Newcon Optik NVS 6 User's Manual
Contents
1. NVS 6 PILOT NIGHT VISION GOGGLES MAINTENANCE AND OPERATION MANUAL In USA 3310 Prospect Ave Cleveland OH 44115 In Canada 1183 Finch Ave W Suite 302 Toronto ON M3J 2G2 Canada Tel 416 663 6963 Fax 416 663 9065 Email RENCONSALES NEWCON OPTIK COM Ye ANONO NVS 6 MANUAL IMPORTANT INFORMATION Read prior to activation You have just purchased a complicated electronic device To operate it properly please read this manual carefully Here are some common precautions that must be noted NEVER disassemble the unit This device contains high voltage which may be hazardous to your health NEVER expose the opened objective lens of an active unit in daylight At daytime objective lens must be covered by caps There is a tiny hole in the cap to provide enough light for daytime testing It is allowed to turn on the unit at daytime but caps must cover the lenses NEVER aim active unit at intense light sources i e lights headlamp campfires the moon etc NEVER reverse the polarity of a battery ALWAYS remove batteries when not in use for a long period ALWAYS keep the objective lenses covered when not in use ALWAYS store in a warm dry place when not in use RECORD OF REVISIONS Pages 1 2 NVS 6 MANUAL RECORD OF REVISIONS Section ie Authorizing Transmittal letter No Sub Section Pea Reference No Signed Date Subject and date by Page 2 NVS 6 MANUAL LIST OF EFFECTIVE PAGE2. including rechargeable batteries into the inner pocket of the case Page 31 NVS 6 MANUAL 6 3 Arrangement of Night Vision Goggles on Helicopter Figs 6 4 thru 6 7 6 3 1 Remove the following components from the case Ref Fig 3 1 night vision goggles 1 batteries 6 2 pcs mount 7 counterweight 10 voltage converter 2 complete with LVC low voltage converter 10 Ref Fig 5 1 and cable 11 6 3 2 Secure LVC 19 Ref Fig 6 7 in the place allotted for it in the cockpit and connects it to the helicopter electrical system by making use of airborne power cable 21 engage receptacle 22 with LVC plug 23 6 3 3 Attach cable 20 with the aid of spring clamps 24 in the cockpit 6 3 4 Install mount 26 found in the single set of spare parts Ref Fig 6 6 Step 6 2 11 onto the front portion of the helmet 6 3 5 Install counterweight 9 Ref Fig 6 5 Step 6 2 12 onto the rear portion of the helmet 6 3 6 Insert batteries into the special recess on the night vision goggles Ref Step 6 2 5 of this Manual to ensure independent power supply of the goggles 6 3 7 Install the night vision goggles on the helmet with the helmet removed from the head in the stowed position Ref Fig 6 5 for this purpose join the fixing assembly of the night vision goggles to mount 26 of the helmet Ref Fig 6 6 Using extreme care insert the fixing assembly plate of the night vision goggles into the slots of gu
3. 1 5 3 1 Lenses 1 may be focused either relative to distant objects located in the space outside the cockpit or relative to the objects located close to the helicopter The focus is adjusted by rotating the lenses 5 3 2 The dioptric focusing of eyepieces 2 is carried out individually for each sight channel of the unit by rotating eyepieces with the aid of focusing rings 3 5 3 3 The independent power source IPS is arranged inside guide 4 which is closed with cap switch 5 5 3 4 The NVS 6 is installed onto the pilot s helmet by attachment of fixing assembly 6 of the unit to mount 7 which is then secured to helmet casing 8 The fixing assembly makes it possible to perform individual adjustment so as to provide the most comfortable position of the goggles mounted on the helmet relative to the pilot s eyes This feature enables the pilot to move the goggles away from the eyes tilt the optical axes of monocular pair and displace them upwards and downwards Page 8 NVS 6 MANUAL 7 18 20 1 Lens 11 Cable 2 Eyepiece 12 Cap 3 Ring 13 Dehydrator Cartridge 4 Guide 14 Sight Glass 5 Cap Switch 15 Cable 6 Fixing Assembly 16 Screw 7 Mount 17 Visor Guard 8 Casing 18 Slot 9 Counterweight 19 Cross Shaped Knob 10 LVC Low Voltage Converter 20 Screw NVS 6 Figure 5 1 Page 9 NVS 6 MANUAL For balancing out the overturning momentum produced by the unit in the operating position use is made of counterweigh
4. batteries batteries are discharged or unserviceable Probable cause Correction Remarks 1 Remove Can be rechargeable performed in batteries and then the field fit them in so that the positive lead marked with is directed inwards into guide 2 Ref Fig 5 2 1 Charge Can be rechargeable performed in batteries on the bat the field tery charging unit as instructed in the Manual furnished with The unit or replace failed rechargeable batteries or batteries with serviceable ones included in the single set of Page 40 NVS 6 MANUAL Trouble and symptoms Probable cause o 0 3 Presence of moisture inside the unit 5 Image intensifier tube for repair is out of order 4LVC or cable are out of order Can be performed in the field 1 Replace dehyd rator cartridge 13 Ref Fig 5 1 by first inspecting the color of silica gel indicator through sight glass 14 Replace the silica gel when its color is turned lilac or rosy To be performed at a repair shop or at Manu facturer s facilities 1 Forward the unit for repair To be performed at a repair shop or at Manu facturer s facilities 1 Forward the unit Page 41 NVS 6 MANUAL Trouble and Probable Remarks symptoms cause 2 Image of 1 Dirt on 1 Wipe clean Can be viewed objects is external external surfaces of performed in not sufficiently surfaces of lens 1 Ref Fig 5 1 the field s
5. be locked relative to the unit fixing assembly proceed as follows Move knob 2 Ref Fig 6 4 to the top position the hinged joint in this case will be fully released Pull out plate 3 which retains screw 4 in the locked position with your thumb and forefinger turn it to the next locking position in the clockwise direction and release the plate The plate shall be set to a new locking position Ref Step 6 2 2 This done lock the hinged joint linking the monocular pair to the unit fixing assembly again by applying an effort to knob 2 so as to bring it down as far as it will go If the monocular locking continues to fail carry out the above procedure one more time 6 2 4 Take power supply components two batteries of type size AA R6 1 5V or rechargeable batteries out of the case When using the rechargeable batteries first charge them in accordance with the Manual furnished with the battery charging unit 6 2 5 Insert two batteries into the recess of guide 8 with the positive contact directed inwards by first unscrewing and removing cap switch 5 and then screw it in fully in the clockwise direction 6 2 6 Release knob 2 and set the top portion of the fixing assembly perpendicular to the axes of monocular 28 and monocular 29 While holding the fixing assembly in one hand displace the monocular pair with the other hand forward and downward until they are butted up against the cruciform guides of
