Basics of repair of blowers - vortex, rotary, causes of malfunctions

A very powerful blower that produces a good air flow that can easily blow out any dust from the computer system unit. Such high power is achieved by the optimal design of the installation, the use of a powerful and high-speed engine, and an energy-intensive battery from a screwdriver. A leaf blower can find a variety of uses at home and in your workshop.

Its big plus is its mobility, since everything works without a network and anywhere. The operating principle of the turbine is centrifugal.

Design Features

A garden leaf blower is a powerful fan or “vacuum cleaner in reverse.” The impeller rotates at high speed due to electric traction or a gasoline engine (a tool based on a lawn mower). The air is entrained by the impeller and comes out under great pressure, dispersing dust, leaves and other debris.

The tool consists of several elements:

• vacuum cleaner motor (you can use a fan or an electric motor);
• body with a comfortable handle;
• impeller;
• switch.

Trial

Turn it on. Very powerful pressure. Any dust from the system unit is blown out in no time!

The main merit here, of course, is the high-speed 150 W engine.

Spray gun or roller?

Many craftsmen who do their own renovations in their apartments use ordinary rollers. But hand painting has several disadvantages when compared to using a spray gun. For example, the smoothness and thinness of the coating that a special sprayer gives cannot be achieved using a roller.

But this is far from the only positive side of using a spray gun. When used correctly, the surface will be neat and smooth. This effect cannot be achieved when using a roller, which often leaves lint and other imperfections. This debris deposit, which is very difficult to get rid of, is often very noticeable and spoils the overall impression of the renovation.

In addition, do not forget that the spray gun makes it possible to apply paint not only thinly, evenly and accurately, but also as quickly as possible. For people who value their time, this is an important plus. You can also forget about the need to thoroughly clean the space around the surface being treated. When using a roller, situations often occur when paint drips onto the floor, remains on furniture, etc. The spray gun makes it possible to carry out the surface painting procedure much more accurately. However, especially valuable things and items that cannot be washed afterwards should be put away. During the use of the device, a cloud of paint particles often forms, which can settle not only on the surface being painted, but also beyond it. However, when using spray gun attachments, you can achieve excellent results, and the cleanup after painting work will be minimal.

Breakdowns of vortex blowers and their repairs

Vortex blowers can operate in compressor or vacuum mode. Their use in various fields is very wide, but they are especially popular in industry and for aeration systems. The design of such blowers is very well thought out, so the equipment can withstand even difficult operating conditions.

Breakdowns of vortex blowers and their repairs

The use of vortex blowers requires the purity of the processed gas and constant monitoring of the condition of the inlet filter. If the purification of the gas mixture is insufficient, then there is a risk of deterioration in the operational parameters of the equipment. The most common breakdowns:

• Insufficient pressure drop. This is possible when atmospheric air enters the system or when the impeller rotates in the wrong direction. Also, a similar problem occurs when the blade profile changes;
• Uncharacteristic noises. The reason for this may be bearing wear, lack of lubrication in the unit, or contamination of the muffler;
• The unit hums or stops. Most likely the cause is a defective impeller or bearing.

Regular maintenance and diagnostic inspections will help eliminate these problems. But you need to remember that even though the equipment is quite simple, its repair can only be entrusted to qualified craftsmen. Carrying out repairs by a non-specialist is fraught with permanent damage to the equipment and even poses a risk to the lives of users.

Assembly steps

Now that you have all the necessary parts, you can begin assembly. Be sure to follow the instructions. For more visual instructions, you can watch a video on how to make sandblasting with your own hands from a gas cylinder:

Prepare the tank: thoroughly clean it using special detergents to remove dirt and residue. You will need to make several holes in the workpiece, one on top, used to fill the balloon with sand

It is important that the hole matches the size of the pipe. The second is from the bottom, this is useful for connecting taps. Install the faucet as you see fit: by welding or by screwing it onto an adapter. A tee is attached to the tap

Next, you need to finish everything with a special tape for sealing. Now valves and tees are being installed.

To prevent the device from being bulky and having to be carried manually, you can design a special carrier for it. It can be easily made from various scraps and fittings.

