Changing The Oil In The Lawn Mower Gearbox

We replace the oil in the gearbox with a new one

Pouring is performed according to the same technology as described earlier. To find out how much fluid is required, Study the car operating instructions. Typically, the grease level should be at the bottom of the filler hole or slightly lower. After that, carefully tighten the filler plug. Note! If the plug is not tightened properly, dirt will enter the mechanism.

When the replacement is made, the machine should be run-in within 2-3 days. After this time, a lubrication check must be performed. If she is in good condition, then you did everything right.

If you DO NOT change the oil in the gearbox in a timely manner, the mechanism will quickly fail, and driving a car will be unsafe, because a malfunction of the unit leads to the line of an accident.

Changing The Oil In The Lawn Mower Gearbox

Preparation for changing the oil in the axle gearbox

If you plan to do it yourself by changing the oil in the gearbox and “razdatka”, adhere to the following rules:

  • The machine must be securely fastened. Put it on the handbrake, stoppers should also be placed under the wheels.
  • The transmission must be warmed up before you start replacing. When doing this, make sure the gearbox is NOT hot. Be careful, the lubricant does not have to get on the skin, otherwise you can burn yourself.
  • You should change into old clothes in which you will be comfortable working. You should not be wearing synthetic clothing, because if it catches fire, it will stick to your skin.
  • It is necessary to put on special protection so that the lubricant does not get into the eyes, nose and mouth, otherwise the mucous membrane will burn.

What is required to change the oil in the steering gear:

  • Wrenches, included Must be ring, open-end, and hexagons;
  • A set of screwdrivers, you will need flat, cross-shaped, and also with a “torx” section;
  • WD-40. This composition will be required to clean the screws and plug;
  • The container into which you will pour the old grease. Its volume should be slightly larger than the amount of working fluid in the mechanism;
  • A syringe, as well as a hose, with the help of which the oil in the gearbox will be changed. Instead, you can use a hose of sufficient length and funnel;
  • Lift or inspection pit where you will perform the replacement.

First of all, you should prepare, and then check the level of the working fluid. over, this will have to be done without using a probe. Checking is done using the filler hole. Ideally, the lubricant level should be 0.2-0.5 cm lower than the hole. It is recommended that you make a dipstick with your own hands, it can be used for testing. Also pay attention to the shade of the grease and how thick it is. What color of working fluid can be:

  • The grease is clean, its shade is exactly the same as that of the new oil, or slightly darker. In this case, replacement is Not necessary, since the working fluid has NOT deteriorated;
  • The oil is dark and clear. There are no foreign inclusions. How to proceed in this case? If the time has come, then the oil in the gearbox should be changed, if there is, then it is allowed to replace it later;

What kind of oil to fill in the gearbox

When changing the oil, you should choose a standard transmission fluid recommended by the car manufacturer in your machine’s manual. In the case when it is not at hand, and you do not know exactly what kind of lubricant you can use, you should consider the API classification, as well as the viscosity.

Most car manufacturers advise changing the gearbox oil on new cars using GL-4 or GL-5 gear oil. In the composition of these lubricants there are special additives, which prevent the formation of scuffing. How to determine what viscosity should be? In this matter, the climatic conditions in which the car is operated should be taken into account.

To change the oil in the transmission, it is recommended to take an all-season lubricant, because no driver will ever fill in a new working fluid every season. All-season greases will be double numbered, for example, 75W-90. In this marking, 75 means viscosity at subzero temperatures, 90 viscosity in the warm season. If you need a working fluid that will withstand severe frosts, then choose oils with markings, where the first number will be less. This lubricant will retain its viscosity even at low temperatures. For example, 70W is suitable for operation at 55 ° C below zero, 75W. at 40 ° C, 80W. at 26 ° C.

How much replacement fluid is required? If you have a passenger car, front- or rear-wheel drive, 1-2 liters of grease will be enough. When the car is four-wheel drive, with two crankcases, it is better to purchase 3 liters or even more. To change the lubricant in a utility vehicle, 10-15 liters of oil are required. Experts recommend that you always have 1 liter of liquid in stock, because there is a high probability that you will need to flush the mechanism.

