What to clean the contacts in the car. Chemistry for electronics - cleaning contacts. Acrylic insulating varnish

Andrey02.11.2016Electrical equipment Lacettiavitel note, sensors, engine, radio, general questions, spark plugs, electrical equipment

What and how to clean contacts? Why, in general, do I need processing, protection and lubrication of contacts? Reply to these and other questions in this small article.

It so much that the electrical equipment system is slightly deprived of the part of the car owners and remember it only when either the next lamp went into the world forever extreme things, or when at the most inappropriate moment the starter does not respond to the rotation of the ignition key.

It is also worth noting that the fault of the faulty wiring happens more than all the fires of cars and occurs instantly and unpredictable.

Therefore, the electrical equipment system, like all other car systems, requires regular maintenance.

Maintenance of electrical equipment car

Moreover, in our time this procedure is even more important than before. This is explained by two reasons:

• cars have literally stuffed with electronics
• applying engine control systems

Well, with the first reason it is clear - the more wires, the more possible problems.

Why does the engine control system require high attention?

This is due to the use of lower voltage in the wiring of the engine control system and the use of pulse signals.

The thing is that the higher the voltage - the smaller the loss.

And what do we get? Previously, only 12V or, on some - 24V, was used in the electrical equipment. And now the ECU works mainly with a voltage of only 5V, and some sensors are completely with Milvoluts.

The ignition systems have become more powerful and are no longer controlled by non-banal closure / opening of contacts, and pulses of a certain duration defined by the control unit.

All these minimal chains should always have a minimal and constant resistance, and they work in constant temperature drops among the washesized and dusty air under the hood. Condensate, puddles on the roads, constant vibration and corrosion inevitably make their own adjustments to the system.

I can confidently say that the lion's share of all problems in the engine control system is related to the state of the wiring.

And the weakest link in this chain are all sorts of contacts and connecting blocks.

What to clean and protect contacts?

All contacts sooner or later begin to corrode and coated with other oxides, violating the system.

Therefore, the question arises logical - what and how to clean the contacts?

The mechanical way to clean the contacts is extremely not desirable. Yes, and in modern systems they do not fit to them. Folk methods with eraser, soda and the like do not give the desired result. And the use of these ancient methods in the 21st century I consider the struggle with windmills.

I, as a radio mechanic, have long used modern chemistry in solving these tasks. The same chemistry broke with success in the automotive industry.

From practice, both for me, two such funds deserve special attention.

Electrical Contact Lubrication

One of them is contact 61.

And the second - Liqui Moly. Electronic-Spray.

This is a means for cleaning, lubricating and protecting all sorts of electrical contacts as low voltage and high

The price tag for these funds is not quite budget - 200ml worth 180-200 UAH. (approximately 8 American money). But it is worth it, believe me. Moreover, it will be enough for him very and very long.

One processing is enough for a minimum for a year, so once spent time spent time will give you confidence for the whole year that in the most responsible moment the contacts in the wiring will not be submitted.

About Liqui Moly Electronic-Spray completely little information on the Internet and other sources. Therefore, reasonably many questions arise from many. One of the main - does this tool spend and whether there will be no closures and leakage currents?

I used it for a long time and I can say that it is quite the opposite, it prevents wandering currents, current leaks, heating contacts, sparking, as it improves contact, filling microscopic cracks and roughness on contacts.

I find it use where only you can - Contacts Avtogynitolas, connectors of all sorts of sensors, terminals, terminals rechargeable battery, contacts lamps, transition connectors, switches and switches, ignition system, etc. And it is only in the car! And in the everyday life and repair of all kinds of techniques of applications is no less.

There was a case with a car VAZ. The man asked to see where the signals of turns were missing. He spent all day to find a problem, replaced already stealless switches, and the problem was not solved.

In five minutes, I simply processed an alarm button with such a means and returned a flashing type of car even without replacing the button!

To use this spray is very simple. If the contacts are not very dirty, then the pixyat is completely a bit for contacts and connect the connector into place. If the contacts are dirty, then also pshikham and wait for the rapid reaction with the release of foam and connect everything back. If the contacts are very dirty, then pshikam, we are waiting for 10-15 minutes, we remove the mud or squeezed air and repeat the processing again. But the last option is extremely rare and usually everything is cleared from the first time.

There are means separately for cleaning, separately for lubrication and separately to protect and displace moisture. For example, a series of contact has a lot of them, sharpened under a certain task. Kontakt U - Purifier Purifier and Fluses, Kontakt S - Cleaner contacts from oxides and sulfur connections, Kontakt 60 - Anticorrosive Contact Protection, etc.

But the means of Kontakt 61 and Liqui Moly Electronic-Spray are positioned as universal. So to speak, a budget option.

The price and properties of them are almost the same, so you choose, solve yourself.

How to Clean Contacts

First of all, I advise you to handle the detonation sensor connector and connecting other low-voltage sensors.

Attention! I do not advise you to process the oxygen sensor connector in this way! The reasons are set forth in the article about the lambda probe of the car

Absolute pressure sensor in the intake manifold

Throttle block

Battery terminals.

It is worth noting that for terminals there is a special lubricant in Liqui Moly Tubes "Batterie-Pol-Fett". But I only use spray.

Connectors and Contacts Nozzles

Connecting Pad Wiring Harness

Adsorver valve contacts

Well, of course, the connector of the ECU itself

Also, it is also necessary to pay attention to air and coolant sensors, contacts of the position of the camshaft position, the generator and the starter. Well, and necessarily the radio

Separately, I want to stop on the elements of the ignition system.

Treatment of contacts of high-voltage wires and ignition coils must be performed at one first. As for prevention, so and if there are failures and surveillance in your car harsh pressed Gas pedals. The thing is that if there are problems in the ignition system, they will manifest themselves with sharp pedaling. This is due to the fact that several factors affect the magnitude of the breakdown voltage and one of them is pressure.

On the idling The pressure in the cylinders is not large, but at the time of opening throttle valve It increases sharply, increasing the breakdown voltage on the candle electrodes. And if there is a defect in the ignition system, then it will definitely show its influence at this moment. Talk about it in one of the nearest articles.

So, one of these defects is often a slightly increased resistance of contacts in Wires and, especially, in low-voltage connectors of the ignition coils. And the usual multimeter will not show this.

And very often cleaning and protecting contacts helps to correct the situation. Business for three minutes, and the result will be 100% for the better!

Especially if the car is more than three years, then this procedure is simply obligatory.

