DIY kärcher hose repair

In detail: do-it-yourself repair of a karcher hose from a real master for the site my.housecope.com.

Karcher washing equipment is popular in the responsible market. Such devices are widely used for domestic purposes. Cleaning walls, doors of houses, garden paths, washing cars, windows, workshops and garages - the strong pressure of water supplied by the car can effectively cope with the removal of dirt and dust. Regular use of the sink leads to wear and tear on the structural elements.

Often, equipment owners are faced with the need to repair or replace the Karcher high-pressure hose (RVD). After studying the instructions below in detail, you can easily troubleshoot yourself. In order to save time and effort, you can turn to professionals for help. Its services are offered by the company "Lenhydravlika", which is located at the address: St. Petersburg, st. Chugunnaya, 20. Specialists in the shortest possible time will carry out the whole range of works.

The Karcher high-pressure hose is one of the basic elements of the hydraulic system of washing equipment. The flexible pipeline is designed to supply water under pressure from the built-in pump to the nozzle of the device. In order for the hoses to easily withstand a significant load, reliable, wear-resistant materials are used for their production. The design of the RVD consists of two layers of polymer - it can be either rubber or synthetic rubber. There is a metal braid between the inner and outer parts of the pipeline, which gives the product additional strength. The wire winding technique is of two types, which became the basis for the classification of pressure hoses:

Video (click to play).

- Braiding. The braid is applied at an angle, each next layer is crossed with the turns of the previous one. Such high pressure hoses are designed for a significant level of pressure.
- Coiling. Layers of wire in even rows. In terms of endurance, high pressure hoses of this type are inferior to the previous type of high pressure hose.

The market offers a wide range of hoses, differing in rubber thickness, number of braiding layers, diameter, length and permissible load - the parameters depend on the area of application of the product. When choosing high-pressure pipes for Karcher, you should follow the manufacturer's recommendations.

Malfunctions of Karcher high-pressure washers are often associated with damage to the flexible pipe. The hose wears out, wipes, cracks form on it - as a result, a leak occurs. It should be understood that when exposed to significant pressure, the risk of tubing deterioration increases. Another common malfunction is a violation of the integrity of fittings in Karcher sinks. Fasteners lose their tightness or corrode. The causes of damage to the RVD are of the following types:

- Manufacturing defects. The use of outdated equipment, non-compliance with technology, lack of product quality control are the main reasons why there are sleeves with various defects on sale.
- Inconsistency of parameters. An incorrectly sized high pressure hose will quickly fail.
- Intensive use. With prolonged use, under the influence of a constant pressure of the liquid, the hose loses its initial properties.

The service life of the hose depends both on the quality of the pipeline itself and on the reliability of the fasteners. If you notice a fluid leak or a malfunction in the washer, you should clearly identify the place where the fitting or hose is damaged. If you have problems at the diagnostic stage, contact the professionals.The experts of the Lenhydravlika company will be happy to assist in troubleshooting Karcher washing equipment.

It is not difficult to qualitatively repair the hose, ensuring stable and long-term operation of the sink, the main thing is to follow the recommendations exactly, to perform all actions carefully and carefully. Regardless of the nature of the damage, the RVD should be removed initially. The hoses are attached to the equipment with threads or quick couplings, depending on the machine model.

Further actions are as follows:

1. After dismantling the tube, cut off the damaged part to the point where there is no deformation.
2. If the sleeve is damaged at the end or the fastener breaks, select a similar fitting and crimp it with a vise.

3. When a cut has formed along the length of the hose, a connector of a given diameter is used for repair, as well as two clamps. They help to seal the sleeve joints. Similar work is carried out if necessary to lengthen the tube or connect two hoses.

What if the cracks run along the entire sleeve? In such a situation, it is rational to purchase and install a new tube. The Lenhydravlika company, a domestic manufacturer of high pressure hose and end fittings for Karcher washing equipment, will offer a quality alternative. Our experts know exactly how to repair a hose or find a worthy replacement for it. Clients expect affordable prices for work, prompt execution of orders, a responsible approach to solving tasks.