6. counterweight 9 and then fasten the strap using the sticking fastener 6 2 16 Secure the helmet complete with the goggles placed in the stowed position on the pilot s head 6 2 17 Transfer the goggles to the operating position Ref Step 6 2 2 of this Manual and turn them on Ref Step 6 2 7 of this Manual 6 2 18 Set RH side monocular 29 precisely opposite the right eye of the pilot To do so ease up knob 2 and displace the monocular pair of the night vision goggles in the cruciform guides of the fixing assembly upward or downward forward or backward Simultaneously turn them about the axis of knob 2 to find the optimum position at which the NVS 6 monocular pair is properly set away from the eyes and their optical axes have the required tilt By an optimum position of the monocular pair relative to the pilot s eyes is meant a position that provides adequate conditions for carrying out observation of the full field of view of the RH side monocular with the Page 29 NVS 6 MANUAL right eye as well as clear view of the surrounding space by shifting gaze downwards under the eyepieces of the night vision goggles Note If the RH side monocular of the night vision goggles fails to be set to the position at which the sighting line of the pilot s eye passes through its center the position of the RH side monocular shall be corrected by moving the night vision goggles upwards or downwards right or left relative to the hel
7. is adjustable This adjustment is performed after releasing the hinged joint by turning screw 19 about its axis To carry out the adjustment pull out plate 20 that retains the screw in position and turn it complete with the screw to the next fixed position In so doing remember that the knob retaining force becomes greater as the plate is turned clockwise and vice versa The night vision goggles can be promptly removed from the pilot s field of view and transferred to the stowed position To do so take hold of the monocular pair and while overcoming the force of retainer 21 move it fully upwards to the stowed position As the monocular pair is brought to a stop the retainer will operate to hold it up in the stowed position The electrical circuits in this case will become automatically de energized through activation of the microswitch 5 4 2 Voltage converter 2 is illustrated in Fig 3 1 The voltage converter is designed to supply power to the NVS 6 from the helicopter electrical system The voltage converter consists of two separate components low voltage converter LVC 10 and cable 11 as shown in Fig 5 1 The LVC is a stabilized DC power source used to convert the helicopter electrical power of 27V DC to 2 6V DC to power the unit Page 13 NVS 6 MANUAL The design of the LVC is illustrated in Fig 5 3 Structurally the LVC consists of casing 1 which accommodates voltage converter 2 attached to i
8. the fixing assembly Once completed tighten the knob to lock the monocular pair in the desired position WARNING NEGLECT OF THE REQUIREMENTS DESCRIBED IN THE ABOVE STEP MAY RESULT IN EYE INJURY DURING THE COMPLETION OF FURTHER PREPARATORY OPERATIONS Page 23 NVS 6 MANUAL 14 16 26 12 27 13 16 27 iS m gt S ZU Y x l Dt W ie p MN boxe OKO V RN u 28 8 7 Button 9 Counterweight Knob 10 Strap Plate 11 Cross head Knob Screw 12 Guide Cap switch 13 Retainer Cap 14 Cable Button 15 Visor Guard Guide 1 11 Screw Lever Connector Mount Screw LH Side Monocular RH Side Monocular Installation of Night Vision Goggles on Helmet in Operating Position Figure 6 4 Page 24 o o con NVS 6 MANUAL 2 12 13 16 14 Button 10 Strap 17 Ring Knob 12 Guide 18 Lever Plate 13 Retainer 25 Connector Screw 14 Cable 26 Mount Cap switch 16 Screw 27 Screw Counterweight Night Vision Goggles Installed on Helmet in Stowed Position Figure 6 5 Page 25 NVS 6 MANUAL 18 Lever 26 Mount 7 Button 12 Guide 1 Button 2 Knob 3 Plate 4 Screw 27 Screw 13 Retainer 16 Screw Installation of Night Vision Goggles on Helmet and Their Adjustment Relative to Pilot s Eyes Figure 6 6 Page 26 NVS 6 MANUAL 15 22 23 19 1 Button 19 LVC Low Voltage Converter 22 Receptacle 12 Guide 20 Cable 23 Plug 13 Retainer 21 LVC Power Cable Running from 24 Spring Clamp 14 Cable Heli
9. 49 APPENDIX A 222222 A A uM RM bata Mee 51 ABPPENDIXB i boe eene eR n ae 52 CONTENTS Pages 1 2 NVS 6 MANUAL 1 General 1 1 The NVS 6 helicopter night vision goggles have been designed for use by the helicopter crewmembers during execution of flights at night Note The helicopter cockpit should be tailored for the use of the night vision goggles Accounting for the spectral content of the light equipment radiation color of the cockpit interior surfaces and the like 1 2 The NVS 6 provides napping off the earth while piloting the helicopter at low altitudes at takeoff hovering and landing including landing on unprepared and non illuminated landing sites 1 3 When using the NVS 6 the pilot can take the readings of the instruments by looking at the instrument panel in the downward direction or sideways past the eyepieces 1 4 The NVS 6 operates within the ambient temperature range of minus 40 to 40 C 1 5 The power supply to the NVS 6 is powered by the helicopter electrical system of 27V via the voltage converter or from the independent power source IPS The IPS is built in to the goggles and consisting of two batteries of type size AA R6 1 5V or from rechargeable batteries of the same type Note The IPS independent power source is used when the aircraft electrical power is lost or the helicopter power supply has failed 1 6 The NVS 6 shall be used under the following conditions When the natural n
10. 5 2 The mount shown in Fig 5 4 is intended to secure the NVS 6 on the helmet of the pilot or a helmet of a similar type Page 14 1 Casing 2 Voltage Converter 3 Screw NVS 6 MANUAL 4 Cover 7 Connector Receptacle 5 Screw 8 Screw 6 Connector Plug 9 Gasket Low Voltage Converter Figure 5 3 Page 15 NVS 6 MANUAL 1 Screw 2 Screw 3 Screw 4 Guides 5 Spring 6 Carriage 7 Carriage 8 Screw 9 Screw Mount Figure 5 4 The mount is attached to the front portion of the helmet with the aid of three screws 1 2 3 The night vision goggles are secured to the mount by means of a night vision goggle plate which is passed into the slots of guides 4 of the mount The purpose of spring 5 is to reliably retain the NVS 6 on the mount Page 16 NVS 6 MANUAL Carriages 6 and 7 can be moved upwards downwards by rotating adjustment screw 8 as well as left right with the aid of screw 9 to adjust the position of the night vision goggles relative to the pilot s eyes The adjustment is performed with the use of the screwdriver part of the single set of spare parts 5 5 3 Casing 8 shown in Fig 3 1 is intended for replacing the helmet standard casing which makes it possible to fasten the night vision goggles Three holes provided at the casing center are used for installation of mount 7 as shown in Fig 5 1 After attaching the casing on the external surface of the helmet front port
