °С.

1.2Specifications

�.2.� Specifications of the sight should be as indicated in table �.

Table �

Designation Value Note

Recognition range, m 600

Visible magnification, x, not less 3.7

Angular field of view in the object area, not less 9 о

Eye relief, mm, not less 50

Range of boresight aligment:in elevation ±0-08in direction ±0-08

Range of entering temperature corrections:«0» from -�5

to +�5 °С

«–» from -�5 to -50 °С

«+» from +�5 to +50 °С

Battery voltage, V �.2-�.5Maximum consumption current, mA �20Continuous operation time, h, for temperatures:

t = + 50 оС �0t = - 40 оС 3t = - 50 оС 0.5

Weight, kg:on the weapon �.65carrying set 2.25transport set 8.5

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Continuation of the table �

�.2.2 The sight provides target detection, recognition and aiming shooting within direct firing range under natural night illumination conditions.

The recognition range for tank-sized target, provided by the sight, depends on natural night illumination, atmosphere transparency and target/background contrast. High ambient illumination, moonlit night, some external booster light, light background (sand or snow) increase the recognition range. Low ambient illumination, low clouds, low atmosphere transparency and dark background (tillage, forest etc.) decrease the recognition range.

1.3Completeset

�.3.� The delivery set must correspond to the table 2.

Table 2

Designation Name Qty Note

ÀSCHЕ3.8�2.075 Article �PN��0 � Without NLTs-0.9-�

NLTs-0.9-� accumulator �

Spareparts

NLTs-0.9-� accumulator 2

Removableparts

ÀL8.647.�36 Eyeshade �

R6 (AA) battery � *

Tools

ASCHE8.392.007 Spanner

*Is supplied if mentioned in the supply contract.

Designation Value Note

Overall dimensions of the sight, mm:length 280width 92height �65

Overall dimensions of the case, mm:length 550width 400height �60

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Continuation of the table 2

1.4Designandoperation

�.4.� The operating principle of the sight is based on the intensification of the low brightness image, created by objective lens on the photocathode of image intensifier tube (IIT), into the image with the brightness, sufficient for examination through the eyepiece.

The main power supply of the sight is NLTs-0.9-� accumulator, the backup power supply is R6 (AA) battery.

�.4.2 The sight consists of three main units: objective lens 2 (Figure A.3a), body 4 and mount �8.

All components of the sight with the exception of objective lens are placed in the body 4. Optical details of the objective lens 2 are in their own frame, attached by means of threaded joint and secured with the ring 3.

�.4.3 The sight has the following controls:– switch �5 for turning on and off;– reticle brightness adjustment handwheel �6, marked with “ “;– index 5 and scale 6 of the input mechanism of temperature corrections;

Designation Name Qty Note

Accessories

ÀL5.087.326 Power supply � Y3

ÀL5.�2�.�6� Charge unit � Y3

ÀL5.�00.062 YK-3�6 battery tester �

ÀL6.644.493 Cable � Y3

ÀL8.890.00�-0� Napkin 3

ÀSCHЕ5.940.09� Light filter � On the Article �PN��0

Package

ÀSCHЕ4.�65.035 Carring bag �

ÀSCHЕ6.875.022 Case �

Documentation

ÀSCHЕ3.8�2.075 RE Article �PN��0. Service manual

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ÀSCHЕ3.8�2.075 FO Article �PN��0.Logbook

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ÀL4.799.00� RE Charge unit set. Service manual

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– handwheel 7 of the alignment mechanism in elevation and entering temperature corrections, marked with “U↔D”;

– screw ��, marked with “L↔R” on the nut of the alignment mechanism in direction.

With setting the switch �5 to upper position, the source voltage will be supplied to IIT and to illumination of the reticle.

Aiming marks and strokes of the reticle shine with red light against yellow-green background of the IIT screen illumination. The necessary brightness of the aiming marks and strokes of the reticle are regulated by handwheel �6.

Light filter � is used to protect the IIT from light overworking higher than �0-� lk and for adjusting the sight under both daylight and twilight conditions.

�.4.4 The body 4 has the battery compartment closed with the cap �2 and the nipple, intended for purging the interior space of the sight, covered with the cap � and the rubber gasket (Figure A.3b).

In order not to lose the cap �2 (Figure A.3a), it is fastened to the body 4 with a lead �4.

�.4.5 The collar 8 fastens the eyeshade 9 to the eyepiece of the body 4. The eyeshade guides an eye to exit pupil position of eyepiece and protects it against accidental injuries, and headrest �0.

�.4.6 Positive polarity “+” of battery and power supply is engraved on the body 4 under the eyepiece to provide the proper replacement.

�.4.7 The sight is mounted on a weapon with the aid of a special seat according to the figure A.3b

�.4.8 The figure A.4 presents the aiming reticle of the sight. Aiming marks and strokes are shown in the field of view.

