The sink began to work intermittently and there is no pressure. What to do? How to fix a Karcher sink with your own hands?
The reason you described may lie in the incorrect operation of the water pump. To fix it, you need to: first of all, turn off the power supply, then remove the plastic casing (case) and get close to the pump itself. The pump should be removed and disassembled in detail, this is the only way you can determine the cause. Wear of O-rings and much more visually immediately after disassembly, all defects are clearly visible. Often, solid particles get into the water, which can disrupt the operation of the pump. When the pump is disassembled
when all the parts are removed, they need to be put in warm water with citric acid so that all the old grease goes away. Then wipe everything thoroughly and replace every part with defects.
You write that there is no pressure, most likely the reason is in this bypass valve
But I will immediately emphasize that there are quite a few models of Karcher high-pressure washers, the reasons for breakdowns are even more, because the technique is rather complicated.
Correct diagnosis is 90% of the repair success.
The valve that I wrote about above can stick, the reason is dirt.
Sometimes it is enough just to rinse it, clean it and lubricate it, this is a collapsible unit, it is better to take a branded Karcher lubricant, in our case we need silicone lubricant.
We remove the casing (usually it is 8 bolts), put the device lying down with the wheels up.
Next, we remove the pipe (plastic), here you need a hex key, it is held on three bolts.
We take out the valve itself with pliers.
Examined, rubbed, want to disassemble into components.
Lubricated, assembled the sink in reverse order and started it.
If everything is in order, then we have managed with small efforts (investments); if not, we change the valve to a new one.
When reassembling, check the mesh filter, it is located in the branch pipe (see above), the mesh may be torn due to this, dirt gets on the valve.
The filter is only cleaned, it is not repaired, if it is torn, we buy a new one and replace it.
If there are interruptions in work in Karcher, as you correctly noticed this may occur due to a loss of pressure, then the water supply stops until the device reaches the required pressure and so on constantly.
As I noticed, there can be several reasons, at least two.
You should not go straight into the water pump, first you need to look at the contamination of the filter and the water supply system in general, it is quite possible that there is simply no access to water.
If everything is normal with pollution, or rather everything is clean, then check the tightness of the system, there is a possibility that the pressure is being released due to water leakage from the system, perhaps the hose just cracked or the cuff is leaking.
If the first two examinations did not reveal anything, then the water pump is diagnosed and repaired.
They call it correctly - pump.
I personally recommend installing a new pump assembly, due to the fact that in the old one there may be a production and replacement of a repair kit will not work.
Yes, and at a price there is not much difference, so the pump costs from 2000 to 5000 steering wheels, if assembled, and repair kits from 1000 to 4000 rubles.
To choose a pump, you need to know the Karcher model, and in some cases, how it looks.
Video device and repair of mini high pressure washers karcher k3 k4 repair karcher k3 k4 channel Mechanic_x3mal
Karcher is a quality technique for professional cleaning or household cleaning.
But even high-quality equipment can fail with constant or improper use. In the article, we will talk about the principle of operation of devices, weak points of technology, main breakdowns and their causes, so that in case of collision with any of them you can know what to do.
Despite the fact that Karcher sinks are the leader in their industry, they also fail. If the Karcher sink does not turn on one day, you do not need to panic, in most cases the problem is not serious and can be easily corrected. Some of the most popular reasons why the sink may not turn on are:
In 90% of cases, if the Karcher does not turn on, the reason is the sticking of the valve. Typically, this problem occurs due to the fact that it is through the valve that the detergents pass. As a result, it stops responding to switching on.
You can repair the system yourself if you have basic technical and electrical skills. Sticking of the valve can be due to the constant passage of detergents through it, which are supplied through the plastic nipple.
To fix the problem, you need to disassemble the sink body. This will require a screwdriver, hexagons and sprockets, or you can use a screwdriver to make the process go faster. Be sure to check that there is no water inside the sink and unplug it.