First of all process low-voltage contacts ignition coil. Remove the block and apply spray

Next, lubricate high-voltage contacts. To do this, it is not necessary to pour the cleaner into the conclusions of the coil, and it is enough to apply the remedy on the BB of the wire, put it on the coil terminal and slightly twist there. It is also necessary to hold the wire with contact up so that the spray penetrate deeper - in the place of the connection of the tip with the wire itself

We also do the same on the other end of the wire

This procedure I advise you to do even on new wires and coils.

The same applies to other contacts and connections. If you put a new sensor or connect a new automagnetol - apply spray to contacts. After all, the main task of these funds is not only in cleaning, but also in the creation of a microscopic protective film on contacts. This film protects contact from moisture and air, preventing oxides and corrosion.

And do not forget about mounting blocks Fuses and relays. Pulled out relays, handled the connector and inserted back. Nothing cunning

After these uncomplicated procedures, you will definitely notice that the behavior of the car has changed for the better! And the engine control system, electrical equipment and the ignition system will work easier, which will turn into an enlarged resource of the entire engine as a whole.

All the world I. smooth roads!!!

Diagnosis and repair of high-voltage wires

Starter Lacetti

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moylacetti.ru.

How to get rid of oxidation on the terminals of the Accamulator | Auto-online

Annually on the market new models of batteries (AKB) appear with improved technical characteristics. They have a high reserve capacity, work perfectly at low temperatures, are not afraid of deep discharges, easily give big currents and perfectly take a charge. But one remains unchanged - protruding the terminals of batteries are quite vulnerable and require special attention. Our material will tell how to get rid of the oxidation of contacts and battery terminals and ensure its impeccable work.

Why the battery terminals are oxidized with the problem of the oxidized battery terminals in one way or another each motorist faces. It becomes particularly relevant in the off-season when high humidity and frequent temperature change can significantly speed up this unwanted process.

In most cases, the oxidation of the battery terminals is due to the elevation of the electrolyte vapors, the electrolyte leaks on the contacts or malfunctions of the electrical equipment of the car.

ON A NOTE

It should be remembered that even a new battery can evaporate a little acid.

However, having noticed on the surface of the battery of the battery white bloom, first of all it is necessary to deal with the causes of its occurrence. After that, you need to take all necessary measures to eliminate it and prevent re-appearance.

Possible consequences of the oxidation of contacts and battery terminals Many car owners do not consider the appearance of a white fly on the terminals of the battery with a serious problem, but it can deliver a lot of trouble. Often drivers, facing the problem of engine launch, do not even suspect that the case can be in the oxidized terminals. After all, the terminals covered with a milestone significantly reduce the efficiency of the battery. And in cases where oxidative processes are so intensively, that the white flare almost completely covers the terminals, the battery may not cope with its task - and you will not even make your car.

To avoid unexpected surprises, it is necessary to regularly examine the battery, follow its condition, to make prevention and, of course, take measures at the very first signs of failures in its work.

How to see and eliminate the problem of oxidation of contacts and terminals to determine what the problem is precisely in the oxidation of contacts, it is possible according to the following features:

• You include ignition, but the starter "grabs" is not the first time or too hard turns the crankshaft, as if the battery is greatly discharged. The reason may be in the oxidation of the terminals, especially if your acb is quite new or you have recently poured the electrolyte and charged the battery.
• The light of headlights and overall lights has become much more dim. Look for the cause not only in a weak charge - perhaps this is a signal that contacts were oxidized on the battery.

In any case, in this situation it is necessary to take timely measures to prevent serious problems with the electrical equipment of the car. And there are only two ways to solve this problem:

Replacement of Account

This is the easiest and fastest solution to solve the problem, but it is not always necessary to go to extreme measures. Of course, there are situations where the replacement of the battery is the only correct solution (for example, when the electrode fastening). However, in some cases, radical measures can be avoided.

Removal of white plaque with terminals and their insulation

In this case, special compositions protect them from corrosion and oxidation on the battery terminals are applied, which increases efficiency and extends the service life of the AKB. This method will allow not only to eliminate the problem of oxidized contacts, but also for a long time to prevent its re-occurrence. For isolate the contacts of the battery with the help of modern products is not at all difficult, and we will tell how to do it right.

Clean the contacts and terminals of the battery To clear the battery terminals as quickly as possible, efficiently and safely, it is necessary to comply with the correct sequence of actions:

• As with any work with the electrical equipment of the car, it is mandatory to drag the engine.
• With the help of a suitable key to loosen the negative terminal and remove it from the battery. Only after that we liberate and remove the "plus".
• Carefully examine the battery to detect possible defects in a timely manner. If you have serious damage, the battery must be replaced.
• We check the battery terminals and leading wires to them for physical wear.
• Before starting the fight against a flaw, put on rubber gloves that protect your hands from the effects of aggressive substances.
• If you have found a thick layer of white plaque on the terminals, its main part must be removed by mechanical way. This can be done with shallow emery paper or a special metal brush. In the extreme case, you can use a knife or other sharp object. The most carefully need to clean the place of contact of the electrode and the terminals, paying particular attention to the inner surface of the latter. It is necessary to act at the same time, so as not to damage the protective sheath of the wire.
• Then (or immediately - if a slight is a bit), dissolve the tablespoon of soda in a glass of water. Apply the agent to the old toothbrush, then read the terminals well to remove the oxidation products.
• Rinse the cleaned places with distilled or conventional cold water, then wipe the terminals of dry.

ATTENTION!

It is strictly not recommended to clean the contacts with gasoline. Such tips can often be found on the Internet or hear from familiar motorists. However, this is not at all safe, since gasoline can easily damage rubber or plastic parts. In addition, when working with this flammable material it is necessary to observe extreme caution. Yes, and from strong smell in this case, it turns out to get rid no soon.

• Paragraphs 6-8 can be skipped if you use modern compositions specially intended for cleaning electrical contacts that are easily and quickly removed dirt and oxidation products. To do this, it is enough just to spray the product on the surface you want to clean. If necessary, you need to repeat the spraying until the desired result is reached. You can feed the voltage after applying such a cleaner after 15 minutes.
• Purified terminals are put on reverse order - First, connect the "plus" to the appropriate output of the battery and well tighten with the machine with a nut, then we have been done the same operation with a minus terminal.

How to prevent the oxidation of the battery terminals as in many other cases, it is better to immediately take the necessary measures and prevent oxidation, and not fight with an already appeared by a raid. This will significantly increase the battery life and will help prevent the occurrence of a number of serious problems in your car.

Protect the battery terminals using various methods with more or less high efficiency. We will tell about some of them, and what to choose - to solve you.

Folk ways

After talking with motorists, first-year-old-year-old, you will hear a lot of tips on how to protect the battery terminals with the help of Dedov's methods of varying degrees of creativity. Consider the safest of them.