Attach wheels to them and note that this structure must support the weight of the cylinder. You can also see how to make sandblasting with your own hands using drawings.

Finally, channels for transmitting consumables and air are attached to the device.

• A tube is attached to the tap located at the bottom of the cylinder.
• The 15 mm hoses are attached to the tee.
• A compressor is attached to the last hole at the tee.
• Finally, the sleeve with the gun is attached to the last hole.

If you want to understand the assembly process more thoroughly, you can watch a video on how to make sandblasting with your own hands.

What tools and materials will be needed

To make a garden vacuum cleaner with your own hands, you will need the following materials and tools:

• vacuum cleaner motor;
• electric motor;
• fan;
• drill with attachments;
• jigsaw;
• Bulgarian;
• construction hair dryer (or gas burner);
• screwdriver;
• self-tapping screws;
• glue gun;
• drill with ballerina drill bit;
• long bolts with nuts;
• PVC pipe for sewerage and water supply (larger and smaller diameter);
• universal glue;
• black paint;
• marker;
• ballpoint pen (without refill);
• canister or plastic;
• plexiglass;
• switch.

Scissors with protractor

When covering walls and ceilings with plastic panels, it is often necessary to cut the guides at an angle of 45°. If you do this incorrectly, there will be unsightly gaps that will ruin the whole job. To easily cut plastic at any angle and without unnecessary problems, these scissors with markings and guides will come in handy. We insert the profile, turn it at the desired angle, and cut it off. Ready!

Price: 721 rubles.

Buy

How to make a blower from a vacuum cleaner with your own hands

The most obvious way is to construct a garden leaf blower from a vacuum cleaner. It already has a motor, so all that remains is to make a body from PVC pipes, choosing a convenient length. First you need to disassemble the vacuum cleaner and remove the motor from it - this is the basis of the garden leaf blower. The next steps are:

1. Cut a PVC pipe for sewerage 35-40 cm long.
2. A motor will be installed in it. To do this, you need to make cuts with a grinder under the motor protrusions (vacuum cleaner brush holders).
3. You should get a groove like this.

4. Make 5 wooden circles, the diameter of which corresponds to the same size of the motor.
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5. Drill holes in them.
6. Attach to the vacuum cleaner motor using bolts.

7. It turns out this design.
8. Mark a hole in the pipe and insert the switch into it.

9. Stretch a wire from it to the vacuum cleaner motor.
10. Fix the vacuum cleaner motor in the housing.
11. The inside of the structure should look as shown in the photo.

12. You will need to put a rubber gasket on top.
13. You will get something like this.

The next step in constructing a garden blower from a vacuum cleaner is to make a handle and a switch. Plywood is used as a basis. It is necessary to draw an outline and cut out the part with a jigsaw, then sand it and screw on a fastening element from a fragment of a pipe. The instructions are:

1. Mark the desired height with a marker.
2. Cut with a grinder.
3. Mark the contours of the wooden blank and cut it out with a jigsaw (one pipe will yield 5 fragments).
4. Sand it with sandpaper.

5. Fasten both parts.

6. Fix on the surface of the body.

Now you need to make attachments for a garden blower from a vacuum cleaner:

1. To do this, the pipes are flattened by heating them on a burner.
2. Press with a wooden block.
3. The result is a product like this.
4. The part is attached to the body.
   Important! Before starting work, you need to carry out tests, check the tightness of the structure and the air direction.

Making a Powerful Blower

Cut the ring from the large pipe.

Place it on a sheet of plexiglass and trace it.

Using a ballerina type drill, cut out two circles from plexiglass. Just not the same diameter, 2 cm larger.

The end result is this kit for assembling the case.

We mark both round pieces and drill holes at distances from the edge of about 0.5 cm.

In one of the round pieces we drill a hole for the engine.

Cut a small piece of pipe. This will be the air intake.

We drill a hole under it in the second round piece.

Next, take a piece of PVC pipe 15-20 cm long and cut it on one side with a round nozzle to make a tight fit to the housing ring.

Apply it to the ring and circle it.

We make a hole in the ring for the pipe. First we drill with a round nozzle. And then we use a file to give it an oval shape, under the adjacent pipe.

Glue it with superglue. This will be the air outlet.

We paint all the parts.

The body is ready. Let's move on to making the impeller. To do this, cut out round pieces of smaller diameters from the canister.

We cut off the tube from the body of the ballpoint pen and glue it into the center of one circle with second-time glue.

In the second circle we make a hole for air intake.

The blades are made from PVC pipe. Cut rings of equal thickness.

Cut into semicircles.

The impeller assembly kit is ready.

But before we begin assembly, we will make a semicircular cut in each blade.

Glue the second circle on top.

Now we assemble the entire turbine together. Remove the protective layer from the plexiglass. We glue the air intake tube into one round piece.

On the other side we fasten the engine.

To put the impeller on the motor shaft, I used a cable braid of a suitable size.

I cut it to the required length and put on the impeller.

Next, we assemble the entire body together.

We fix it with long bolts and nuts.

To keep everything on the screwdriver battery, I made a stand like this and some wood.

Solder the wires to the switch and to the motor.

We attach the switch to the stand with glue.

The powerful blower is ready.

How does a sandblasting machine work?

There is a surefire remedy for surfaces contaminated with rust or paint - a sandblaster. It is universal and is used everywhere: both by auto mechanics and in the home workshop.

However, this machine is highly expensive and it is more expedient and smarter to make it at home, if possible.

Do-it-yourself sandblasting itself requires only a sufficiently powerful compressor, an electrical and crane system, as well as a tank in which the abrasive material is placed, that is, sand or its analogues. To successfully complete this task, you will need to strictly follow the instructions and diagrams.

To store sand, a relatively small container is required. It is quite possible to make sandblasting with your own hands, even from a used empty fire extinguisher. It is worth noting that the sandblasting machine is mainly controlled using a gun.

Other homemade tools

Most homemade tools for harvesting leaves are analogues of commercially produced devices, so below we will talk about the most popular and useful of them.

Bag loading attachment

This device can be made from various materials, because its main task is to constantly keep the bag open. The nozzle is a U-shaped box , the dimensions of which are 1–2 cm smaller than the size of the bag. When it is inserted into the bag, it forms a large window together with it, thanks to which the leaves can be raked directly into the lying bag.

If the nozzle is made in the form of a funnel , then to load the bag it will be enough to fill it with collected foliage, then lift it and install it vertically, due to which the entire mass of foliage will slide into the bag under its own weight.

Trailer for walk-behind tractor

This device will be useful when transporting collected leaves to the boundaries of the site or a disposal site , for example, a compost pit or a pyrolysis gas generator that turns leaf litter into a flammable gas. In addition, the trailer can also be used to transport a garden vacuum cleaner.

Wire rake

Unlike conventional rakes, this device causes much less damage to the grass surface , and also makes it easier to collect leaves in hard-to-reach places. They can be made from ordinary galvanized wire, using ready-made analogues as a basis.

Transport cloth

This is a piece of dense fabric, to which a comfortable handle is sewn at each corner. Such a canvas is used to move collected heaps over short distances, from where all the material will then be transported to the disposal site.

The optimal size depends on the number of workers - the larger the canvas, the more leaf litter you can drag at one time, but the more people will be required for this.

Therefore, in most cases, the length and width of such a device fit into no more than 2–3 m.

Net

This device is laid out in the place where leaves are collected and filled with a rake or blower, adding a pile of leaf litter. Then the rope is pulled, and the net covers all the collected material, so that when dragged to another place, the foliage will not fall out of it.

After reaching its destination, the rope is first loosened and then completely released, revealing the net and removing the collected material from it.

Rotary blower repair

Preliminary diagnostics are carried out by representatives of the technical service of service centers at the site of operation of the unit, using portable equipment. Cosmetic repairs and replacement of worn parts are carried out on site, and for major repairs the product is dismantled and transported to the main base, where in-depth diagnostics are carried out on stands.

Repair of rotary blowers is practically no different from similar devices for industrial use, but there are minor features.