First you need to disassemble the case, then remove the clamp that secures the motor. The valve we're interested in is hidden under a plastic nipple, but you can't get it, you can only check the valve travel. To remove the valve itself, you need to open 4 hexagons on the body, disconnect it, remove the electrical block and divide the lower part. You will see the valve tip pressing against the disconnect end of the circuit, which will prevent the sink from turning on.
Now you need to clean its seat, wipe it with grease, and if the spring is bent, unbend it. However, if you do not have technical skills, it is best to contact a service center.
To reduce the risk of such a problem in the future, you should buy a foam lance - the foam is much lighter than the stringy detergent.
VIDEO
To understand what exactly broke and why the sink stopped working, you need to understand how Karcher works. The operation of this car wash is based on high-pressure technology, water is supplied under pressure, such a device allows you to cope with any pollution as quickly as possible and with low labor costs, with its help you can wash a car or put in order a site.
The design of this device is based on a powerful synchronous electric motor, its power can reach 3 kW. The motor rotates against the swash plate attached to the shaft. In this case, the plunger is in contact with the washer, making translational movements, and when the plunger moves to the lowest point, water is supplied through the inlet valve. And when the plunger moves up, overpressure builds up and the high pressure outlet valve opens.
Modern models of Karcher sinks are equipped with water-cooled electric motors, which makes it possible to increase the service life of the engine and prevents it from overheating during operation. Accordingly, the sink can work longer without interruptions, which means that its productivity also increases.
German-made household mini-washers are usually equipped with plastic or aluminum valves, which makes the device cheaper, but reduces the functionality of the device. Sinks with plastic or aluminum valves cannot work for a long time without overheating; they often require recharging. The average operating time without interruption for such devices is 60 minutes.
Professional pressure washers use a brass or stainless steel pumping unit. Accordingly, the operating time without interruption for this sink will increase. Some professional-type models are capable of working several shifts without interruption.
In order for the minisinks to break less often, that you need to operate them correctly, the device should not be left for long breaks with high pressure in the system. This will create additional stress and lead to premature wear of the elements. It is also recommended to use an automatic shutdown device - it is installed in all modern car washes and can save up to 20% of electricity.
Speaking about the safe operation of the sink, you also need to figure out which oil to fill in Karcher. It is recommended to use only high-quality oil in order for the sink to work stably and without interruptions, as well as to prevent its premature breakdown. It, like fuel, influences the life of the sink and the result during the operation of the generator. During production, the manufacturer fills in the necessary oil on his own and usually no replacement is required - the amount of oil is enough for the entire life of the mini-washer. If we are talking about a household model, then a really factory filling should be enough. But when using professional washers, the need to change the oil sometimes arises.
You can use multi-purpose oils such as CD or SG, they are suitable for any time of the year, for any type of fuel. Otherwise, S-marked oils should be used for diesel generators.
Do-it-yourself car wash "Karcher" repair
Details Published on 04/09/2014 15:50 Views: 2736
I will consider the option of self-repairing the Karcher 5.20 car wash in case of one of the breakdowns that I have. Its essence lies in the fact that after about 2 years of operation, the sink suddenly stopped delivering the pressure set for it, an intermittent operation of the pump appeared and, accordingly, the pressure of the jet became intermittent.
Considering that, for objective reasons, the warranty repair of the device was excluded, I had to experiment and carry out repairs with my own hands in the garage.
I will try to describe the process in the form of a photo instruction:
Remove the case (assembled on bolts and disassembled with a screwdriver),
We take out a motor with a pump,
We separate the pump from the motor (this must be done very carefully, holding the pump up, otherwise oil will pour out from the piston drive)
Now you need to remove it from the valve piston. When doing this, do not use sharp, hard tools - they can easily be scratched.
We disassemble the pump in two (in half) and again remove the valves from it (I called them that)
And now the reason for the breakdown of the apparatus becomes visible: it turned out to be a small pebble that was stuck in one of the valves.How he got there remains a mystery - the sink was always operated with a filter and there was also an additional, external filter on the water supply.
The valve also has traces of very small particles and a coating like scale (apparently hard water).
