When a refrigerator breaks down, a person prefers to immediately send it to a landfill and purchase a new unit for freezing food. It’s still worth leaving the compressor from the refrigerator, because this part household appliance can be very useful to a person. You can use a refrigerator compressor to inflate tires, pump out water, and even use this tool in airbrushing. But before discussing the nuances of using the unit, you still need to get it. To do this, you need to find a unit that looks like a large black pot at the bottom of the refrigerator. Next, unscrew the bolts and nuts that secure the part to the refrigerator itself. Using a hacksaw, the compressor must be sawed off from the refrigerator radiator. Now all that remains is to check functionality compressor. To do this, it is connected to the network, and if the part begins to make characteristic sounds, then it is working.
The extracted compressor from the refrigerator can be used to repair other large-sized household appliances. So, for example, if a person’s compressor on another refrigerator fails, the part can be safely replaced and continued use of the equipment. However, craftsmen often find completely different areas for using this unit. For example, a compressor is very often used in garages to pump tires and pump out oil. But before you start using it, you will have to install a special receiver. The receiver itself is required for the unit to operate normally and uninterruptedly, without overloading the network. Also, this nuance should be observed so that during operation the compressor does not splash oil. The receiver should be secured to the compressor pipes, additionally checking the strength of the connection. After this, you can proceed to operating the compressor for your own purposes.
The old refrigerator compressor finds its widest application in the garage. It was already mentioned above that the technique can be used to inflate tires, due to the fact that the compressor itself is capable of distilling air. To inflate tires, the unit only needs to be plugged in and connected to the tire. But you can only inflate no more than two tires in this way, since the compressor from the refrigerator works quite slowly, but at the same time it can significantly overload the network. The refrigerator compressor has sufficient pressure to pump car tires. To inflate a bicycle wheel, you can use, for example, a part from an air conditioner. Another area of application for a compressor in a garage is to pump out excess oil. Here you need to unscrew the oil filter and use a compressor to pump out required amount oils The process itself usually takes no more than 2-3 minutes, but you need to monitor the oil level all the time.
One of the most popular uses for an old compressor is for airbrushing purposes. The art of airbrushing involves the use of a special apparatus for applying a design using a special technique. The compressor will become just such a unit, and quite powerful. To assemble the airbrush you will need old compressor, receiver, rubber tube, fine filters, vinyl chloride tube, mounting clamps and furniture screws. Before assembling the airbrush, it is necessary to replace the oil in the compressor with a simple car oil, as this will have a positive effect on the operation of the equipment. Next, you should connect the receiver, connect the start relay and the filling tube to the compressor. The gasoline filter should be attached to the compressor itself, the diesel filter to the receiver. By connecting the entire structure using the existing tubes, you can connect the airbrush to the network and use it to create original drawings.
An old compressor can also be used effectively to pump water out of a water supply system. For example, when replacing or repairing a water supply system, it is often difficult to pump out all the liquid from the pipes, and this complicates all further actions. This is why experts recommend using a compressor. To create a water pumping system you will need a simple, Glass bottle, two suction tubes and liquid in a special container. One suction tube must be connected to the compressor, leaving the other end in the bottle. After this, it is recommended to close the bottle itself to create a vacuum. The second tube should also be taken into the bottle, and its end should be left in a container of water. Essentially, the water pumping unit is ready and you can start using it. With the help of one more hole on the compressor, you can easily pump out liquid from the water supply system, significantly making the repair process easier for yourself.
All of the above methods of using a compressor are real, but, of course, you should only resort to them if you have special technical knowledge. If a person himself has little idea of what a compressor looks like and how to create a unit for inflating tires from it, then it is better not to start working with this part of the refrigerator. On the Internet you can find many instructions for converting a compressor for a variety of purposes, and here it is very important to take into account the scope of application of the unit. Also, when working with it, it is necessary to observe safety precautions, making sure that the network is not under too much voltage. An old and rusty compressor can serve a person for a long time. That is why, if the owner of the refrigerator does not plan to use it, it is better to immediately send the equipment for recycling, where the old compressor will certainly find its use in various areas.
