In detail: do-it-yourself leapers optical sight repair from a real master for the site my.housecope.com.
All-Russian Society of Pneumatic Weapons Lovers
1. Remove the front part of the lens (Fig. 1, pos. 1,2,3,4). To do this, take a small chisel, you can use a flat screwdriver and knock out the lens tube fastening ring (pos. 3, Fig. 1) in the direction from the lens towards the eyepiece.
Next, we unscrew the transverse screw that fixes the tube with the objective lens (pos. 2, fig. 1). Place of attachment (pos. 2, fig. 3). After that, unscrew the lens ring (pos1, fig3). We take out and put aside the spare parts (pos1,2,3,4, fig1). The lens is unrolled!
7. Unscrew the ring with the lens (pos. 1, fig. 2), pull out the pressure washer (pos. 2, fig. 2), unscrew the screws (pos. 4 and 5, fig. 2). After that, we remove the pipe (pos. 3, Fig. 2) and pull out the cylinders with variable magnification lenses (pos. 1 and 2, Fig. 5). Remember their position, as well as the position of the lenses inside! Do not confuse places, then you will not have problems during assembly! In my case, the lenses in both cylinders spun.
This completes the disassembly. Now, in order for the sight to work for a long time and properly, you need to tightly fix all the lenses available in the sight (6 pieces), eliminating their unwinding during powerful recoil. The forums wrote that for this most people use a blue threadlocker. I did not find a fixative, so I decided to use epoxy glue, which I do not regret! In Fig. 6 offal of the first cylinder. The retaining ring (pos.4, fig.6) had sharp burrs, it was cleaned with a zero. Be sure to check the contact points of the retaining rings with the lenses. They must be smooth, without sharp protrusions, otherwise, during subsequent operation, you risk chipping the lenses. There are many photos of shattered optics on the Internet for clarity.
Video (click to play).
8. The clamping spring seemed to me somehow soft, so for complete certainty, I decided to “freeze” the sight (Fig. 9). Did so. At an angle of 45 deg. I drilled a through hole with a drill for 3. Then I cut the thread with a sword for 4. Now you can screw in the screw by 4, which will compress the internal pressure spring. I highly recommend to everyone! Further operation showed that after zeroing and tightening the screw, the STP does not go anywhere! Even after I removed the sight from the crown, then put it back in place, the STP has not changed!
Day - two should be allowed to dry the glue. While the glue dries, carefully examine the ring with an aiming mark (pos. 7, fig. 2). After a hard soak in acetone, the aiming mark almost peeled off the ring. Sealed with epoxy. BUT! The cross must be very precisely in the center of the ring (in fact, in the center of the optical axis)! Otherwise, when changing the multiplicity, the STP will change. I glued and aligned the cross by eye, when I change the multiplicity from 3 to 9, the STP takes 2 hours, by 1.5 cm by 30m.
After drying, it remains to grease the thread on the ring with the aiming mark with glue and screw it to the inner tube (Fig. . Do not forget to set the cross in accordance with the correction drums! We assemble the lens, lubricating it where necessary with the above lubricant. Put the illumination drum in place. It turned out that the freeze screw does not interfere with the rotation of the drum at all, so the illumination could also be restored. The sight is ready! When mounted on a high bracket, The screw doesn't interfere at all.
We shoot, we adjust the drums of amendments. To date, the shooting has amounted to about 500 bullets. The scope is just great! Nothing floats and crawls, it works like a watch! Here are a couple of photos from shooting in the country. Distance 25m, bullets Gamo Match and JSB Exact. For a beginner shooter, I think not bad. The repair was successful!
It is best to entrust the repair of an optical sight to a specialist, but if there is none nearby, we take matters into our own hands. This article will in general terms help you understand the design of optical sights, learn how to disassemble them and carry out simple repairs. Stock up on patience and care - we are immersed in the precise world of optics.
Optical sight device
Before climbing into the inside of an optical sight, let's understand its technical device. The sight consists of the following components:
Before disassembling the scope, make sure you have the necessary tools and "accessories". You will need:
repair kit (a set of flat screwdrivers);
inexpensive transparent sealant (solvent-free);
cotton swabs;
a clean cotton rag;
jars (for storing small bolts);
flashlight.
As an example, consider the disassembly of the VOMZ-P model. You will come across the following configuration:
lens;
eyepiece;
lever;
screw;
lid;
net;
angular scale of lateral corrections;
lens turning system;
adjusting ring;
aiming angle scale.
First you have to unscrew the lenses (rear / front). The adjusting drums are screwed in until they stop (clockwise), then unscrewed together with pressure washers. Then, in turn, the pressure and locking bolts are unscrewed. Unscrew half of the pipe. The cassette containing the adjustment lens is gently squeezed out.
The lens-turning system is localized in the remaining pipe segment. If desired, it is easy to unscrew it - the system is locked with one microbolt.
The structure is assembled in the reverse order. Pay attention to the smearing of the lenses - they should not be touched with your fingers. The lenses are wiped with one-way movements (zero pressure).
The time has come to study the mounting of the base units of the optical sight. Please note that this is a fragile device, so you need to disassemble it with extreme caution. He starts to act up after about one and a half thousand shots. To prevent future problems, tighten the mounting screws, follow the horizontal guidance.
This video explains how an optical sight works and how to repair it (Leapers 3-9x40 model):
Lenses for hunting weapons are characterized by a large diameter, designed for shooting at short distances (150-200 meters). Hunting optics have many rubbing surfaces that wear out over time. There are backlashes, mechanical displacements and optical parallaxes.
The scheme of the lenses of the optical sight
Lenses are attached with sealant. Having disassembled the sight according to our instructions, you reach the ring nut holding the crosspiece. Next, the procedure is as follows:
extrusion of the cassette (do not lose the clamping spring);
unscrewing the front nut, lens and guide screws (2 pcs.);
removing the adjustment lenses from the inner cylinder (this must be done carefully, without giving the cylinder a vertical position);
remembering the location of the lenses;
repair.
If the trimming lens (more often the front one) has a lock ring untwisted, the threads will have to be lubricated with sealant. After waiting for drying, assemble the entire structure in reverse order.
In the course of repair actions, you will inevitably come across a clamping spring, which you need not only to save, but also to make sure of its functionality.
Loosened screws and nuts (if they do not tighten well) should be put on a sealant. Now the repaired structure, together with the spring, must be pushed back into the pipe - this is a rather time-consuming process. One end of the spring should end in teeth, the other should be completely smooth.
If necessary (the presence of notches), the second end of the spring must be sanded. The spring is installed in the central part of the sight - between the holes intended for the adjustment drums. The tube is pushed onto the cassette with the assembled lenses, while the spring must be held through the holes.
Far from all parts and assemblies of an optical sight need lubrication. And more precisely, only rings need this. Lubrication of the lens surface is highly undesirable. For the lubrication procedure, you will need:
alignment control rods;
abrasive lapping paste;
tools (torque screwdrivers, wrenches and levels);
threaded fastener.
Aluminum, steel and titanium rings are used to mount the sight. After lubricating them, install the sight so that the nuts are on the other side of the receiver port and the bolt handle.
The video shows how to properly clean an optical sight:
