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You will need

• - Phillips screwdriver
• - several sheets of blank paper
• - storage tanks for cogs
• - devices for wiping lenses
• - Rubber dust blower for blowing dust
• - the lens itself

Instructions

1

Well inspect the lens being dismantled. Let's say you decided to disassemble Nikkor 18-55. All manipulations should be made over white paper, laid on a flat surface, in order to avoid the loss of small parts and details. On the perimeter of the mounting of the bayonet you will see three black cogs, carefully unscrew them. Turn the lens sideways, contacts to yourself, unscrew the two screws securing the contact plate. Even before disassembling, you'll notice that the cogs are different from each other, so they better fold in different capacities and mark which cogs from where they were unscrewed. Remove the upper plastic ring, which is adjacent to the plate with the contacts.

2

The next step, unscrew the three little black onesbolt, located on the same annular surface, to which the contact plate was fixed. Remove the ring with diaphragm control plate. With very careful movements, unscrew the contact from the removed ring. Next, you can see 4 white bolts, on which the guides are mounted inside your lens. Unscrew them. Pull out the guides and with effort, pull the inside of the lens out of the case. Now you can proceed with that, for the purpose of which you have dismantled the lens itself. For example, cleaning the lens from dust.

3

Assemble the lens in the reverse orderanalysis. When inserting the inner part of the lens back, note that you can insert it in one single way, so that the ledge on it accurately enters the groove specially designed for this. Return the guides to the place, screw them. Gently attach the contact to the old place. Replace all the removed rings, slightly pull the diaphragm rod to make sure everything is in place. Screw all the cogs into their original places. If you perform all the actions with utmost care and accuracy, then nothing terrible with your lens should not occur. But remember, the responsibility for all your actions are borne by you and only by you, so before you start disassembling carefully weigh the need for this action.

You will need

• Phoenix screwdriver of size PH.0, flat screwdriver, special tool for parsing housings, similar to that used when parsing the Nokia SRT-6.

Instructions

1

We remove the back cover of the phone, take out a battery, a sim card and a flash drive. Carefully unscrew the screws.

2

Use a screwdriver to squeeze out the keyboard neatly. We remove the plastic plugs.

3

Slightly extend the front of the body,we unscrew the rest of the screws under it. Then remove the front part, using a special tool. It is inserted into the gap between the upper and the rear parts of the case, gently conduct them around the perimeter of the case. Thus, we disconnect the latches, due to which the two elements cohere.

4

We offer a screwdriver connector, and a special tool - a matrix. We remove these elements.

You will need

• Screwdriver, plastic card or flat blade screwdriver.

Instructions

1

We remove the back cover from the phone, take out the battery, the memory card and the SIM card in turn. We unscrew six screws, which become visible on the surface under the cover of the case.

2

Using a credit card or a flat screwdriver, expand the gap formed between the front and back of the case. Carefully remove the back cover.

3

We unscrew the screws fixing the antenna. Disconnect alternately the plug-in connector, the volume button, the speaker unit, the keyboard. We remove the screen and trains. Unhitch the board.

Instructions

1

Begin setting up the binoculars with the adjustment of its interpupillary distance, for this look in binoculars to the remote object and try to move and move the binoculars until you see a clear image, you should see a full circle.

2

The sight of your eyes may vary slightly, so binoculars needs dioptric adjustment and focus. On the right eyepiece there is usually a diopter adjustment ring to eliminate image differences, and do not tune the left eyepiece - it is stationary.

3

Looking at a remote object in binoculars, close the right eye and turn the headcentral focusing until the full definition of the image of the object. Then close the left eye and look at the object in the right eyepiece, just adjust the sharpness of the image for the right eyepiece by rotating the dioptric adjustment ring. Done - binoculars focus and in the future you will only need the focus head. If the settings fail, you can correct them or reconfigure them. binoculars with the help of plus / minus marks.

4

If you need to change the magnification, turnthe zoom lever on the binoculars to the desired values, and then rotate the center focus ring until you achieve clarity. Note that each time you change the magnification, you need to reconfigure the focus.