Recently, compressors have gained popularity among tinkerers. They are made on the basis of almost any engine, calculating the power of the base unit depending on the number of consumers. Homemade ones are in demand for home workshops. compressor units made with your own hands.
Refrigerator compressors often remain operational after the refrigerator itself breaks down or becomes obsolete. They are low-power, but unpretentious in operation. And many masters make quite decent ones from them. homemade installations. Let's see how you can do this yourself.
Parts and materials
Required parts:- 11 kg propane tank;
- 1/2" coupling with internal thread and plug;
- Metal plates, width – 3-4 cm, thickness – 2-4 mm;
- Two wheels with mounting platform;
- Refrigeration compressor from a refrigerator;
- 1/4 inch adapter;
- Brass check valve connector;
- Copper pipe connector ¼ inch – 2 pcs;
- Equipment for adjusting compressor pressure;
- Bolts, screws, nuts, fumlenta.
- Welding inverter;
- Screwdriver or drill;
- Metal cutters with titanium coating;
- A turbine or drill with abrasive attachments;
- Metal brush;
- Roller for copper tubes;
- Adjustable wrenches, pliers.
Assembling the compressor
Step one - preparing the receiver
We rinse the empty liquefied propane cylinder thoroughly with water. It is very important to remove all remaining explosive gas mixtures in this way.
We overlap the adapter by 1/4 inch into the end hole of the cylinder. We scald it on all sides by welding and seal it with a screw.
We place the receiver on wheels and supports. To do this, we take pieces of metal plates, bend them at an angle and weld them onto the body from the bottom. We weld wheels with a mounting platform to the corners. We mount a support bracket in the front part of the receiver.
Step two - install the compressor
On top of the receiver we place mounting frames for the compressor made of metal plates. We check their position with a bubble level and scald them. We seat the compressor on the clamping bolts through rubber shock-absorbing pads. U of this type The compressor will use only one outlet through which air is pumped into the receiver. The remaining two, which suck in air, will remain untouched.
Step three - attach the check valve and adapter to the equipment
We select a metal cutter of suitable diameter and use a screwdriver or drill to make a hole in the housing for the coupling. If there are protruding shapes on the coupling body, grind them down with a drill (for this you can use a regular electric sandpaper or a grinder with grinding disc).
Place the coupling in the hole and weld it around the circumference. Its internal thread must match the pitch and diameter of the landing thread on the check valve.
We use brass check valve for small compressors. We plug the pressure release outlet with a suitable bolt, since the control assembly already has a release valve.
To install a pressure switch or pressure switch with all the control equipment, we mount another 1/4-inch adapter. We make a hole for it in the center of the receiver, not far from the compressor.
We tighten the check valve with a 1/2-inch adapter.
We connect the compressor cylinder outlet and the check valve with a copper tube. For this special tool We flare the ends of the copper tubes and connect them with brass threaded adapters. We tighten the connection with adjustable wrenches.
Step four - install the control equipment
The assembly of control equipment consists of a pressure switch (pressostat) with a control sensor, safety valve or pressure relief valve, coupling adapter with external thread and several taps and pressure gauges.
First of all, we install the pressure switch. It must be slightly raised to the level of the compressor. We use an extension coupling with an external thread and screw the relay through the sealing tape.
Through the adapter we install a pressure regulation sensor with pressure gauges. We complete the assembly with a pressure relief valve and two taps for the hose outlets.
Step five - connect the electrical
Using a screwdriver, we disassemble the housing of the pressure switch, opening access to the contacts. We connect the 3-core cable to the contact group, and distribute each of the wires according to the connection diagram (including grounding).
Similarly, we connect the power cable, equipped with a plug for a power outlet. Screw the relay cover back into place.
Step six – revision and test run
To carry the compressor unit, we attach a special handle to the compressor frame. We make it from scraps of profile square and round pipe. We attach it to the clamping bolts and paint it in the color of the compressor.