11. MANUAL 4 SAFETY PRECAUTIONS 4 1 The NVS 6 is constructed so as to provide pilot s safety during operation 4 2 In case of emergency the helicopter crewmembers shall take off throw off the NVS 6 night vision goggles before evacuating the helicopter To ensure successful removal of the unit the crewmember using the NVS 6 in flight should be trained to quickly execute the night vision goggles In an emergency evacuation from the helicopter expedient removal is essential for his her safety 4 3 Care should be taken to protect the unit from direct exposure of its lenses to high level optical radiation CAUTION NEVER SWITCH ON THE UNIT DURING DAY LIGHT UNLESS PROTECTIVE CAPS ARE INSTALLED ON THE UNIT LENSES DO NOT KEEP THE UNIT IN THE BRIGHT LIGHT SOURCES FOR LONG PERIODS OF TIME Page 7 NVS 6 MANUAL 5 DESIGN OF UNIT AND ITS COMPONENTS 5 1 The NVS 6 is essentially a passive type optoelectronic night vision device whose principle of operation is based on the intensification of image brightness of objects being viewed with the aid of image intensifier tubes 5 2 The NVS 6 design employs a binocular pattern i e it consists of two identical optoelectronic channels of monocular type which afford stereoscopic vision to create comfortable conditions for napping off the earth thus enabling the pilot to evaluate the space depth and ensure higher night flight safety 5 3 The general view of the NVS 6 is illustrated in Fig 5
12. S Section Section Sub Section Page Date Sub Section Subject Subject Title Page Record of Revisions List of Effective Pages Table of Contents General Main Data Standard Set Operation Proce dure Operational Status Check Trouble Shooting Safety Precautions Design of Unit and Its Components 1 2 3 4 5 6 7 8 _ Rom a gt 0 Maintenance Practices Ox 8 X uw cxx o ON O9 0 Preparation for Storage and Operation Shipment NNN N gt O LIST OF EFFECTIVE PAGES Pages 1 2 NVS 6 MANUAL TABLE OF CONTENTS Page 1 Generali acento GC ee ee eee 1 2 Main Data s an RR ee ride edie testes 3 3 Standard Set eee RD DIRE era 5 2 Safety Precautions 5 1 afe te Pede e d Ee E Re trees ones 7 5 Design of Unit and Its Components 8 6 Preparation for Operation ssssesseeee mee 19 6 1 Preparation of Helmet for Mounting Night Vision Goggles 19 6 2 Individual Adjustment and Fitting sssssssssseeee 22 6 3 Arrangement of Night Vision Goggles on Helicopter 32 7 Operation Procedure nee eene hd ee eed ect ein 36 8 Operational Status Check uuurssseeersnnnnneennnnnennnnnnnnn nennen nennen nennen nn 38 9 Trouble Shodting 2 2 2 tere rettet Rs ae RR S Ean eed gail 40 10 Maintenance Practices ssssseeeeem eene 44 11 Storage and Shipment emm
13. a and 6 1 1 1 observing the mentioned order Page 19 aR WD Retainer Tail End Screw Bushing Recess NVS 6 MANUAL 6 Recess 17 Visor Guard 7 Washer 18 Slot 8 Casing 19 Cross shaped Knob 9 Clamp 20 Screw Replacement of Casing on Helmet Figure 6 1 Page 20 NVS 6 MANUAL 1 Retainer 2 Tail End 6 Recess 9 Clamp Assembly of Clamp with Retainer Figure 6 2 6 1 2 Installation of Counterweight 6 1 2 1 Take counterweight 10 Ref Fig 3 1 from the set of spare parts remove the backing of the sticking fastener meant for fastening to the helmet Figure 6 3 6 1 2 2 Bond the removed fastener to the rear potion of the helmet external surface so that the hole made at the center of the fastener coincides with screw head 1 Fig 6 3 the lower edge of the fastener therewith should join to the helmet rubber edging Before bonding with adhesive trace the outline of the fastener on the helmet and thoroughly remove the paint from the helmet within the outline Page 21 NVS 6 MANUAL 6 1 2 3 The adhesive recommended for usage is acrylate cyanide type LOCTITE 454 or the like providing an adequate bonding of fiberglass laminate with polyvinyl chloride the adhesive sets in 2 to 3 min and the unit may be used after a lapse of 24 h For the bonding procedure refer to the Instructions for Cement Usage 6 1 2 4 While bonding the fastener press its smooth side to the helmet surface evenly without a
14. bly by overcoming the retainer force that locks the goggles in the operating position 6 2 11 Remove mount 26 part of the single set of spare parts designed for attaching the night vision goggles from the outer pocket of the case and install it on the front portion of the helmet To do so insert three screws 27 into the threaded holes in the helmet casing and tighten them 6 2 12 Remove counterweight 9 Ref Fig 6 4 from the outer pocket of the case install it on the rear portion of the helmet and secure it by means of the sticking fastener Page 28 NVS 6 MANUAL 6 2 13 Carry out preparatory operations on the pilot s helmet in compliance with the Manual Loosen cross shaped knob 11 and use it to move visor guard 15 fully so that the visor guard is retracted under the casing These done fix the visor guard in this position by tightening the cross shaped knob 6 2 14 Install the night vision goggles which are currently placed in the stowed position onto the helmet with the helmet removed from the head by joining the fixing assembly of the night vision goggles to the helmet mount To do so insert the plate of the fixing assembly of the night vision goggles into the slots of guide 12 Ref Fig 6 4 of helmet mount 26 Exercise due care to avoid misalignment then turn the plate upwards until retainers 13 become latched 6 2 15 Attach cable 14 to the helmet by first passing it under unfastened strap 10 on
15. ced 5 5 7 For removing dust moisture and dirt from the external surfaces of the unit use is made of cloth 11 shown in Fig 3 1 5 5 8 The rechargeable batteries included in the single set of spare parts serve for replacement of failed or exhausted batteries of the independent power source The rechargeable batteries are charged by the use of a standard battery charging unit designed for charging the AA type rechargeable batteries in accordance with the Manual furnished with the charging unit 5 6 The packaging components of the NVS 6 include the case and the set of maintenance documents the Manual and the Log Book 5 6 1 The case shown in Fig 3 1 is used for storing and carrying the NVS 6 set The case is provided with side pockets which are fastened with a zipper One pocket holds the LVC low voltage converter and the cables and the other one is used for holding the mount counterweight and screwdriver The inner pocket is intended for accommodating the test pattern cloths spare dehydrator cartridge and batteries or rechargeable batteries The night vision goggles and its accessories are delivered sealed in a polyethylene film envelope which is packed in the case together with the casing and clamp The case is closed with a flap fastened with a zipper and a sticking fastener The case comes complete with a carrying strap Page 18 NVS 6 MANUAL 6 PREPARATION FOR OPERATION 6 1 Preparation of Helmet for Mounting Night Vis
16. copter Electrical System 25 Connector Connection of Night Vision Goggles to Helicopter Electrical System Via Voltage Converter Figure 6 7 6 2 7 Position the eyepieces of the goggles at eye level turn on the night vision goggles by turning cap 6 of cap switch 5 in the Page 27 NVS 6 MANUAL counterclockwise direction until it is retained in the ON position and check to see that the unit operates properly In so doing see to it that the image intensifier tube screens start glow steadily in amber green without flashes and twinkling in the monocular pair of the night vision goggles CAUTION TO SAFEGUARD THE UNIT AGAINST DAMAGE MAKE ABSOLUTELY SURE THAT THE SAFETY CAPS ARE FITTED ON THE LENSES WHEN THE NIGHT VISION GOGGLES ARE TURNED ON IN THE PRESENCE OF LIGHT 6 2 8 Depress button 7 and displace LH side monocular 28 with respect to the immobile RH side monocular along guide 8 to preliminarily select the optimum distance between the eye pupils in accordance with the interpupilary distance of the operator Release button 7 and the LH side monocular will be locked in the selected position 6 2 9 Turn cap 6 of cap switch 5 in the clockwise direction as far as it will go to de energize the night vision goggles 6 2 10 Take hold of the monocular pair with one hand and the fixing assembly with the other hand and transfer the night vision goggles to the stowed position as shown in Fig 6 5 i e fold up the fixing assem