We clean all the elements inside the pump and wipe it with felt or other soft cloth (plastic valves and any abrasive can aggravate the situation).
When finished, we assemble the pump and motor in reverse order.
If oil spills, you can replace it with any compressor oil.
After such a simple procedure, the car wash works like new.
Based on materials from the site:
Forum / Tools and equipment / High pressure washer problems
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Usually, when the water is supplied and we turn on the sink to the outlet, the pump turns on for a second, as if creating pressure in some receiver. After that, from the button on the sprayer, the unit actually starts up, the compressor works and the water flies in the given direction.
This time, everything went differently: the pump is not limited to one time, but “growls” with a frequency of an hour hand, about once every two seconds. The impression is that somewhere inside there is a leak, and you need to constantly pump up water. After pressing the button on the sprayer, the sink is already working normally, but when you release it, these periodic starts again.
Tell me in which direction to dig in this case, where could there be a malfunction? The warranty has expired a long time ago.
Already many people earn just talking on our forum!
Karcher car washes are a popular type of modern cleaning equipment that has become widespread, largely due to its reliability and durability.
Nevertheless, these car washes - just like any other equipment - inevitably wear out during operation, which over time can lead to its breakdown. Specialists who carry out the repair of Karcher car washes identify the following main malfunctions.
The most common problem is a decrease in the performance of the car wash pump. A drop in operating pressure is directly related to it, leading to a decrease in the efficiency of the washing equipment. The reason for the drop in pressure, as a rule, is the wear of the stuffing box seals available in the pumping unit of the Karcher car wash. This wear can be natural (associated with long-term operation); it can also be caused by poor water quality and the presence of abrasive particles. A symptom that allows you to identify the described malfunction is the appearance of puddles of water under the car wash. This signal should not be neglected: a problem that occurs can lead to even more serious consequences. The wear process will develop on an incremental basis, while high pressure water can destroy the oil seal and break into the crankcase of the drive mechanism. The oil in the crankcase will turn into a foamed composition and will not be able to fulfill its lubricating function. Obviously, the repair of a car wash in this case will turn out to be a much more costly event than if you contact a service center in a timely manner.
The failure of the Karcher car wash can be associated with such malfunctions as wear of the rubber rings of the pressure regulator or bypass valves, as well as damage to the hoses. Symptoms such as:
decrease in the recoil force of the pistol at the moment the car wash is turned on;
decrease in the density of the liquid stream;
decrease in its detergency.
Any of the listed symptoms is a reason for immediate contact with a specialized service center.
The Karcher car wash problems listed in this article are common, but, alas, they are far from the only ones. It is good news that the professionals of service centers these days successfully eliminate almost any defects, completely restoring the performance of car washes.
Why does the Karcher not gain pressure and work in jerks with the cutter on?
The problem can affect most budget sinks, for example KARCHER K 3, 5.200 and others.
Karcher can work in jerks for several reasons.
If there are air bubbles in the underwater hose, but we do not consider this issue.
A drawdown of electricity is unlikely to give the Karcher work in jerks, although this is also possible.
The main reason is the pressure valve. When the cutter was connected, my Karcher worked at intervals of a second - it turned on and off. All other problems (drawdown of electricity, airiness of the system) are excluded and checked. If everything is in order with this, most likely the spring of the water pressure valve is out of order. The valve is responsible for stabilizing the Karcher pressure and turning off the electric motor. If the karcher works in jerks at short intervals, this is most likely the reason.
The valve spring is made of stainless steel and tends to sag after some time of intensive use. Now, to turn on the valve (and turn off the engine), you need a much lower pressure, because the spring has sagged. The cutter turns on, the pressure rises sharply, the valve turns off the engine, the pressure drops, it turns on again and so on in jerks at intervals of 1 second. With the usual Karcher nozzle, everything is fine, the pressure there is not so great.
In this video - a more detailed explanation of getting rid of Karcher jerks.
First, let's take a look at Karcher 5.20
take out the valve
Here is the problematic Karcher pressure relief valve, the spring of which prevents us from living
There are several options to solve the problem.