If the hose is torn off the flange, then the damaged section of the hose must be cut evenly, to the point where there are no extensions, cracks and an undamaged cord.

Next, purchase the necessary flange and install it - fortunately, a large number of them are sold in auto stores and there is also a choice. The flange is inserted into the hose and simply crimps well with the help of the vise jaw and hammer blows from the third top side.

If the damage is somewhere along the length of the hose, for example, a cut, rupture or something else, then we do it in the same way as in the first case, cut the hose and cut it to a whole, but here the connector of the required diameter and a pair of clamps will help - only buy clamps not cheap, but good ones like those in the photo!

Repairing a high pressure hose on a Karcher is an almost hopeless business. If it is damaged in a straight section, crushed, chopped, and so on, then finding a double-sided Christmas tree pipe and squeezing it at home on a hose is very problematic. You can do without buying a new (very expensive) hose only if it starts to rip off the metal outlet. That is, the thread on the union coupling has been torn off, and I don’t want to buy a new hose. Russian artisans do this:

A section of a rectangular pipe, in my opinion, 45x25, is taken, the “STAPLE” grip is carefully and thoughtfully cut out of it. With slots for the hose itself and for the branch pipe. I think it will be clearer in the photo. I repeat - if you don't want to buy a new hose at all.

The design of the product, of course, is not a museum, but it works properly. The connection may be slightly undermining, but this is not critical.

The tourist club Korbit has an equipment base. There is a well and a Karcher pressure washer. For three years this whole system worked without interruptions. And so, Karcher's hose broke. Many questions immediately arose. Where can I buy a new hose? Where to run if you need Karcher urgently?

We have figured it out and share our experience! First, the Karcher hose is a high pressure hose and can be repaired. Secondly, the repair of Karcher high-pressure hoses can be done by hand, or it can be done in a specialized organization.

Do-it-yourself Karcher hose repair technology is very simple. First, we cut the hose along the edges of the gap. Then we make the cuts even - either with special scissors, or with a machine, or with a cutting tool.

After that, we go to a special store for the fitting (connecting tube along the inner diameter of the hose) and special power clamps. Ideally, place a pair of clamps on each side. Attention, simple clamps will not work!

This DIY hose repair has disadvantages. If the hose is used in the washing area, the repair unit (clamps) will constantly cling to something, this is inconvenient.

Another disadvantage. If you do not have a fitting and a power clamp in your garage (in your warehouse), you still waste time looking for and buying a fitting of the required diameter and clamps.

But there are also pluses. Such a repair of Karcher high pressure hoses will not be expensive. Especially if you need to lengthen the hose or make several repair connections.

If you are short on free time, it is worth contacting the professionals. Pros . The Karcher hose will be repaired on site in 10 minutes. They are repaired carefully, the repair unit will not interfere with the work with the sink. They are repaired using professional equipment and reliably.

Minuses . The cost of repairs is 500-800 rubles for each node. That is, with a market value of a non-original, but acceptable in quality, Karcher hose of 2000-2500 rubles (autumn 2018), it makes sense to make repairs if you have a relatively new hose and no more than 2 damages. In other cases, it is worth thinking about a new hose.

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We have compiled a list of organizations in large cities of the Central Federal District, in which you can repair the Karcher hose:

If your city is not listed, please try clicking here.

At least in a nutshell, but we must talk about the reasons for the repair. In our case, the reason is this - the sink itself "shudders" when it starts. The hose coming from the sink was gradually rubbing against a sharp corner. But there may be other reasons - poor-quality hose material, inconsistency between the working pressure of the hose and the pressure of the sink, obsolescence of the hose, and others. Of course, all these reasons must be eliminated.

That's all! Keep your tool in good working order, keep having fun with your hands! Have a good day!

P.S. If you have up-to-date information or want to add an organization, write about it in the comments.