Motor oil and felt or felt one of the oldest methods tested by several generations (though, then there has not yet been effective protective compositions). It is extremely simple: from the material it is necessary to cut the ring of suitable size and impregnate it motor Oil. The resulting gasket is put on the output of the battery, and the terminal is fixed on top. The principle of operation lies in the fact that the wool felt gasket prevents the evaporation of the electrolyte and enter it on the battery terminals.

Various types of lubricants on peeled and firmly tightened terminals are applied by a thin layer. Technical vaseline, solidol, lithol and other suitable compositions available in the arsenal of the motorist. However, each of these products has its drawbacks. Thus, the solidol can roll into lumps in the river, Vaseline has bad conductivity and when hit between the contact and the terminal, it can significantly reduce the efficiency of the battery, and the lithol can be cleaned with the usual auto-mup.

Unfortunately, the considered defense methods cannot be called highly efficient, therefore experts recommend using modern means specifically designed to protect the battery terminals.

Modern effective means

Today, any auto shop can easily find products specifically designed precisely to protect the battery terminals. Typically, manufacturers color such compositions in bright colors so that it can be easily distinguished by the processed surface from raw. The use of these efficient products will prevent terminal oxidation, which will ensure reliable contact and thereby increase the conductivity of the electric current. All of the above will reduce the battery self discharge and will help significantly increase its service life.

One of the most effective means intended to protect the battery terminals is the lubricant for the battery terminals of the famous Dutch brand Presto. This is a blue wax that reliably protects electrocontacts and poles of batteries from oxidation and corrosion, will prevent the electric current leakage and voltage loss. Another indisputable advantage of the product is that it is well compatible with plastic - now you can be absolutely calm for all plastic elements under the hood of your car!

Presto battery lubrication:

• Reliably protects the terminals of the AKB from corrosion and oxidation
• Provides quick start and optimal car lighting
• Prevents acid damage
• Reduces resistance
• Reduces the risk of current leakage
• Configuously isolates contacts
• Prolongs battery life
• Has aiming jet

Presto battery lubrication is very easy to use - after all, the tool can be sprayed in any position. Shake the cylinder well and apply a thin layer of a protective spray to a dry and clean surface (if necessary, you can use the Presto universal cleaner and the Presto electrical contact cleaner). You can easily control the process of applying the product, because the composition has a bright blue color. This allows you to create a uniform coating and not to leave a single untreated area. Now you can be sure that the terminals of your battery are securely protected!

So, if you want your battery to serve for a long time, and its efficiency was maximum, the battery is necessary reliable protection. We told you about how to do it right, and now you can deal with the problem independently without resorting to expensive service of the car service. BUT proper tool will help make it easy and fast!

according to the site: rusautolack.ru

auto-on-line.ru.

Automotive Medicine in Computer Technology Service: Another way to clean contacts

Situation, familiar to everyone. You are watching your favorite movie. In the most interesting place, the TV screen goes out. Instead of pictures, Message: "Check the signal cable", "No Signal", "Check the power of the connected devices", etc. Diagnostics In this case, simple:

1. several times remove the cable from the connectors at both ends;
2. if not earned, try another cable;
3. if another cable does not help, try to find out at what end problem: connect the TV instead of a monitor to a PC; Connect the monitor from the PC to the media player, etc.

Suddenly it properly?

1. Rotate the device connector up;
2. Take the WD-40 cylinder, insert the tube into the sprayer from the kit, put the tube close to the connector and press the head. Splashing should be abundantly, do not be afraid if something falls inside the case. Nothing to do it;
3. Immediately, while the lubricant liquid has not leaked yet, we take the response part of the connector and insert / take it out several times in a row;
4. Repeat PP. 2-3 another time for loyalty;
5. Repeat PP. 2-4 for the second device and for the second end of the cable;

How it works?

Is it dangerous?

conclusions

Important addition

And, of course, it is not necessary to do this with devices that are under warranty - let the service center change everything to you. And "traces of foreign fluid" can serve as a basis for removal from warranty.

Tags:

• repair with your own hands
• contacts
• connectors

geektimes.ru.

Repair of auto chemicals

Any electrical contacts need special lubricants that improve contact that prevent sparkling and electrical erosion of contacting surfaces. Condensate on automotive wires is the usual matter, especially in winter. The moisture falls on the ignition distributor cover, the coil, switch, etc. All this can lead to a closure and failure of the entire ignition system. Equally, this applies to the battery. Finding on it, water accelerates the process of oxidation of the terminals and increases the likelihood of a self-discharge due to current leakage between the power terminals. Cleaning and protecting the battery terminals are included in the list of regulatory, most cars.

Installation and repair system exhaust

Modern systems of exhaust gases are complex in the device and very expensive. The tightness of the release systems can directly affect the efficiency of the engine. In addition, the acoustic comfort of the driver, passengers and all other participants in the driver is important. The exhaust system, when replacing it or partially, should be collected and mounted using special compositions for simplifying installation, proper centering of the system elements, its tightness and ease of subsequent dismantling.

Save filters from 2004 have been actively used to purify the exhaust gases of diesel engines. The particulate filter collects particles of soot, and when its resistance to the gas stream becomes significant (that is, the filter is filled with frequencies of the soot), the engine control system increases the temperature of the exhaust gases and burned (regeneration) of the filter - burning particles. In this way, diesel engine performs the norms of toxicity exhaust Euro-4 and 5. Long work on idling In traffic jams violates the regeneration process, and the filter can score the soot irreversibly. Replacing the filter costs very expensive, so it is much easier and cheaper to clean it.

Diesel Diesel Filter: Cleaning instead of repair saves your money! IN diesel carsthat most its working time spend on trips to short distances, the diesel filter does not have time to warm up operating temperatureTo get rid of the sahi particles accumulated in it. As a result, the particulate filter is partially clogged. In this case, the engine control unit seeks to turn on the automatic filter regeneration mode. This means that more fuel is injected into the engine to ensure a higher temperature of the exhaust gases. Due to higher temperatures of the exhaust gases, the combustion of the particulate particles is achieved. But in some situations, for example, the urban mode of movement or protracted traffic jams, the activation of the regeneration mode is not possible. In the case when this situation is repeated regularly, the particulate filter is gradually clogged. Accordingly, efficiency squeeze filter Reductantly decreases.

You can clean the particulate filter as with its dismantling from the car (for trucks) and without dismantling (for passenger cars).

