For which lithing m.aSLO in rear axle gearbox? Timely pouring of oil fluid into the rear axle reducer is necessary to improve the interaction of the parts of the unit, to extend their operational period. Customly automotive knots break due to wear, poor things.

Prevention of faults makes it possible to prevent various problems in the aggregate. It is necessary to understand how the oil change in the handout and the rear gearbox passes, be able to choose which oil pour into the rear axle gearbox.

How does the rear axle work, why is it wearing?

The rear axle reducer (dispensing box) is a node combined with each other, transmitting torque from the power unit to the wheels. The gearbox is subjected to different loads, the degree of which depends on the number of revolutions. In view of this, it appears friction, destructively affecting its condition. In order to compensate for this effect, a special lubricant is used, mitigating moving parts and ensuring their integrity. Change the oil in the gearbox is an important procedure that cannot be neglected.

You need to change the oil in the back bridge about once every thirty-five thousand kilometers. This replacement frequency is recommended by known automakers. There are certain signs, when discovering which it is necessary to immediately replace the consumility (after determining which oil pour into the rear axle reducer). They are counted:

• reducing the number of cars;
• the appearance of gray dust in lubrication;
• changes with a grade of the consumator.

The effect of malicious factors on the rear axle of the machine

A decrease in the amount of lubrication may be due to the deterioration of its technical characteristics leading to a change in the viscous index. Also, the level of consuming may decrease due to ordinary leaks arising due to increased loads.

The appearance of gray dust is a sign of the burnout of the details. The outer layer of spare parts is erased over time, falls precipitated. Finding into the car, the precipitate begins to circulate throughout the lubricant complex. If it turns out to be on an important detail, her holes can be partially blocked. This can lead to breakage. Pouring fresh lubricant into the gearbox when identifying this problem, it is necessary immediately. If you find metal particles in the car, chips, it means you need to repair the motor and completely replace damaged parts.

Changing the shade of petroleum products with gold on black is considered a sign that the lubricant is functionally worn out. Prolonged use, high loads, dyed - all this gradually leads to a deterioration in the indicators of the car. The molecular structure of the petroleum product is disturbed. Similar oil is unable to lubricate the parts.

If you have found at least one of the above signs - immediately replace the oil fluid.You can resort to car service. His staff in a short time will replace the car in the transfer box. You will need only to pay them for work. Unless independently change the petroleum product, you can safely save (subject to the correctness of the replacement). However, changing lubricant, it is difficult to allow such a mistake that could completely remove the vehicle. The most dangerous thing that can happen is to get the burn with a worn oil liquid. If you care caution, this will not happen. You can save your money if you know how to pour oil into the rear axle.

Machine shift algorithm in rear axle gearbox

How is the replacement of oil in the rear axle gearbox? The algorithm is:

Now you know how to replace the oil in the rear bridge VAZ (and any other car). Replacing the oil in the rear gearbox is a fairly simple procedure.

What machine to choose?

What oil to fill? It is possible to apply both mineral water and synthetics. Thanks to its own composition, synthetic is better thantening wear than the mineral water made by oil processing that must be changed. The plus of mineral oil is considered its rather small price. Special additives are added to the synthetics, which increase the operational period of a similar car several times. However, the cost of synthetic consumables, especially from well-known manufacturers, is quite large.

Before deciding which oil pour into a rear axle reducer, remember that there are also semi-synthetic oil products. They are not so expensive as synthetic, while have sufficiently high technical characteristics (unchanged viscosity index, excellent lubrication indicators). No wonder the semi-synthetic was so popular among the many car owners in the territory of the Russian Federation.

Since the distribution contains rubbing elements, over time, wear inevitably appear in it. If it is timely not to replace the oil in a transfer box, its resource is reduced. Oil loses performance, and small particles increase the wear of the gear.

How often change

There are several different types of dispensing boxes, and depending on the type of mechanism, the frequency of replacement in them can differ significantly. Usually this information is contained in the technical documentation for the car and varies in the range from 50 to 100,000 mileage kilometers.

In addition, the terms of operation affect the term. Distribution of a car that travels on public roads is experiencing much less loads than installed on the car constantly moving off-road.

How to choose

Two types of liquid poured into the distribution: transmission oil or ATF liquid. On cars with automatic transmission, ATF is usually poured into a dispensing box, with a transmission transmission. At the same time, often fluids should coincide, or be completely compatible.