NB! Dear visitors! Please note! Only articles where the author has declared the tourist club "Korbita" are the position of the leadership of the tourist club "Korbita" on the topics expressed in the article at the time of publication.

I am a crocodile, I am a crocodile, and I will be a crocodile!

Sibgidravlika, OOO, repair company
[COLOR = rgb (164, 124, 39)] Areas of activity of the organization: [/ COLOR]
Repair of special vehicles, Rubber products, Industrial equipment repair, Spare parts for agricultural machinery
Knitted, 52/2

just take the hose with you, they will make a new hose on the old fittings.
10 meters about 1500 rubles.
oops, plastic.
By the way, they turned the fitting on the model themselves.

The design of the product, of course, is not a museum, but it works properly. The connection may be slightly undermining, but this is not critical.

On karcher sinks, depending on the year of manufacture, there were two high pressure hose attachments, this is the hose that goes from the washer to the washing gun.

The threaded connection is used on later sinks and is replaced by a quick-release connection.
To unscrew the hose from the sink, if you have just used the sink, release the water pressure in the hose by pressing the gun button, and unscrew the hose from the sink counterclockwise.
Often the original threads are plastic inside and this caused problems with prolonged use, high pressure hoses that are sold in our store have brass threads. link to hoses.

The quick disconnect displaces the threaded connection.

If you have just used the washer, pull the trigger on the spray gun and release the water pressure inside the hose.
Grasp the hose at the entrance to the sink and press with your finger or with your other hand on the plastic black circle towards the sink, pull the hose out in the direction of the sink.

It is advisable to periodically, once or twice a season, disconnect the hose from the sink and from the gun, clean and lubricate the thread or quick connector.

DIY karcher high pressure hose repair. Car washes and car services installation, repair, service of cleaning equipment, devices, hoses

Karcher sinks are different in themselves, different outlet pressure, different sleeves (hoses).

A hose burst can be anywhere, the most “unpleasant” one can be considered a rush somewhere in the middle, such a repair is difficult.

As an option for the “Karcher” household sink, use the “herringbone” fitting

And squeeze it with clamps, but it is better to take steel reinforced clamps.

We buy such a flat head screw for a screwdriver.

We drill a hole in it to the full depth, as a result we have a tube with an external (external) thread.

You can buy such bushings with an internal thread for the bolt,

You can simply cut threads in steel pipes.

The internal thread of the sleeve matches the external thread of the bolt (the same pitch).

We cut off the problem area.

Insert the sleeves into the hose, tightly.

We take a thick-walled copper pipe and cut it to length, a little more than the length of the bolt.

We twist the bolt (drilled) into one sleeve, then we twist the second part of the hose with the sleeve.

We push the copper pipe over the joint and clamp it a little in a vice.

If someone does not understand, here is the video, only in the video is a person repairing a sleeve from scrap materials.

Notice how he drills the bolt, the drill is clamped in the vice, and the bolt is in the screwdriver.

Instead of a vibration cutter, you can use a grinder.

At the finish we get a "picture", the thread does not allow the hose to break off, and the outer tube does not allow the sleeve to swell.

In my opinion, the whole “genius” of such a solution is in the simplicity of execution, and the tools are used ordinary (many have them) drill, screwdriver, tap, grinder.

Repair of high pressure hoses - means pressing a broken high-pressure hose at the ends (pressing in a new end fitting), pressing the hose at a rupture approximately “in the middle” - inserting a special repair fitting and then pressing it in, pressing the fitting for the required high-pressure apparatus.

Our service center for high pressure hoses also offers you such services as:

pressing high pressure hoses of the required length (from 1 meter or more)
pressing with the required fitting (for example: М22х1.5 nut; 3/8 ″ nut or union; 1/2 ″ nut or union; 1/4 ″ nut or union - check the availability of the required fitting)
production of a high-pressure hose for the most popular high-pressure washers: Karcher (Karcher) with a fitting 8 mm (new mount for Karcher mini-washers since 2008), 10 mm, 11 mm and a union nut M22x1.5
pressing the high pressure hose for connecting the ceiling consoles (rods) both from the apparatus to the console, and the hose from the console to the high pressure gun
production of hoses for drawing high pressure through the washing box (car wash)

Please note that we can offer you a replacement for the original plastic hose (as a rule, household mini-washers are completed) with a more durable and professional high-pressure hose. If you just want to repair the old hose - contact us. Also, our hoses are made or repaired from various high pressure washers: in addition to Karcher, also Kranzle, Portotecnica, Faip, Bosch, Lavor, IPC, Poseidon, WAP, Alto, etc.