For example:

1. Clogged filters, depressurization of the pipeline, slight wear of the rotor and internal surfaces of the housing;
2. The appearance of extraneous noise due to contact of the blades with the housing, which can occur if the rotor axis is misaligned or the bearing is damaged;
3. Incorrect alignment of the belts in the V-belt drive, wear or loose tension.

Rotary blower repair

Industrial units may have the following malfunctions:

1. Productivity does not match production load;
2. Factory defect that will appear when first turned on;
3. Parts have worn out due to long-term work without maintenance;
4. Poor quality maintenance or preventative repairs due to the negligence of the performers.

Therefore, only experienced repairmen from among the technical staff at the enterprise are allowed to carry out maintenance.

Such work is carried out by representatives of the service center only in cases where a warranty service agreement has been concluded, and if there is no such agreement, then all work is carried out by repair teams that exist at all large enterprises for these purposes.

With high-quality service, all faults and defects are eliminated at their early stages of development, so they do not have time to harm the product.

What types of blowers are there based on the operating principle of the engine?

Currently, the manufacturer produces two types of blowers: with an electric motor and with a gasoline motor.

In terms of environmental safety, of course, an electric blower is best suited. Unlike gasoline, it does not emit harmful substances into the atmosphere that are formed during fuel combustion. This device works in two modes - blowing and garden vacuum cleaner. Using the latter mode, you can easily clear the area of ​​the site from small debris, and the blowing mode will help get rid of foliage. This blower also has a shredder, which in turn helps clear the garden of larger branches. However, an electric garden leaf blower also has a very obvious drawback - it is tied to a power source and cannot work without electricity, which makes its use in large gardens problematic. In addition, this invention is not recommended for use at high humidity.

Better electric leaf blower

The petrol garden vacuum cleaner has gained much more popularity than its electric competitor. This is explained by the fact that its operation does not require electricity, and therefore it can be used even in the farthest corners of the garden and in industrial gardens, which sometimes spread over several tens or even hundreds of hectares. A gasoline leaf blower requires a small amount of gasoline to operate.

Important! This type of blower is also relatively lightweight - the average weight of such tools is about three to four kilograms. That is why even several hours of working with it will not cause severe fatigue. Gardeners also appreciate the speed of such garden vacuum cleaners. On average it is 53-55 meters per second.

Electric garden blower: main classification of units

Blower "Stihl"

Before purchasing such a unit, you should pay attention to the features of using such a tool:

• For small areas, a handheld blower is best. It is good because it has excellent maneuverability and is easy to work in gardens and alleys. This unit is small in size. Compactness prevents a person from getting too tired while working. In addition, the device is equipped with a comfortable handle and belt.
• A gasoline backpack blower will be good in areas remote from residential buildings and structures. It runs on gasoline and is therefore not tied to power supply. This unit is quite heavy. However, even a weak woman can wear and use it. This is explained by the fact that the garden vacuum cleaner has a special belt system. It is this that relieves a person from fatigue, as it evenly distributes the weight of the equipment. As a result, the gardener will not get tired even if he works for several hours.
• For industrial gardens, powerful cordless vacuum cleaners are best. They usually have wheels, which allow such units to be rolled around plantations. These fans have four wheels and one handle. Plus, they have wide nozzles that can clean out as much debris as possible. The blower-vacuum cleaner also has a shredder function; it processes even large branches well. At the same time, domestic developers have also thought out large containers for collecting garden waste, and also introduced sprayers.

How to make a blower from a trimmer with your own hands

A garden blower can be made not only from a vacuum cleaner, but also from a trimmer (a type of lawn mower). This is an attachment consisting of a housing in which the fan is installed. It is attached to the lawn mower bar and the engine is started. It is designed for cleaning garden paths and other surfaces.

You can purchase it or construct it yourself, for example, from a floor fan:

1. Disassemble the device.

2. Secure the motor to the plastic base.

3. Attach the rear protective grill with bolts.
4. Install the screw using a bolt (first make a hole according to src=”https://vdome.club/wp-content/uploads/2020/09/27-640×332.png” class=”aligncenter” width=”640″ height ="332″[/img]
5. Secure the front protective grille to the rim.
6. Connect to streamer. The result is such a device.