We connect the installation to a 220 V network and check its functionality. According to the author, to obtain a pressure of 90 psi or 6 atm, this compressor needs 10 minutes. Using an adjusting sensor, the activation of the compressor after a pressure drop is also regulated from a certain indicator displayed on the pressure gauge. In his case, the author configured the installation so that the compressor would turn on again from 60 psi or 4 atm.
The last operation left is an oil change. This is an important part Maintenance such installations, because they do not have an inspection window. And without oil, such machines can work for only a short time.
We unscrew the drain bolt at the bottom of the compressor and drain the waste into a bottle. Turning the compressor on its side, fill in a little clean oil and screw the plug back on. Now everything is in order, you can use our compressor unit!
Often an old, unused refrigerator still has a fully functional compressor. It can be slightly modernized to result in a complete installation suitable for use in for various purposes- most often they are used for painting, inflating car tires, performing airbrushing or powering pneumatic devices. Let's look at how to make a compressor with your own hands from an old refrigerator.
Parts and tools needed to make a compressor
To make a refrigerator compressor with your own hands, you will need the following tools:
- Welding machine (inverter).
- Electric drill, screwdriver.
- Drill, engraving mini-drill with a set of cutters.
- A brush with metal bristles to remove rust.
- Pliers, set wrenches, adjustable wrench.
From the materials you need to prepare:
- Steel plates 2–3 mm thick and 3–4 cm wide.
- Two supports on wheels.
- 1/4 inch adapter.
- Blind half-inch coupling with internal thread.
- Check valve and connector for it.
- Two half-inch copper couplings for a copper pipe.
- Clamping bolts, nuts, other fasteners, fum tape.
During the work process, it may be necessary to use other tools or materials. So, instead of a propane cylinder, a fire extinguisher housing or a ready-made car receiver can be used. Some craftsmen suggest installing plastic containers, which should be avoided, since refrigerator compressors can create high pressure, capable of tearing such a receiver.
The process of making a compressor from a refrigerator
The technology for making a homemade compressor from a refrigerator consists of several stages.
Receiver
To make a compressor from a refrigerator, you need a high-quality receiver. For this purpose it is used metal container with sealed outlet - empty gas cylinder for 11 liters. First of all, you need to get rid of the remaining gas mixture in the cylinder, for which the inside is thoroughly washed with water. Then a 1/4-inch adapter is applied to the hole in the end and welded end-to-end with maximum seam tightness. The finished adapter should be plugged with a bolt.
At the bottom of the cylinder welded method supports with wheels are installed. For stability, a support is welded in the upper part, ensuring horizontal position. The result is a cylinder resting on three points (two wheels and a support bracket), equipped with an outlet fitting.
Compressor installation
The next step is to install the compressor on the receiver. To do this, you will need to weld two mounting brackets on top of the horizontally located cylinder. The distance between them corresponds to the position of the mounting holes on the compressor, which will be fixed to the brackets with clamping bolts. To ensure silent operation, which is typical for homemade compressor units made from old refrigerators, rubber gaskets should be installed between the device body and the brackets.
Important! Before installing the compressor, it is necessary to replace the oil located inside it with another one that is neutral to the action of air (Lukoil 10 W-40 is suitable). The oil is changed through a sealed outlet, which should then be sealed again. To prevent oil from entering the air, it is necessary to install a filter at the outlet of the compressor.
Check valve and adapter for equipment
Installation of check valves - diagram
The next stage in the manufacture of a homemade compressor is the installation of a check valve and an adapter for connecting control equipment. To do this, you will need to drill the appropriate holes in the receiver body - it is more convenient to place the check valve on the side, and for the equipment - on top, near the compressor.
A coupling with an internal thread, the same as that of a check valve, is welded into the receiver body. It is necessary to plug the pressure relief hole on it, since similar device available in the control equipment unit taken from an old refrigerator.
The hole is plugged with a screw, for which a thread is pre-cut. The screw is wrapped with fum tape and screwed tightly into the hole. The check valve is then connected to the compressor outlet using a copper half-inch coupling connector. The ends of the tubes with pre-inserted coupling parts are flared, after which the coupling is tightly connected.