The opinion of the experienced in changing the oil in the gearbox

  • The manufacturer advises to change every 100 thousand? Repair pros recommend every 80k.

“The oil change in the rear axle gearbox was done in a car service after 100,000 kilometers, as the automaker recommends. However, specialists at the service station advised to do this every 80,000 km. I believe these guys, I have never let them down. I do NOT advise changing the lubricant in private auto repair shops, because no one will give a guarantee that such a master knows how much liquid to fill “.

Need to change gearbox oil? Take a look at the pharmacy first

“I skated 83,000 km, drove a car for 6 years. When the time came, I made an oil change in the rear gearbox with my own hands. In total, approximately 550 ml of lubricant was required. Poured from a four-liter canister, so the exact volume I can’t say.

The replacement was carried out at the summer cottage, there was no overpass or lift. I put the car on stands (17 cm high). Filling with grease is the simplest procedure, the cost of changing the oil in the gearbox is minimal, because the cost of grease is small. And you don’t need to pay for the work, because I did everything myself.

Don’t know how to pour liquid? Take Janet’s syringe. We put on it a flexible nozzle, about 20 cm long. The syringe contains 160 ml, I filled in about three and a half syringes “.

In a three-liter “razdatka” elsewhere

“If the car has a 3-liter engine, then the transfer case will be located next to the right front wheel. In this case, it will be easy to reach the filler bolt. The automaker has marked “OIL” on the head of the filler bolt to make it easier to navigate when replacing. The replacement was carried out, after having studied the book from the publishing house “Third Rome”, if you wish, you can download it, since it is freely available “.

When the gearbox oil is changed

When to change the oil in the automatic transmission gearbox? It is impossible to give an exact answer to this question. Usually, the lubricant is changed to a new one when servicing the transmission, when other working fluids are also filled. Maintenance of the box should be done every 45,000 kilometers (or every 60,000), that is, once every two years.

However, the gearbox oil must be changed more often if the machine is operated intensively, as in the following cases:

  • You are transporting heavy cargo, towing trailers or cars on a cable;
  • The machine is used in difficult conditions, for example, you are driving off-road, in deep snow;
  • Drive in a city, often get stuck in traffic.

If you have a new car, then after studying the operating instructions, you can find out that the manufacturer recommends that the first oil change in the engine gearbox be performed after 1000-2000 km. Indeed, at this time, all the mechanisms of the car rub against each other, which means that during this period the friction will be increased and a large number of wear products will form.

If the oil is NOT changed regularly, it will lose its viscosity. Then oxidation processes will begin due to the fact that hot air penetrates into the unpressurized system. All this will lead to the decomposition of the working fluid, it will cease to properly lubricate the parts. As a result, the gears will wear out and the gearbox will overheat.

Changing the oil in the gearbox: why, when and how

Changing the oil in the gearbox prevents the increased friction of the elements that occurs as its lubricating properties are lost. The reducer is installed on the front axle of front-wheel drive vehicles (in this case, it is integrated into the gearbox), on the rear axle of rear-wheel drive vehicles and on both axles, if we are talking about all-wheel drive cars. It is thanks to this unit that torque is received from the crankshaft and its subsequent transfer to the center differential.

Since the torque is transmitted by the gearbox using gears, it is on them that abrasion occurs over time. To prevent it and protect your car from damage, it is necessary to timely change the transmission oil in this unit. We will talk about how to replace the lubricant in the gearbox in this article.

How is the oil change in the gearbox

The first step to start changing the oil is to warm up the gearbox. Motorists with extensive experience are advised to drive about 5-10 kilometers. Then you need to park the car and get to work.

Drain the used oil

How do I change the oil in the front gearbox? To do this, remove the crankcase guard. All bolts must be washed and then applied with WD-40. The gearbox also needs to be cleaned of dirt, corrosion removed. Plugs can also be processed with WD-40. The fact is that most often they sour, therefore, you should be careful when unscrewing them. Otherwise you rip off the thread.

