Armasight NSGN150001F6DA1 N-15 FLAG Night Vision Goggles - Manual (Page 5)

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4. PREVENTIVE MAINTENANCE AND TROUBLESHOOTING 24
4.1 Preventive Maintenance Checks and Services 24
4.1.1 Preventive Maintenance Checks and Services (PMCS) 24
4.2 Troubleshooting 26
4.2.1 Operator Troubleshooting 26
4.3 Identification of Operational Defects 26
4.3.1 Operational Defects 26
4.3.2 Cosmetic Blemishes 27
4.4 Maintenance 29
4.4.1 General 29
4.4.2 Cleaning Procedures 29
4.4.3 Battery Removal and Replacement 29
4.4.4 Goggle Kit Maintenance 29
4.5 Service/Packing and Unpacking 31
4.5.1 Return Instructions 31
APPENDIX 32
A. N-15 List of Spare Parts 32
B. Intensifier Tube Replacement Manual 33
C. Product Warranty Registration Card 35
LIST OF FIGURES
FIGURE TITLE PAGE
2-1 N-15 Night Vision Goggles 11
2-2 N-15 Standard Components 13
3-1 Battery Installation 16
3-2 Mounting the N-15 to a Goggle Kit 17
3-3 Mounting the N-15 to a Helmet 18
3-4 Mounting the N-15 to a US Mil Helmet/Headgear Assembly 18
3-5 Mounting an IR Illuminator to the N-15 19
3-5 Camera Adapter 19
3-6 Mounting 3X Afocal Lenses to the N-15 20
3-7 N-15 Controls 20
3-9 IR Illuminator Operations 22
4-1 Shading 27
4-2 Edge Glow 27
4-3 Emission Points and Bright Spots 28
4-4 Fixed-Pattern Noise 28
4-5 Chicken Wire 28
4-6 Browpad Replacement 30
4-7 Chin Strap Reinstallation 30
4-8 Chin Cup Replacement 30
A-1 N-15 Spare Parts 32
B-1 Intensifier Tube Replacement 35