In order for your sink to serve you much longer without breakdowns, we advise you to adhere to the following operating rules:
VIDEO
Today, the market for car maintenance products has the widest selection of high-pressure washers, which differ in their functionality, quality and, of course, cost. From the whole variety of manufacturers of such devices, we can distinguish the following, in our opinion, the most worthy and high-quality ones:
"Champion" - is distinguished by reliability and ease of use;
Karcher is a high-quality and reliable device, excellent and well-established service anywhere in major cities;
"Calm" - compact and reliable sinks;
"Hooter" - a universal high-pressure washer, can be successfully used not only for cars, but also for homework;
"Interskol" - the unit shows good performance and affordability.
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Do-it-yourself high-pressure washing hose crimping without special crimping tools. (well, almost without 🙂)
Look at Yegorov's lawyer collar
but did not try to compress with a simple clamp
Thanks for the advice - the clamp turned out to be a very interesting thing. I would try them, but I didn’t know about the existence of such a device. I'm thinking of doing one now - it looks like it will be a very good help. Thanks!
No, I haven't. Simple clamps twisting even in two fly off literally after 10 minutes of work, wire puffs (I hung them a few and tightened them in a row) a little longer. This method made it possible to use a really thick nail as a crimp - it works without problems. (very tight and holds up very well)
=Repair of high pressure hoses=
Video Do it yourself Repair high pressure hoses channel Petr Zhurba
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 that the machine supplies effectively copes with the removal of dirt and dust. Regular use of the sink leads to wear of structural elements.
Often, equipment owners are faced with the need to repair or replace the Karcher high pressure hose (HPR). Having studied in detail the instructions below, you can easily troubleshoot yourself. In order to save time and effort, you can seek help from professionals. The company "Lengidravlika" offers its services, which is located at the address: St. Petersburg, st. Cast iron, d. 20. Specialists in the shortest possible time will produce the entire 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. To ensure that the hoses can easily withstand a significant load, reliable, wear-resistant materials are used for their production. The design of the high pressure hose consists of two layers of polymer - it can be either rubber or synthetic rubber. Between the inner and outer parts of the pipeline there is a metal braid, which gives the product additional strength. The wire winding technique is of two types, which has become the basis for the classification of pressure hoses:
- Braided. 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.
- Winding. Layers of wire are superimposed in even rows. In terms of endurance, high-pressure hoses of this type are inferior to the previous type of high-pressure hoses.
The market offers a wide range of hoses that differ in rubber thickness, number of braided layers, diameter, length and load capacity - the parameters depend on the area of application of the products. When choosing high-pressure pipes for Karcher, you should be guided by the manufacturer's recommendations.
Failures in the operation of Karcher high pressure washers are often associated with damage to the flexible piping. The hose wears out, rubs, cracks form on it - as a result, a leak occurs. It should be understood that under the influence of significant pressure, the risk of damage to the tubes increases. Another common malfunction is a violation of the integrity of the fittings in Karcher sinks. Fasteners lose their tightness or are affected by corrosion. The causes of damage to the RVD are of the following types:
- Manufacturing defects. The use of outdated equipment, non-compliance with technologies, lack of product quality control are the main reasons why sleeves with various defects are found on sale.
— Parameter mismatch. An incorrectly selected high-pressure hose quickly fails.
— Intensive operation. With prolonged use, under the influence of a constant pressure of liquid, the hose loses its initial properties.
The service life of the high pressure 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 operation of the washer, you should clearly determine the place where the fitting or hose is damaged. If you have problems at the diagnostic stage, contact the professionals.Masters of the Lengidravlika 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 strictly follow the recommendations, 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 using a thread or a quick coupling - this depends on the model of the machine.
The next steps look like this:
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 is broken, select a similar fitting and crimp it with a vice.
3. When a cut has formed along the length of the high pressure hose, a connector of a given diameter is used for repair, as well as two clamps. They help to seal the joints of the sleeve. Similar work is carried out if it is necessary to lengthen the tube or connect two hoses.
What if the cracks go along the entire sleeve? In such a situation, it is rational to purchase and install a new tube. The Lengidravlika company, a domestic manufacturer of high pressure hoses and end fittings for Karcher washing equipment, will offer a quality alternative. Our specialists 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.
Karcher high pressure hose repair. Karcher high pressure hose repair: how to do it yourself High pressure hose repair - implies pressing a torn high-pressure hose at the ends (pressing in a new end fitting), pressing the hose at a break approximately “in the middle” - inserting a special repair fitting and its subsequent pressing, 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: M22x1.5 nut; 3/8″ nut or fitting; 1/2″ nut or fitting; 1/4″ nut or fitting - check the availability of the fitting you need)
production of a high-pressure hose for the most popular high-pressure cleaners: Karcher (Karcher) with an 8 mm fitting (a new mount for Karcher mini-washers since 2008), 10 mm, 11 mm and a M22x1.5 union nut
pressing a high-pressure hose for connecting ceiling consoles (rods) both from the device to the console, and a hose from the console to the high-pressure gun
production of hoses for high pressure pulling 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-sinks are completed) with a more durable and professional high-pressure hose. If you just want to repair the old hose - contact us. Also, our sleeves are made or repaired from various high-pressure apparatuses: 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 UNPRESSURE your original high-pressure hose, that is, remove the tips from the original hose, and subsequently press them 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.