Installation of control equipment
It is best to use the adjustment equipment that was installed on the refrigerator complete with the compressor. They fit together optimally. The control assembly usually includes a pressure switch, pressure relief valves, pressure gauges and several regulators.
First, a pressure switch is installed. This is a black box with a pressure gauge, it is connected through an extension with a male thread to the outlet at the top of the cylinder next to the compressor. Then all other parts of the assembly are connected to the relay.
Control equipment on the compressor
Electrical connection
The compressor power wires from the refrigerator are connected to the corresponding contacts of the pressure switch. To do this, you need to remove the cover from the relay, after which the contacts will become visible. The three-core compressor wire (with grounding) is connected to the corresponding contacts (they are marked with special markings), and the power wire equipped with a plug for the power outlet is connected in a similar way. The strength of the connection of the contacts is checked, the relay cover is installed in place.
Checking the operation of a homemade compressor
After connecting all the parts and connecting the power wires, a test run is performed and the operating mode is adjusted. The compressor is connected to the network, and using the adjusting assembly, the mode of turning the device on/off is adjusted when a certain pressure is reached.
It is not recommended to install immediately high values, since leaks may be detected welded joint on one of the fittings. Defects found must be eliminated, for which the device is disconnected from the network, the pressure accumulated during trial run, is reset, the detected defects are eliminated. After this, the device is reconnected to the network and put into operation.
There is no need to talk once again about why a compressor is needed, because this is already clear. But not everyone can make it from a refrigerator with their own hands. However, with patience, necessary tool and theoretical knowledge, this task can be completed, and quite quickly. Such equipment can be used together with an airbrush, spray gun, etc. tool. Its key features are that the operation is almost silent and the dimensions are small. But such a compressor creates very good pressure.
Why homemade and not professional?
You probably already know the answer to this question. Often it's a matter of price. Professional compressors have high price. And if you have an old refrigerator that is sitting idle, then why not occupy yourself for a few hours and make a compressor yourself. As for the design, it is different, but not very much. Purchased models have an electric motor that transmits work through a belt drive. In our case, the electric motor and the working chamber will be located in the same housing, but there is no belt drive.
Less in homemade product and automation. Although overheating protection needs to be installed. This relay will save your engine from high temperatures and prevent breakage. As for lubrication, professional compressors can be dry, that is, without lubrication. Such models operate using graphite rings. In our case, there will be a lot of lubricant, which directly affects the durability of the equipment.
It is worth noting that making a homemade compressor from a refrigerator with your own hands is not so difficult. But you need to understand that this requires attention to detail. In any case, if you succeed, then at the end you will have a functional station that can be adjusted as you want and arranged in the way that is convenient for you. Unfortunately, all this cannot be done with purchased equipment.
Dismantling works
Before using the compressor, it must be removed from the refrigerator and equipped accordingly. But more on that later. Now let’s talk about how to carry out the dismantling work. There is nothing complicated here. You will need a small set of tools: pliers, two screwdrivers (flathead and Phillips), a pair of spanners. Probably everyone knows where the compressor is located. This is usually the lower back of the refrigerator.
Now you can start withdrawing. You will see copper pipes that lead to the cooling system. Use pliers to bite them off. Preferably with maximum vacation. In the future, you can use them for your own purposes. It is worth drawing your attention to the fact that you need to bite off the tubes and not try to saw them with a file. "Why?" - you ask. It’s simple; when sawing, small chips are necessarily formed, which in one size or another enter the compressor, which can lead to a deterioration in its technical condition, even to the point of breakdown.
The work is not finished yet; we need to remove an equally important element - the starting relay. This is usually a white or black small box with wires coming in and out of it. Carefully unscrew the fasteners and bite off the wires leading to the plug. Mark in advance where the relay is top and bottom. This may be indicated on the case, check. needed to remove the compressor body. So we removed the compressor from the refrigerator with our own hands. One more thing, take all fasteners with you, they will be useful to you.
Checking the functionality of the equipment
The first thing after removal is to make sure that the compressor has not “died” and can be used for its own purposes. To do this, you need to flatten the copper tubes using pliers. This is done so that air can flow in and out freely through them. On next stage we need to put the start relay in the position it was in before removal. This is extremely important. The fact is that the relay works on the principle of heating the plates and gravity. Incorrect orientation will cause it to break. The compressor winding may even burn out, which is not good.