17. harp the unit lens and eyepiece 2 eyepiece with cloth 11 Ref Fig 3 1 included in the single set of spare parts 2 Unit is out 1 Adjust properly Can be of focus sharpness of image _ performed in dioptric by rotating eyepiece the field setting of 2 Ref Fig 5 1 eyepieces has with the aid of not been adjustment ring 3 performed lenses have not been focused 2 Bring the image viewed in lenses 1 Ref Fig 5 1 into sharp focus as instructed in Step 7 4 3 Lens or 1 Forward To be eyepiece is af the unit for performed at a fected by phy repair repair shop or Page 42 NVS 6 MANUAL TIOUBIS Probable and Cause Remedy Remarks symptoms sical damage repair at Manu facturer s facilities 1 The 1 Forward the unit Tobe image for repair performed at a intensifier tube repair shop or is unser at Manu 3 One of the image intensifier tube screens is not illuminated Visible on the screen are black dots that tend to grow toa dimension of a segment viceable facturer s facilities 4 With the unit 1 Moisture 1 Replace Can be energized drops has got inside dehydrator cartridge performed in of moisture are the unit failure 13 Ref Fig 5 1 the field visible on optical of the eye by first inspecting surfaces in the piece sealing the color of silica gel field of vision of indicator through the eyepiece the sight glass 14 Replace silica gel Page 43 Trouble a
18. heir own idiosyncrasy which requires certain skills on the part of the pilot as the image of the terrain and objects visible through the night vision goggles is monochromic and not very soft 7 2 The night vision goggles enable the pilot not only to nap off the earth but also view the instrument panel by taking a look downwards or sideways past the eyepieces CAUTION WHEN THE NVS 6 IS USED AT NIGHT TIME THE SAFETY CAPS SHALL BE REMOVED FROM THE LENSES 7 3 For removing the safety caps press simultaneously on both retainers and while holding them depressed take the cap off of the lens mount Put the removed caps into the case pocket 7 4 After removing the safety caps focus the lenses of each monocular by rotating the lens about its optical axis so as to attain the sharp image of the viewed objects in the space outside the cockpit for convenience of rotation each lens is provided with knurling 7 5 In case that the airborne power supply is not available turn on the independent power source to feed power to the night vision goggles by turning cap 6 of cap switch 5 Ref Fig 6 4 7 6 If the night vision goggles become exposed to bright light turn your head to divert the lenses sideways so as to bring the image of bright light sources outside the field of view 7 7 n the event of fogging of the eyepieces of the night vision goggles low temperature pull the goggles out of the operating position and wipe dry the external su
19. ide 12 of helmet mount 26 avoiding misalignment and shift the plate upwards until retainers 13 become latched Prior to installation the night vision goggles shall be adjusted to fit the eyes of a pilot as instructed in Section 6 2 of this Manual Page 32 NVS 6 MANUAL 6 3 8 Fasten cable 14 on counterweight 9 using strap 10 Ref Fig 6 5 Step 6 2 15 6 3 9 With the goggles placed in the stowed position secure helmet soundly on the pilot s head 6 3 10 Connect cable 14 to cable 20 with the use of the connector 25 Ref Fig 6 7 6 3 11 Turn on the switch to apply the helicopter electrical power to the night vision goggles 6 3 12 Depress button 1 Ref Figs 6 4 6 5 and while holding the fixing assembly with one hand and taking hold of the monocular pair with the other hand transfer the goggles to the operating position so that the fixing assembly becomes straightened In doing so see to it that only slight effort is applied for ensuring proper locking latching of the monocular pair in the operating position Only an effort sufficient to cause operation of retainer 21 is necessary Ref Fig 5 2 The goggles will get energized This done the pilot shall see amber green illumination free from flashes and twinkling on the screens of both channels of the night vision goggles which is indicative of normal operation of the goggles powered from the helicopter electrical system Note When the nigh
20. ight illumination intensity is within 5 10 to 1 Ix and the meteorological visibility is 1 to 10 km At a flight altitude of 20 to 200 m At a flight speed of up to 120 km h Page 1 NVS 6 MANUAL 1 7 The trouble free operation of the NVS 6 within the assigned service life is ensured through its correct use careful handling and well timed maintenance 1 8 When operating the unit or placing it in storage keep it clean and avoid touching the external optical surfaces of the lenses and eyepieces with fingers Protect the unit against impact or dropping which may cause damage and defects to the unit and render it inoperable 1 9 Before using the NVS 6 carefully read this Manual 1 10 In the course of the service of the unit enter the information pertaining to its operational status maintenance storage and repair in the Log Book Page 2 NVS 6 MANUAL 2 MAIN DATA 2 1 Specifications of the NVS 6 are presented in Table 1 Table 1 tube as measured in the center of FOV minimum 5 Interpupilary distance range 52 to 72 7 mm 6 Lens focusing distance range 0 25 m to infinity 7 Power supply From helicopter DC electrical system via a 24 0 to 29 4 V voltage converter From two batteries of type size AA R6 1 5V 2 2 to 3 2 V or rechargeable batteries 8 Current consumed with the unit powered from 100 mA helicopter electrical system maximum 9 Power consumed with the unit powered from 3W helicopter elect
21. ion Goggles 6 1 1 Replacement of Visor Guard Mount Assembly 6 1 1 1 Remove the standard mount assembly of visor guard 17 Ref Fig 5 1 To do this remove four screws 16 attaching the casing to the helmet using the screwdriver found in the set of spare parts 6 1 1 2 To disconnect the visor guard from the standard casing a Remove screw 20 with the screwdriver by turning it clockwise b Remove cross shaped knob 19 by hand c Remove retainer 1 Ref Fig 6 1 together with the visor guard from the standard casing slot d Remove the visor guard from the retainer by first turning retainer tail end 2 along the visor guard slot 6 1 1 3 Take clamp 9 shown in Fig 3 1 from the set of spare parts 6 1 1 4 Remove screw 3 with the screwdriver as shown in Fig 6 2 and remove bushing 4 from the clamp hole 6 1 1 5 insert the visor guard into clamp slot 5 accurately without turning askew and applying much force and fasten it using a bushing and a screw 6 1 1 6 Take casing 8 out of the set of spare parts Connect the clamp together with the visor guard secured in it to the casing To do this insert retainer tail end 2 along recess 6 of the clamp left hand or right hand at the option of the pilot and turn it crosswise the recess as shown in Fig 6 2 6 1 1 7 Pass the retainer threaded portion through the respective left hand or right hand slot of casing 8 and proceed as in Steps 6 1 1 2 b 6 1 1 2