Cleaning without removal occurs with a spray gun high pressure (Art. 6226) and Pro-Line of the curved probe (art. 7947) or Pro-Line direct probe (art. 7948). Depending on the type of car, it is necessary to provide access to the sump filter. In most cars, this should remove the pressure / temperature sensor from the particulate filter. The Pro-Line probe is entered into the resulting hole. Spraying the entire volume of the cleaner (1 liter) Pro-Line Diesel PartikelFilter Reiniger is carried out under a working pressure of 6-8 bar directly to the surface of the filter with short intervals of 5-10 seconds, with pauses between sputters at 5-10 seconds. For maximum efficiency, it is recommended to rotate the probe around its axis during the processing of the filter, as well as moving the probe back and forth.

Upon completion of cleaning, the filter should be processed by a washout of Pro-Line Diesel PartikelFilter Spulung (500 ml). Processing occurs using a druckbecherpistole spray gun (art. 6226) at the same intervals as when cleaning. At the same time, the soot dissolves and is distributed in the filter in such a way that then it can be burned by normal regeneration in the filter.

After returning the sensors, it is recommended to conduct a trial trip with a duration of at least 20 minutes in order to cause the regeneration process of the particulate filter. In the event of a refusal to automatically launch the regeneration process, contact the service center and to carry out the process of forced regeneration using special equipment.

High brake operating temperatures cause coking conventional universal lubricants, which can lead to braking mechanisms. So for maintenance and repair brake systems It is necessary to use special compositions with excellent high-temperature and anti-corrosion properties. Unfortunately, the creation of a fully universal lubricant / paste for brake mechanisms, simultaneously suitable for bookmarking for rubber antiques of brake cylinders, and for lubricants of the guide toes of calipers, and moreover with anti-slip properties (for the impregnation of "sandwich" anti-slip pads Pads), it is not possible. In this regard, three different types of car brake systems are applied:

1. Lubrication for bookmarking under the rubber boot. Prevents corrosion, makes it easier for the movement of the brake mechanism, prevents aging, cracking and damage to the rubber anther at low temperatures. The necessary heat resistance + 200 ° C with a periodic increase of up to + 250 ° C. Silicone (art. 3312) can be used as such a lubricant, and if the automaker does not welcome the use silicone lubricant, then Teflon Spray (Art. 3076) or Anti-Quietsch-Paste, anti-slip paste (art. 7656) (see "Lubricants and pasta").

2. Lubricant for guide caliper. Basic Requirements: Heat Resistance + 200 ° C with periodic increases up to + 250 ° C, good lubrication and high antisaded properties, compatibility with the materials of the dust of the guide fingers. It was under these requirements that the Anti-Quietsch-Paste lubricant was developed (art. 7656) (see the section "Lubricants and pastes").

What and how to clean contacts? Why, in general, do I need processing, protection and lubrication of contacts? Reply to these and other questions in this small article.

It so much that the electrical equipment system is slightly deprived of the part of the car owners and remember it only when either the next lamp went into the world forever extreme things, or when at the most inappropriate moment the starter does not respond to the rotation of the ignition key.

It is also worth noting that the fault of the faulty wiring happens more than all the fires of cars and occurs instantly and unpredictable.

Therefore, the electrical equipment system, like all other car systems, requires regular maintenance.

Moreover, in our time this procedure is even more important than before. This is explained by two reasons:

• cars have literally stuffed with electronics
• applying engine control systems

Well, with the first reason it is clear - the more wires, the more possible problems.

Why does the engine control system require high attention?

This is due to the use of lower voltage in the wiring of the engine control system and the use of pulse signals.

The thing is that the higher the voltage - the smaller the loss.

And what do we get? Previously, only 12V or, on some - 24V, was used in the electrical equipment. And now the ECU works mainly with a voltage of only 5V, and some sensors are completely with Milvoluts.

The ignition systems have become more powerful and are no longer controlled by non-banal closure / opening of contacts, and pulses of a certain duration defined by the control unit.

All these minimal chains should always have a minimal and constant resistance, and they work in constant temperature drops among the washesized and dusty air under the hood. Condensate, puddles on the roads, constant vibration and corrosion inevitably make their own adjustments to the system.

I can confidently say that the lion's share of all problems in the engine control system is related to the state of the wiring.

And the weakest link in this chain are all sorts of contacts and connecting blocks.

What to clean and protect contacts?

All contacts sooner or later begin to corrode and coated with other oxides, violating the system.

Therefore, the question arises logical - what and how to clean the contacts?

The mechanical way to clean the contacts is extremely not desirable. Yes, and in modern systems they do not fit to them. Folk methods with eraser, soda and the like do not give the desired result. And the use of these ancient methods in the 21st century I consider the struggle with windmills.

I, as a radio mechanic, have long used modern chemistry in solving these tasks. The same chemistry broke with success in the automotive industry.

From practice, both for me, two such funds deserve special attention.

Electrical Contact Lubrication

One of them is contact 61.

And the second - Liqui Moly Electronic-Spray

This is a means for cleaning, lubricating and protecting all sorts of electrical contacts as low voltage and high

The price tag for these funds is not quite budget - 200ml worth 180-200 UAH. (approximately 8 American money). But it is worth it, believe me. Moreover, it will be enough for him very and very long.

One processing is enough for a minimum for a year, so once spent time spent time will give you confidence for the whole year that in the most responsible moment the contacts in the wiring will not be submitted.

About Liqui Moly Electronic-Spray completely little information on the Internet and other sources. Therefore, reasonably many questions arise from many. One of the main - does this tool spend and whether there will be no closures and leakage currents?

I used it for a long time and I can say that it is quite the opposite, it prevents wandering currents, current leaks, heating contacts, sparking, as it improves contact, filling microscopic cracks and roughness on contacts.

I find it a use where you can - Contacts Avtogynitolets, connectors of all sorts of sensors, terminals, terminals of the battery, Contacts Lamps, Transition connectors, Switches and switches, Ignition system, etc. And it is only in the car! And in the everyday life and repair of all kinds of techniques of applications is no less.

There was a case with a car VAZ. The man asked to see where the signals of turns were missing. He spent all day to find a problem, replaced already stealless switches, and the problem was not solved.

In five minutes, I simply processed an alarm button with such a means and returned a flashing type of car even without replacing the button!

To use this spray is very simple. If the contacts are not very dirty, then the pixyat is completely a bit for contacts and connect the connector into place. If the contacts are dirty, then also pshikham and wait for the rapid reaction with the release of foam and connect everything back. If the contacts are very dirty, then pshikam, we are waiting for 10-15 minutes, we remove the mud or squeezed air and repeat the processing again. But the last option is extremely rare and usually everything is cleared from the first time.

There are means separately for cleaning, separately for lubrication and separately to protect and displace moisture. For example, a series of contact has a lot of them, sharpened under a certain task. Kontakt U - Purifier Purifier and Fluses, Kontakt S - Cleaner contacts from oxides and sulfur connections, Kontakt 60 - Anticorrosive Contact Protection, etc.