The relay has incoming wires. You need to screw a wire with a plug to them. The connection point must be tightened with electrical tape to avoid electric shock. After this, you can plug the plug into the socket. If the compressor rattles quietly and air comes out of the tube, then you have done everything correctly and the equipment can be used. At this stage, it is recommended to mark the tubes so that you know which one the air is coming out of and which one is going in. If problems arise during operation, say, the compressor does not turn on or turns off after a while, then you will have to test the relay and find the weak link. This procedure requires minimal knowledge of electrical circuits and electrical engineering in general.
Materials required for work
Before you make a compressor from a refrigerator, you need to acquire everything you need for work. Firstly, this is the compressor. We have already figured out how to remove the motor (compressor) from the refrigerator, so you should have it at hand. By the way, on different models Refrigeration equipment has various compressors installed. They are usually a product cylindrical or the so-called pot.
In order to produce a high-quality compressor that would fulfill its purpose 100%, you need to acquire a receiver. Essentially, this is a container into which the engine from the refrigerator will pump air. Basically, there are no certain requirements presented to the receiver. An old empty fire extinguisher or a receiver from a truck will do. The volume can be different - from 3 liters and more. Also, before making a compressor from a refrigerator, you need to find suitable hoses. The length of two of them should be 10 cm or more, the last one should be at least 50-60 cm. It is very convenient to take car hoses here. The fact is that they will be attached to filters, and their size is perfect for these purposes.
As for consumables, these are two filters - gasoline and diesel, clamps, wire, epoxy resin, pressure gauge. As for the tool, every owner has one in his workshop. You need a drill, knife, screwdriver and pliers. Once you've got it all together, you can start doing the work.
from the refrigerator: step-by-step instructions
Most compressors have three outputs. copper tubes. Two of them are open, the ones you bit off with pliers, and one is sealed. Usually it is the shortest. Accordingly, the tube from which air blows is the output, and the one that sucks in is the input. We won’t touch on the third one yet, but a little later we’ll figure out what it’s for and what to do with it. So, after checking the output and input, make the appropriate marks and disconnect the compressor from the network. Next we take a pre-prepared board. She will be our basis. Using self-tapping screws, we attach the compressor to the board. The tubes must be further processed before connecting. It is advisable not to use a metal file; it is better to use pliers.
One important point: the compressor must be attached to the base in exactly the same way as it was installed on the refrigerator. Installation sideways or upside down is not permitted. This is due to the already familiar start relay, which operates due to gravitational forces. Our DIY compressor from a refrigerator has not yet been made. Now we need to make a receiver. A plastic container will do. In its upper part we drill two holes for tubes of the appropriate diameter. Then we insert them there and fill it all in epoxy resin for sealing. One of the tubes (input) should not reach the bottom of the receiver a couple of centimeters. The short tube (outlet) extends approximately 10 cm. Such manipulations are needed for more convenient mixing of air.
Iron receiver
"How to make it out of a refrigerator?" - you ask. Yes, it’s very simple, for this you need to use the instructions described above. But there is one thing, for such purposes it is best to take an iron receiver. There is not much difference between plastic and metal, but only on an iron receiver can we install a pressure gauge. In addition, the hoses are sealed or welded rather than filled with resin. This ensures better sealing of the container.
To install a pressure gauge, you need to drill a hole of the appropriate diameter, install the device and solder this place. Although it would be more humane to take the following route. Drill a hole in suitable place and weld a nut in this place. Then all that remains is to screw on the pressure gauge, and the job is done. In principle, there is not much difference, only replacing a failed pressure gauge is much easier. After everything is done, you can attach the receiver to the base. To do this use steel tape or wire. In fact, we almost made a refrigerator compressor with our own hands. There are a few small parts left.