A large container must be placed under the drain hole, into which the liquid will be drained. Now you can unscrew the drain plug. As soon as the grease starts to flow out, unscrew the filler cap. Now you need to wait until all the liquid has drained out.

Flush the reducer

Sometimes it is better to use a special product for flushing. However, oil is most often used for this. How is flushing done:

  • We collect lubricant into the gearbox through the filler hole. This can be done using a syringe to which a hose of the required length is connected. The hose should be chosen so that it fits snugly on the syringe and passes into the filler hole. Grease volume 70-80% of the norm.
  • We close the filler hole. Now you need to drive a car along the highway for 15-20 kilometers to get the break-in mechanism. Break-in means smooth movement, no need to suddenly switch gears.
  • Next, you should remove the liquid, how to drain it, it was described in the first paragraph.
  • Studying the drained grease, pay attention to its color and density. If necessary, flush again.
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Why do you need oil in the gearbox

The main task of the lubrication in the gearbox is to reduce friction during the operation of this mechanism. A dense oil film forms on all its elements. This eliminates abrasion of parts, which means that the gearbox will work properly for a long time.

What else is lubrication needed for:

  • The liquid prevents rust from forming, protecting metal surfaces from oxidation. As a result, the resource of the mechanism increases.
  • The lubricant does not allow the parts to overheat, because it absorbs some of the thermal energy, as a result, the gearbox is cooled.
  • Cleans the assembly from dirt and chips. The lubricant contains additives that bind microparticles of dust and dirt, which penetrate into the mechanism. The efficiency of the additives will be the higher, the better the lubricant composition.
  • Lubrication allows the engine to start easily even in severe frosts. Due to low temperatures, metal elements freeze, parts stick together. If no oil is poured into the mechanism, the engine will not start. The fact is that the gearbox will stall, as a result, the crankshaft will NOT be able to start moving. This is avoided by the transmission lubricant, it will not allow the parts to stick together.

The better the lubricant, the higher its effectiveness. Please note that when changing the gearbox oil, it is worth using a regular transmission fluid. It is also used in the gearbox. However, it is still recommended to check the data that is indicated in the car’s service book. In rare cases, this mechanism should be filled with special grease. Also, do not forget that engine oil cannot be poured into the transmission. The fact is that the viscosity, temperature conditions and composition of these lubricants differ.

Gearbox oil change intervals.

It will be easiest to determine the frequency with which the oil in the gearbox of your particular car should be changed by studying the operating instructions. In the absence of such, you can focus on standard recommendations. As a rule, for cars with manual transmission, the Recommended replacement interval is 50-60 thousand kilometers. For cars with automatic transmission, the mileage will be approximately two times shorter and will be 25-30 thousand kilometers.

It should be borne in mind that the frequency of replacement depends on the operating conditions of the car. In “difficult” conditions, the oil in the gearbox should be changed much more often.

Conditions that reduce the gearbox oil change interval include:

  • Regular transportation of large loads, towing trailers or other vehicles;
  • Driving on unpaved country roads, driving with frequent slippage, driving on loose snow;
  • Driving for short distances with frequent braking and stopping (as a rule, this mode is typical for any metropolis).

When buying a new car, a manufacturer or dealer often notes the need for the first oil change after 2-3 thousand kilometers. Such a short period is really justified. During the initial operation, intensive grinding of all vehicle units takes place, this process is inevitably accompanied by significant formation of wear products. For the subsequent long-term trouble-free operation of the car, the oil must be changed after the first couple of thousand kilometers of running.

When a gearbox oil change is required?

Conventionally, there are three main reasons why it is important to change the oil in the gearbox:

  • In the process of intensive operation, thermal and oxygen exposure leads to the decomposition of hydrocarbons that make up the transmission oil, which leads to metal corrosion;
  • Over time, the viscosity of the oil decreases, its properties deteriorate and, as a result, the wear of the gear teeth of the gearbox increases;
  • Wear debris gradually accumulates in the oil, which also impairs its lubricity and accelerates wear.

There are other situations in which it is recommended to change the oil in the gearbox regardless of the mileage.