The reticle has following scales:– the scale of aiming angles A;– the scale of sides adjustments B; – distance-measuring scale C.The scale of vertical aiming angles A is a vertical number of aiming signs

with the appropriate values of distance:– the first aiming sign in form of vertical stroke serves for aiming by its apex

to the distance of �00 m, by its basis to �50 m;– the second aiming sign in form of vertical stroke serves for aiming by its

apex to the distance of 200 m, by its basis to 250 m;– the third, the fifth and the sixth aiming signs in form of angles serve for

aiming to the distance of 300 m (direct shot), 500 and 600 m;– the fourth aiming sign in form of vertical stroke serves for aiming by its

apex to the distance of 400 m, by its basis to 450 m;– between the fifth and the sixth aiming signs there is an unofficial aiming sign

in form of vertical stroke serves for aiming by its apex to the distance of 550 m.

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Above the scale of aiming angles is marked the sign of “+”, that is used for checking the zero line of sighting.

The vertical strokes, marked to the right and to the left of the aiming signs (started from 300 m), form the scale of sides adjustments B. The distance between two strokes of the scale B corresponds to 0-�0.

The numbering of the scale B is marked from below on both sides of the scale A and is designated by numbers �0, 20, 30, 40.

The distance-measuring scale C, located from the right and the left sides of the scale A, is executed in the form of the broken curves. It is intended for measuring of the distance to the target of “tank” type along the length 7.8 m and makes it possible to set the aiming angel at the moment of measuring distance.

�.4.9 The handwheel 7 (Figure A.3a) allows to change the line position of sighting, taking into account ambient temperature.

The signs “+”, “0”, “-” are marked on the scale 6, rigidly connected with the handwheel 7. Sign “+” corresponds to the air environment within temperature range of +�5 °C to +50 °C. Sign “0” corresponds to the air environment within temperature range of -�5 °C to +�5 °C. Sign “-” corresponds to the air environment within temperature range of -�5 °C to -50 °C.

Sign, corresponded to the air environment temperature, have to be combined with index 5. Thus, the temperature corrections are put in.

1.5Measuringtools,toolsandaccessories

�.5.� The power supply � (Figure A.�), charging unit 2 and cable 3 are used for charging the NLTs-0.9-� accumulator.

�.5.2 The eyeshade 4 is intended for working with the sight under conditions, where a high level of masking do not required.

�.5.3 The spanners 6 is intended for turning the screw �� (Figure A.3a) of adjustment mechanism, tighten and untighten the screws, which fasten the scale 6 and handwheel 7.

�.5.4 The napkin 5 (Figure A.�) is for cleaning the outer optical surfaces and the contacts of battery compartment, Y3, YK-3�6 and power supply with insignificant soiling.

�.5.5 The R6(AA) battery 7 is intended for sight operation in case of NLTs-0.9-� accumulator is discharged.

�.5.6 The battery tester 9 (hereinafter – YK-3�6) is designed to check the NLTs-0.9-� accumulator and R6(AA) battery voltage.

The front board of YK-3�6 battery tester has four light emitting diodes indicating corresponding voltage of tested battery.

To define the battery charge level, install the battery as indicated on the body of YK-3�6. The light diode will show the battery charge level.

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�.5.7 The carrying bag 8 (Figure A.2) is intended for stowage and carrying the sight with a minimum of the STA kit according to 2.7.3.

�.5.8 To measure the illumination at the place under M.-2 is necessary to use Landolt’s ring, whose dimensions are indicated in the Figure A.5. The Landolt’s ring have to be drawn on the thin plywood board (3mm thick) or on the thick cardboard. Color of the panel is white, color of the ring is black.

�.5.9 The aligning target (Figure A.6) is used for the sight adjustment.

1.6Designationsandseals

�.6.� The mount �8 (Figure A.3a) of the sight has the following designations:

– index of the sight;– trademark of the manufacturer;– serial number of the sight.�.6.2 The cover of case � (Figure A.2) has the index and serial number of

the sight.�.6.3 The case with the sight, single STA kit and service documents is secured

with seals.

1.7Package

�.7.� Case � is used for transportation and storage of the sight with single STA kit and service documentation.

�.7.2 The sight with installed light filter, charge unit and service documentation with the rest set are placed in the appropriate nests of the case, according to the list of enclosure.

Before packing, sight components and components of the kit with spare parts, tools and accessories should be thoroughly cleaned and wiped.

�.7.3 When supplied from the manufacturer and before setting for short-term and long-term storage, packaging of the sight and single STA kit are carried out with the preservation (according to 3.4) and sealing.

2INTENDEDUSE

2.1Equipmentlimitations

2.�.� In order to prevent a damage of the sight itisforbidden:– activate the sight in daytime or twilight without light filter � (Figure. A.3a)

attached; ATTENTION!Daylightdamagesthesight!– do not aim the sight at bright light sources (fires, searchlight, headlights

etc.) even with the light filter attached.