22. ion with four screws 16 it protects visor guard 17 against any possible damage Slots 18 are used as guides when lowering and lifting the visor guard They help to hold the visor guard in the required position with the use of retainer cross shaped knob 19 moving along the slot of the casing together with the visor guard While replacing the casing the retainer cross shaped knob can be installed for using by the right or left hand of the pilot 5 5 4 Clamp 9 shown in Fig 3 1 is meant for fastening the visor guard when replacing the standard casing for the casing found in the set of spare parts The clamp together with the visor guard fastened in it is attached to the casing with the help of the retainer shown in Fig 6 1 5 5 5 Counterweight 10 shown in Fig 3 1 is intended to compensate for the tilting momentum produced by the unit The counterweight is essentially an individual assembly consisting of a canvas cover with a weight contained therein As shown in Fig 5 1 counterweight 9 can be quickly installed on the rear portion of the helmet through the use of the sticking fastener The mass of the counterweight is 620 g The counter weight also has a strap with a sticking fastener used for securing night vision goggles power cable 15 Page 17 NVS 6 MANUAL 5 5 6 Screwdriver 4 shown in Fig 3 1 is meant for performing necessary readjustments of mount 7 and also used when the helmet standard casing is repla
23. m permitting emergency removal of the night vision goggles from the helmet To test depress levers 18 Ref Fig 6 4 of the fixing assembly with the thumb and forefinger and simultaneously pull the night vision goggles promptly downwards As the night vision goggles become released from the guide on the helmet keep on moving your hand to the left and right side to disengage the power cable from the helmet The night vision goggles shall easily separate from the mount of the helmet and remain in the pilot s hands Regardless of the position operating or stowed the night vision goggles will be easily removed WARNING THE NIGHT VISION GOGGLE REMOVAL TO BE PERFORMED IN THE EVENT OF AN EMERGECY ESCAPE FROM THE HELICOPTER MUST BE THOROUGHLY PRACTICED BY THE PILOT ON THE GROUND TO ENHANCE HIS SAFETY IF EMERGENCY ESCAPE FROM THE COCKPIT SHOULD BE NECESSARY 6 2 24 Transfer the night vision goggles to the stowed position as instructed in Step 6 2 10 of this Manual 6 2 25 Take out the used batteries from the night vision goggles 6 2 26 Take off the helmet and detach counterweight 9 6 2 27 Place the night vision goggles into the case and put the counterweight into the outer pocket 6 2 28 Discharge the rechargeable batteries if any and recharge them using a standard charging unit designed for charging the rechargeable batteries of type size AA 1 5 V in accordance with the Manual furnished with the unit 6 2 29 Place the batteries
24. met To do so the carriages of helmet mount 26 should be shifted by the adjustment of screws 16 utilizing the screwdriver provided Ref Fig 6 6 On completion of the corrective actions perform the operations described in this step once again 6 2 19 Carry out the operations prescribed by Step 6 2 8 of this Manual to finally adjust the interpupilary distance Make sure that the full field of view of the night vision goggles is provided for both eyes 6 2 20 Adjust the eyepieces to the appropriate dioptric sighting by turning rings 17 Ref Fig 6 5 of the eyepieces until a sharp structural image of the screens on the image intensifier tubes is attained 6 2 21 Evaluate the operational status of the night vision goggles by checking the image quality resolving power For this purpose take a test pattern from the single set of spare parts and arrange it at a distance of an outstretched hand away from the lenses 750 16 mm The settings of the night vision goggles are considered to be normal if the test pattern lines are clearly visible and the check text is readable Both monoculars should operate without flashes and twinkling CAUTION THE SERVICEABILITY CHECK OF THE NIGHT VISION GOGGLES SHALL BE ACCOMPLISHED IN THE PRESENCE OF LIGHT WITH THE LENSES COVERED BY THE SAFETY CAPS 6 2 22 De energize the night vision goggles Ref Step 6 2 9 of this Manual Page 30 NVS 6 MANUAL 6 2 23 Check the operation of the mechanis
25. nd symptoms 5 Night vision goggles are not properly secured on the mount of the helmet NVS 6 MANUAL Probable cause 1 Fixing assembly of the night visi on goggles is out of order when its color has changed to lilac or rosy 1 Forward the unit for repair Remarks To be performed at a repair shop or at Manu facturer s facilities Page 44 NVS 6 MANUAL 10 MAINTENANCE PRACTICES 10 1 The maintenance operations to be carried out on the NVS 6 constitute the essential part of the unit operation and their correct performance can significantly prolong the unit service life and keep it always ready for use 10 2 For maintaining the NVS 6 at constant readiness for service provision is made for the following line maintenance procedures preflight checks 1 Preliminary preparation 2 Preflight preparation 3 Preparation for the next flight 4 Post flight procedures 10 3 The maintenance operations and checks stipulated by the above maintenance practices are presented in Table 5 Line maintenance procedures preflight checks Subject of maintenance Prelimi Prepara Preflight and operations nary tion for preparat Pas next Table 5 1 Storage battery charging in accordance with the Manual furnished with the battery charging unit in using rechargeable batteries or replacement of batteries 2 Cleaning external surfaces of the lens and eyepiece in compliance with the procedu
26. nd their accessories for external condition Checking the unit set for completeness Testing the night vision goggles and their accessories for serviceability Checking the night vision goggles for image quality resolving power 3 Periodic inspection Checking screws for proper tightness and inadvertent loosening Adjustment of retainers force for locking in operating position if required Page 48 NVS 6 MANUAL 10 6 The inspection procedure shall be performed as specified in Table 3 10 7 The image quality shall be tested in compliance with Step 6 2 21 10 8 The screws shall be checked for proper tightness slipping and inadvertent loosening with the aid of the screwdriver included in the set of spare parts When carrying out this check make sure that the screws completely secure the joints between parts and assemblies Screw slippage and loosening are inadvisable 10 9 The adjustment of force of retainer 21 Ref Fig 5 2 shall be accomplished by turning the retainer attachment screw When the screw is turned the retaining force changes retainer spring pressing force Page 49 NVS 6 MANUAL 11 STORAGE AND SHIPMENT 11 1 The NVS 6 units should be stored in heated premises at a temperature of 5 to 40 C and a relative air humidity of not in excess of 80 11 2 Maintenance of the units while at store shall be performed as instructed in Section 10 of this Manual 11 3 Perform preserva