Popular with homeowners. With this compact device, you can clean almost any surface from dirt. In addition, the use of a mini-sink allows you to reduce water costs. Therefore, such devices are often used in car washes and cleaning companies.
It is quite logical that the continuous operation of the mini-wash can lead to equipment failure. The most common problem should be considered a breakdown of the high pressure hose that provides water supply under pressure. Below are solutions for some common problems.
Diagnostics, maintenance (TO), minor repairs is 2-3 days.
Repair with bulkhead - 30 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 a hose breakdown lies in the damage to the flange, that is, the fastener that connects the hose to the minisink. In this case, it is necessary to purchase a flange that is suitable for its parameters and install it in the base of the hose. The installation procedure may require the use of pliers and a hammer, with which the fasteners are adjusted 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 appeared 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.
The connector is an elongated metal one-piece piece that is attached at the point of rupture. To hold it, clamps are used that “tighten” the connector, preventing it from moving.
Due to intensive use, the service life of high-pressure hoses in automatic car washes is short. They can be attributed to the number of car wash consumables that need fairly frequent repair or replacement. At the same time, high-pressure hoses are an important part of the smooth operation of car washes.
We carry out all types of repair work on high pressure hoses (repair connections, replacement of worn fittings) on site (directly at the sink) or replace them when repair is no longer possible. We carry out all types of work in the shortest possible time to minimize downtime. If repair is not possible in the shortest possible time, we replace the hose of any length and diameter. We make prompt delivery and installation of Karcher brand high-pressure hoses. Their distinguishing features:
increased margin of safety against corrosion of hose fittings; abrasion resistance. Karcher is the world's leading manufacturer of car wash equipment.The operating temperature range for Karcher high-pressure hoses is from -40 to +130 degrees Celsius. All brand products for sink equipment are guaranteed to justify their price.
For optimal use of the working area of the car wash, the length of the Karcher high-pressure hose varies from 10 to 30 meters or more.
The costs of any emergency situation can be reduced if you are prepared for it in advance and entrust its solution to professionals. During the operation of the sink, contacts of proven specialists who carry out prompt repairs are necessary. This will be the key to its impeccable functioning and a guarantee of quality for customers.
High-pressure hoses, more commonly referred to as high-pressure hoses (HPHs), are designed to create or absorb the working force that is transmitted under high pressure by liquids or gases pumped into them.
The main field of application of high pressure hoses is hydraulic and pneumatic systems of various devices and mechanisms. Outside of industrial production, motor vehicle owners most often deal with high-pressure hoses, these are power steering hoses (Power Steering), and those who use high-pressure pumps, for example, the most common Karcher brand in our country.
The design of the high-pressure hoses is due to the need to withstand internal pressure, which can reach several hundred atmospheres.
In addition, the inner surface of the high-pressure hose must be impervious to the media being transported. Therefore, its lower layer is made of oil and petrol resistant rubber or synthetic rubber.
For the manufacture of the upper, thicker layer of the high-pressure hose, wear-resistant rubber is used, which, if necessary, is supplemented with thermal protection in the form of a corrugated coating, metal or polymer.
A metal wire is wound in several layers between the upper and lower layers of rubber, thanks to which the hose receives the necessary rigidity and strength. Layers of wire are interspersed with thin rubber films.
Depending on the method of winding the wire, there are two types of high-pressure hoses:
Coiled. In the production of this type of hose, the coils of wire are wound in even rows.
Braided. In this case, the coils are wound at an angle to the axis of the hose so that the coils of the previous layer cross with the coils of the next layer of wire. Braided hoses are more durable and able to withstand more pressure than winding hoses.
In addition to the wire, textiles can act as an internal rigid frame.
The number of wire layers and the thickness of the rubber layers are set by standards that determine the scope of one or another type of high pressure hoses.
To fix the hoses in place, fittings (tips) are mounted at their ends, which are of the following types:
Fittings are fastened to the ends of the hose using compression couplings, which are pressed on special machines.
Depending on the type of shank, fittings are classified into series:
Universal. This series can be used in all high pressure hoses with the exception of coiled type hoses.
Interlock. The series is used for winding sleeves.
When installing fittings of this type, it is imperative to remove both layers of rubber, inner and outer.
Fittings for high pressure hoses
The operation to remove layers of rubber is called hose debarking.