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2.�.2 In case a bright source appears in the field of view, turn off the sight by putting the switch �5 in low position.

2.�.3 After operation, the sight must be turned off.2.�.4 Avoid a short circuit between contacts of battery through metal

objects.2.�.5 It is recommended to take a battary out of the sight and keep them in a

pocket of the uniform before and after work with the sight to avoid unintended turning on of sight power. In case the ambient temperature is below zero, this action helps extend the operating time of the sight.

2.2Preoperationinstructions

2.2.� Study mechanism of the sight, its placing and mounting on the grenade launcher.

2.2.2 Survey the location at daytime for easier observation of the battle field and aiming with the help of the sight at night.

2.2.3 The sight delivered from storage facility must be depreservated according to 3.4 before use. Clean outer optical surfaces with napkin 5 (Figure A.�).

2.2.4 In case when masking or black-out battle task are not required, set the eyeshade 4 on the sight as follows:

– loosen collar 8 (Figure A.3a);– remove eyeshade 9 with the collar 8;– take eyeshade 4 (Figure A.�) from the single STA kit;– place eyeshade 4 on the eyepiece holder, having slightly stretched it;– put the collar 8 (Figure A.3a) on the eyeshade 4. 2.2.5 In case there is no charged NLTs-0.9-� accumulator, use the R6 (AA)

battery as a power source. Perform replacement as follows:– turn off the sight;– screw off cap �2;– remove the spent accumulator from the sight;– take the R6 (AA) battery 7 (Figure A.�) from the STA kit and insert it into

the sight observing the polarity marked on the body 4 (Figure A.3a);– screw back the cap �2;– turn the sight on, check its operation and turn off.The discharged accumulator can be loaded to the total capacity with the

aid of the existing in STA kit charge unit (hereinafter referred to as Y3) in accordance with service manual AL4.799.00� RE and insert into the sight, as it was described above.

2.2.6 In case of using a gas-mask, remove the eyeshade 9 from the sight together with collar 8 by loosen it.

ATTENTION! Image of aiming reticle indicates the charge of accumulator. If the image intensifier operates but the reticle is dim or invisible, the battery is discharged and it is necessary to replace it.

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2.3Placingandmounting

2.3.� The sight is installed on a grenade launcher, on a special dovetail type seat (Figure A.3b). During the installation, it is necessary to align the slot of the clamp device of the sight mount 2 with the dovetail type seat 3 of the grenade launcher, move the sight forward till stop and fix it, having turned handle 6 forward to complete fixation by the protrusion against mount �7 (Figure A.3a) of the sight. The sight must be securely fastened onto the seat of the grenade launcher.

To adjust the clamp device of the sight to the weapon, it is necessary to shift the latch 4 (Figure A.3b) with the spanner 6 (Figure A.�) from under the head of the screw 5 (Figure A.3b) and remove it, then reset the handle 6 by such number of teeth, that would provide secure fastening, excluding swaying of the sight on the grenade launcher and set the latch 4 to its place.

2.4Preparationforshootingandadjustingofthesight,mountedongrenadelauncherbytheboard

2.4.� General instructions:– select a place for grenade launcher and occupy it;– rigidly fasten the grenade launcher (preferred on the special machine);– put the case with sight at the left from the grenade launcher such as the

cover of the case would be opened to the left;– remove the sight from the case and ensure the light filter � (Figure A.3a)

is attached to the sight;– unscrew cap �2 and insert R6 battery;– fully tighten the cap �2;– mount the sight onto the seat of the grenade launcher according to 2.3;– turn on the sight by putting switch �5 to upper position, after �-4 seconds

the screen of image intensifier will shine with yellow-green and the reticle aiming marks with red;

– adjust the brightness of the reticle aiming marks by turning the handwheel �6.

2.4.2 During the sight adjusting use “Service manual for manual anti-tank grenade launcher RPG-29”

The adjusting of the sight consist of alignment zero line of sighting with direction of the bore of grenade launcher and is made by aligning target (Figure A.6), painted on a board.

2.4.3 For adjusting the sight by aligning target, perform the following:– set the mechanism of temperature corrections on “0”;– stretch two mutually perpendicular threads onto the muzzle along the

hairlines;

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– put diopter into the barrel (diopter is included in the grenade launcher set);

– place the aligning target in front of the grenade launcher at distance of �5 m.;

– combine the barrel cross with the cross center of APG (aiming point of grenade launcher) on the aligning target, observing through the diopter;

While observing through the sight, the sign “+” on the reticle should coincide with the cross center of APS (aiming point of the sight).