27. nts this product against defects in material and workmanship for one year from the date of the original date of consumer s purchase but no more than 18 months from the date of manufacturing Should your Newcon product prove defective during this period please bring the product securely packaged in its original container or an equivalent along with proof of the date of original purchase to your Newcon Dealer Newcon will replace or repair or at its option replace the product or part thereof which on inspection by Newcon is found to be defective in materials or workmanship What This Warranty Does Not Cover NEWCON is not responsible for warranty service should the product fail to be properly maintained or fail to function properly as a result of misuse abuse improper installation neglect damage caused by disasters such as fire flood lightning improper electrical current or service other than by a NEWCON Authorized Service Postage insurance or shipping costs incurred in presenting your NEWCON product for warranty service are your responsibility Please include a cheque or money order made out to NEWCON OPTIK for the amount of 15 00 to cover shipping and handling within Canada or the U S A Shipping to other destinations will be done at the customer s expense 8 Customer Support Should you experience any difficulties with your Newcon OPTIK product consult the enclosed manual If the problem remains unresolved contact our cust
28. omer support department at 416 663 6963 or Toll free at 1 877 398 6666 Our operating hours are 9am 5pm Monday Friday standard East time At no time should equipment be sent back to Newcon without following the instructions of our technical support department Newcon accepts no responsibility for unauthorized returns To locate the NEWCON Authorized Dealer call Tel 416 663 6963 Fax 416 663 9065 Email NEWCONSALES NEWCON OPTIK COM INTERNET http WWW NEWCON OPTIK COM The defective products should be shipped to In USA 3310 Prospect Ave Cleveland OH 44115 From other countries 1185 Finch Ave W Suite 302 Toronto ON M3J 262 Page 53 NVS 6 MANUAL Page 54
29. pe the glass with the cotton wool or Q tip several times without touching the eyepieces with hands Replace the cotton wool or Q tip with a dry one and perform circular strokes with the cotton wool moving it from the center to the edge to finish the cleaning It should be remembered that the unit should be de energized during the process of optical surfaces cleaning Perform cleaning of the monocular pair fixing assembly and unit accessories to remove dust dirt etc if any 10 4 In the course of service and storage of the NVS 6 it is necessary to ensure replacement of the independent power source 10 4 1 The rechargeable batteries shall be replaced on expiration of the guarantee period of their service life whereas the batteries shall be replaced as they are run down 10 5 The periodic maintenance checks scheduled maintenance procedures meant for maintaining the unit in the serviceable condition throughout the entire service life shall be conducted within the single time intervals as determined by the total flying time Ref Table 6 Note Information on the service time limits and man hours to per form the maintenance checks is presented in the helicopter Manual Page 47 NVS 6 MANUAL Table 6 Procedure Maintenance check intervals hours months and parameter under 100 check 6 ie 12 months 24 ee 1 Cleaning lens and eyepiece external surfaces 2 Inspection Inspecting the night vision goggles a
30. position 6 3 15 Turn off the switch used for supplying power from the helicopter electrical system to the night vision goggles 6 3 16 Disconnect cable 14 Ref Fig 6 7 from cable 20 by disengaging the connector 25 6 3 17 Take off the helmet complete with the night vision goggles installed and detach the counterweight from the helmet 6 3 18 Remove the night vision goggles from the helmet by pulling them down by hand having pressed levers 18 Ref Fig 6 4 to disengage the goggles fixing assembly plate from the guides of mount 26 of the helmet 6 3 19 Remove screws 27 and remove mount 26 from the helmet 6 3 20 Remove the used batteries from the night vision goggles Page 34 NVS 6 MANUAL 6 3 21 Disconnect power cable 21 Ref Fig 6 7 of the helicopter electrical system from the LVC low voltage converter and disengage cable receptacle 22 from plug 23 of the LVC 6 3 22 Remove the LVC complete with cable 20 6 3 23 Put the night vision goggles into the case Do not put the rechargeable batteries into the case 6 3 24 Discharge and recharge the rechargeable batteries in conformity with the Instructions presented in the Manual furnished with the standard battery charging unit 6 3 25 Pack the batteries and the rechargeable batteries after being charged into the case Page 35 NVS 6 MANUAL 7 OPERATION PROCEDURE 7 1 The conditions in which the night vision goggles are operated have t
31. pplying an excessive force Apply pressure to the fastener total area and use a screw clamp for locking the parts to be bonded Uniformly press the sticking fastener against the helmet until its strip is bonded to the helmet use should be made of the suitable device 6 2 Individual Adjustment and Fitting Figs 6 4 thru 6 6 CAUTION EACH PILOT SHOULD CARRY OUT INDIVIDUAL FITTING AND ADJUSTMENT OF THE NIGHT VISION GOGGLES Before starting the adjustment check to see that the lenses are closed with safety caps 6 2 1 Remove the night vision goggles from the case 6 2 2 Depress button 1 Ref Fig 6 4 and while holding the fixing assembly in one hand take monoculars 28 and 29 in the other hand transfer the goggles to the operating position so that the fixing assembly is straightened In doing so see that only a slight force is applied to securely lock latch the monocular pair in the operating position indicated by a click of retainer 21 Ref Fig 5 2 CAUTION IN THE EVENT OF FAILURE OF THE RETAINER TO LATCH THE MONOCULAR PAIR IN THE OPERATING POSITION THE NIGHT VISION GOGGLES WILL NOT BE ENERGIZED AND THE INDIVIDUAL ADJUSTMENT WILL NOT BE POSSIBLE 6 2 3 To ensure proper latching essential for retaining the monocular pair in the operating position check to see that the hinged joint linking the monocular pair to the unit fixing assembly is reliably locked Page 22 NVS 6 MANUAL Should the monocular pair fail to
32. re prescribed by this Manual NVS 6 MANUAL Table 5 cont d Line maintenance procedures preflight checks Subject of maintenance Prelimi Preflight Prepara and operations nary 9 tion for preparat pats next ion ix flight 3 Inspection Inspection of the night vision goggles and their accessories for external condition as instructed in Section 8 Checking the unit set for completeness Checking the night vision goggles and their accessories for external condition Testing the night vision goggles for serviceability Checking the night vision goggles for image quality 4 Preparation of the unit for use in compliance with Section 6 Individual adjustment and fitting of the unit Arrangement of the night vision goggles on the helicopter 5 Concluding operations on the unit as per Sections 6 7 Page 46 NVS 6 MANUAL 10 3 1 For cleaning the outer surfaces of the lenses and eyepieces wipe them with a clean cloth included in the single set of spare parts by first blowing off grains of sand and dust from the surfaces In case of severe contamination of the optical parts do their cleaning as follows Obtain a Q tip used for ears cleaning If not available wind a small amount of cotton wool around the end of a wooden stick after having sharpened the stick end Moisten the cotton wool or Q tip with alcohol or ether or their mixture and then shake the stick to remove excess of liquid Wi
