CONTINUATION OF TRANSLATION
Page 7
With the assembly and disassembly of the rifle....do not use excessive force or blows. Parts should be placed next to each other in order they were removed making sure they are not mixed with parts from another rifle.
Optics lenses are not to be touched with fingers
When assembling, once again, make note of serial numbers so as to avoid interchanging parts with another rifle.
6. Sniper rifle, once verified empty is disassembled in the following order.
Removal of optical sight: Unscrew the nuts (serrated screws) until the optic mount is loose (pic3) and can be pulled rearward from its receiver base. The optic is placed in its case.
Bolt removal: Is accomplished by cocking the rifle and placing the safety latch in the vertical position and pulling the bolt back while the latch with your left palm.
Page 9, 10 and 11 deal with disassembly of the bolt and magazine and i'm pretty sure you dont need a Serbian translation of it. I'd also like to point out theres pages missing from the book.
PAGE 12
The sniper rifle is equipped with two types of sights - optical and mechanical (open) sights. Some sniper rifles were supplied with a so-called night sights (passive sight instrument)
17. Optical sights are the primary sights on the sniper rifle. Apart from aiming, the optical sights are used for observation and distance measurement.
Sniper rifle M69 uses the optical sight designation ON-2 M69. Its comprised of a base and optical tube.
Mechanical part of the sights ON2 (pic 18) has: body, mechanism for moving the crosshair height, mechanism for moving the crosshair direction, rubber eye piece and base.
Pic 18
Optical part of the sight ON-2 consists of: Lens, cross hair, turrets and eyepiece.
Turret Mechanism (pic 20) is used to take measurements and side adjustment.
PAGE 14
Lens give a reduced and flipped picture of the target. (this next part i dont understand) The sight picture is obtained in a _____ plain and the cross hair is found here too.
Cross hair (pic 22) is used to aim. It has the shape of a cross whose 3 arms (bottom and two horizontal sides) are marked with a thicker line, which allows for aiming in low light conditions. This distance between the center of cross hair and start of thicker portion is of primary importance.
Pic 22
Horizontal lines allow for holding the rifle in a vertical plane (helps the shooter while aiming to remove any eventual cant of the rifle)
In the upper portion of the cross hair there are numbers used to measure distance.
NOTE: If you wanted to know more about the sight the next page was crucial, Page 29 (book page) is just the beginning of scope sight description. If you could find page 30 that would really help decipher how to use the sights for distance measuring.
PAGE 15
Possible stoppages, causes of stoppages and how to fix them
1. Round enters the chamber stiffly and you have to use force to close the bolt - Bent round, round is squished or the chamber is dirty - round is removed, if the round remains in the chamber upon opening the bolt, you use the rod to eject it, then use a rag wrapped around the rod to clean and lube the chamber.
2 The entire bolt body, upon trying to close the round in the chamber does not pick a round up - Weak or broken lifter(mag spring) - Rifle is sent to repair shop.
3 Hang fire, upon firing the firing pin does not fire - Broken primer, firing pin does not protrude enough from bolt body, firing pin is broken or its tip is worn down, weakened, bent or broken firing pin spring, congealed grease or dirt inside the body of the bolt. - Rifle is reloaded and firing continues; upon frequent stoppage, the bolt is removed and firing pin is inspected. Because of dirt or congealed grease, the bolt is disassembled, cleaned and lubed. If the firing pin or firing pin spring are inoperative, rifle is sent to the work shop.
PAGE 16
4. Upon opening of the bolt, the extractor doesnt pull out the spent case from chamber - Broken extractor (damaged claw) or underneath the extractor is packed dirt (powder residue), congealed grease, brass pieces and similar - Bolt is removed and extractor inspected, if the extractor is fine, attempt with stronger cycling of the bolt to extract the spent case, clean and lube the chamber; if the extractor is broken or a piece of the spent case is stuck in the chamber, the rifle is sent to the workshop.
5. Upon opening of the bolt, front part of the bolt isnt ejecting the spent shell or the round - Internal side of a two sided spring is weak or broken - manually remove the spent shell
NOTE: We once again jump a bunch of pages
PAGE 17
66. After every adjustment of the turret position, its important to re shoot. The rectification of the optical sight is considered compete when all four hits are landed in a circle with diameter of 8 cm, and whose group center is 3cm or less from the aim point.
67. Sniper rifle M69 is to be tested again for accuracy upon either handing it to another sniper or after shooting 500 rounds
Ballistic and construction specifications for sniper rifle caliber 7,9mm M69
Starting bullet speed (muzzle velocity) - 735m/sec
Acceptable accuracy upon firing at a chest size target (50cm) - 400m
Maximum range - 5000m
Battle speed of firing - 5 rounds a minute (which contradicts earlier expectation of 8 rounds a minute)
Length of Rifle - 110.5cm
Length of barrel - 60cm
Number of barrel grooves - 4
Twist of barrel grooves - from left to right
Lenght of ammunition - 80.8mm
Optical zoom - 4x
Optical Sight radius - 0-90
Width of objective lens - 24mm
Width of exit pupil - 6mm
Eye relief - 77mm
Optical sight range - up to 1000m
See if you can get the rest of the pages. There's some really important info missing on the ON-2 sights that would be really handy if someone has one.