In detail: do-it-yourself pneumatic ratchet repair from a real master for the site my.housecope.com.
The principle of operation of a pneumohagakert
Types of faults
Disassembly of the pneumatic wrench
Repair of pneumatic impact wrench
Lubricant for pneumatic impact wrench
Conclusion
The pneumatic wrench is an indispensable tool for working with threaded connections. It is widely used in car services and numerous construction works. Perfectly tightens nuts and loosens tight connections.
The design of a pneumatic impact wrench is quite simple, but at the same time it consists of many details incomprehensible at first glance. Often, the parts of the mechanism have sufficient strength for a long service life and fail only due to wear or increased stress. Most of these problems can be detected at home without the need to contact a specialist. How to determine the location of the breakdown and fix the malfunction, we will tell you in this article.
To understand the reason for the breakdown of a tool, you should understand how it works (fortunately, the mechanism is very simple here). The pneumatic wrench consists of a fitting to which the air hose from the compressor is connected. Next is the start button, which directs the air flow into the cylinder with the rotor and blades, spinning high pressure. The motor transmits rotational movements to the stop, where the attachments for tightening the nuts are installed. If the impact wrench, then between the stop and the rotor, the impact mechanism is located.
For greater clarity and understanding of the wrench device, below are photos and videos of the tool in analysis.
Breakdowns or malfunctions of the nutrunner can be caused by wear, damage or severe contamination of its mechanism. There are many video faults, below we list the most common ones.
Video (click to play).
Low power even at maximum speed and high pressure.
Speeds or reverse are not working.
The instrument is warming up
The chuck does not rotate
Increased noise and vibration
Parts such as bearings, rotor blades, valves, springs, impact cams, gaskets, and speed control can be the cause of these problems. Depending on the level of damage to the part, it can be repaired or replaced. Let's take a look at how you can bring your impact wrench back to life.
Usually, this process does not cause any particular difficulties, due to the simplicity of the tool design and the minimum number of unscrewed elements. The first thing to do in order to get to the “guts” is to unscrew a few bolts on the back cover with a hexagon. After unscrewing, remove the cover with the gasket and the speed regulator. Having gained access to the main mechanism, we carefully remove it from the case, be sure to remember the sequence of parts. If you are afraid to mix up the parts when assembling, shoot the disassembly in a photo or video.
After taking out all the parts, the first thing we need to do is evaluate their appearance. Parts must be lubricated, free from rust and oxidation. Next, we need to look at the mechanism for chips. If parts are damaged, they must be replaced. You can read the name of the pneumatic wrench parts in the picture above.
If your tool has been out of use for many years and before the malfunction it has not been used for a long time, then perhaps the cause of the breakdown lies in banal corrosion and rust formed on the mechanism for a long time of inactivity of the tool. The solution to this problem may be elementary cleaning of parts with subsequent lubrication.Even if this method does not return your tool to work in order to work in the future, it should not be dirty and without lubrication.
The tool may not function or function improperly even with a clean, lubricated mechanism. In this case, the cause of the malfunction lies clearly in the breakdown or wear of a certain part. Here you should carefully examine each component for chips, cracks or abrasions. More attention should be paid to the bearings and rotor blades, as these are the most prone to mechanical damage.
You should also carefully inspect the cylinder block and make sure that the rotor blades fit snugly against its walls. This happens when the wrench runs for a long time without oil, as a result of which the rotational force decreases significantly. If there is a clear backlash, you have 2 options for repairing the pneumatic impact wrench: installing a new block or grinding the old one. Grinding is required on the machine for a perfectly flat surface.
The service life of any power tool largely depends on the quality of lubrication of its parts. The easier the mechanism is to operate, the less wear and tear will occur. If you want the wrench to serve you faithfully for more than one year, follow the basic rules for maintaining the tool.
To add oil to the wrench mechanism, you do not need to disassemble it. It is enough to add about 8-10 drops of grease to the tool nozzle where the air hose is installed, then start and let it idle for 30 seconds so that the oil is quickly distributed over the parts. This procedure should be repeated every 3-4 hours during continuous operation, as well as before putting the tool away for storage.