33. rfaces of the eyepieces with a cloth included in the single set of spare parts 7 8 After long usage of the night vision goggles on the pilot s head more than 2 5 h the pilot may feel a light fatigue in the neck muscles Page 36 NVS 6 MANUAL 7 9 Upon completion of work with the night vision goggles and after the helicopter landing perform the operations prescribed by Steps 6 2 14 thru 6 2 25 If need be clean the night vision goggles and their accessories from dust dirt and traces of moisture with the cloth included in the single set of spare parts 7 10 The preparation of the night vision goggles for the next flight consists in replacement of the rechargeable batteries used in flight with newly charged ones and accomplishment of operations in accordance with Table 5 7 11 Prior to an emergency evacuation of the helicopter depress levers 18 Ref Fig 6 4 of the fixing assembly with the left right hand thumb and forefinger and promptly pull the night vision goggles down As the goggles become disengaged from the guide on the helmet keep on moving your hand to the left or right side until the power cable gets disconnected from the helmet The subsequent operations shall be carried out in compliance with the Helicopter Crew Instructions that specify the procedures for the night vision goggles usage during flights Page 37 NVS 6 MANUAL 8 OPERATIONAL STATUS CHECK 8 1 In the course of the NVS 6 service it is essen
34. rical system maximum 10 Continuous operation time of the unit powered 3h from the built in independent power source without changing the batteries within the entire operating temperature range minimum Page 3 NVS 6 MANUAL Table 1 cont d Specification Characteristic 11 Continuous operation time followed by an 3h interval of not less than 30 min minimum 12 Unit deployment time getting the unit ready 5 min for use maximum 13 Unit stowing time packing the unit in the 5 min case maximum 14 Mass maximum Night vision goggles without mount 0 59 kg Voltage converter with cable 0 3 kg 15 Night vision goggles overall dimensions 108x151 5x122 mm maximum Page 4 NVS 6 MANUAL 3 STANDARD SET 3 1 The standard set of the NVS 6 shall be consistent with Table 2 and Fig 3 1 Table 2 muss ewweswe 1 I proma fraen 1 Set of Spare Parts 279376 002 1 Optional Watchmaker s 1 Optional screwdriver MT 992 size 1 5 754421 001 Test pattern AA R6 1 5 V 304134 001 745159 003 745159 001 305259 001 741112 013 Optional 325371 009 Soft Padded Case 1 Optional Optional oO pu REESE Be Be r T UH RN Geet Ei es Rear ERDE Page 5 NVS 6 MANUAL 7 Mount 1 Night Vision Goggles 8 Casing 2 Voltage Converter 9 Clamp 3 Dehydrator Cartridge 10 Counterweight 4 Screwdriver 11 Cloth 5 Test Pattern 12 Case 6 Batteries NVS 6 Standard Set Figure 3 1 Page 6 NVS 6
35. s IPS the image intensifier tube screens shall illuminate and after dioptric adjustment of the eyepieces Ref Step 6 2 20 and focusing of the lenses Ref Step 7 4 nearby objects shall be clearly seen in the unit field of view 4 Quality of The check is The unit shall provide for image viewed by conducted by the pilot distinct identification of the unit in the course of test pattern lines in all four individual adjustment directions and easy reading of the night vision of the check text which is goggles Ref Step indicative of the fact that 6 2 21 the unit is ready for use 9 TROUBLE SHOOTING 9 1 Normal operation of the NVS 6 is substantiated by the following indications a Feasibility of observing the illumination of the screens without flashes and twinkling of each of the two image intensifier tubes through the eyepieces b Clear visibility of nearby objects and the test pattern lines in the course of preflight preparation 9 2 All these signs are indicative of the adequate operational status of the NVS 6 for ensuring its normal functioning 9 3 The list of the most frequent and probable troubles of the NVS 6 is given in Table 4 Page 39 Trouble and symptoms 1 NVS 6 failure to operate image intensifier tube screens are not illuminated Trouble and symptoms NVS 6 MANUAL Table 4 Probable cause 1 Polarity of connected rechargeable batteries is not observed 2 Rechargeable
36. s rose pale or off white The external condition of the silica gel is monitored through sight glass 14 5 4 The NVS 6 standard set comprises the night vision goggles the voltage converter and the single set of spare parts Optional Page 10 NVS 6 MANUAL f fu AS mm i N Zu OZ N _ 5 Li ipte ee 1 Guide 9 Screw 16 Cable 2 Guide 10 Button 17 Lever 3 RH Side Monocular 11 Batteries 18 Knob 4 LH Side Monocular 12 Cap switch 19 Screw 5 Lens 13 Fixing Assembly 20 Plate 6 Eyepiece 14 Retainer 21 Retainer 7 mage Intensifier Tube 15 Button 22 Retainer 8 Barrel Night Vision Goggles Figure 5 2 Page 11 NVS 6 MANUAL Physically the night vision goggles are made in the form of two identical electro optical channels monocular 3 and monocular 4 which are mechanically linked with each other with the aid of guide 1 and guide 2 Each of the monocular pair incorporates lens 5 eyepiece 6 image intensifier tube 7 and barrel 8 RH side monocular 3 that allows the pilot to carry out observation with the right eye is rigidly fastened to guide 2 while LH side monocular 4 that permits observation with the left eye is of a movable design and may be displaced to adjust the eyepieces of the night vision goggles to suit the pilot s eyes To adjust the night vision goggles interpupilary distance depress button 10 and displace monocular 4 along guide 2
37. t 9 secured on the rear portion of the helmet The helmet should be tailored for employment of the night vision goggles For this purpose the standard casing should be replaced and the strip of the sticking fastener should be bonded to the helmet rear surface for attachment of the counterweight the necessary appliances are included in the set of spare parts Note other helmets may require different mounting mechanisms 5 3 5 Caps 12 are intended to safeguard the image intensifier tubes against exposure to light and protect the optical components of the lenses from mechanical damage The caps are provided with holes for checking the night vision goggles for serviceability at an illumination intensity of more than 1 Ix in conditions of day light and dusk as well as with retainers two spring loaded projections located on the cap sides used for reliable locking of the cap in the mount of lens 1 Small projections in the sides of the cap are provided with holes for joining the caps in pairs by means of a fishing line This will minimize their inadvertent loss in service 5 3 6 The moisture resistance of the unit is ensured with the use of annular rubber seals and dehydrator cartridges 13 These are intended to absorb moisture in case it gets into the interior space of the monocular pair The dehydrator cartridge is filled with silica gel that is bluish in color when it is not saturated As the silica gel gets saturated it turn