It is determined by the fact that usually the connection of the disassemble and the box is made by a single shaft, or one is attached to the case of another. When mixing liquids, this will avoid the formation of emulsion, foaming and other side effects.

For most modern cars having a distribution, the manufacturer recommends using transmission oils of class GL-5. They protect the hypoid transmissions well, designed to work in the most loaded mechanisms and contain contamaged additives.

Not the last role is played by the viscous characteristics of oils. We will analyze the value of numbers on the example of oil 80W90:

• 80 - viscosity at low temperatures
• W - All-season
• 90 - Viscosity at high temperatures

If ATF is used, it is better to pour the original liquid recommended by the manufacturer or an analog that has appropriate tolerances.

What and how much to fill

The given table will allow you to choose oil on the car brand and find out how much it is required.

Car	Butter	Volume (l)
Audi.
audi Q7 (Audi Q7)	G052162a2, 4014835712317 Ravenol ATF 5/4 HP	0,85
BMW.
bMW X5 E53 (BMW X5 E53)	BMW 83 22 9 407 858 "ATF D-III, PBX-500 83220397244	1
bMW X5 E70 (BMW X5 E70)	83 22 0 397 244, Multi DCTF, Motylgear 75W80	1
bMW x3 E83 (BMW X3 E83)	83229407858	1
bMW X3 F25 (BMW X3 F25)	BMW VERTEILERGETRIEBE 4WD TF 0870 (83 22 0 397 244)	0,6
GAS
gAZ 66.	TAP-15B, TSP-15K, TSP-MGIP, 80W90 GL-4	1,5
Great Wall
great Wall Hover (Great Wall Hover)	DEXRON III.	1,6
Jeep.
Jeep Grand Cherokee (Jeep Grand Cherokee)	Mopar 05016796AC.	2
Infiniti.
Infinity FX35 (Infiniti FX35)	Nissan Matic D - Ke908-99931	2
Kamaz
kAMAZ 43118.	TSP-15K.	5,4
Kia.
kia Sorento (Kia Sorento)	Dexron II, III (IDEMITSU MULTI ATF, GT ATF TYPE MULTI VEHICLE IV)	2
kia Sorento 2 (Kia Sorento 2)	Castrol Syntrax Universal Plus 75W90, Ravenol TGO 75W90	0,6
kia Sportage 1 (Kia Sportage 1)	API GL-5 SAE 75W-90	1
kia Sportage 2 (Kia Sportage 2)	75W90 GL-5 (Mobil Mobilube HD 75W90 GL-5, Castrol 4008177071768 "SYNTRAX LONGLIFE 75W-90)	0,8
kia Sportage 3 (Kia Sportage 3)	HYPOID GEAR OIL API GL-5, SAE 75W / 90	0,6
kia Sorento Tod	Shell Spirax S4 ATF HDX, Mobil ATF LT 71141	2
kia Sorento PART-TIME	ATF DEXRON III	2
Range Rover.
land Rover Discovery 3 (Range Rover Discovery 3)	SAF-XO 75W-90, SYNTRAX LONGLIFE 75W-90	1,5
land Rover Discovery 4 (Range Rover Discovery 4)	TL7300-Shell TF0753
land Rover Freilender 2 (Range Rover Freelander 2)	API GL5, SAE 90
Land Rover Defender (Land Rover Defender)	75W-140 GL-5	2,3
Lexus.
Lexus RX300 / 330 (Lexus RX300 / 330)	85W-90, Castrol TAF-X 75W-90	1
Mercedes.
Mercedes GLK (Mercedes-Benz Glk-Class)	distribution in the box
mercedes ML 163 (Mercedes ML 163)	236.13 # A001989230310, Motul Multi ATF	2
Mercedes W163 (Mercedes-Benz W163)	A 001 989 21 03 10	1,5
Mercedes W164 (Mercedes-Benz W164)	A0019894503.	0,5
Mazda.
mazda CX 5 (Mazda CX 5)	GL-5 80W-90, Mobil Mobilube HD 80W-90 GL-5	0,5
mazda CX 7 (Mazda CX 7)	80W90 API GL-4 / GL-5	2
Mitsubishi.
mitsubishi Pajero Sport (Mitsubishi Pajero Sport)	Castrol TAF-X 75W-90	3
mitsubishi Outlander 3, Chl (Mitsubishi Outlander 3, XL)	80W90 GL-5, 75W90 GL-5	0,5
mitsubishi L200 (Mitsubishi L200)	GL-3 75W-85, GL-4 75W-85	2,5
mitsubishi Pajero 2 (Mitsubishi Pajero 2)	75W85 GL4.	2,8
mitsubishi Pajero 3 (Mitsubishi Pajero 3)	GL-5 80W-90, Castrol Syntrans TRANSAXLE 75W-90	3