As a rule, the oil is changed when buying a used car “from hand” if you have reliable data on the previous oil change (for example, in the form of an entry in the service book). Otherwise, there is a high risk of significantly exceeding the recommended replacement interval if the previous owner misleads you.

In addition, the oil is changed after a major repair of the corresponding vehicle units (and, of course, after a major overhaul). over, in this case, a repeated oil change is required after the break-in period (after 2-3 thousand kilometers, as in a new car).

The task of a gearbox in a car is to transmit and distribute torque from the engine to the wheels. This function is realized due to the interaction of rotating toothed gear shafts, which differ in the number of teeth. Depending on the ratio of the number of teeth in the gears, the gearbox can either lower or higher torque, depending on the design features of the car.

Obviously, the constant interaction of metal elements in the absence of lubrication would be extremely short-lived. Therefore, transmission oil plays a significant role in the operation of the gearbox. It allows for optimal adhesion of the gear teeth to each other, reduces metal abrasion and, as a result, increases the life of the gearbox.

Changing the oil in the gearbox is carried out, as a rule, simultaneously with changing the oil in the transmission (and the oil is the same as in the transmission), and its timely implementation is no less important for the gearbox than for the gearbox. For most cars, it is optimal to change the oil in the gearbox during seasonal maintenance of the car (when changing from winter to summer operation and vice versa).

Self-change of oil in the gearbox

When changing the oil in the gearbox on your own, you must pay attention to several nuances.

On most cars, changing the oil in the gearbox is not a laborious procedure (as opposed to repairing or replacing the gearbox itself), but it is optimal to perform it on an inspection pit or overpasses. This will allow you to install the car with the possibility of subsequent overhang of the wheel for flushing the gearbox.

The oil is drained at Warm up the engine, so care must be taken during operation to avoid burns, as the oil temperature is very high. In this case, it is important to let the oil drain completely, since the heaviest suspensions remain in the thick sediment, which flows down last.

On most vehicles, the drain plug design contains a magnetic part that attracts metal deposits. Therefore, when changing the oil, it is important to flush the drain plug as well.

If, upon external assessment, the drained oil looks very contaminated, it is advisable to additionally flush the system with a special flushing liquid. Its density is significantly lower than ordinary oil, which literally allows you to wash away dirt residues that have settled on the working surfaces of the gearbox.

After draining and cleaning, the gear unit can be filled with fresh oil.

As a rule, the oil change in the gearbox is carried out with an oil similar to that previously used, recommended by the car manufacturer.

In some cases, a car owner wishing to change the brand of the oil used can use the compatibility tables offered by the oil manufacturers. But, of course, it is most effective in this case to seek advice from specialists.

Also during maintenance, in addition to assessing the condition of the oil itself, it makes sense to pay attention to the condition of the gearbox oil seals, since through them oil can flow out of the gearbox.

Our service center specializes in handling a wide range of lubricants. We offer a wide selection of engine and transmission oils, and our masters are always ready to provide professional assistance in the selection of the oil that is optimal for your car, taking into account the peculiarities of its operation.

Changing the oil in the robot or variator will help to avoid premature wear of the gearbox, extend its service life, improve driving comfort and avoid accidents. The main thing is to entrust the work to professionals. STO SPOT. See for yourself. call 8 (812) 603-44-80 and sign up for a replacement!

When a gearbox oil change is required?

Conventionally, there are three main reasons why it is important to change the oil in the gearbox:

  • In the process of intensive operation, thermal and oxygen exposure leads to the decomposition of hydrocarbons that make up the transmission oil, which leads to metal corrosion;
  • Over time, the viscosity of the oil decreases, its properties deteriorate and, as a result, the wear of the gear teeth of the gearbox increases;
  • Wear debris gradually accumulates in the oil, which also impairs its lubricity and accelerates wear.

There are other situations in which it is recommended to change the oil in the gearbox regardless of the mileage.

As a rule, the oil is changed when buying a used car “from hand” if you have reliable data on the previous oil change (for example, in the form of an entry in the service book). Otherwise, there is a high risk of significantly exceeding the recommended replacement interval if the previous owner misleads you.