38. t by means of screws 3 Cover 4 is fastened to the casing with screws 5 Connector plug 6 serves to connect the LVC to the helicopter electrical system of 27 V with the aid of the cable arranged on board the aircraft Connector receptacle 7 is intended to connect cable 11 shown in Fig 5 1 to the LVC Connector plug 6 and connector receptacle 7 are secured to the casing by means of screws 8 as shown in Fig 5 3 Gaskets 9 installed between the casing the connector plug and the receptacle serve to protect the LVC interior against direct entry of moisture whereas LVC cover 4 is filled with sealing compound for the same purpose Cable 11 attached to the voltage converter is connected to cable 15 to make an electric power supply circuit of the night vision goggles as shown in Fig 5 1 The use of cables with quick disconnect connectors makes it possible to promptly remove the night vision goggles from the helmet in case of emergency 5 5 Apart from spare dehydrator cartridge the single set of spare parts includes the following test pattern mount casing clamp counterweight screwdriver cloth spare batteries or rechargeable batteries Spare parts availability is optional to be specified in each individual supply contract 5 5 1 Test pattern 5 shown in Fig 3 1 is designed for checking the quality of the image of the NVS 6 resolving power The check procedure is presented in 6 2 21 of this Manual 5
39. t vision goggles are powered from the helicopter electrical system they are energized and de energized automatically in response to their transfer from the stowed to the operating position and vice versa irrespective of the position of cap 6 Ref Fig 6 4 of cap switch 5 CAUTION 1 WHEN THE NIGHT VISION GOGGLES ARE SWITCHED ON IN THE PRESENCE OF LIGHT OR WITH THE WHITE FLOOD LIGHT TURNED ON MAKE ABSOLUTELY SURE THAT THE SAFETY CAPS ARE FITTED ON THE LENSES TO PREVENT DAMAGE OF THE UNIT Page 33 NVS 6 MANUAL 2 IF THE POWER SUPPLY OF THE GOGGLES FROM THE HELICOPTER ELECTRICAL SYSTEM IS NOT AVAILABLE THEIR OPERATION MAY BE PROVIDED FROM THE INDEPENDENT BUILT IN POWER SOURCE TWO BATTERIES AA R6 1 5 V OR RECHARGEABLE BATTERIES OF A SIMILAR TYPE 6 3 13 If the alignment of the monoculars of the night vision goggles with respect to the eyes of the pilot is not accurate enough and the monocular pair is not adjusted to suit individual features of his eyesight perform the adjustment operations as prescribed by Steps 6 2 19 6 2 20 of this Manual Now the goggles are ready for work Upon completion of work with the goggles carry out the following operations 6 3 14 Take hold of the monocular pair with one hand and the fixing assembly with the other hand and transfer the night vision goggles to the stowed position i e fold up the fixing assembly by overcoming the force of the retainer which locks the goggles in the operating
40. tial to continually carry out its inspection The inspection shall be accomplished during all kinds of maintenance checks with the aim of determining the unit operational status and detecting in due time its defects and their correction The operational status of the unit is exemplified by its serviceability completeness of its standard set and readiness for use 8 2 The list of the basic checks of the NVS 6 and its accessories for operational status inspection procedures is presented in Table 3 Table 3 Inspection method Technical requirements 1 Unit standard Check the standard The unit standard set set inspection for delivery set against shall comply with the full complement the list of the unit com standard delivery set ponents in the Log specified in the NVS 6 Log Book Book 2 External Inspect the unit for The external surfaces of inspection of external condition vi the unit and its accessories the unit and its sually shall not be affected by accessories cracks dents traces of cor rosion and other defects The lenses and eyepieces shall be free from cracks spots of grease and dirt 3 Serviceability The procedure for With the unit energized test of the unit and serviceability test is either from the helicopter its accessories described in Section 6 electrical system via the of this Manual voltage converter or from Table 3 cont d Page 38 NVS 6 MANUAL Inspection method Technical requirement
41. tion of the unit before placing it for prolonged storage The preservation is done by the use of lamination method the units are sealed in a polyethylene bags On the expiry of three years since preservation the unit shall be subject to repeated preservation 11 4 The NVS 6 can be shipped by any type of transport and over varied distances provided proper packaging is in place During transportation the package that contains the case with the unit shall be securely protected against shocks and dropping The case shall be placed in the package with the top cover directed upwards and carefully fastened CAUTION AVOID DROPPING THE PACKAGE WITH THE UNIT DURING LOADING AND UNLOADING OPERATIONS Page 50 NVS 6 MANUAL APPENDIX A List of Illustrations reference NVS 6 Standard Set NVS 6 Night Vision Goggles Low Voltage Converter Mount Replacement of Casing on Helmet Assembly of Clamp with Retainer Installation of Night Vision Goggles on Helmet in Operating Position Night Vision Goggles Installed on Helmet in Stowed Position Installation of Night Vision Goggles on Helmet and Their Adjustment Relative to Pilot s Eyes Connection of Night Vision Goggles to Helicopter Electrical System Via Voltage Converter Page 51 APPENDIX B List of Abbreviations reference FOV Field of view IPS Independent power source LVC Low voltage converter Page 52 NVS 6 MANUAL WARRANTY NEWCON OPTIK warra
42. to set it to the desired position These done release the button to fix monocular 4 in the selected position Batteries 11 are installed inside guide 2 and closed with cap switch 12 The night vision goggles are attached to the helmet with the aid of the guides of fixing assembly 13 and those of the helmet mount The fixing assembly is retained in the fixed position in the helmet mount by means of retainer 14 The transfer of the night vision goggles from the stowed position to the operating one in which they are fitted on the helmet is accomplished by depressing button 15 with the left hand and lowering the goggles until they are retained in the locked position The fixing assembly is provided with a connector for connecting the mating connector plug of cable 16 intended to feed power to the night vision goggles via the voltage converter Upon termination of use the night vision goggles are easily removed complete with cable 16 from the mount of the helmet by pressing down lever 17 Page 12 NVS 6 MANUAL Knob 18 provides a means of individual adjustment of the monocular position eye relief tilt of the monocular pair optical axes and displacement of the monocular pair in the upward and downward directions The monocular pair is locked in the selected position by moving the knob down as far as it will go This securely locks the monocular pair in this position The force applied for tightening the knob
Download Pdf Manuals
Related Search