5

If you are setting up binoculars with variable multiplicity, to focus it betterat maximum magnification, this will reduce the need for further adjustment of the focus each time the magnification is changed. In order to focus on a closer subject, focus first on the farthest possible, and then reduce the magnification of the binoculars. Usually, in binoculars with variable multiplicity, the image is better and sharper at a closer distance.

You will need

• - screwdriver;
• - A sharp knife.

Instructions

1

Unplug the notebook from the power source, remove the battery and disconnect the power wires. Unscrew all fasteners from the back of the case.

2

Remove the hard disk drive cover, it's therethe biggest. Pry it with your fingers or a sharp knife, carefully, so as not to damage the surface. Unscrew the fastenings of the hard drive, remove it by disconnecting the wires.

3

Similarly, remove the drive. Be especially careful with him. There will be another fastener under it. Unscrew it. Remove the RAM modules (this is not necessary), unplug the Wi-Fi antenna.

4

Turn the laptop upside-down, unscrew itbolts from the panel above the keyboard. Gently pry her until the clamp snaps. Be careful, this is a very fragile detail. Then turn the laptop over. Carefully remove the keyboard. It is not recommended to disassemble it completely by the buttons, because there are small fragile elements inside it, which are very easy to break or lose.

5

Remove the panel with the on / off buttons with a light knife, in the same way remove the clips from the side of the battery compartment, which is only 4. Turn the laptop back.

6

Remove the panel that was located underneathkeyboard, for this, pierce it with a little screwdriver and unlock the clamps. You will open two more hidden fasteners, unscrew them. Carefully detach the touchpad, speakers and screen, especially be careful with the wires and cables of the devices - many of them then will be hard to get.

7

Reverse the laptop with the back cover up,remove the main panel, remove the cooler and clean the computer of dirt and dust, you can use a vacuum cleaner or other means convenient for you. Assembly takes place in the reverse order.

You will need

• - Flat screwdriver;
• - Rubber hammer;
• - a hammer;
• - crosshead screwdriver;
• - ring drill

Instructions

1

Turn the computer chair upwards with the five-finger and unscrew the four screws that connect the seat of the chair with the height adjustment mechanism - pyastra. Remove the seat of the chair.

2

Disconnect the piaster from the gas lift.fastening of these parts there are no threaded joints, to knock down the piastrum from the gaslift, you can tap it lightly with a hammer. For this type of work it is recommended to use a rubber mallet to avoid damaging or bending the piastrum. It should be noted that if the chair has been in operation for a long time, considerable effort may be required to disconnect these parts.

3

Remove the cross from the gas lift. Look at the gas lift. In the lower part of it there is a special fastening washer, which instantly breaks when a hammer strikes it. Therefore, in order to detach the cross from the gas lift, it is necessary to use a special tool - a ring drill. Put the cross of the computer chair between the two tables. Install the ring protrusion. Knock out the gas lift from the crosspiece with a heavy hammer.

4

Remove the wheels of the chair. Pull them out of the nests quite possibly with your hands. If during this operation the metal pin of the wheel remains in the cross of the chair - remove it with the help of pliers.

5

Examine the crosspiece. In its center there is a ring with five protrusions, which serve to fix the plastic casing. Unclip and fold the edge of the casing with a flat screwdriver. Slide the cover and remove its edge from the protrusion. Carry out the same procedure for all 5 casings. Remove the plugs from the metal casing. Your computer chair is dismantled.

Instructions

1

Binoculars should be chosen taking into account its main characteristics, which include: lens diameter, multiplicity, field width and body properties.

2

First of all, pay attention to the case. It should be strong enough, while ensuring maximum protection of the binoculars from moisture and good water resistance. Lenses should be protected from fogging. In case of accidental impacts and falls, the enclosure must not break or crack. In view of the foregoing, the best option for purchase may be a rubberized model that provides the necessary protection for the hull and sufficient tightness.