If you have a household high-pressure apparatus that needs to be repaired, and we do not have the required fitting (household car washes), we offer the following repair option: we PRESS your original high-pressure hose, that is, we remove the tips from the original hose, and then press it into a new high-pressure hose of the required length, the cost of such a repair service varies depending on the complexity of the hose.
More and more high-pressure apparatuses are imported into our country, and as a rule, there is a problem with the service center. But don't worry - we will help you: we will repair your high pressure hose or extend it to a longer length.
Also, high-pressure hoses are used when installing (broaching) high-pressure lines at a future or already operating car wash of the required length for their subsequent installation on walls and ceilings. etc. In this embodiment, the high-pressure hose is used as an analogue of HP pipes. They are connected from the device to a pistol, console, or simply distribute high water pressure. We can also repair an already installed high pressure hose.

Popular with private house owners. With this compact device, you can clean virtually any surface from dirt. In addition, the use of a mini-washer allows you to reduce water consumption. Therefore, such devices are often used in car washes and cleaning enterprises.

It is quite logical that continuous operation of the mini-washer can lead to equipment failure. The most common problem is the breakage of the high pressure hose that supplies the water under pressure. Some common problems are discussed below.

Diagnostics, maintenance (MOT), minor repairs are 2-3 days.
Repair average 5-7 days
Complex repair with a complete bulkhead 7-15 days.

Bulkhead repair - 30 days.
Maintenance (MOT) of all types of equipment - 20 days.
All adjustments: carburetors, cables, belt and chain drives - 10 days.

Departure for diagnostics, maintenance and minor repairs or equipment collection is possible. The cost is calculated based on the amount of work and distance.

Quite often, the cause of hose breakage lies in damage to the flange, that is, the fastener that connects the hose to the mini-sink. In this case, it is necessary to purchase a flange that matches its parameters and install it in the base of the hose. The installation procedure may require the use of pliers and a hammer to adjust the fastener to the diameter of the hose.

Karcher hoses are often subjected to mechanical stress, which leads to the appearance of holes, tears and cuts in them. It would seem that in any other case, an overlay glued at the place where the gap appears would be an ideal solution to this problem.

However, the pressure inside such a hose is so great that no adhesive will be able to hold the patch. The ideal option in this case is to replace this part. If, for one reason or another, the spare hose cannot be obtained, you can resort to using clamps and a connector.

A connector is an elongated metal one-piece piece that is attached where the break occurs.To hold it, clamps are used that "tighten" the connector, preventing it from moving.

I am a crocodile, I am a crocodile, and I will be a crocodile!

just take the hose with you, they will make a new hose on the old fittings.
10 meters about 1500 rubles.
oops, plastic.
By the way, they turned the fitting on the model themselves.

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Karcher car wash repair (replacement of the connector tube)

In this article, we will consider how to make repairs to a car wash with your own hands and how to get to the outlet pipe at the Körcher sink and replace it.

First you need to unscrew the screws (for a Phillips screwdriver) that are located on top of the handle

Then we unscrew the screws securing the back cover

Now we put the sink and remove the top cover

Access to the internal components is opened and we can already remove the connector

Removing the metal bracket

We lift the pump and take out the tube. We give a new spare part and install it in the reverse order. Carefully remove the rubber seal ring and move it to a new connector. Next, put it back and insert the fixing bracket.

Good day! We gave away the STIHL RE 108 sink for nothing. It is necessary to change the high-pressure hose. I can't unscrew the nut near the pump with a gas wrench ((I'm afraid I won't tear it off.