If sign “+” do not coincide with APS, perform the following:– combine sign “+” on the reticle with APS in direction by turning the screw ��

(Figure A.3a) with the help of spanner 6 (Figure A.�);– combine sign “+” on the reticle with APS in elevation as follows: perform

0.5-� turn of two screws which strengthen handwheel 7 (Figure A.3a) and scale 6 with the help of spanner 6; holding the scale 6 in “0” position, coincided with stroke of index 5 and by turning handwheel 7, combine sign “+” of the reticle with APS, fix the handwheel 7 by fully tighten two screws, check the coincidence of crosses of the sight and of the aligning target.

While adjusting the sight, it is necessary to check periodically the correctness of grenade launcher barrel aiming at the aiming point (APG).

2.5Adjustingofthesight,mountedongrenadelauncherbytheremotepoint

For adjusting the sight by remote point, it is necessary to perform the following:

– set the mechanism of temperature corrections on “0”;– stretch two mutually perpendicular threads onto the muzzle along the

hairlines;– put diopter into the barrel;– aim the barrel cross of grenade launcher to the remote point (apex of

post, angel of the building and etc.) located at not less than 500 m., observing through the diopter;

– sign “+” on the reticle should be coincided with remote point, while observing through the sight;

In case impossibility to perform above mentioned requirements, provide adjusting of the sight according 2.4.3 of current RE.

While adjusting the sight, it is necessary to check periodically the correctness of grenade launcher barrel aiming at the aiming point.

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2.6Rangefindingwiththesight

2.6.� To determine the distance (range) to the target under scale C, it is necessary to perform the following:

– dispose the target image between the broken curves (with determination of the range to the target with length of 7.8 m)

– determine the range to the target, by taking the reports from the vertical line of numbers, marked on the right from the scale B on the level of contact points of external image edge of the target with the broken curves of the scale B. The numbers �, 2, 3, 4, 5, 6 corresponds to the ranges of �00, 200, 300, 400, 500, 600 m. to target.

2.7Operationofthesight

2.7.1Generalinstructions

2.7.�.� Success of battle field observation and aimed firing with the help of the sight depends on the experience in observations as the image contrast and the sight and target coloring during observation using the sight differs greatly from the image contrast and the sight and target coloring during naked eye observation.

When observing and searching a target through the sight, minimal brightness of aiming reticle is recommended.

2.7.�.2 To avoid the possibility of damaging the sight, practice studies with the sight (3-5 will be enough) should be carried out at illumination only below 5x�0-3 lx of natural night illumination till obtain enough practical skills of using the sight (3-5 sessions).

2.7.2Operationontheweapon

2.7.2.� Turn on the sight.2.7.2.2 Determinedistance to the target according to range scale of the sight,

when the target lenght isknown (7.8 m) or with the help of the range-finder. 2.7.2.3 Accomplish aiming to target by aiming grenade launcher with the

sight in elevation and in direction with one of thw reticle aiming signs of the scale A, which corresponds to the target range (under shooting without side prediction) or apex of one of the strokes of the scale B, which corresponds to the target range (under shooting with side prediction), combine with the aiming point.

2.7.2.4 Selection of aiming point and determination of the correction for the crosswind and moving of the target is made according to the rules, described in “Service manual for manual anti-tank grenade launcher RPG-29”.

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2.7.2.5 Aiming correction to the target in horizontal direction is conducted with the help of the scale of sides adjustments B.

2.7.2.6 Firing at the transverse moving target is conducted either by tracking or ambush methods (firing attack). The aiming point can be shifted using the aiming sign.

2.7.2.7 For ambush method, use the strokes of the scale of sides adjustments of the reticle as a predetermined engagement point (instead of aiming point chosen by landscape).

In case of fast-moving target, the predicted interval is proportional to the target speed.

To repeat shooting with the ambush method, transpose the grenade launcher ahead of the target and repeat shot at the moment the target approaches.

2.7.3Preparationofthesightfromfiringpositionforcarryingandtransportationpositions

2.7.3.� Prepare the sight from firing position for carrying in the following order:

– turn off the sight (by setting the switch �5 (Figure A.3a) at the bottom position);

– attach the light filter � to the sight if worked without it;– unscrew the cap �2, remove the power source and place it into the bag 8

(Figure A.2);– screw back the cap �2 (Figure A.3a);– remove the sight from the weapon and pack it into the bag 8 (Figure A.2).The napkin 5 (Figure A.�), spanner 6 and two accumulators 8 from the STA

kit should be also packed into the bag 8.2.7.3.2 Prepare the sight from firing position to the transportation position

in the following order:– turn off the sight (by setting the switch �5 (Figure A.3a) at the bottom

position);– attach the light filter � to the sight if worked without it;– unscrew the cap �2, remove the power source and place it into the nest of

the case � (Figure A.2), according to the list of enclosure;– screw back the cap �2 (Figure A.3a);– remove the sight from the weapon and pack it into the case � (Figure A.2),

according to �.7;– fully STA kit should be placed it into the case in accordance with �.7 and

with list of enclosure.