This garden leaf blower operates using a fan rather than a vacuum cleaner. But even this power is enough to clean garden paths. More detailed manufacturing instructions are shown in the video.

Air blower

From outdated models of vacuum cleaners you can make modern devices that can be used to inflate children's pools or, for example, mattresses. Most of the more modern models have not only an inlet, but also an outlet. In order to make an air blower, you will need to connect an additional hose to the outlet of the vacuum cleaner. The end result is a strong air stream.

Air blower

Of course, before using an old vacuum cleaner in this way, you should thoroughly clean the container in which the dust was collected. This can be explained by the fact that during the entire time you were cleaning the house, a huge amount of dust particles accumulated in the device’s container, which at first glance may not be noticeable. Also, cleaning the container will have a positive effect on the condition of the engine, because dust in small quantities constantly gets inside it.

A device such as an air blower can be used to clear paths of various types of debris. To do this, it is enough to install a special nozzle at the end of the hose, which will have a narrow hole.

Those with older home cleaning devices who have their own home workshop can use an air blower for a variety of purposes. With its help, you can easily blow away any remaining dust from the surface you are going to paint. Another application would be to collect dust from metals or wood. In such a situation, an air blower becomes indispensable for removing shavings, sawdust and other particles from the surfaces of furniture and other objects.

How to assemble your own electric leaf blower

Unfortunately, not each of us has sufficient financial resources to purchase any device we like. Do such people really have to constantly work with traditional hand tools, wasting time and effort on “Sisyphean labor”? Whatever the case! Cunning inventors have come up with a convenient way out of the situation, allowing them to create a “budget” model for almost “pennies.”

Various available parts are used. Even PC components!

The editors of Tehno.guru invite its readers to watch a video about creating a garden vacuum cleaner-leafer with your own hands in a few minutes. Very interesting and informative!

Repair of gasoline and electric blowers

Perhaps you were looking for repair of garden vacuum cleaners

Wind wind you are mighty

Cleaning up the area at the end of the season requires a lot of effort. Collecting fallen leaves using well-known tools, especially in large areas, takes a lot of time. A blower helps in this difficult task. A kind of rake and broom in one bottle easily copes with debris without coming into contact with branches. Like any piece of equipment, blowers break down. Blower repairs are due to lack of maintenance and improper operation.

The main malfunctions of blowers and possible causes are as follows. 1) Does not start - malfunction of ignition, piston, fuel supply. 2) Stalls - problems in the intake system. For electric ones: does not turn on/turns on intermittently - there is no power, the motor is faulty. Blower repairs are a rare problem. Most often it is associated with improper operation and lack of preservation of equipment.

If you mess with a car long enough, it will break down. "Schmidt's Law"

Equipment

Availability of equipment plays an important role in blower repair. This is the key to quick and accurate diagnostics, which also makes it possible to restore faulty components to a new condition. You reduce the cost of repairs without losing equipment life. Often, the use of improvised and homemade tools and lack of knowledge on their installation leads to injuries, not to mention breakdowns of expensive components

Blower design

The main element of a blower is the engine. Gasoline engines are equipped with a two-stroke engine that runs on a mixture of gasoline and oil in the appropriate proportions. It should be strictly observed and fuel should not be stored for a long time.

The mixture is formed in the carburetor and fed under the piston. Ignites under high pressure and burns. The gases drive the crankshaft. Electric motors are equipped with a synchronous motor consisting of a rotor, stator and brush assembly. It rotates by applying voltage to the brushes with a button that the user presses. An impeller is attached to the shaft, which creates an air flow in a given direction

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DIY blower repair

If you suddenly think or decide to repair the blower yourself, or with the help of your friends or neighbors, we advise you to think a few more times. In practice, the interest of users, an incorrect assessment of their knowledge and skills, and the desire to save money only leads to big problems and costs with all that entails. Sometimes even professionals work for a long time to find and fix problems. Without equipment, you will not always be able to diagnose equipment, remove and service a specific unit

We don't scare you

And we are not saying that you are absolutely powerless in this matter. We are just trying to protect you from even bigger problems that people create for themselves and we want to help you!