New information with articles and detailed photos has been added to the file on repair kits for Makita sinks.
Added kits for models HW110 / 130/131/140/151

Complete file with repair kits for Makita sinks is attached.
High pressure water purifiers (new) .ppt

Cleaning the garage, warehouse, car cleaning, and even your own summer cottage, becomes simple and easy if you purchase special equipment for this - a pressure washer. It is difficult to imagine a car service without a car wash; it can also be used to wash concrete mixers, pipes and other equipment well. Everyone knows very well how convenient pressure washers are for farmers - cleaning of stables and agricultural machinery turns into a quick procedure that even a beginner can master.

The cost of the device varies from 4,000 to 20,000 rubles, depending on the material used in the manufacture of the body and other important parts of the tool. Experts note the excellent quality of brass products, the pistons of which are made of cermet. The correct choice of a pressure washer is not complete without due attention directed to the supplied attachments, it is good if the following components are included:

cutters designed for working with dirt;
sandblasting and suction tip;
a variety of brushes;
corner nozzles.

For a high pressure washer to show a long service life, use a water filter, which protects the inner structure of the hoses from contaminated fluid flow. At the end of each work, unused water must be drained from the equipment and pressure must be relieved.

Such preventive measures will save the equipment from sudden breakdown, but this does not mean at all that a situation will not come when a full repair of the device is required. You can do it yourself, for this you just need to know some of the subtleties of modifying the instance.

The main malfunction that can manifest itself after several years of active operation of the equipment is the bearing, which serves as a support for the swash plate pressing on the valve.

How does a breakdown manifest itself in Karcher:

The pressure washer runs jerkily, the engine regularly refuses to start, and a knock is heard from inside the structure.
The engine does not work at all, hums very much and heats up, literally plows with heat.

In this case, do-it-yourself Karcher sink bearing repair is the following sequence of manipulations:

Remove the hose with the gun.
Carefully disassemble the housing base, take out the electric motor equipped with the cylinder head.
Unscrew 6 self-tapping screws from the electric motor, the caps of which are made in the form of stars.
Open the box where the breaker is located and dispose of the capacitor along with the 2 power terminals coming from the breaker. Put the spring in a secluded place, if you lose it, it will be almost impossible to find the exact same part in stores.
Using a vertical stand, fix it firmly to the floor.
Place the pressure washer on this support with the electric motor pointing downwards.
Unscrew the 4 screws carefully by 13.
Oil will start to spill from the equipment, be careful.
Drain the oil into a container and set aside the rubber seal.
Inspect the condition of the clip with balls.
Armed with a screwdriver that allows you to remove the sprocket head mounts, remove the center bolt. To do this, clamp the shaft on the other side using a gas wrench.
Replace the bearing that is now visible.
The assembly of the equipment is carried out in the reverse order.
Do not forget to add new oil to the inside of the Karcher pressure washer.

Video instructions for eliminating possible breakdowns of Karcher equipment can be viewed below:

Before determining the method of how to repair the sink with your own hands, you need to determine the exact cause of the breakdown. The list of main faults includes:

Reducing the pressure supply. In this case, there can be no question of any performance, the time of the procedure immediately increases. Repair consists in eliminating damage to the oil seals. Why do the oil seals break? Long-term use and low-quality impurities, substances in the water used spoil and quickly wear out the material. Nothing can be done here, except how to replace the oil seals with your own hands.
One of the valves is defective. It is unlikely that you will be able to do it yourself, repair is most likely impossible without diagnostics with special equipment in the service center.