CS. The fittings of this series also crimp the coiling sleeves, but it is no longer necessary to remove the rubber of the upper and lower layers.
Fitting failure is the most common cause of high pressure hose failure. This is due to the magnitude and intensity of the loads they experience.
The causes of damage can be divided into the following types:
Manufacturing defects. Most often, this is a poor-quality crimp of the joint of the fitting with the hose, due to the use of handicraft or non-adjusted equipment.
Damage received during the operation of the main mechanism. They appear as cuts and ruptures in the hose. The most common cause of them is the sagging of the high pressure hose due to the wrong length.
Damage caused due to inconsistency of the HPH parameters with the operating conditions. This could be a hose rupture or a fitting failure, due to which the pressure turned out to be higher than that for which the hose was designed.
In the same row, damage to the outer layer of the high pressure hose should be mentioned when it is used in a different temperature regime for which it is designed.
Important! In order to protect as much as possible from possible damage to the high pressure hoses, when choosing them, it is necessary to carefully check the compliance of their characteristics and parameters with the operating conditions.
High pressure hoses with fittings
First of all, we are talking about the calculated value of the maximum allowable value of pressure, temperature and the minimum bending radius of the hose.
Fittings corroded.
Broken sleeve.
Abrasion and wear of the top layer of the hose.
Sleeve blockage.
Violation of the tightness of the fitting connection.
Hose fitting torn off.
Fitting joint leak.
Thermal damage to the inner layer of rubber.
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From the foregoing, we can conclude that the repair of high pressure hoses consists either in replacing the damaged area or in replacing fittings that have become unusable.
When replacing a damaged area, as well as when replacing fittings, it will be necessary to crimp the couplings, that is, technologically these two actions are very similar.
The sequence of operations in this case looks like this:
The damaged sleeve is disconnected from the main mechanism.
On a cutting machine, a new sleeve is cut to the size of the old one. Moreover, for measurement, the distance between the ends of the nipples at its ends is taken. It is better to choose a high pressure hose designed for more pressure than that for which the old high pressure hose was designed.
The markings that are placed on the sleeves will help you choose the right diameter.
Factory marking DN indicates the diameter of the internal channel of the hose.
If a hose designed for increased pressure (heavy hose) is to be repaired, its ends are cleaned from the inside and outside to a metal braid. This operation is carried out on barking machines.
Then select the desired fittings. This can be somewhat difficult as imported fittings are manufactured to different standards.
After debarking and selection of fittings, they are crimped on crimping machines. Removable swaging jaws are selected for each diameter.
The next step is to check the quality of the pressing. For this, a control probe is used, but it is best to test on a special test bench.
If a non-standard connection is found, then the repair is carried out using a repair fitting. For this, the head of the old fitting is taken, to which the part to be crimped is soldered.
This method is often used by motorists for emergency repair of power steering hoses, as well as owners of pumps and Kircher mini-washers.
The reason for the occurrence of damage to the power steering hoses most often is that when the steering wheel is rotated due to friction, a serious effort occurs. This force causes deformation of the elastic element, which changes the size of the holes in the distribution mechanism that regulates the pressure drop in the hydraulic cylinder.
As a result, the power steering sleeve, connected to the restrictive valve, wears out. This power steering sleeve is designed for pressure, depending on the brand of car, from 70 to 130 kgf / cm2.
At such a high pressure, repairing a damaged power steering hose with clamps or wire is almost impossible.
There are two options left: either replace the entire power steering tube, or replace only the damaged part of it by moving the fittings to a new hose.
Moreover, it is better to rearrange the fittings in a special workshop.
Replacing and installing the power steering hose is as follows:
The front of the car is raised on jacks.
The steering wheel turns all the way to the left.
A syringe with a tube attached to a needle is pumped out of the hydraulic booster reservoir.
After that, the hose is disconnected, the working openings of the hydraulic system are closed with plugs.
Power Steering Hoses
The selection of a new hose is carried out with exact observance of the diameter, otherwise the performance of the hydraulic booster may change.
Then a new hose is installed, fluid is poured into the hydraulic system and the quality of the installation is checked.
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People with professional skills are able to repair high pressure hoses for hydraulic systems of a car or a Karcher pump manually using the simplest equipment and fixtures. But the quality of such repairs will remain in doubt, which is highly undesirable.
It must be understood that high pressure creates a zone of increased risk, when a breakdown or abnormal operation of the high pressure hose can lead to serious consequences. Especially when it comes not to the Karcher pump, but to the hydraulic systems of heavy equipment. A far from complete list of such consequences looks like this:
Shooting of fittings and dangerous outflow of torn hoses;
Fire or explosion of the working fluid;
Loss of vehicle control;
Poisoning and burns due to liquid spilled from the hoses.