But the means of Kontakt 61 and Liqui Moly Electronic-Spray are positioned as universal. So to speak, the budget option.

The price and properties of them are almost the same, so you choose, solve yourself.

Attention! Be careful and always give a report to your actions. In this article, we are talking about a universal means to protect contacts with a slight cleaning effect! There are funds for sale for cleaning contacts. Whether in ignorance, or on negligence, but sellers do not warn that after the contact cleaner, the contacts must be protected to protect the contacts !!! Otherwise, the contacts are "green" and the processed surfaces are literally corrosive. Including the board in the engine control unit. The car becomes unsuitable for operation and requires expensive repairs. There are no little such cases. Be careful! I mentioned this in the video at the end of this article.

How to Clean Contacts

First of all, I advise you to handle the detonation sensor connector and connecting other low-voltage sensors.

Attention! I do not advise you to process the oxygen sensor connector in this way! The reasons are set forth in the article about

Battery terminals.

It is worth noting that for terminals there is a special lubricant in LiQui Moly Tubes "Batterie-Pol-Fett". But I only use spray.

Connecting Pad Wiring Harness

Well, of course, the connector of the ECU itself

Also, it is also necessary to pay attention to air and coolant sensors, contacts of the position of the camshaft position, the generator and the starter. Well, and necessarily

Separately, I want to stop on the elements of the ignition system.

Treatment of contacts of high-voltage wires and ignition coils must be performed at one first. As for prophylaxis, so and if there are failures and twisting in your car with a sharp press of gas pedal. The thing is that if there are problems in the ignition system, they will manifest themselves with sharp pedaling. This is due to the fact that several factors affect the magnitude of the breakdown voltage and one of them is pressure.

At idle, the pressure in the cylinders is not large, and at the time of opening the throttle it increases sharply, increasing the breakdown voltage on the electrodes of the candle. And if there is a defect in the ignition system, then it will definitely show its influence at this moment. Talk about it in one of the nearest articles.

So, one of these defects is often a slightly increased resistance of contacts in Wires and, especially, in low-voltage connectors of the ignition coils. And the usual multimeter will not show this.

And very often cleaning and protecting contacts helps to correct the situation. Business for three minutes, and the result will be 100% for the better!

Especially if the car is more than three years, then this procedure is simply obligatory.

First of all process low-voltage contacts ignition coil. Remove the block and apply spray

Next, lubricate high-voltage contacts. To do this, it is not necessary to pour the cleaner into the conclusions of the coil, and it is enough to apply the remedy on the BB of the wire, put it on the coil terminal and slightly twist there. It is also necessary to hold the wire with contact up so that the spray penetrate deeper - in the place of the connection of the tip with the wire itself

We also do the same on the other end of the wire

This procedure I advise you to do even on new wires and coils.

The same applies to other contacts and connections. If you put a new sensor or connect a new automagnetol - apply spray to contacts. After all, the main task of these funds is not only in cleaning, but also in the creation of a microscopic protective film on contacts. This film protects contact from moisture and air, preventing oxides and corrosion.

And do not forget about assembly blocks of fuses and relays. Pulled out relays, handled the connector and inserted back. Nothing cunning

After these uncomplicated procedures, you will definitely notice that the behavior of the car has changed for the better! And the engine control system, electrical equipment and the ignition system will work easier, which will turn into an enlarged resource of the entire engine as a whole.

Here are video about processing and protection of contacts

All world and smooth roads !!!

Cleaner contacts Allows not only to get rid of dirt and rust on the current parts of the car's electrical circuits, but also improve contacts, so that they did not overheat and ensure reliable operation of the electrical system of the machine. Some tools for cleaning contacts in the car also have a preventive effect so that the contacts processed by them in the future are not so subjected to pollution and oxidation.

The market presents a wide variety of electric contact cleaners. As a rule, they are implemented in two aggregate states - in the form of fluid and in the form of spray. The first type is suitable, rather, for point processing, while it is better to handle a large area, that is, several contacts at the same time. However, in the package to most sprays there is a thin tube, which also allows you to point to apply. In addition, it can be reached to hard-to-reach places.

As for the range, it is wide enough, but ten cleaners are most popular among domestic car owners. electronic contacts - WD-40 Specialist, Liqui Moly, Abro, Kontakt 60 and others. The following is a complete list and a detailed description with an indication, efficiency, operational features and prices.

Properties and Functions of Cleaners

When choosing one or another contact oxide cleaner in electrical scheme Car must define with what properties should be the optimal agent. Ideally, the cleaner must:

• effectively launder dirt and / or corrosion from electrical contacts, terminal and bolted connections, twists and other elements of the electric system of the car;
• do not dissolve the lacquer coating on chips;
• prevent the appearance of wandering currents, its leaks, sparking, heating contacts and improving their quality (usually it is achieved by the fact that the elements are included in the contact cleaners to fill the roughness on their damaged surfaces);
• do not contain in its composition silicone (or similar insulating compounds);
• to give a car enthusiast ease of use (here you need to choose between a liquid cleaner and aerosol);
• quickly dry after applying.

Often, automobile contact cleaners can be used in household electrical engineering. However, it is important to consider how much the tool is calculated, because in household outlets, the voltage is much higher than in the electrical system of the car!

The above properties provide him with the ability to effectively perform the functions assigned to it to which:

• cleaning electrical contacts from various contaminants, dust, dirt, aggressive chemical elements, and so on;
• protection of contact elements from corrosion (both from both water and chemical, which may occur under the influence of electrolytes, acids and other compounds);
• effective removal of oxide and sulfide deposits (i.e., corrosion caused by moisture and / or chemical reagents);
• reducing the electrical resistance of contact compounds, that is, preventing their overheating and load on their external isolation.

Modern manufacturers of contact cleaners offer their consumers as narrowly specialized (cleaning), and universal (which other protective properties are also equipped with cleaning properties.

Popular electric contact cleaners rating

Below is the rating of popular electric contact cleaners among domestic motorists. This list was not compiled on a commercial basis (our site does not promote any of the brands), but on objective assessment reviews and real tests specified in the list of funds that different time were posted on the Internet. If you had a positive or negative experience of using a cleaner represented or you can advise some other leave your comments.

Before applying any of those listed below or other cleaners on the elements of the machine's electrical system, and the more household network it is necessary to de-energize it !!!

Kontakt 60.

The Kontakt 60 cleaner is perhaps the most popular contact cleaner among domestic motorists, judging by numerous reviews and video reviews presented on the Internet. Positioned by the manufacturer as a contact cleaner and solvent of oxides. Can be used not only for cleaning car contactsBut also for use for processing electrical contacts in everyday life. Excellent copes with the cleansing of soothed, worn and / or contaminated contacts. In parallel with this, it provides a decrease in resistance in the places of contact compound, thereby increasing the quality of electricity and preventing the contact overheating (including the insulation melting).