How to make a mini compressor: the last part of installation
We have already walked most of the way. Now there are a few finishing touches left. To begin, take a piece of hose (10 cm) and put it on gasoline filter. If you are using a car hose, there should be no problems with putting it on. If the hoses are thin and do not fit onto the fitting, then as an option they can be heated. The free end of the hose must be put on the inlet of the compressor. If the connections are strong, then clamps do not need to be used, especially since there is practically no pressure here. It is easy to guess that a filter is necessary to prevent dust from entering the compressor. The second section of the hose is connected to the outlet of the compressor and the inlet of the receiver. There will already be a lot of pressure here, so we install clamps. We put a diesel filter on the third hose, and insert the second end into the outlet of the receiver. The outlet fitting of the filter (diesel) is connected to the working hose of a spray gun, airbrush or other equipment. You will probably decide for yourself how you can use the refrigerator compressor and for what purposes.
Technical characteristics and maintenance of equipment
As for the pressure created by the compressor, it is difficult to talk about specific numbers. Much depends on the model and age of the equipment. By the way, “ancient” compressors are more powerful. They are capable of producing about 2-3 bar. Both imported and Soviet models operate almost silently, although there are exceptions.
As for maintenance, this is quite an important point if you do not want your refrigerator compressor to need repair soon. It is not difficult to care for such equipment with your own hands. The main rule is that it is necessary to periodically change gasoline and diesel filters. In addition, it is advisable to drain the oil accumulated in the receiver. The decisive role in the longevity of the equipment is played by high frequency changing the oil in the compressor. This should be done not so often, but at the appointed time. To drain the waste, you need to cut off a piece of the sealed tube. Remember, we mentioned it at the very beginning of the article. The old oil is drained through it and new oil is poured in.
Is it worth repairing the compressor?
Often the refrigerator motor fails. Oddly enough, but often there is no point in repairs. But when it comes to refrigerant, the issue is solved by replacing it. As for other cases, for example, dust getting inside or the winding burning out, it is better to ignore this. It's actually easier and cheaper to buy new engine. But doing it yourself makes sense. There is nothing complicated about this. Moreover, you already know how to remove the compressor from the refrigerator. It is installed in the reverse order. What matters is that the installation is done correctly. That is, the connections of the tubes must be sealed, and the wires must be reliable, that is, insulated. In general, the replacement process itself takes no more than 20 minutes. If you decide to repair the refrigerator compressor yourself, then get ready for difficulties. First, ring the relay, perhaps this is the problem and that is why the equipment does not start. Then in the compressor. If this does not help, then the equipment can be thrown away; there is no particular point in messing with it.
Conclusion
So we figured out how to make a refrigerator compressor with our own hands. In general, during the execution of work, a variety of difficulties may arise. Starting from the fact that the hoses do not fit on the filter, and ending with poor connections or lack of response from the compressor. But most problems can be fixed. In general, such a compressor is a very useful thing. With its help you can do painting and other useful things. The type of airbrush or spray gun you use matters more than the compressor. The main purpose of such equipment is to provide constant pressure. If there is a need for high pressure, say 3.5 bar or higher, then finding a suitable compressor will not be difficult. Most likely, this is a Soviet model. This is due to the fact that modern refrigerator engines, although not powerful, are very productive. That's all on this topic, now you can get down to business.
A compressor from an older refrigerator is usually quiet, although not particularly powerful in comparison with industrial models. But it’s great for airbrushing, tire inflation, blowing, and painting auto parts. Such a compressor is necessary in any home or garage workshop. Gives 6-7 atmospheres, and more is usually not required. Homemade compressor has a number of advantages. Firstly, in view quiet operation, secondly, at cost. A self-made compressor from a refrigerator will cost on average about a thousand rubles.
If you do everything correctly and take care of depreciation, then there will be almost no noise at all. For those who like to make things with their own hands, and this usually happens at night, this moment is extremely important. A compressor is needed for painting parts for modeling and other hobbies that are usually done after the main job. Therefore, noise level restrictions are very important.
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The design of a refrigerator compressor is extremely simple. A container is attached to the compressor from the refrigerator to equalize the pressure, since direct airflow is not stable. This container acts as a receiver and air flow mixer.