In addition, the oil is changed after a major repair of the corresponding vehicle units (and, of course, after a major overhaul). over, in this case, a repeated oil change is required after the break-in period (after 2-3 thousand kilometers, as in a new car).

The task of a gearbox in a car is to transmit and distribute torque from the engine to the wheels. This function is realized due to the interaction of rotating toothed gear shafts, which differ in the number of teeth. Depending on the ratio of the number of teeth in the gears, the gearbox can either lower or higher torque, depending on the design features of the car.

Obviously, the constant interaction of metal elements in the absence of lubrication would be extremely short-lived. Therefore, transmission oil plays a significant role in the operation of the gearbox. It allows for optimal adhesion of the gear teeth to each other, reduces metal abrasion and, as a result, increases the life of the gearbox.

Changing the oil in the gearbox is carried out, as a rule, simultaneously with changing the oil in the transmission (and the oil is the same as in the transmission), and its timely implementation is no less important for the gearbox than for the gearbox. For most cars, it is optimal to change the oil in the gearbox during seasonal maintenance of the car (when changing from winter to summer operation and vice versa).

Gearbox oil change intervals.

It will be easiest to determine the frequency with which the oil in the gearbox of your particular car should be changed by studying the operating instructions. In the absence of such, you can focus on standard recommendations. As a rule, for cars with manual transmission, the Recommended replacement interval is 50-60 thousand kilometers. For cars with automatic transmission, the mileage will be approximately two times shorter and will be 25-30 thousand kilometers.

It should be borne in mind that the frequency of replacement depends on the operating conditions of the car. In “difficult” conditions, the oil in the gearbox should be changed much more often.

Conditions that reduce the gearbox oil change interval include:

  • Regular transportation of large loads, towing trailers or other vehicles;
  • Driving on unpaved country roads, driving with frequent slippage, driving on loose snow;
  • Driving for short distances with frequent braking and stopping (as a rule, this mode is typical for any metropolis).

When buying a new car, a manufacturer or dealer often notes the need for the first oil change after 2-3 thousand kilometers. Such a short period is really justified. During the initial operation, intensive grinding of all vehicle units takes place, this process is inevitably accompanied by significant formation of wear products. For the subsequent long-term trouble-free operation of the car, the oil must be changed after the first couple of thousand kilometers of running.

Self-change of oil in the gearbox

When changing the oil in the gearbox on your own, you must pay attention to several nuances.

On most cars, changing the oil in the gearbox is not a laborious procedure (as opposed to repairing or replacing the gearbox itself), but it is optimal to perform it on an inspection pit or overpasses. This will allow you to install the car with the possibility of subsequent overhang of the wheel for flushing the gearbox.

The oil is drained at Warm up the engine, so care must be taken during operation to avoid burns, as the oil temperature is very high. In this case, it is important to let the oil drain completely, since the heaviest suspensions remain in the thick sediment, which flows down last.

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On most vehicles, the drain plug design contains a magnetic part that attracts metal deposits. Therefore, when changing the oil, it is important to flush the drain plug as well.

If, upon external assessment, the drained oil looks very contaminated, it is advisable to additionally flush the system with a special flushing liquid. Its density is significantly lower than ordinary oil, which literally allows you to wash away dirt residues that have settled on the working surfaces of the gearbox.

After draining and cleaning, the gear unit can be filled with fresh oil.

As a rule, the oil change in the gearbox is carried out with an oil similar to that previously used, recommended by the car manufacturer.

In some cases, a car owner wishing to change the brand of the oil used can use the compatibility tables offered by the oil manufacturers. But, of course, it is most effective in this case to seek advice from specialists.

Also during maintenance, in addition to assessing the condition of the oil itself, it makes sense to pay attention to the condition of the gearbox oil seals, since through them oil can flow out of the gearbox.

Our service center specializes in handling a wide range of lubricants. We offer a wide selection of engine and transmission oils, and our masters are always ready to provide professional assistance in the selection of the oil that is optimal for your car, taking into account the peculiarities of its operation.