mitsubishi Pajero 4 (Mitsubishi Pajero 4)	ENEOS GEAR GL-5 75W-90	2,8
mitsubishi Montero Sport (Mitsubishi Montero Sport)	Castrol TAF-X 75W-90	3
Mitsubishi Delica (Mitsubishi Delica)	75W90 GL-4	1,6
Niva
niva 2121/21213/21214 (VAZ 2121/21213/21214)	LUKOIL TM-5 (75W-90, 80W-90, 85W-90), TNK TRANS GIPOID (80W-90), Shell Transaxle Oil (75W-90)	0,8
Nissan.
nissan X Trail T31 (Nissan X Trail T31)	Nissan Differential Fluid (Ke907-99932), Castrol Syntrax Universal Plus 75W90 GL-4 / GL-5	0,35
nissan Qashqai (Nissan Qashqai)	Nissan Diffirential Fluid SAE 80W-90 API GL-5	0,4
Nissan Patfainder R51 (Nissan Pathfinder R51)	Nissan Matic-D, Dexron III	2,6
nissan Terrano (Nissan Terrano)	SAE75W90 GL-4, GL-5	2
nissan Teana (Nissan Teana)	GL-5 80W90	0,38
nissan Murano Z51 (Nissan Murano Z51)	GENUINE NISSAN DIFFERENTIAL OIL HYPOID SUPERGL-5 80W-90	0,3
Opel
opel Antara (Opel Antara)	GL-5 75W90	0,8
Opel Mokka (Opel Mokka)	GM 93165693, Mobilube 1 SHC 75W-90, Motul Gear 300 75W-90	1
Porsche.
Porsche Cayenne (Porsche Cayenne) Hang-on	Shell TF0870, Ravenol TRANSFER FLUID TF-0870	0,9
Porsche Cayenne (Porsche Cayenne) Torsen	Castrol Bot 850, Burmah Bot 850	0,9
Renault.
renault Duster 2.0 4x4 (Renault Duster 2.0 4x4)	ELF TRANSELF TYPE B 80W90	0,75
renault Koleos (Renault Koleos)	ELF TRANSELF TYPE B 80W-90, TOTAL TRANSMISSION RS FE 80W-90	1,5
Suzuki.
Suzuki Escudo (Suzuki Escudo)	SAE 75W-90, 80W-90 API GL-4	1,7
suzuki Grand Vitara (Suzuki Grand Vitara)	75W-90 API GL-4, SAE 80W-90 API GL-5	1,6
suzuki CX4 (Suzuki CX4)	TAF-X.	0,6
SsangYong.
Ssangyong Kyron (SsangYong Kyron) automatic transmission	DEXRON IID, III	1,3
Ssangyong Kyron (SsangYong Kyron) MCPP	80W90 API GL-4 / GL-5	1,4
Subaru.
subaru Forester (Subaru Forester)	no disassemble, lowering the transmission in the box
Toyota.
Toyota Hilux (Toyota Hilux)	API GL3 75W-90	1
toyota Land Cruiser Prado 120/150/200 (Toyota Land Cruiser Prado 120/150/200)	GL-5 75W90 Toyota Gear Oil	1,4
toyota Rav 4 (Toyota RAV 4)	Toyota Synthetic Gear Oil API GL4 / GL5, SAE 75W-90
toyota Highlander (Toyota Highlander)	LT 75W-85 GL-5 Toyota	0,5
UAZ
uAZ Patriot	SAE 75W / 90 according to API GL-3, TSP-15K, TAP-15B, TAD-17I	0,7
uAZ 469.	TAD-17, 80W90 GL-5, 85W90 GL-5	0,7
uAZ Hunter	SAE 75W / 90 by API GL-3	0,7
Ural
ural 4320.	TSP-15K.	3,5
Ford
Ford Explorer 2013 (Ford Explorer 2013)	Motul 75W140.	0,4
ford Kuga (Ford Kuga)	SAE 75W-90	0,5
ford Kuga 2 (Ford Kuga 2)	SAE 75W140.	0,4
ford Maverick (Ford Maverick)	SAE 75W140.	2
Ford Explorer 5 (Ford Explorer 5)	SAE 75W140 (Castrol Syntrax Limited Slip 75W140)	0,4
Volkswagen.
volkswagen Amarok (Volkswagen Amarok)	G052533A2, Castrol TRANSMAX Z	1,25
volkswagen Touareg (Volkswagen Touareg)	VAG G052515A2, CASTROL TRANSMAX Z	0,85
volkswagen Tiguan (Volkswagen Tiguan)	G 052 145 S2	1
Hyundai.
hyundai IX35 (Hyundai IX35)	75W90.	1
Hyundai Santa Fe 2.7 (Hyundai Santa Fe 2.7)	Shell Spirax AXME 75W90	1
Hyundai Tucson (Hyundai Tucson)	80W90 GL-4 / GL-5 (Shell Spirax S3 AX 80W-90), 75W90 GL-5 (Sastrol Syntrax Universal 75W-90)	0,8
Honda.
honda CR-V)	distribution combined with gearbox
Chevrolet.
Chevrolet Niva (Chevrolet Niva)	80W-90 GL-4, 75W-90	0,8
Chevrolet Captiva (Chevrolet Captiva)	GL-5 75W90	0,8
Chevrolet Tahoe (Chevrolet Tahoe)	Dexron VI (GM Dexron 6, SPIRAX S3 ATF MD3, Chevron ATF MD3, AC Delco Auto Trak II)	2
Chevrolet TrailBlazer (Chevrolet Trailblazer)	GM AUTO-TRAK II	2