What do you need to make a compressor with your own hands and where can you buy all this?
- Refrigerator compressor. You can unscrew it from your old one, or you can buy it at a repair shop that specializes in refrigerators. To avoid confusion, let us explain that the refrigerator motor is the compressor.
- Sealed container that holds pressure well. Receiver. Many people use fire extinguisher cylinders, but there are also plastic containers that are quite resistant to stress. It is important that the container is large enough to mix the air and equalize the pressure from the refrigerator compressor. You can make a receiver from a suitable plastic container from garden sprayers. If the container is plastic, you will need epoxy resin for fastenings.
- Start-up relay. You can take it from the same refrigerator or buy it. But usually the motor and the relay are together, and it is from the relay that the power cord with a plug comes.
- Gasoline filter, diesel filter.
- Pressure gauge. Sold at a plumbing store. Not mandatory, but desirable detail. Installed on a metal receiver.
- FUM tape for connections.
- Three pieces of fuel hose. 2 of 10 centimeters and 1 of about 70.
- A hose that will remove air. You can attach a standard hose from an airbrush or a thicker hose if the equipment will be used for painting cars.
- Clamps, fastenings, electrical tape.
Some DIY experience preferred.
Manufacturing process
The most fuss will be with the receiver. If you use an old fire extinguisher as a receiver, be prepared for the fact that there will be quite a lot of metal work. In addition, it will be necessary to ensure tightness. If we do not have significant experience working with metal with our own hands, it is better to take a plastic receiver.
If you use heavy parts, you should be mentally prepared for the fact that the compressor will be stationary. It’s better to prepare for him right away solid foundation and fasteners.
Compressor preparation
Determine where the compressor has a tube for the incoming air flow and where the outgoing air flow is. To do this, you can briefly plug in the compressor and determine which tube the air is blowing from. Be sure to mark the tubes at the base so as not to mix them up. This can be done with colored electrical tape or a piece of medical tape.
Carefully trim the tubes to about 10cm. This is necessary for easy connection of hoses.
The vertical position is important for the compressor. The relay body has an arrow pointing up.
It will be convenient if we fix the compressor in the correct position.
Receiver
Let's consider a simplified version with plastic canister. Let's cut two holes in the lid for the tubes. The inlet tube must be made long, almost to the bottom. The outgoing one can be made short, about 10cm.
Small sections of about 2-3 cm remain outside.
The structure should be secured with epoxy resin to ensure tightness.
In the case of an old fire extinguisher, the same actions will have to be done by soldering and welding the fittings.
But you can install a pressure gauge on the metal case.
Do not solder parts tightly. It is better to weld nuts and cut threads where possible.
Connecting parts
Attach a gasoline filter to a short piece of fuel hose. Place the other end onto the compressor inlet tube. The filter is needed to prevent dust from falling into the compressor.
Use a second piece of fuel hose to connect the compressor outlet pipe and the receiver inlet tank. The air flow will go from the compressor to the receiver. We put clamps on the hoses, since the air flows under pressure.
Another short piece of fuel hose is needed to secure the diesel filter. The filter is needed to clean the air flow.
A hose and equipment can be attached to the outlet fitting.
Compressor Maintenance
Transformer or motor oil in the compressor must be changed periodically. It is advisable to change the gasoline filter approximately every six months. Replacing the filter is a routine maintenance that any car enthusiast can understand. All maintenance can be done yourself.
How to change oil
Inspect the motor. There should be a sealed tube coming out of the refrigerator compressor. Carefully cut off and drain the oil from the engine. Usually there is about a glass of it. However, if you purchased the compressor from a workshop, the oil has most likely already been drained. Using a syringe, you need to pump in new oil and take care of how to close the hole. It will be most convenient to glue the external thread with FUM tape and make a screw cap.
Compressor application
Mainly used for painting
- For painting with an airbrush. Airbrush allows you to draw fine details and apply artistic images.
- For painting auto parts using a spray gun
- For quick painting during repairs. To do this, you need to attach wheels to the compressor platform, like a vacuum cleaner. The accuracy of painting using a compressor is much higher; it is used in elite design interiors.