Blower brands serviced

We repair electric, battery-powered and gas-powered backpack and hand-held leaf blowers of all leading brands. If your manufacturer is not on this list, you can contact our managers by phone or using the form below

Request a call back and leave a request

Average cost of blower repairs

People ask us this question every day. And to be honest, it’s rarely worth talking about this in advance. The prices of leaf blowers fluctuate depending on its characteristics and manufacturer, the same goes for spare parts. Malfunctions and their causes are of a private nature. Design features, time and prices for installation of units differ. Therefore, talking about this is very ambiguous and requires an accurate assessment

To estimate the cost of repairs, it is necessary to carry out diagnostics!

Blower repair prices

Prices are for informational purposes only, excluding the cost of spare parts, and may vary up or down depending on the complexity of the saw design and the time spent on work. The cost of a comprehensive repair is lower due to the dismantling of associated components

Reviews

Vitaly Mikhailovich

Happy summer resident with working trimmer

When I came to the guys, I was very upset - I saw a huge amount of equipment waiting for repairs and was prepared to hear that I would have to wait at least a month for my turn, BUT after 2 days I received a completely working trimmer.

Stepan

Hard worker from the suburbs

When the renovation is perfect, there’s not much to say other than THANK YOU! for restoring life to our dear little pieces of iron

Valery Kuzmin

I have been repairing Husquarna equipment from the guys for several years now. They always listen to my wishes and do everything to make the client satisfied.

Shulga Vladimir

Repeatedly repaired various equipment at the service center. Oleo-mac lawnmower, makita chainsaw, max cut trimmer. I am completely satisfied with the service. Everything is fine, everything suits me. The technique still works today.

Mikhail Vinogradov

Hello. My name is Mikhail Vinogradov. We contacted the service center last year. We had problems with the operation of the gasoline cultivator. Not only did they repair our equipment efficiently and inexpensively, but they also gave us advice and recommendations on proper operation. This was important because... this is what helped a lot. We used the cultivator all summer and remembered the masters with kind words. The equipment now starts with half a turn. The friendly attitude was especially pleasant; they even helped us carry the equipment (unload and load it into the car) absolutely unselfishly. This year there was a need to repair a gasoline lawn mower. The question “where to do this?” didn’t even arise. And again we were pleasantly surprised by the politeness, willingness to help, advice and recommendations, but the main thing was the high professionalism and integrity of the craftsmen. The missing parts have been ordered and installed. Prices for parts and repairs are discussed with the client over the phone. Everyone would work like this! Thank you very much. We recommend everyone to come here. You will not regret it.

Alexander Novikov

client with working chainsaw

Repaired a chainsaw. Very qualified craftsmen, satisfied with the service. The saw has helped out more than once.

Blower operating modes

A standard leaf blower can operate in three modes: direct blower, garden vacuum and shredder.

The blower mode is so that the tool can collect fallen leaves and other small debris on the site into one pile. During operation of the tool, a large air flow occurs, which collects all unnecessary debris in one place. At the same time, the summer resident can control the air masses himself and thus concentrate the garbage in the place it needs. Most often, this mode is used in autumn for fallen leaves.

The second operating mode of such a tool is the garden vacuum cleaner mode.

The second operating mode of such a tool is the garden vacuum cleaner mode. This function is also available on all types of blowers. Its operation process is similar to that of a regular home vacuum cleaner. During operation, debris is swallowed and flows through a plastic pipe into a special garbage bag.

Some series also have a third mode - chopper. The principle of operation is similar to the second mode, however, before the garbage gets into the bag, it is finely chopped using special knives. As a result, shredded garden residues can be used as mulch for a variety of plants. However, not all blowers have this mode. To find out for sure, you should consult with a store employee.