Check Level

Most cars, to check the oil level in the distribution, viewing windows are not provided. Level control and replacement is carried out through the bay hole.

To check, you need to install the car on a flat surface and unscrew the bolt bolt or the control, if any. Usually they are completed under four or hexagon, or under the wrench.


Normal is the level of just below the filling / control opening.

The need for replacement is determined by the fence of a small amount of oil. It is possible to do this with a syringe, with a flexible tube dressed. Black, muddy, with the traces of production to be replaced.

How to change

The replacement procedure itself is simple, but it is often complicated by the fact that access to the filling opening is difficult. Also required lift, observation pit or overpass.

Some motorists independently make a drain hole in the distribution in order to make it easier to make the procedure for a complete replacement of oil. To do this, the hole is drilled at the bottom point under the plug and thread rolls.

You will need:

1. Special syringe for pumping technical fluids (cost of 500-800 rubles). You can use medical, but because of its small volume, the replacement process will significantly delay. What is more expensive - time or money, you decide.
2. Oil for dispensing (transmission / ATF) recommended by the manufacturer or having the appropriate specification.
3. Gasket sealant, degreasing fluid.

So that the dirt does not get inside the dispersion, you should clean the surface before unscrew the plugs.

There is a drain hole

If your car is equipped with a drain plug, you need to unscrew the bolt and wait for the total leakage of the oil. Magnet on the plug should be cleaned of wear products. Decrease the drain hole and cork, apply the sealant layer and screw the plug into place.

With the help of a syringe, fill with oil distribution until it is cleaned through the edge of the filling hole, then wrap the cork on the sealant.

No drain

In this case, all operations are made through the bay hole. The tube of the syringe and the oil is injected in the maximum possible amount. The fill procedure of the new oil is no different from the above.

So that your car worked stably, it requires constant care and service. Of all the technical procedures, the replacement of oil in the rear gearbox is not the most frequent, but extremely important. Reducer is a special gear mechanism connecting two semi-axes, which is responsible for converting the engine power and for its transmission to the wheels. It allows wheels to rotate with different frequency. Despite the complex gearbox, the replacement of oil in the gearbox is performed simply in the presence of experience and skills.

How often do you need to change the oil in the gearbox?

How often does the oil change in the rear gearbox? It all depends on the car model and operating conditions. Experienced auto mechanics will say that under standard conditions of operation, the replacement of oil in the gearbox is necessary on average every 40-60 thousand km of mileage.

With the intensive operation of the vehicle with time in the gearbox crankcase, slow oxidation and the decomposition of the oiled oil occurs. The reason for this phenomenon is to enter the heated air in the not enough sealed system. A negative effect has an inevitable decrease in oil viscosity during operation.