Changing the oil in the robot or variator will help to avoid premature wear of the gearbox, extend its service life, improve driving comfort and avoid accidents. The main thing is to entrust the work to professionals. STO SPOT. See for yourself. call 8 (812) 603-44-80 and sign up for a replacement!

Changing the oil in the gearbox

Changing the oil in the rear gearbox is simple. How often to do it?

It all depends on how much and where you ride. I do this procedure every winter. Maybe someone will say too often. But in my opinion it will NOT be worse from this. The main thing is to figure out where the drain plug is located, and where the filler is. In almost all scooter models, there is an inscription on the gearbox informing about the amount of oil that must be poured into the rear gearbox. This inscription should be looked for near the filler (1) or drain (2) hole or in this area on the variator. If you are changing the oil for the first time, the rear wheel can be removed for convenience and clarity. Dismantle the muffler and loosen the nut on the rear wheel axle. In the area where the rear wheel is attached to the variator block, we are looking for a drain hole (2).

As an example, a photo of an oil change on a Piaggio NRG mc2 scooter (1998 series)

Its location is different. In some models, to get to the drain, you need to remove the variator cover, another option is located on the side of the rear wheel at the lowest point of the variator. The main thing is not to rush to twist all the bolts. If there is oil, after unscrewing it by 2-3 turns, it will soak out from under the plug screw. Fill holes are also made in different ways. There is an option with a rubber tube sticking out of the variator, and there is also a bolt only in the upper part of the variator (well, near the rear wheel).

As a rule, the required amount of oil is limited to 100-200 g. Or even less, but they sell at least a liter. DO NOT get upset Return the bottles and buy a can of oil. Which one? In principle, any transmission. If finances allow, buy the best and not in casual tents, but preferably in reputable magicians. Although, of course, they can sell any shnyaga there. Further, the process is as follows: you need to ride or stand and pogazovat with the rear wheel hanging. This is necessary to warm up the oil and stir up the dirt and sawdust, which are probably present in the gearbox. Next, unscrew the filler nut and then unscrew the drain, after placing a container for sludge under it. Having drained all the oil, see what has merged there. If the oil is dirty and with chips or dirt, it will not be superfluous to flush the gearbox (and at the same time think about replacing the gearbox). Shavings are very rare.

It is possible to fill in the flushing, but the flushing will NOT merge to the end and after filling in fresh oil it will harm. I take advantage of the fact that a lot of oil remains and I just fill it in and Drain it several times. Not well, if you are a die-hard fan of “enhancers”, try flushing, but again, it is better to use something that is oil-based and poured like oil, not a concentrate.

Between oil changes, it will not be superfluous to burn a little for a better flushing result. If there was no oil in the gearbox at all, then after you filled it with oil, pay attention to the tightness of the gearbox cover gasket, as well as the rear axle oil seal. It happens that these things leak and then the owner removes the oil there and wipes everything clean before selling (so that the killed oil seal is not visible or through the lid). It is true that the conscience does not completely leave the former owner and he lubricates the gears with thick grease.

If the oil seal leaks, it must be replaced. If the leak comes from under the cover, then unscrew it and put it on a gas-resistant sealant. Yes, if it is a Japanese motor, then it is better to tighten the gear cover with an impact screwdriver, because The bolts are sometimes loosened. After changing the oil, do not forget to tighten the drain and filler plugs well.

After that, clean and dry Wipe the places where the filler and drain holes are installed to subsequently check their tightness.

We strongly do not recommend opening the gearbox once again for better flushing. The slightest misalignment and misalignment will lead to the howling of gears at speed. Well, as you might guess This will not have the best effect on the resource.

Tools and materials

You may need a set of tools:

  • Oil collecting container;
  • Clean, dry rags, napkins or towels;
  • Socket wrench with corresponding socket;
  • Empty plastic containers (household with lids)
  • Machine oil;
  • Set of wrenches;
  • Trumpet;
  • Pumping syringe;
  • Siphon.