Accurate observance of instructions, attentiveness and accuracy during installation work, as well as contacting specialists if necessary, will help to avoid this and ensure long-term and high-quality operation of the repaired pipeline.
VIDEO
Do-it-yourself Karcher repair. Do-it-yourself repair of a high-pressure hose, high-pressure car wash, mini-wash, foam nozzle, Karcher pump With regular use of a high-pressure washer, high-quality maintenance of the device in a service center is required. In order to save money, many users repair 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 denial of further service.
For trouble-free operation of the device, regular replacement of oil, seals and cuff on the pump (high pressure pump) is required. In the event of interruptions in water pressure or improper storage / use of the device, an urgent do-it-yourself repair of Karcher may be required. What parts fail?
Pump, motor and pressure sensor.
Electrical part.
Nozzle, hose and gun.
The choice of household mini-sinks eliminates the occurrence of difficulties in care, but different models have their own characteristics, which you must first find out from the seller. For example, a car wash nozzle with a lamellar structure will ensure 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 clarify the availability of the nearest service centers and the warranty period. If such issues are overlooked, the breakdown of the device will lead to unnecessary problems. If you decide to repair the Karcher with your own hands, the right step is to study the instructions in detail.
According to the manufacturer and employees of car washes, the main reasons for the breakdown of the device are poor water quality and lack of after-sales service. To increase the service life of the unit, it is necessary to comply with the basic requirements:
Install a filtering device for coarse and fine water cleaning at the inlet to the AED.
Control the flow of the required volume of liquid according to the technical indicators of the device. For example, if the fluid flow is 15 l / min., And the water supply allows you to get 13 liters, after 2 months you may need to immediately repair the Karcher with your own hands (or at a service center).
Water pipe diameter should be 3/4 inch per unit.
Factory nozzles and accessories are subject to self-replacement.
Video (click to play).
With regular preventive maintenance, you can eliminate 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 average throughput indicators of the washing area, it is enough to carry out treatment once every 3 months.
Monitoring the condition of the pump for a good flow of liquid, external application of oil, as well as minor repairs to the Karcher car wash with your own hands (changing filters, tightening bolts) will extend the life of the device.
For AED with heating, it is obligatory to prevent the boiler - cleaning the fuel filter (removing scale on the inner walls of the heat exchanger and external plaque).
Repair is required if there is a decrease in pump performance and a decrease in operating pressure. This is caused by fluid leaking through the plunger seals. Wear of oil seals is produced naturally or when exposed to abrasive elements. At high pressure, small scratches will affect the leakage of fluid.
The first signal of a malfunction is a small puddle formed at 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 seals (seals). More difficulties will cause the installation of a new drive, 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 condition. The formation of defects in the fit of the surfaces of body parts leads to a decrease in the main characteristics of the device. With 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 ribs of body parts. Damaged items must be replaced.
If the device is equipped with the Total Stop system (switching off the pumping system when there is no pressure on the gun trigger), leaks will lead to involuntary switching on - the automatic device perceives a decrease in pressure as a “start” command, the device rattles.
The deterioration of the bypass or bypass valve, the rubber seal (ring) of the pressure sensor and the failure of the hose affect the performance decrease or shutdown of the AED. This is accompanied by a low level of pressure of the gun, a decrease in the density and washing characteristics of the jet.
If the device does not maintain the set pressure level, the pump works intermittently and the water is supplied in fragments, repairing the Karcher high-pressure washer with your own hands will not be too difficult. It is enough to unscrew the bolts with a screwdriver and remove the housing, get the motor with the pump and separate the engine from it. The pump must be directed upwards, otherwise 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 cause of the failure of the device is found out. It could be scaling or clogging. All parts in the inside of the pump are cleaned and wiped with felt. Then the structure is assembled in the reverse order.
Do-it-yourself repair of the Karcher high-pressure hose consists in crimping the damaged element at the ends or along the entire length. If the hose is torn off the flange, the unusable part should be cut evenly to an area where there are no deformations. The required flange is selected and placed on the hose. The first must be inserted into the second and compressed in a vice. Hammer strikes from above.
If a cut is formed along the length of the sleeve, similar work is done. The hose is cut and removed to an undamaged section. A connector of a given diameter and two clamps are inserted. They are put on the hose, the connector is inserted, tightly crimped with clamps. If cracks form along the entire length of the sleeve, do-it-yourself repair of the Karcher high-pressure hose is not possible. 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 washed with clean water after use, the mesh in the form of a shaft becomes clogged with dried “chemistry”.
To clean the foam tablet, it is necessary to perform a number of operations:
Disconnect the tank from the main frother.
The arrow indicates the location of the pin holding the plastic tip of the tablet on 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 the 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 with a needle.
The assembly of the product is carried out in the reverse order.
Correctly made repair of the Karcher nozzle with your own hands allows you to extend the life of the device and reduce the cost of its maintenance.