But the original spring is needed - made of stainless steel, since the valve is always wet, and corrosion in this place is not allowed - otherwise it will jam. Hence the disadvantage - there are no good stainless steel springs)
After stretching under compression, it took on its original shape.
compress the stem holding the spring. There is an adjusting thread, which can be tightened to shorten the spring and it will become stiffer. It is better to look at the video. We'll have to file the tip of the rod a little so that it twists deeper.
you need to twist a millimeter by 1.5 -2 from the original.
for this we clamp the Karcher valve in a vice so as not to let it turn
We disassemble it with pliers. The valve is threaded, so force is required. In a vice, you need to squeeze accordingly.
Here is this stainless steel spring
We file the tip of the screwed part of the valve on the grindstone by 1.5 - 2 mm to begin with
We tighten the spring. Putting the Karcher in reverse order.
LUBRICATE THE SPRING AND VALVE WITH SILICONE GREASE
If the jerks remain, you need to tighten the spring.
If the karcher works and does not turn off, then the spring is squeezed and the valve is clamped. You need to let go a little.
You may need to disassemble and assemble several times until you fully configure. Remember to RELEASE GUN PRESSURE and DISCONNECT FROM MAINS before each disassembly.
now the karcher cutter works fine - without jerking
After a wonderful summer operation of the Karcher sink in the country, he was quickly removed for the winter in the garage.
When it came time to get it for the next seasonal use, it suddenly turned out that the electric motor of the car wash did not start. When connected to the water supply and the electrical network, Karcher did not want to wake up from hibernation, while a thin stream of water flowed from the nozzle of the pistol, when the trigger was pressed.
1. The fact that to disconnect all the hoses, I think everyone will understand.
2. Divide the Karcher body in half.
Inside the body there is a capsule with a motor and a pump.
After unscrewing the bolts, we disconnect all parts of the pump. To fix the problem, I take the fourth part (the head with the valve).
This is where the valve is located, which is responsible for turning off the car wash during the process of washing the car with a short release of the trigger of the pistol.
I was horrified by the picture I saw:
To pull out the valve piston, I also used a vise and bolt to fit the valve stem.
Also resorting to the help of a vice for pressing the studs.
BE CAREFUL WHEN DISASSEMBLING AND ASSEMBLING THE VALVE!
Then, the maintenance of all units and valves of the car wash was carried out, the oil was changed (I used 10/40 engine oil).
Then I assembled all the pump assemblies and bolted them.
Karcher was assembled in reverse order, connected to the water supply and tested. The test showed that the car wash was fully operational.
The last question remains: How long will the valve work, since the damaged surface is more intensively corroded. This means that the problem of the malfunction can return.
This concludes my story about the repair of the Karcher car wash, please do not judge strictly the technical narrative of all the wash units.
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07/23/2015 14:23 2015-07-23T11: 23: 52.000Z
repair karcher.successful repair Karcher k3
# Connection # sinks # karcher # high pressure repair # Karcher Connection # Mini-sinks # Mini-sink # Mini-sink karcher3repair repair
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Repair Karcher Repair Karcher Successful Repair Karcher K3 DIY
Greetings, dear readers of my blog! Today I will talk about how to use the device correctly and what malfunctions of a pressure washer can occur when using it in a domestic environment. Today, many car enthusiasts often buy devices for “home” washing their cars. And rightly so, because you don't want to pay extra money for such work, which you could do yourself! Moreover, it should be noted that the purchase of such a device does not at all limit you in its application only in relation to the car ... The functionality of the device allows you to use it for various household purposes, so such a device will be a very useful accessory in everyday life.
In order for the device to serve as long as possible, you will have to observe all the points of careful operation, which are indicated in the instructions for use. Moreover, when using such a sink, the following rules must be observed:
Now it's time to tell you about the repair of pressure washers. Even with proper operation, certain breakdowns occur, which in any case need to be eliminated. This can be due to various reasons. In general, we will consider the main malfunctions and methods for their elimination.