3

The multiplicity of binoculars characterizes its abilityenlarge the images of the items under consideration. The multiplicity of three to ten can be considered optimal and effective. This will be enough to get a clear and clear image. Although everything depends on the purpose of use.

4

The diameter of the lens determines the light force (the force of penetration of light) into the optics of the binoculars. Therefore, the larger the diameter of the lens, the lighter the image in the eyepiece of the binoculars will be.

5

The width of the field of view determines the area (in width), which can be considered at a distance of one thousand meters.

6

The choice of binoculars depends entirely on thewhat goals it is acquired. To observe the starry sky it is necessary to focus on a large diameter of the lens and a large magnification of the magnification. It is highly desirable that the binoculars have an adapter for the tripod, since at a high multiplicity without a strong stand the image starts to vibrate and tremble. For walks in the sea and river open spaces, a sealed and waterproof binoculars should be selected, which will reliably protect the optics from moisture. Zayadlyh hunters and fishermen are quite will satisfy a strong rubberized model, which has a multiplicity of 4 to 7 and a lens diameter of 25-40 mm. This model is suitable for experienced tourists. It is necessary to take into account that in hunting the overall dimensions of binoculars play a special role, and the smaller they are, the better.

7

When choosing binoculars,whether it provides protection from fogging lenses. This is a very useful quality when using binoculars in the cold season of the year, taking into account the possibility of transferring binoculars from a warm room to cold air and vice versa.

You will need

• Screwdriver, blade.

Instructions

1

We open the secret - in the overwhelming number of caseseverything is fixable. You can completely correct misalignment on your own. The main thing is to act neatly, otherwise you can further exacerbate the situation. With careful handling, eliminating the problem will not be difficult.

2

If you have binoculars with Porro prisms (pipes withcharacteristic break), then in 9 cases out of 10, in the case of misalignment, one of the lenses that specially have a small displacement of the thread relative to the optical axis should be rotated around the axis. When making adjustments, each time visually check the clarity of the image.

3

Binoculars of another common type - withprisms "with a roof", which are distinguished by straight pipes, have special screws that hold the prism block in the desired position. Rotating these screws using an hour screwdriver or a suitable blade, you can shift the axis of one of the tubes to align the images with the second one.

4

Theater binoculars (without prisms and with scatteringeyepiece) due to a small increase are less sensitive to shock, but if necessary, are repaired the same way. And, what should be paid special attention to, you can not try to eliminate the double, with a force shifting the pipes themselves - with a high probability you will break them.

Characteristics of mineral wool and "Penoplex"

Which is better: Minvata or Penoplex?

You will need

• - Laptop Asus X200LA;
• - Screwdriver Set;
• - tweezers.

Instructions

1

We unscrew 6 short screws along the perimeter of the bottom of the Asus X200L laptop and 1 long screw in the center. We pull out two rubber plugs, under them we twist 2 more long screws.

2

We insert a flat hard, but not metalsubject (for example, a plastic card), and unfasten the latch on the perimeter of the laptop. This way we detach the bottom from the top with the keyboard. Be careful, you need to lift the top cover to yourself, because From the bottom, it connects to the motherboard with a loop. To disconnect it, gently lift the latch on the connector of the cable up, and the cable exits the connector. The same thing we do with the second one.

3

To remove the hard drive, it is necessary to lift the soft protective gasket and remove the 4 screws. After that, pull the disk in the direction opposite to the center of the laptop, and it is easily removed.

4

We take out the battery from the laptop Asus X200L. To do this, unscrew 1 screw and lift it up. It will come out of the connector, and now it can be removed.

5

To remove the screen with the touchscreen, you need topick it up with a plastic card near the hinges of the top cover and walk around the perimeter of the screen. The latches will unfasten and the screen will separate from the top cover.

6

Now remove the plastic latches that close the hinges. Just pull them on themselves, and they are easily removed.

7

Remained a couple of details. You need to disconnect 1 large connector on the left side of the laptop. Just pull it up, and it goes away. Now turn off the WiFi module (2 thin wires) and power.