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3MAINTENANCE

3.1Generalinstructions

3.�.� Keep the sight clean, prevent it against dust or dirt. Outer optical surfaces must be always clean.

To clean the outer optical surfaces and contact grounds of the sight, YK-3�6 and power supply use bleached flannel, hydroscopic optical cotton wool, refined ethyl alcohol of high grade, narcosis ether or mixture (�0% alcohol with 90% ether).

To clean a glass surface against grease stain, wipe it with clean flannel or cotton wool. In the case of severe dirtying, clean the surfaces by means of a solvent (alcohol, ether or their mixture) in the following order:

– prepare a cotton wool swab with wood stick;– wet the swab with the prescribed solvent and shake up it to remove an

excess;– wipe the glass with wetted swab more than once avoiding touching the

mounting;– wipe the glass with dry swab with circular motions from center to periphery.

Finish cleaning.Avoid wetting of mounting with solvent because it can solve the sealing

compound and break tightness of the sight.Clean the contact grounds and contacts of storage battery against corrosive

stains in the same way.3.�.2 In order to keep the sight in constant operational readiness, increase

reliability, prolong the repair-to-repair period and also to timely detect and eliminate some causes that lead to premature wear and damage of subunits and parts, it is necessary to conduct the following checking and maintenance of the sight in time.

Technical maintenance of the sight is intended for implementing preventive measures for long time storage and elimination of damages, found while observing.

The maintenance system includes the following procedures:– control inspection (CI);– daily maintenance (DM);– maintenance procedure № � (M.-�);– maintenance procedure № 2 (M.-2);– storage maintenance procedure № � (M.-�h);– long storage maintenance procedure № 2 (M.-2h).

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3.2Safety

3.2.� Ensure the secure mounting of the sight on the grenade launcher in order to avoid personal injuries during its exploitation.

3.2.2 Avoid an excessive pressure to eyeshade when viewing. The eyeshade can be pressed only until clear boundary of the field of view appears in order to avoid eye injuries during fire.

3.3Maintenanceprocedure

3.3.1Strictureofthemaintenanceprocedure

Maintenance procedure stricture is indicated in the table 3.

Table 3

3.3.2Controlinspection

3.3.2.� The CI is intended for preparation the sight for use, includes a visual inspection of outer surfaces, operation test and elimination of revealed deficiencies.

The inspection is carried out by the personnel that uses the sight with the help of single STA kit.

During the CI make the checking in accordance with table 4.

Type of maintenance

Terms of maintenance

service short-termstorage

long-term storage

CI Before using the sight

DM � After each using.2 Once per two week if the sight was unused

M.-� � After acceptance. 2 Not less than once in a year

At placing in storage

M.-2 � After �000 hours of operation2 After replacement of image intensifier tube ASCHE5.305.�43, taken from the group STA kit

At placing in storage

M.-�h After 6 month

Yearly

M.-2h Once per two year

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Table 4

What is checked and with the help of what tool, instruments and equipment.

Methods of testingEngineering requirements

Make sure the sight set is complete by comparing the list of sight parts in the table 2 ASCHE3.8�2.075 FO with the available parts

The list should correspond to the table 2 ASCHE3.8�2.075 FO

Inspect the sight and single STA kit visually

External surfaces should be free of cracks, indents, corrosion and other defects

Make sure the sight is reliably mounted on the grenade launcher by swinging

Rocking of the sight, mounted on the grenade launcher, is not allowed

Inspect the optical surfaces of the sight, light filter � (Figure A.3a)

External and inner surfaces of optical units should be free from mechanical damages, fat stains and other sediments

Inspect the contact grounds of sight and storage battery visually

Contacts of battery and contact grounds of the sight should be free of oxidation and other sediments

Turn on the sight (light filter � must be attached) with switch �5 (Figure A.3a) to check its operability

Image in the eyepiece should slightly shine

Test the reticle brightness adjustment and purity of image observing through the eyepiece as follows: attach the light filter �, turn on the switch �5 (upper position) and smoothly rotate the handwheel �6

Brightness of aiming reticle should change and its contrast should be enough for its easy detection

Check the voltage of accumulator 8 (Figure A.�) and battery 7 by YK-3�6 battery tester

The voltage of accumulator 8 and battery 7 should be within �.2-�.5 V

The period of storage and operation of the accumulator (manufacture date is marked on the body)

The period of storage and operation of the accumulator is 5 years

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3.3.3Dailymaintenance

3.3.3.� The daily maintenance (DM) is intended to ensure regular readiness of the sight, to check out functioning of the main systems and mechanisms and also to eliminate the deficiencies, revealed with CI.

The DM of the sight is carried out by infantry unit personnel in the hours and days prescribed by daily routine and after shooting.