Automobile gearbox - element of transmission taking torque from the crankshaft and transmitting it to the inter-axis differential. Depending on the type of transmission, the front axle integrated gearboxes (on the front-wheelwater models) and the rear axle (on the rear-wheel drive) differ integrated into the transmissions. In all-wheel drive models, respectively, there are both gearboxes. The transmission of torque through the gearbox is carried out by means of gear rotating with a certain frequency. To prevent their abrasion as a result of friction in the gearbox, transmission oil is used.

When to change

There is no unambiguous period to replace oil in the gearbox. It is accepted to fill a new oil into the node at the same way when other transmission elements are served and the remaining transmission fluids are changing. A standard period for servicing the transmission is a mark of 45 thousand km of run, then every 60 thousand run, or every 2 years of operation of the car.

With intensive operation, the period to replace oil in the gearbox is reduced to 30-35 thousand km of mileage. These conditions include:

• transportation of heavy loads, towing trailers or transport on the cable;
• frequent riding in urban mode (Start - Stop);
• operation in adverse conditions (off-road, under the conditions of snow-covered roads, etc.).

In manuals on the use of some models, it is indicated that the first replacement of oil in the gearbox must be made after 1-2 thousand km of mileage. The fact is that at this stage the vests of the car are tired, for which the increased friction and the formation of wear products are characteristic.

How to check the level and quality of oil

During the operation of the car, the oil in the gearbox loses its viscosity, and in the future oxidative processes occur as a result of heated air from the insufficient tightness of the system. As a result, oil decomposes and ceases to perform lubricating functions, there is an intensive wear of gear gears and overheating gear.

Checking the quality and oil level is made on the overpass or observation pit - it is important that the surface on which the car costs is absolutely smooth. The check is made as it is called "on the cold" when all the oil is collected in the gearbox crankcase.

First of all, you need to unscrew the plug of the fuel hole using a hexagon. If after unscrewing some amount of oil will turn outward - its level in the crankcase is sufficient. If the oil is not poured from the filling opening, then it is possible to check its level by entering a finger, a stick, a wire, etc. Ideally, the oil level should be no lower than a few millimeters from the lower edge of the fuel hole. If the distance is more - the oil level is insufficient. You can check the quality of the lubricating fluid by pumping a small amount of oil with a syringe and appreciating its appearance and consistency.

What oil to fill and how much

For the fill, the transmission oil recommended by the manufacturer in the manual is suitable. If the manual is not available, and the car owner is not firmly sure which transmission oil is suitable, then you need to focus on the API classification and viscosity indicators.

All manufacturers recommend using transmission oils with GL-4 or GL-5 numerations on modern cars - it is these liquids that contain the necessary anti-facility additives. As for viscosity, the selection depends here on climatic conditions of operation. For transmission oil, it is advisable to choose all-season options - it is unlikely that someone will change the oil in the gearbox for one season. Such products are indexed by double numbering, for example, 75W-90, where the first figure denotes viscosity at negative temperatures, the second - viscosity at summer exploitation. The smaller the first digit, the lower the temperature at which the transmission oil retains its viscosity. For example, an oil 70w can be used at limit temperatures in -55 ° C, 75W - in -40 ° C, 80w - in -26 ° C, etc.

As for the required volume, then 1-2 liters of transmission usually grabs for passenger cars with a drive per single axis. For cars with full-wheel drive and two crankcases, 3 liters may be required or more. Grup-passenger cars, the required volume of transmission oil can reach 10-15 liters. Before the fill, it is desirable to stock up additional volume (up to 1 liter), since additionally it may be necessary to flush the gearbox.

Oil Replacement Instructions

It is advisable to replace the oil after a small trip - it will allow oil to warm up and become less viscous. To carry out operation, again, it is advisable to use the lift or observation pit - it will be easier to access to the gearbox.

1. First of all, you need to merge old transmission oil. To do this, unscrew the plug hole with a hexagon. Exhaust oil must be merged into a pre-prepared capacity.
2. When plums should pay attention to the consistency and the appearance of the waste fluid - if impurities are observed in the form of metal enclosures, then before filling the new transmission will have to wash the gearbox.
3. Then it is necessary to remove the cork with a camp with a crankcase reducer with a hexagon.
4. To download the new oil into the gearbox, you can use a large medical syringe or lever pump (Tavernitsa).
5. Reducer must be filling with oil until it is cleaned through the edge. When using the TaVo. This will require 10-15 minutes, when using a syringe - a little longer.
6. After filling, it is necessary to erase the remains of the oil from the gearbox and put the plug of the fuel neck on the sealant.