8

Now you have access to all the inside of the Asus X200L notebook.

You will need

• - puller for flywheel;
• - a new bolt of fastening of a flywheel;
• - hammer, chisel, shock screwdriver;
• - a set of spanners.

Instructions

1

Before disassembling, make sure that the motorcycle is firmly mounted on the tripod or fixed with special brackets. Make sure that the ignition is turned off, the fuel supply from the gas tank is blocked.

2

If work is planned related to the cylinder heads or adjusting the valve clearance, there is no need to dismantle the motor. In all other cases, you can not do without removing the engine.

3

Remove the propeller shaft and rear axle. It is possible to remove the motor from the frame without this procedure, but it will be more difficult and longer to work. Disconnect the carburetor cables, then the wiring harnesses and exhaust manifolds (exhaust pipes). Remove the mounting bolts first of the upper fastening, then the lower one. The bottom is a nut with studs. Hairpins should also be removed.

4

After this, remove the engine from the frame together with thegearbox. Disconnect the gearbox. Note that the fastening screws for the gearbox are very tight. They were also welded to old motors. After disconnecting the box, remove the two-plate clutch.

5

The clutch screws are as tightly clamped asfastening screws of the gearbox. To use them, use a shock screwdriver. The clutch pressure plate must be removed using the same impact screwdriver, by inserting into the square hole a similar part of the clutch rod.

6

Left side of the crankcase, a little lowerThe filler cap is provided with a hole for checking the ignition timing. Remove the protective plug on this hole and manually rotate the crankshaft until two marks appear. If they coincide, the advance angle is set correctly.

7

Remove the front motor cover, then switch onignition and touch the screwdriver to the ignition coil core. If the screwdriver is attracted to the core, the contacts of the breaker-distributor are closed. Turn the crankshaft until the contacts open and the screwdriver stops attracting. Then open the breaker contacts.

8

If necessary, remove camshaft,first remove the gear and take out the valve tappets so that the camshaft does not get stuck. Remove the breather located on the timing gear. The gear of the oil pump drive is located on the rear of the camshaft. To check it, unscrew the upper plug on the crankcase. Even if there is no need to check it, make sure that it is tightly closed. Otherwise, she will pass the oil while driving.

9

To remove the flywheel, use a specialpuller. Bolt fastening flywheel is screwed very firmly, so it is knocked out with a hammer and chisel. When assembling the engine, a new bolt must be screwed in. Behind the flywheel is the rear crankshaft support. To remove it, you must unscrew the bolts, tied with wire. Remember how they are wrapped, so that when assembling, install them correctly. Before assembly, be sure to replace the rubber rings on the slide and glands.

For example, such optical characteristics are:

• difference in magnification;
• parallelism of ray beams coming from the eyepieces;
• The angle difference when the image is rotated in the left and right handset.

According to the law, producers should be responsible forprovision of their goods with health-safe values ​​of these characteristics of binoculars. First, you need to know which binoculars you want to select, for which needs you will need. One of the main factors in choosing such an optical device is the temperature range of operation of the binoculars, in which it retains its operability. Manufacturers of such devices are required to indicate performance characteristics in the accompanying documentation. The second factor in choosing products is the material from which the optical device body is made. The quality cases of binoculars are made of light metal alloys (magnesium, aluminum, etc.), but at the same time on the market you can find binoculars made of fiberglass, various types of plastics, etc.

So which model to choose?

Optical devices made of plasticmuch easier, which is much more convenient for operation. But, one should know that the most modern plastics can not be better than metal alloys for reliability and temperature differences. Therefore, focusing on the temperature drops in Russia, manufacturers do not abandon the cases made of metal. It is also necessary to know that binoculars are a long-lasting product, and you will need to know who to claim for quality and free removal of defects. Therefore, the seller must provide you with documentary guarantees and confirmation that the device you are buying has the necessary technical characteristics. So, in this article you have found almost all the features of binoculars, noted the parameters that are harmful to health, explained the optical characteristics. We hope that this will help you, choose the binoculars that you need.