3.3.3.2 The DM includes condition inspections and operation tests, according to the table 4.

In the case of need, it also involves the works, prescribed in the table 5.

Table 5

3.3.4M.-1Maintenanceprocedure№1

3.3.4.� The M.-� is intended to ensure the readiness of the sight and UV article in service.

The M.-� is carried out by infantry unit personnel. In the case of need a specialist of technical servicing facility can participate.

3.3.4.2 The M.-� involves all procedures of DM and additionally provide the repair and painting of the case � with ML-�65PM camouflage enamel.

Work and procedure of it conducting

Requirements Devices, tools and

materials

Wipe the sight, Y3, YK-3�6 battery tester and case against dust, dirty and moisture

The sight, Y3, YK-3�6 battery tester and case should be clean

Rags

Clean contact grounds of the sight, Y3, YK-3�6 battery tester and power supply. Procedure in accordance with 3.�.�

Contacts should be clean Tools and materials ac-cording to 3.�.�

Clean external optical surfaces. Procedure in accordance with 3.�.�

External optical surfaces should be clean

Tools and materials ac-cording to 3.�.�

Charge accumulators 8 (Figure A.�) according to the service manual o f c h a r g i n g u n i t AL4.799.00� RE

Accumulator should be fully charged. Not less then once in a month provide discharge and charge of accumulators

Charge unit AL4.799.00�

Clean from dirt and dry up the bag 8 (Figure A.2)

The bag should be dry and clean

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In the case of trouble that can not be eliminated by means of single or group STA kit, send the sight to repair shop.

3.3.4.3 For short-term storage of the sight, the following works should be done:

– remove accumulator from the sight;– preserve the sight with the single STA kit and service manual in accordance

with 3.4.After M.-� make a record in the logbook ASCHE3.8�2.075 FOThe sight with the STA kit place into the case, according �.7.

3.3.5M.-2Maintenanceprocedure№2

3.3.5.� The M.-2 restores readiness of the sight after expiration of specified operating time or after replacement of worn-out parts.

The M.-2 is carried out by technical servicing staff on the basis of singe and group STA kits and general-purpose tools.

3.3.5.2 The M.-2 consists of the works, listed in the M.-� and additionally indicated in the table 6.

Table 6

Make the recognition range test with UKNP-�M collimator, if necessary the test can be carried out in a place, as indicated below.

3.3.5.3 Recognition range on site should be tested at night, using a real target (like tank) in the following conditions: natural night illumination (3-5)�0-3 lux, in absence of rain, fog, snowfall.

Values of target recognition range, depending on the background, are given in table 7.

Table 7

Work and procedure of it conducting Requirements Tools and materials

Test the recognition range

According to 3.3.5.3

Refresh the paint coat of the sight if damaged

A damage of paint coating is not allowed

ML-�65 PM black enamel

Background Recognition range, m, at least

Green grass, open area 600Snow, open area 600

Yellow grass (sand) 350

Coniferous forest 90

2�

The distance from a coniferous forest to the target should be at least 25 m. Start checking recognition range on site with illumination of (�–5)×�0-2 lux

and observe till it reduces to (3–5)×�0-3 lux. Take readings of illumination every 5 minutes.Measure the terrain illumination by means of Landolt ring (Figure A.5). The measuring is carried out by two people – one is an operator, the other is

an observer. The observer’s position is at the place of testing. The operator with the Landolt ring goes away from the observer for �5-20 min in the direction of the target and turns in the direction of the observer. Then he rotates the board around the ring axis and stops it;

The observer has to define the direction of the gap in the ring. If the observer determines it correctly, the operator goes further away from the observer. If the observer makes a mistake, the operator comes closer. The testing is repeated, all the times changing rotating angle of the board;

Determine the longest distance, at which the observer determines the direction of the gap position correctly.

Then, according to the chart in figure A.7, find illumination that corresponds to this distance.

The sight is considered serviceable if it recognizes direction of turning tank turret (according to barrel direction) within 3 sec. in prescribed conditions with probability of 0.8 after illumination of (3-5)x�0-3 lux is set.

3.3.5.4 For long-term storage of the sight, except already indicated works, the following works should be done:

– remove accumulator from the sight;– preserve the sight with the single STA kit and service manual in accordance

with 3.4.After M.-2 make a record in the logbook ASCHE3.8�2.075 FOThe sight with the STA kit place into the case, according �.7.

3.3.6M.-1hmaintenanceduringstorage

3.3.6.� The maintenance during storage M.-�h is carried out to ensure regular readiness of the sight before its preparation for use or till sequential maintenance.

M.-�h is conducted during short-term storage (after 6 months) by crew with the help of technical servicing specialists and during long-term storage (once in a year) by technical servicing specialists, using single and group STA kits.

For conducting the M.-�h, make the depreservation procedure according to 3.4.