So that you do not have to face the listed malfunctions in the operation of the Shtil and Champion sinks, you should adhere to important rules and requirements:

Pay attention to the quality of the water used, the liquid must not be contaminated.
Repair of the pressure washer is not necessary if you make it a rule to carry out regular preventive maintenance of the product.
Pay attention to proper voltage and change oil on time

Do-it-yourself sink repair is, of course, a useful and developmental business, but it's better to never face this need. The correct choice of a high-quality installation will help to avoid unexpected and premature breakdowns. On this issue, experts give several practical recommendations:

"Champion" will appeal to those who appreciate the reliability and ease of use of technology.
"Calm" is a surprisingly compact high-pressure washer, no less durable than the first instance.
"Hooter" is universal, it makes it possible to use it in different jobs, but experienced clients already know that the Chinese "Hooter" often requires repair with their own hands.

Finally, it is worth noting that Interskol is highly productive, but despite this, it costs moderately, which is very pleasing for people who are strapped for money or do not want to spend a lot on a pressure washer.

If the hose is torn off the flange, then the damaged section of the hose must be cut evenly, to the point where there are no extensions, cracks and an undamaged cord.

Next, purchase the necessary flange and install it - fortunately, a large number of them are sold in auto stores, and there is also a choice. The flange is inserted into the hose and simply crimps well with the help of the vise jaw and hammer blows from the third top side.

If the damage is somewhere along the length of the hose, for example, a cut, rupture or something else, then we do it in the same way as in the first case, cut the hose and cut it to a whole, but here the connector of the required diameter and a pair of clamps will help - Only buy clamps not cheap, but good ones like those in the photo!

It is very doubtful to repair Karcher in the middle with “fir-trees”. What clamps hold 140 eyes? And more? I have not seen such.

Threaded connection only. Swage nipple and dad-mom.

All these clamps fly off like birds. - 3 years ago

In a vice - do not squeeze. And a hammer won't help. Everything will be clumsy and uneven. That is, it’s unsafe.

The design of the product, of course, is not a museum, but it works properly. The connection may be slightly undermining, but this is not critical.

Do-it-yourself "Karcher" repair. Do-it-yourself repair of a high-pressure hose, high-pressure car washes, mini-washers, foam nozzle, Karcher pump

Regular use of the pressure washer requires high-quality service of the device in the service center. In order to save money, many users make repairs to "Karcher" with their own hands. It is not recommended to carry out self-cleaning and replacement of parts before the end of the warranty period, which will affect the refusal of further service.

For trouble-free operation of the device, regular replacement of the oil, seals and the cuff on the pump (high pressure pump) is required. In case of interruptions in water pressure or improper storage / use of the device, an urgent DIY repair of the "Karcher" may be required. What parts are failing?

Pump, motor and pressure sensor. Electrical part. Nozzle, hose and gun.

The choice of household mini-washers eliminates the emergence of difficulties in care, but different models have their own characteristics, which must be found out from the seller in advance. For example, a car wash nozzle with a lamellar structure will provide high-quality operation with regular cleaning with a toothpick. Otherwise, the ingress of small particles will cause the unit to stop working.

When purchasing a product, you should check the availability of the nearest service centers and the warranty period. If such questions are ignored, the breakdown of the machine will lead to unnecessary problems. If you decide to carry out the repair of "Karcher" with your own hands, the right step is to study the instructions in detail.

According to the manufacturer and car wash workers, the main causes of device breakdown are poor water quality and lack of service. To increase the service life of the unit, it is required to comply with the basic requirements:

Install a filtering device for coarse and fine water purification at the inlet to the AED. Check the flow of the required volume of liquid in accordance with the technical parameters of the device.For example, if the flow rate is 15 l / min, and the water supply system allows you to get 13 l, after 2 months you may need to immediately repair the "Karcher" with your own hands (or in a service center). Water piping should be 3/4 in. Per unit. Factory nozzles and accessories are subject to self-replacement.

With regular preventive maintenance, it is possible to exclude the occurrence of unforeseen circumstances that will entail the replacement of expensive parts.

Check the condition and regularly change the oil in the pump plunger drive device. According to the manufacturer, the first oil change should be carried out after 50 hours of using the device, the subsequent service - after 350-550 hours. With an average flow rate of the washing area, it is sufficient to carry out the treatment once every 3 months. Monitoring the condition of the pump for a good fluid flow, external application of oil, as well as minor repairs of the Karcher car wash with your own hands (changing filters, tightening the bolts) will extend the life of the device. For AHU with heating, boiler prophylaxis is mandatory - cleaning the fuel filter (removing scale on the inner walls of the heat exchanger and external deposits).