Flushing gear

For flushing the gearbox, special flushing fluids are used (Loctite 7840, DS "Lavado", etc.). Alternatively, you can apply a mixture of transmission oil (70%) and kerosene or diesel fuel (30%).

This mixture should be pouring into a gearbox crankcase with a tvaotnica or a syringe. Then it is necessary to hang the wheels of the leading bridge using the backups, start the engine and turn on the first transmission by imitating the trip. In this mode, you need to make a bracket for 10-15 minutes, giving a flushing mixture to clean the gearbox. After that, the mixture should be merged in the same way as the spent transmission oil merged.

In the process of replacing the transmission oil in the gearbox, you can appreciate the state of other parts and consumables, for example, bridge seals. It is the wear of the salts that the oil level is reduced in the gearbox. When leakage detects in the glands should be replaced with new ones.

Deadlines shift gear oils

from "gear and transmission oils"

Best of all, when lubricating closed gears, refuel the required amount of suitable oil oil into a hermetically closed gearbox. With this method of lubrication, the oil can not be changed during the entire service life of the mechanism. On this path, they went, in particular, car manufacturers - in their guides, they do not indicate the exact terms of the change of transmission oils, limited to the general recommendation on the maximum duration of their use.
Consequently, to ensure reliable operation of the machines, as well as for economic reasons, it is necessary to drain the exhaust gear oil from the cutters of gearboxes and replace it with fresh. An oil change must be made by its oxidation or contamination, or after certain intervals.
After studying the issues of changing the oil in gearboxes, Forbes, etc. established that on the work of the gearbox in the first month of operation determine the service life in the future, they proposed to replace or carefully filter the gear oil two weeks after commissioning mechanisms. This is also necessary because the smallest metal particles formed during the work process catalyze oil oxidation.
Rejecting arbitrary deadlines for changing the oils mentioned above the authors believe that the most rationally periodically select oil samples to establish its further efficiency. First of all, in these samples, the presence of dirt, wear and water products are determined. You can also determine the acidic number of oil, viscosity and surface tension. In some fleets that operate high load trucks, oil operating in gearboxes and leading bridges replace fresh after its viscosity increases by 50%.
If the gearboxes are equipped with circulating lubrication systems, then, according to Forbes, etc., the oil can work for several years without shift, especially in the system of lubrication of the corresponding filters. It should be noted that cleaning the circulation system of lubricant when changing the oil is a more laborious operation than with splashing lubrication. By adding special additives to flushing oils or using solvents, you can remove most of the sediments from the oil tank, oil pipelines and crankcase. However, after such a washing, it is necessary to clean the details of the gearbox dry rag.
After processing the crankcase of the gearbox, it inspects its parts with flushing oil. If the 1st surface of the gears and other parts is detected traces of rust, it is necessary to find out the reasons for their appearance. With a satisfactory state of gearbox parts, it should be pouring fresh oil as soon as possible. In gearboxes with circulation systems, this can be done on a non-working gearbox. In gearboxes with lubricant, the pussy of the poles are lubricated with oil until the start of work.
If the toothed steam is made of heterogeneous metals (for example, in worm gearboxes), it is especially important to change the oil in a timely manner and inspect the mechanisms. After the strike, bronze particles stick to the worm and make it surface rough, which enhances the wear of the worm wheel. Replacing the exhaust oil and cleaning the worm from bronze shortly after starting the new gearbox, you can prevent further nsoshes gears.
With a single use of lubricating oil, the flushing of the mechanism may not be needed. With a lip of oil mist into the gearbox, only fresh oil and a hermetically closed gearbox housing are kept under a certain pressure, which eliminates the possibility of entering the lubrication system of polluting impurities. When operating open gear gearboxes, it is desirable to periodically clean them. In such gears, not only the contamination of the residual oils by various mechanical impurities acting as abrasives at the same time are caught between the gear teeth are clogged with heavier oil components. If it continues long enough, the shafts can occur. It is possible to remove these sediments by washing the kerosene reducer or some other solvent H by observing caution. If there are oil collectors in open gearboxes, they also need to be cleaned after certain intervals.