Garden vacuum cleaner-leaf blower: how to choose the right one

Petrol blower

The choice of garden blower should be approached responsibly. Close attention needs to be paid to some parameters and aspects. Here are the main ones:

• Plot size. The most important aspect that you need to focus on when choosing a vacuum cleaner for the garden. For small areas (up to two hectares), manual units are well suited. However, if the garden area is more than two hundred acres, then it is recommended to purchase a gasoline vacuum cleaner. If the area of ​​the industrial garden is five or even ten hectares, then it is better to purchase a garden vacuum cleaner on wheels for your farm.
• The amount of work and complexity is the second aspect that you need to pay attention to when choosing this type of equipment. It is necessary to analyze what you need to do with this blower (collect garbage in one pile, in a bag, or even shred it).
• Mobility. If the technology is difficult to use, it will not bring any benefit.
• Parameters - weight and transportation.

Experts also advise paying attention to the manufacturer of the blower. Today, equipment is produced by many companies and factories. The ranking of the best brands looks like this:

• Hitachi,
• Husqvarna,
• Stihl,
• Bosch.

Don't forget to read the instructions before using it. After purchase, you need to contract with the seller for service and maintenance of the blower. This is required because DIY repairs will cost much more. And it won’t be possible to repair it everywhere. For example, not all teams even in large cities carry out repairs of vortex blowers.

Drafting

For example, we determined that a twin-shaft shredder with a low rotor speed is suitable for production tasks.

His project necessarily includes:

• engine selection by power;
• calculation of gear ratio and selection of factory model;
• determination of the diameter and length of the rotors (based on the size of the loading window);
• calculation of shafts for strength;
• selection of bearing supports.

To do this, you will need the textbook “Machine Parts” for universities. You will also have to look at GOSTs on threaded connections, reference books on gearboxes, bearings, couplings and other assembly units.

This must be taken into account when assigning groove dimensions.

After the calculations, it is necessary to layout the components on graph paper or in an editor such as AutoCAD, determine the dimensions of the body parts and the frame.

You need to approach this task responsibly so as not to miss anything. Sometimes the protruding head of an “unaccounted for” bolt leads to the fact that the car has to be rebuilt. After this, detailing is done - a drawing of each part separately.

How to use?

• The tube or hose is placed at one end as tightly as possible to the aquarium soil;
• The other end of such a device is lowered into a clean, deep container located significantly below the level of the aquarium;
• To start the process of pumping out liquid, it is necessary to create a vacuum in the tube, which occurs as a result of air being sucked out of the equipment cavity;
• As soon as the liquid enters the bucket to collect it, water with contaminants begins to flow out of the aquarium under the weight of its weight;
• After this procedure, the drained liquid is allowed to settle so that the contaminants settle at the bottom of the container. After this, such settled water is separated from the dirt and poured back into the aquarium.

DIY blower

You can save money and make a hand blower. If it is made correctly, then in operation it will be little inferior to purchased ones. To assemble it, you need to take an unnecessary compressor from a vacuum cleaner, a plastic pipe, a bag, a motor and filters for blowers. You will also need a handle. By putting all these parts together, you get an excellent device that has the same functions as a garden vacuum cleaner from the store.

In order for the tool to still be of high quality and work for a long time, and also not to have to repair the blower soon, you should not rush to assemble it. Otherwise, the unit will quickly fail and all the work will have to be redone. But there is always the option of buying equipment in a store; the main thing is to decide on the model.

Blower

Each summer resident is faced with a large amount of garbage on his site. There is especially a lot of it in the fall, when it’s time for leaves to fall, and also in the spring, when it is necessary to remove the garbage that has accumulated over several months.

The most acute problem with cleaning arises among those who have a large number of fruit trees and berry gardens in their dacha. It’s good to enjoy ripe and juicy fruits, but few people enjoy removing their leaves in the autumn and spring months. Recently, modern equipment has appeared in specialized stores to help summer residents with gardening work. Among such equipment there are also blowers. What pleases summer residents most is cleaning leaves with a leaf blower.

A leaf blower is a tool that performs the same function as a regular rake, broom or broom. Using air, she blows out the leaves and ultimately clears the plantations of fallen leaves and even small twigs. Some modifications of such tools also have the function of sucking debris into special bags.