Repair is required if there is a decrease in pump performance and a decrease in operating pressure. This is caused by fluid leaking from the plunger seals. The oil seals are worn out naturally or when exposed to abrasive elements. Under high pressure, small scratches will affect fluid seepage.

The first signal of a malfunction is a small puddle formed in the place where the hose runs. To resolve the issue, you can make a simple but painstaking repair of the Karcher car wash with your own hands. It is enough to change the oil seals (seals). It will be more difficult to install a new actuator, housing elements, seals, etc.

The suction channel is formed by housing elements that place a flat filter between them. The efficiency of the device depends on its state. The formation of defects in the adhesion of the surfaces of body parts leads to a decrease in the main characteristics of the device. With a low suction power while working with a hose and nozzles, repairing a Karcher high pressure washer with your own hands requires the preparation of a soft material to clean all surfaces and edges of the body parts. Damaged elements must be replaced.

If the device is equipped with the Total Stop system (shutdown of the pumping system in the absence of pressure on the trigger of the gun), leaks will lead to inadvertent activation - the automatic device perceives the pressure drop as a "start" command, the device rattles.

The decrease in performance or the shutdown of the AED is affected by the wear of the bypass or bypass valve, the rubber seal (ring) of the pressure sensor and the failure of the hose. This is accompanied by a low level of gun pressure, a decrease in the density and washing characteristics of the jet.

If the device does not maintain the specified pressure level, the pump is intermittently operating and the water is supplied in fragments, repairing the Karcher high pressure washer with your own hands will not be particularly difficult. It is enough to unscrew the bolts with a screwdriver and remove the housing, take out the motor with the pump and separate the motor from it. The pump must be directed upwards or oil will leak from the piston drive.

The valves are removed from the piston (the use of sharp objects is excluded, which can damage the surface), the pump is disassembled into 2 parts. The valves are removed again.

This is how the reason for the failure of the device is found out. This could be scale build-up or blockage. All parts inside the pump are cleaned and wiped with felt. Then the structure is assembled in reverse order.

Do-it-yourself repair of a high-pressure "Karcher" hose consists in crimping the damaged element at the ends or along the entire length.If the sleeve is torn off the flange, the unusable part should be cut straight to the area where there are no deformations. The required flange is selected and placed on the hose. The first one needs to be inserted into the second and squeezed in a vice. Hammer blows are applied from above.

If a cut is formed along the length of the sleeve, the same work is done. The hose is cut and removed to an intact area. A connector of a given diameter and two clamps are inserted. They are put on the hose, a connector is inserted, and tightly crimped with clamps. If cracks form along the entire length of the sleeve, repairing the Karcher high-pressure hose with your own hands is impossible. A complete replacement of the product is required - it is better to entrust this to the masters of the service center.

If the foam nozzle stops producing thick foam, is used for a long time or is not rinsed with clean water after use, the roller mesh becomes clogged with dried "chemistry".

To clean the foam tablet, a number of operations must be performed:

Detach the tank from the foam lance main unit. The arrow marks the location of the pin holding the plastic tablet tip to the brass element. The pin should be knocked out. If you decide to repair the Karcher foam nozzle with your own hands, you can use an awl or a thin screwdriver. After removing the plastic tip, you will see two petals forming a foam spray angle. The tip with them must be unscrewed. In the inner part of the removed nozzle, steel threads will be visible, taking a rounded shape (in the form of a tablet). They should be removed with an awl. Cleaning of the hardened "chemistry" in the nozzle is carried out using a needle. The assembly of the product is carried out in the reverse order.

Video (click to play).

Do-it-yourself repair of the "Karcher" nozzle correctly makes it possible to extend the life of the device and reduce the cost of its maintenance.

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