It can be used for processing switches, sockets, forks, chips, cartridges, lamps, fuses, capacitors, terminal connections, and so on. Please note that Kontakt 60 CRC is an exceptionally cleaner. To protect the contact compound, you can use the composition of the same Kontakt 61 brand.

On the Internet you can find a lot including video reviews and reviews of this effective means. The cleaner really works well, therefore, according to our modest subjective opinion, he is worthy of the first place in this rating, and is uniquely recommended for buying ordinary car owners. Moreover, it concerns people on a permanent basis by the repair or prevention of electrical engineering.

Kontakt 60 contact cleaner is implemented in one of three packages - aerosol springs of volumes of 100, 200 and 400 ml. Their average prices as of autumn 2018 are 250, 500 and 800 rubles, respectively.

Liqui Moly Kontaktreiniger.

It is a professional contact cleaner from the world-famous German producer "Liquima Moli". It can be used not only in automotive techniques, but also for the repair and prevention of household electrical engineering. Cleans the contaminated contacts very effectively, removes oxides, reduces contact resistance. It does not include silicone! According to the instructions, the time of the cleaner is 5 ... 10 minutes (depends on the level of pollution). It is necessary to remove dirt / corrosion with a napkin or vet. Connect the cleaned contact to the operating electrical power can not earlier than 10 minutes after the completion of cleaning !!! Please note that Liqui Moly Kontaktreiniger is a highly specialized means and is intended only for cleaning contacts. Therefore, after its use, it is desirable to use the protective remedy like the widely popular Liqui Moly Elektronik-Spray.

Real tests and numerous positive reviews make it possible to assert that this cleaner really has high efficiency, so it is unequivocally recommended for purchase. Moreover, it is possible to use it not only in auto electronics, but also in everyday life. The ratio of prices, quality and packaging volume is quite decent.

The Liqui Moly Kontaktreiniger contact cleaner is realized in a 200 ml aerosol. Article of such packaging is 7510. Its average price for the above period is about 500 rubles.

ABRO EC-533

A very good and effective Cleaner Abro EC-533 is used to clean the electrical contacts and electronic board elements in the most different technique - automotive, computer, household, audio, video, and so on. Very quickly and effectively cleanses different types Pollution - dirt, fat, oil, corrosion deposits, oxides, and so on. Therefore, it can be considered a universal means that can be used including in consumer electronics. And considering its value for money, he deserves to be in the top of the rating.

Reviews about the use of the cleaner of the contacts "Abro" also, mostly positive. Included with packaging there is a thin tube that joins the nose and allows you to point to the right place. With its help, motorists treated a variety of elements of the machine electrical systems, and in most cases remained satisfied.

The ABRO EC-533-R contact cleaner is implemented in an aerosol cylinder with a volume of 163 ml. Its article is 10007. The price of this period is about 300 rubles.

Hi-Gear HG40

Hi-Gear HG40 is positioned as a universal contact cleaner. Effectively purifies electrical contacts, electronic elements and connectors from fat and oxide films, dust and other insulating contaminants. The manufacturer claims that this deoxide is ideal for cleaning the elements of the power supply system in the car, it can also be used to perform prophylactic work in audio, video and household appliances, including digital. The cleaner not only effectively removes oxides, but also displaces moisture, removes phosphate film, that is, is a versatile agent.

The advantages of this means to improve contact is that it evaporates quickly and provides long-term protection of contacts from moisture exposure (that is, oxidation). It can also be used to degrease contact surfaces. After applying this tool, the specific resistance of the electrical contact is reduced. Safe for plastic and rubber parts. In the kit there is a special tube-nozzle, which allows you to apply a tool point and in hard-to-reach places.

Tests showed nice results The work of this cleaner. It copes well with the removal of dirt and corrosion from electrical contacts. Therefore, car owners can safely buy in their set of automotive chemistry.

The Hi-Gear HG40 cleaner is implemented in a sprinkler with a volume of 284 ml. Article of goods - HG5506. The average price is about 300 rubles.

WD-40 Specialist

The means called WD-40 Specialist is positioned as a quick-drying contact cleaner. It is a very popular tool, both in our country and abroad. It is a universal cleaner who is able to remove dirt, dust, naiga, scale, flux, condensate and just trash from electrical and electronic equipment. In addition, with the help of this cleaner, you can degrease rubber, plastic and metal surfaces. Its composition does not conduct an electric current. The advantage is its rapid drying. Included there is a so-called "smart" tube, allowing to point to point to hard-to-reach places.

Internet reviews make it possible to argue that the WD-40 contact cleaner is used by domestic car owners everywhere. Therefore, it is unequivocally recommended for purchase, especially since it can be used in everyday life.

It is implemented in two types of packages - a volume of 200 ml and 400 ml. The first package price is 250 rubles. Article of the second - 70368, and its price is 520 rubles.

Kerry KR-913

Kerry KR-913's aerosol contact cleaner is an inexpensive and effective tool that can be used not only to clean the vehicle electrical system, but also for repairing various household and office equipment - computers, audio and video equipment, various electrical appliances and devices. The means effectively displaces moisture and removes corrosion, oil, fat, dirt and other trash. The cleaner is safe for the paintwork of the car, as well as for rubber and plastic parts. When it evaporates, it does not leave on the surface of the tracks. Included with a balloon there is an extension tube.

According to the instructions, you need to give the medium about 3 ... 5 minutes to absorb, after which it is possible to remove with a vein or napkin. The electrical appliance can be connected to the network after 10 minutes after drying the liquid fractions of the cleaner. Real tests Indicators are quite high efficiency, therefore, we can recommend to buy.

The Kerry KR-913 cleaner is implemented in a 335 ml aerosol cartridge with a tube-extension. Article - 31029. The price is about 150 rubles.

Wurth.

The Swiss contact cleaner WURTH is designed to work with different electrical appliances. It removes the oxide and sulfide layers, resin, oil, dirt, thereby improving the quality of electrical contact. The cleaner does not contain halogens and is not aggressive to conventional structural materials. It can be used not only for cleaning the vehicle electrical system, but also for working with various household and industrial equipment.

Car enthusiasts, which at different times enjoyed this cleaner of contacts, marked its sufficiently high efficiency. It removes corrosion well, including those caused by chemical reagents. Therefore, the tool is recommended for purchase. From the shortcomings of the cleaner, it is possible to note that a bit high compared to the analog prices.

It is implemented in a 200 ml balloon. Article of such a package - 089360. Its price is about 700 rubles.