Decrease in pressure. This is one of the most common problems that prevents you from getting the most out of your washer. In this case, productivity drops, which increases the process time. Most often this happens due to damage to the oil seals. These parts can break due to prolonged use or due to the presence of substandard impurities. This breakdown must be taken seriously and the part replaced immediately. Otherwise it can lead to more serious problems, so it is best to fix it right away. Often you can change them with your own hands, since there is nothing complicated about it.
Damage to one of the valves can also result in loss of performance. In this case, you need to delve into the reason in more detail. In most cases, it is best to contact service. If the device does not turn on, then it is highly undesirable to try to make it yourself (you should also contact the service center).
In order to prevent such damage, be guided by the following provisions.
Carefully monitor the quality of the water used and avoid clogging.
Install filters. With their help, you can extend the service life several times.
Conduct prevention. Inspect it every month to avoid unexpected breakdowns.
Watch the voltage and change the oil in time! Then there will be no problem.
Nowadays, many models of car washes are presented on the automotive market. Each of them differs in its features and cost ... I have studied this issue more deeply and have compiled a small list of the most, in my opinion, quality manufacturers.
"Champion". Very reliable and easy to use.
"Calm". Very compact and robust.
Hooter. Versatile enough as it is ideal for any job.
Interskol. It has high performance and reasonable price.
On this, dear friends, I say goodbye to you! Don't forget to read the updates and share the blog with your friends!
repair karcher.successful repair Karcher k3
# Connection # sinks # karcher # high pressure repair # Karcher Connection # Mini-sinks # Mini-sink # Mini-sink karcher3repair repair
repair karcher checking the bypass after replacing the pump in the device k 3 96. repair karcher k 3-4 measuring the pressure karcher k 3-4 where.
karcher k 3 replacement of the pump + eco fishka
Does Karcher work in spurts and does not create pressure? The milling cutter does not work on the 5.200 karcher? in this video I will show you how.
Video review of the 4P China high pressure washer. The best price on the Russian market. Buy online -
In this video, I tried to talk about repairing a Karcher k7 pressure washer. I am doing household repair.
Restoring the flagship KARCHER HD 10/25 4S high pressure cleaner after defrosting. Troubleshooting repair.
The new device did not want to be turned on, so I had to sort out its karcher k 4, the factory defect is a new device.
In this video, I tried to talk about repairing a Karcher pressure washer. I am doing household repair.
It works in pulsations with an interval of 1-2 seconds in a wide jet mode. I apologize for the fakyushka, it itself somehow)))
It is advisable to wash your own car yourself today. based on our own observations, the costs for.
We are trying to find the reason why there is no normal pressure in the apparatus. I used to work at 120-130bar now 50-60.
Vedehod on tracks Part 1 Super Car TV channel BB (Without women) will be of interest to those who care.
You take and do everything yourself, in principle everything is simple. The Germans are still there.
In this lesson, I will tell you and show how to clean the boiler from soot.
Specialists tell me! I got a mini-wash Karcher K 2-04 (the smallest) I use the third season. The problem is that while the gun does not come out of the gun, the wash pump should be silent and it works intermittently-whack-whack, whack-whack frequent switching on, frequent switching off
The filter mesh is clean. Who will tell you how to repair it on your own?
somewhere there is a crack in the pump casing, through it the pressure is released
maybe the valve is undercut
the valve can be in the gun
I took the fifth model in the spring. I worked for about 5 hours in total (car, paths in the garden), last weekend there was such crap: at regular intervals (3-4 minutes) it spontaneously turns on (1-2 seconds) and turns off immediately. I sinned on low water pressure in the water supply system (garden plot, common water tower). Tomorrow, too, the pressure will be low (big analysis, we have a tiplo
That Vasily Maka
Vasily Maka wrote:
I have 5.86
Give it to the service, although m. you just have a hose not tightly dressed?
ZY
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The cost of the device varies from 4,000 to 20,000 rubles, depending on the material used in the production 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.
To ensure a long service life of your pressure washer, use a water filter to protect the inner hose structure 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.
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
"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.
Video (click to play).
VIDEO