If you use the tool all the time, adding oil every 4 hours can become a chore. To eliminate unnecessary distractions from your workflow, install a wrench oiler (lubricator) that will deliver oil gradually as you work. This method is more convenient and provides constant lubrication of parts, just remember to add oil to the lubricator itself.
Health does not really allow you to strain the nuts to twist, and my hands itch, so I want to buy a pneumatic ratchet in the garage like this Has anyone had the experience of spinning a car with pneumatic ratchets, is it useful?
Unfortunately, friends / acquaintances have no experience in this regard. The purpose of buying a ratchet is to turn most of the nuts and bolts in the car not with your hands. It is clear that she will not unscrew the hub nuts? but what about the common Japanese auto 12/14/17/19 nuts / bolts?
a pneumatic wrench-pistol is ordinary, as in a tire changer, it is clear that it will turn everything off, but they are far from everywhere crawling. more precisely, you can count the places on your fingers where they can crawl.
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afpf (22 July 2014 - 10:22) wrote:
like so! and what about the air pressure in the system, we can be in trouble,
maybe it is not assembled correctly !! here it would be necessary to look at it!
Post has been editedDrumnik 1:22 July 2014 - 10:29
Repair of pneumatic guns, rifles, pistols can be carried out independently. This will require care and accuracy when disassembling the device and manipulating parts, replacing them. During repair work, it is possible not only to restore weapons that are in disrepair, but also to improve the quality of their work, in comparison with the original state.
Features of repair of parts of pneumatic weapons:
Air rifle repair
In addition to performing work with the help of which the repair and modernization of pneumatic weapons is carried out, immediately after its purchase, adjustment of the rear part of the butt is required. This element can be moved from side to side within 1.5 cm.
To customize the sight and the ability to adjust the weapon for yourself, and also after replacing this element, it is necessary to twist the screws located nearby. The settings are changed after each shot fired from a distance of 10 m from the target.
This element often wears out in models that have been used for a long time. (for example, in a Makarov air pistol). Sometimes situations occur that only rubber rings remain completely suitable for use from the drive.
You can independently perform a radical upgrade of weapons by making a new drive:
These rules will also come in handy when upgrading PCP and Glacier pneumatics, more about it later.
Often, replacing the drive helps to update the operation of the old weapon, which no one expected to function. Thanks to this method, it is possible to quickly and easily repair and upgrade pneumatic weapons.
If you bought yourself a pneumatics, you should definitely purchase a high pressure pneumatics pump.
Read about the types and names of pistols here.
For information on how to shoot a sniper rifle correctly, see: https://my.housecope.com/wp-content/uploads/ext/2522/obuchenie/snajperskaya.html
If any of the elements are installed incorrectly or do not fit well together, severe air leakage occurs, which degrades the performance of the entire system. The main problem leading to depressurization is the work of the rammer.
It has special rubber rings that fit snugly against the surrounding external and internal parts. If they are not installed, you should cut them out yourself and install them into the system. They are invariably present in modern weapons.
The condition of the rubber rings should be monitored regularly. After about 1500 shots have passed, they begin to let air through. As soon as this imperfection is noticed, you should immediately replace the rubber elements with new ones.
Review material about the air pistol Drozd, read here.
Air spring
A suitable spring is purchased. When buying, you don't need to pay attention to its length. Only diameter and elasticity matter. When reinstalling, sometimes it becomes necessary to shorten this element. For this, the required number of rings is cut off.
If the owner is not satisfied with the power of the weapon that the manufacturer has given it, drastic changes will be required regarding the boring of the heel counter.
In this case, more space is left for the spring by cutting a layer of metal from the inside of the backdrop. Usually the maximum thickness of the cut layer does not exceed 1.5 cm, sometimes a little more.
To enhance the effect, you can sharpen the teeth on the cocking lever if a ratchet is not provided for a particular type of weapon. These manipulations can only be performed when modernizing the metal structure. If it is necessary to increase the area for the spring with a plastic backdrop, you will have to replace it with a metal structure, otherwise a person risks breaking the weapon.
See also the material on how to handle Diana air rifles here.
afpf (22 July 2014 - 10:22) wrote:
If you bought yourself a pneumatics, you should definitely purchase a high pressure pneumatics pump.