The M.-�h consists of the works and tests prescribed for DM with the exception of secure mounting of the sight on grenade launcher and charging of accumulators.

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Restore the preservation.After M.-�h make a record in the logbook ASCHE3.8�2.075 FO.3.3.6.2 During the long-term storage the control-technical inspection (CTI)

is conducted periodically. The CTI is intended for checking of presence and inspection of technical state of the sight in package visually.

3.3.7M.-2hmaintenanceduringlong-termstorage

3.3.7.� The maintenance during long-term storage M.-2h is carried out to ensure regular readiness of the sight till sequential maintenance.

M.-2h is conducted one time in two years by storage facility staff with the help of technical servicing specialists, using single and group STA kits and equipment of storage facility staff.

For conducting the M.-2h, make the depreservation procedure according to 3.4.

The M.-2h consists of the works prescribed for M.-� with the exception of secure mounting of the sight on grenade launcher and charging of accumulators.

Restore the preservation.After M.-2h make a record in the logbook ASCHE3.8�2.075 FO.

3.4Preservation(depreservation,represervation)

3.4.� For preservation of the sight and single STA kit, it is necessary to perform the following:

– all external surfaces of the sight and units of the STA kit (except optics) have to be clean from dust, dirt, moisture and corrosion signs, degreased and dried up, the fingerprints and condensate on the surfaces of article are not allowed. In this case it is necessary to use gloves while working and the temperature of the article have to be equal to the indoors temperature, where preservation will be carried;

– clean external optical surfaces by flannel napkin from the STA kit, if necessary use solvent in accordance with method of 3.�.�;

– put light filter on objective lens of the sight;– discharge accumulators by current range of 0.�8 to �.8 A, when discharge

current is 0.9-�.8 A, the discharge end voltage should be not less than 0.8 V, if necessary replace accumulators to the new ones;

– put the sight and parts of the STA kit: power supply, charge unit, cable, YK-3�6 battery tester, spanner, eyeshade into the cases made of inhibited polyethylene film ZIRAST (green color), accumulators, R6 (AA) battery, service documentation – into the polyethylene cases (white) and solder them up hermetically;

– keep the sight and STA kit, preserved with the help of inhibited polyethylene film ZIRAST, indoors under conditions excluding moisture condensation (air temperature (25±�0) °C, relative humidity from 40 to 80%), not less than 24 hours;

23

– if there is no cases made of inhibited polyethylene film ZIRAST, it is allowed to put thin layer of lubricant GOI-54p to the not pained surfaces of the sight’s seat and spanner, and wrap them up by parchment imitation P45.

– wrap napkins separately with imitation parchment; – place packed sight, STA kit and service documentation into appropriate

nests of the case, according to the list of enclosure.– close all locks of the case and seal in accordance with �.6.3.3.4.2 The preservation of the sight and single STA kit in the manufacturing

packing ensures the safety of the articles without represevration during:– three years if it is stored under awnings (with temperature range of ±50 °C,

relative humidity up to �00%); – five years if it is stored in unheated deports (with temperature range of

±50 °C, relative humidity up to 98%); – ten years if it is stored in heated deports (with temperature range of

(25±�0) °C, relative humidity from 40 to 80%); 3.4.3 During storage period the represervation of the sight and single STA

kit should be conducted in times, indicated in 3.3, in frames of warranty period, making appropriaterecords in logbook.

To restore theshielding characteristics of packing, it is necessary to conduct timelyreplacementofthe case made of inhibited film ZIRAST, taking in account the period, indicated in 3.4.2, and the period of the working life of inhibited film ZIRAST that utilized again.

3.4.4 Depreservation of the sight and single STA kit is conducted to prepare the sight for use and to provide M.-�h and M.-2h.

For depreservation, it is necessaryto open the case, unseal packing cases, remove the sight and equipment from them, wipe theexternal surfaces of the optical details with napkin 5 (Figure A.�).

The cases should be packed back in a case to be used during sequential preservation withi theperiod of the working life of film ZIRAST.

If lubricant GOI-54p was used during the preservation, then to prepare the sight for use, remove it by rags.

After depreservation make a record in the logbook ASCHE3.8�2.075 FO.

4REPAIRINSERVICE

4.1Generalinstructions

4.�.� In case any failure is discovered during the sight operation, check the following:

– the light filter is attached;– the sight is turned on;– the mounting of the sight on a weapon;– external surfaces of objective lens and the eyepiece have no dust, dirt, oil,

hoar-frost and moisture;

24

– make sure the batteries have sufficient charge;– make sure the contacts of the power supply is clean.

4.2Trouble-shooting

4.2.� Probable results of faults and damages as well as instructions for trouble-shooting are listed in table 8.