Mannol Contact Cleaner 9893

Mannol Contact Cleaner is a special tool for rapid and efficient cleaning and degreasing contaminated and corrosive electrical contacts of any types. Its composition is quite effective and allows you to quickly get rid of oxides, dirt and lubricant existing on the surface of electrical contacts. It is neutrally related to plastics, rubber and lacquer coatings. It can be used not only in the car, but also for cleaning various electrical contacts, plug connections, terminals, ignition distribution devices, switches, relays, battery contacts, audio equipment and other things. Before use, the cylinder needs to shake. After applying, it will evaporate for at least 15 minutes. Can be used at temperatures up to + 50 ° C. Store in heated room, avoid long stay under the right sunlight.

There is a good effectiveness of this fund. It will not be superfluous in the garage of each car owner. However, in some cases (if pollution has been very much in a surface), it is necessary to apply a means of two or three times, which is not always convenient and profitable.

MANNOL CONTACT CLEANER 9893 electrocontacts cleaner is implemented in an aerosol can with a volume of 450 ml. Its articula - 9893. The price is about 200 rubles.

Astrohim AC-432

Cleaner of electrical contacts Astrohim AC-432 is designed to clean the electrical connections from corrosion, oxides, fuel and oil sediments, dirt and other garbage on their surfaces. Using the cleaner allows you to significantly improve the quality of the electrical contact. It is distinguished by the fact that its elements of the liquid fraction will evaporate very quickly. Absolutely safe for vinyl, rubber, plastic and other similar elements. The electric contact cleaner does not include toxic perchlorethylene.

Experimental application has shown the average efficiency of this fund. He copes well with medium pollution complexity, but often problems arise with difficult. But in any case, the cleaner can be used two or three times in order to remove corrosion or dirt. He has a very significant advantage - low price. Therefore, it can be recommended for the purchase - it will definitely not be for contact compounds.

It is implemented in a chamber of 335 ml. Article of this product - AC432. Its price is 150 rubles.

Loctite SF 7039.

The Loctite SF 7039 (previously known simply as Loctite 7039) is positioned by the manufacturer as a contact spray. It is designed to clean the electrical contacts that are exposed to moisture, chemical reagents and just mud. However, it cannot be used on contacts having a varnish coating! In addition to the directly cleansing effect, this tool has a protective property, that is, after drying it protects the surface of electrical contacts from repeated formation on them corrosion or contamination. It does not have a negative impact on plastic coating. Operating temperature range - from -30 ° C to + 50 ° C.

Real tests have shown the average efficiency of this cleaner. It shows well when removing corrosion and dirt. However, in some cases it must be used two or three times. With relatively good effectiveness, this agent has a significant disadvantage, namely, a high price.

The Loctite SF 7039 cleaner is implemented in an aerosol can with a volume of 400 ml. Article of such a balloon - 303145. Packaging price is about 1,700 rubles.

What and how to process in the car electrical system

Now, when it became clear what means it is better to use to eliminate pollution and corrosion in places of electrical connections, it makes sense to discuss the question of which distress places in the car must be processed with their help. In this case, the information has a recommendatory nature, and the fact of processing or not processing depends on the state of the contact. That is, it is just a preventive measure. So, with the help of the cleaner contacts from oxidation makes sense to process:

• contacts Avtogynitola;
• sensor connectors (detonation, DDA in the intake manifold, air temperature and coolant);
• limit switches;
• rechargeable battery terminals;
• contact connections of lamps (external and internal);
• transition connectors;
• switches / switches;
• throttle knob;
• connectors and contacts nozzles;
• connection block of wiring harness;
• absorber valve contacts;
• fuse connectors and relays;
• connectors directly electronic block Engine management (ECU).

Mandatory in preventive purposes it is necessary to process contacts in the ignition system, especially if problems are observed in its work. It is processed both low-voltage and high-voltage contacts.

Cannot handle contact cleaner oxygen sensor connector!

The processing of electrical contacts in this case should be performed in strict accordance with the instructions given or on the packaging of information. Be sure to read it to the use of the fund, and not after! However, in most cases, the traditional algorithm - it is necessary to apply a certain amount of cleaning agent on polluted contact, and then wait for a short time in order to give a substance to absorb. Further, when a chemical reaction occurs and dirt / corrosion, it is possible to remove them with a vein, napkins or tassels from the surface of the electrical contact.

In particularly launched cases (or when the cleaning agent is ineffective), the situation is possible when it is necessary to process the electrical contacts two, and then three times. If dirt / corrosion on contacts are a bit, then instead of the vet, you can use the air compressor, with which you can simply blow mud deposits.

Often, before using a special cleaning agent, it makes sense to perform a mechanical processing of an oxidized (contaminated) surface. You can make it using sandpaper, brushes or other similar tools. This will save the consumption of the contact cleaner, and therefore money. However, remember that it is possible to do this only if you are sure that you do not harm the electric contact or another element of the scheme.

Contact Purifier do-it-yourself

The medium-listed means although they help to quickly and efficiently get rid of dirt and / or corrosion on electrical contacts, thereby improving their conductivity, but they all have a significant drawback - a relatively high price. Accordingly, it makes no sense to buy for laundering a pair of three distressed places. Instead, it is better to take advantage of one of the "folk" methods and means that there is actually a lot. We give the most common and effective of them.

Recipe number one. It takes 250 ml of aqueous concentrated ammonia and 750 ml of methanol (pay attention, methanol is harmful to the human body) or ethyl alcohol, which is denatured by gasoline. You need to mix these two substances in a glass vessel, which has a hermetic lid. The composition can be used to clean electrical contacts, and it is necessary to store it in a closed form, away from heat sources and not under the influence of sunlight.

Recipe number two. About 20 ... 50 ml of medical vaseline oil should be dissolved in 950 ml of extraction gasoline, after which mix well until complete dissolution. The composition can also be used for cleaning. Store similarly, away from heat sources and sun rays.

Even for cleaning contacts, you can use the following means ...

Cleaning paste "Asidol" (one of the species)

Eraser. With the help of an ordinary stationery, especially if its composition has small-cell elements. However, for deep contaminants, this method will not fit.

Solution food Soda . Its composition can be prepared from the proportion of 0.5 liters of water 1 ... 2 tablespoons of soda. With the help of the resulting solution, you can also get rid of simple contaminants (from complex or hard).

Lemon juice. It is enough to drop a few drops of this composition on the oxidized contact and wait a couple of minutes. After that, it is quite possible to clean almost shine.

Alcohol. For cleaning, you can use technical, medical or ammonia alcohol. A fairly effective means that can be used paired with others.

Cleaning paste "Asidol". It is intended for cleaning various household items "to shine". Therefore, it can be used for cleaning electrical contacts.