Table 8

Description of faults and damages result, additional

indicationsProbable grounds

Directions for elimination of faults

and damages

Image intensifier screen is not illuminated

� The battery is discharged.2 Image intensifier is failed

� Replace the battery with operable one.2* Sent the sight to the repair shop

Scene image is poor and smeared

Formation of dew or dirtying on the external surfaces of the objective lens and the eyepiece

Wipe the outer optical surfaces of the objective lens and eyepiece with napkin 5 (Figure A.�)

Brightness of image rises to the maximum and then falls to the extremely low level; or the image has oscillating brightness that obstructs sight operation

Light overload Attach the light filter � (Figure A.3a) onto the objective lens body 2

Scene image is poor and smeared. There are flashes and blinks within the coverage of the sight

Formation of dew on the external surfaces of the objective lens, the eyepiece and photocathode of image intensifier

*Send the sight to the repair shop to dry and eliminate depressurising

There are dark spots in the sight’s field of view that obstructs sight operation

� Image intensifier is damaged by exposure to point-light sources.2 Flaking of the photocathode or of the screen of image intensifier

*Send the sight to repair shop

The aiming reticle does not shine when setting the switch �5 to the upper position

� The battery is discharged.2 Radiating device is failed

� Replace the battery.

2 *Send the Sight to repair shop

The recognition distance is lower than the parameters given in 3.3.5.3

The resolution of image intensifier worsened

Take the sight to the repair shop for more correct measuring of the recognition distance and possible replacement of IIT

Note– works marked by “*” are provided by repair shops in accordance with ASCHE3.8�2.075 II.

25

5STORAGE

5.� Storage only inspected, operable and clean sights, which passed preservation.

The sight is stored in the case together with single STA kit and service documentation.

5.2 The sight is stored in unheated deports and under awnings, the NLTs-0.9-� accumulators must be discharged.

5.3 Long-term sight storage period is �0.5 years.5.4 Storage period of the NLTs-0.9-� accumulators is 5 years.

6TRANSPORTATION

6.� The sight with single STA kit and service documentation can be transported only in the case by any kinds of transport at any distance.

The overall dimensions of case and the mass of sight in the stowed-transport position are indicated into �.2.�

6.2 Before transportation (shipment or carrying), ensure that the sight, the single STA kit and service documentation are safety fastened in a case. Case must be locked completely.

6.3 During transportation the case must be set cover upward. Do not throw or turn over the case with the sight.

7UTILIZATION

7.� In an effort to prevent the pollution of the environment, it is recommended to dispose of used batteries appropriately.

26

AppendixА(obligatory)

LISTOfILLUSTRATIONS

Figure À.� – Single STA kit

Figure À.2 – Case package chart

Figure À.3 – Night vision sight �PN��0

Figure À.4 – Aiming reticle and field of view of the sight

Figure À.5 – Landolt ring for estimation of illumination

Figure À.6 – Scheme of aligning target

Figure À.7 – Graph for estimation of illumination

27

� – power supply AL5.087.326; 2 – charge unit AL5.�2�.�6�;3 – cable AL6.644.493; 4 – eyeshade AL8.647.�36; 5 – napkin AL8.890.00�-0�; 6 – spanner ASCHE8.392.007;7 – R6(AA) battery; 8 – NLTs-0.9-� accumulator; 9 – YK-3�6 battery tester;

Figure À.� – SingleSTAkit

28

Figure À.2 – Casepackagechart

� – case; 2 – service documentation; 3 – sight �PN��0; 4 – NLTs-0.9-� accumulator; 5 – R6(AA) battery; 6 – eyeshade AL8.647.�36; 7 – YK-3�6 battery tester; 8 – carrying bag ASCH4.�65.035; 9 – napkin AL8.890.00�-0�;�0 – spanner ASCHE8.392.007; �� – power supply AL5.087.326; �2 – cable AL6.644.493; �3 - charge unit AL5.�2�.�6�

29

Figure À.3 – Nightvisionsight1PN110

� – light filter; 2 – objective lens; 3 – ring; 4 – body; 5 – index; 6 – scale; 7 – handwheel; 8 – collar; 9 – eyeshade; �0 – headrest; �� – screw; �2 – cap; �3 – cap; �4 – laed; �5 – switch; �6 – handwheel; �7 – mount; �8 – mount

а) general view of the sight

b) sight mounting on the weapon

� – cap; 2 – mount;3 – seat of grenade launcher;4 – latch; 5 – screw; 6 – handle

30

Figure À.4 – Aimingreticleandfieldofviewofthesight

3�

Figure À.5 – Landoltringforestimationofillumination

32

Figure À.6 – Schemeofaligningtarget

APG – aiming point of grenade launcher.APS – aiming point of the sight.

33

Figure À.7 – Graphforestimationofillumination

illumination, lx

Ran

ge,

m

34

Изделие �ПН��0. Руководство по эксплуатации на английском языке