Sandpaper. It is better to use an fine-grained option in order not to damage the contacts.

The listed "folk" agents usually show good efficiency in the general case, if they interact with the pollution of the weak or average levels. Unfortunately, with multi-layer oxides, they can be copfer, as a rule, unable. Therefore, in difficult cases, it makes sense to take advantage of a professional. But in order to save money, you can first try to clean the contacts with undergraduate means, and if it does not help - use the factory cleaners listed above the factory cleaners.

Contact heard the edge of the ear if you can a little more about the use

In liquids Kontakt.

Kontakt 60.

Purpose:

The drug provides regeneration of corrosive and highly contaminated contacts. Contacts treated with this drug ensure the reliability of contacting even at the low strength of their clips.

Properties:

Kontakt 60, dissolving oxide and contamination, effectively reduces the electrical resistance of contacts, increasing their durability. Reduces friction and manifests an anti-corrosion action. Does not carry out electric current, counteracts the flow of "wandering" currents. Chemically neutral with respect to popular plastics, metals, etc.

Application:

Disable the preparation-processed device from the power supply. Apply the drug to contacts and wait about 15 minutes. Before that, from their surfaces using the drug Kontakt WL, it is recommended to remove the residues of the oxides and protect the drug Kontakt 61

It is used to clean the switches, connectors and connectors, the panels of chip, fuse holders, etc.

100ml., 200ml., 400ml.

Color red

Point of ignition<0°C

Density at 20 ° C 0.76 g / cm3

Kontakt WL.

Purpose:

The contact of WL allows you to remove dirt, ockered oils and lubricants, rosin and other contamination from the surfaces of nodes and parts. Not included in the reaction with popular structural materials.

Properties:

Kontakt Wl cleans the surfaces of the contacts subjected to Kontakt 60 removes dissolved oxides from their surfaces and the most importantly - corrosion products. For a long time protects against repeated occurrence of corrosion sections

Application:

Do not apply for cleaning devices under voltage. At the end of the sink, leave the devices about 15 minutes to evaporate the volatile solvents. Used for relays, engine switches, channel selectors, printed circuit boards, electric motors

Packaging in aerosol cylinders:

200ml., 400ml.

Color colorless

Point of ignition<0°C

Density at 20 ° C 0.77 g / cm3

Evaporation rate 10 (ether \u003d 1)

Kontakt 61.

Purpose:

Kontakt 61 Specially designed cleaner, lubricating and anti-corrosion agent, intended for processing and protecting new non-oxidized electrical contacts and moving electromechanical parts or contacts subjected to cleansing effects of drugs Kontakt 60. and Kontakt WL

Properties:

The drug forms a thin micropic film on the treated surfaces, which prevents the appearance of corrosion and at the same time providing high quality contact. The drug is neutral to other structural materials, eliminates the possibility of leakage currents, has anti-corrosion properties, is a good lubricant. Provides excellent electrical conductivity, protects against erasing and sintering contact sites and engines. It has antifriction properties, so the abrasive effect between contact groups is much reduced, which in its ancient it increases the contact surfaces.

Application:

Disable the mechanism from the power supply. The existing tube is fixed in the spray head. Spray the clean surface. In case of large contaminants, repeat operation. Excess means with pollution erase. It is used in production and during service work. It can perform the role of light lubricant for electromechanical drive devices in the office equipment.

Packaging in aerosol cylinders:

200ml., 400ml.

Blue color

Density at 20 ° C 0.76 g / cm3

Resistance temperature up to 80 ° C

Unlike the silver oxide of copper carboxides (copper patina - chemicals formed on copper, brass, bronze surfaces in air involving carbon dioxide and water, always present in the air of residential premises) - very strong (mechanically, naturally: mechanical and chemical Strength - concepts from different songs) and abrasion is very tight, and at the same time have the ability to quickly increase again.

From all this: a new switch, even a fair time that has lost in stock, with absolutely black silver plated contacts will work perfectly after two-three scrollings when silver patina will be erased. The switch, even with a slightly oxidized copper contacts, can be made to work quite a while, and the "cleaning" scrolling is not to count very much - the fighter's arm is tired ...

So, even the channel switches with the lamellas and fifasms of the "dies" contacts cannot be cleaned with abrasives: even in the worst case, they can provide an unstable, but good contact for silver at the edges of the worn field. The mechanical cleaning "demolides" silvering is completely, even with a sparing approach, washing silver at the borders of wear. Actually, it concerns not only PTK, but also all switches with silver plated contacts.

Although, in general, (I hope), everyone understood that there was still an exclusion of abrasive cleaning - this, after all, Schutek humor, for more efficient methods to achieve at least a temporary improvement in the work of the worn switch did not exist in those times and is unlikely to exist now. True, abrasive eraser is, of course, a very cruel tool. In this case, I used a piece of paper, moistened with kerosene and slightly sideways on both sides "passengers to edit razors" (you can paste ga) - they have abrasiveness (grain size) any less than that of the gum. In addition, it is not necessary to try to clear the contacts to the "metal squeal" entirely - it is necessary to clean the "patch" of the dice and the contact zone of the lamellas. This will exclude or at least reduce silver wear on the adjacent areas. So I did, clamping a strip between the drum and spring lamellas and turning the drum several times. Then, stopping the drum on an inactive channel, pulled out the strip - thus the slats were cleaned. After that, the Polish Aerosol "Kontakt" picked on the Vatka (unfortunately, I don't completely remember - I didn't yet remember - it was supplied for the same goals with a zipa for printing machines "Consul", provided lubricant and protection against the oxidation of the contacts of the coder machine), wiping through this vat The drum (before removing the remnants of the abrasive-metal dirt after cleaning the contacts), and a couple more times turned the switch (to cover the "contact" lamellae). And anyway, even with such a "scientific" approach, if there are obvious "tracks" to copper on the lamellas, it did not make sense to ensure the operation of the switch for more than two months (and even then with the active use of the switch). A little bit of improving the operation of the switch helped the lung offset of the Welk lamellas so that the five-acting were in contact with the non-stitched silver coating. Unfortunately, "Rotate" the pits themselves are impossible, and they are contacted with the lamellas already with copper, so it's still a warranty, "as for the new" to give it impossible. By the mind, the worn switcher had to be stupidly changed.

By the way, both silver oxides and copper carboxides are perfectly soluble with ammonia solution (ammonia alcohol) and compositions for cleaning the jeweler with its content, however, the use of these compositions and pure ammonic alcohol for cleaning contacts - sabotage is even greater than cleaning abrasives (five years of execution Without correspondence, every day is mortally). Explain why? Bukofoff will be no less ...