Preparation and setup

The location of the mower is important when preparing this machine for an oil change. Due to the potential for leakage It is best not to do this on grass or near flower beds, as oil droplets can adversely affect plant life. Select a hard, flat surface such as a driveway or sidewalk, and be sure to use plastic wrap to keep oil droplets and stains on this protective film.

A good rule of thumb is to run the mower for one or two minutes before changing the lubricant to warm up the engine a little. After that, you will have much less trouble retrieving the old grease. It is also useful to take precautions when working with the mower after turning it on, as there will be an increased likelihood of burns in the engine, for example. Working gloves are recommended to reduce the risk of injury.

Finally, you can disconnect the spark plug wire from the spark plug itself and remove it further to avoid accidentally starting the engine. And you also need to make sure that the pump (pump) is turned off. The last step in your preparation should also include cleaning the area around the oil fill hole to prevent foreign particles or dirt from entering the oil reservoir.

How to change the oil in a lawn mower?

Lawn maintenance starts with a well-maintained lawn mower, which means that there are certain tasks that must be performed constantly to keep the machine in top working condition. One of the most fundamental aspects of owning a lawn mower is knowing how to change the oil.

Removing old oil

Recovery of old grease is one of the most important steps in the process. There are three ways you can use to make sure you remove a lot of old oil.

  • Use a siphon. Insert one end of the tube into the dipstick hole to measure the oil level until it reaches the bottom of the oil reservoir. Place the other end of the siphon in a structurally sturdy container that you will be using specifically for this and future grease change. Finally, place blocks of wood or other sturdy material under the wheels of the mower on the opposite side of the pouring hole. It is easier to remove almost all the oil in tilted lawn mowers.
  • Remove the oil plug. Depending on the type of petrol mower, you can remove the oil plug to drain old grease. Refer to your user manual for the location of your drain plug and make sure you have the correct size socket wrench for the job. Installed a wrench on the plug, remove it. When the oil is completely drained, you can replace the plug.
  • Use a special tool such as a syringe to pump out and fill the oil tank. This is very convenient when the opening of the tank is too narrow, and at the same time it is inconvenient or impossible to pour new oil from the bottle. The syringe can easily pass through the hole to pump out old waste oil.
  • Slope method. If you do not have access to the oil tank, you can drain it by tilting the mower to one side. When tilting the mower, place the filler cap on the container you are using to collect used oil. Once properly positioned, remove the filler cap and allow the oil to drain completely. Using this method, you must know exactly what level of fuel is in the mower. It is also important to note here where the air filter is located so that it does not get dirty with drain oil.

Filling the tank

Now that the old oil has been removed, it’s time to fill the reservoir with fresh grease. Refer to your lawnmower manual again to find out which type of oil is right for your machine and how much oil you need to fill.

Fill the oil tank. Let the oil settle for at least two minutes and then check the level with the dipstick to make sure it is filled correctly.

After the oil reservoir is filled to the proper level, you will need to reattach the spark plug wire. Do not start the mower immediately, let the machine stand for a few minutes before starting work.

See below for how to change the oil in a 4-stroke lawnmower.

Oil change instructions

It is advisable to change the oil after a short trip. it will allow the oil to warm up and become less viscous. To carry out the operation, again, it is advisable to use a lift or a viewing pit. this will facilitate access to the gearbox.

  • The first step is to drain the old gear oil. To do this, unscrew the drain plug with a hexagon. Used oil must be drained into a previously prepared container.
  • When draining, pay attention to the consistency and appearance of the waste fluid. if there are impurities in the form of metal impregnated in it, then before filling a new transmission, you will have to flush the gearbox.
  • Then it is necessary to remove the plug from the filler hole of the gearbox housing with a hexagon.
  • A large medical syringe or lever pump (grease gun) can be used to load new oil into the gearbox.
  • The gearbox should be filled with oil until it overflows. When using a grease gun, it will take 10-15 minutes, when using a syringe, a little more time.
  • After filling, you need to wipe off the remaining oil from the gearbox and put the filler plug on the sealant.
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How to change the oil in the gearbox itself

Automotive gearbox is a transmission element that receives torque from the crankshaft and transmits it to the center differential. Depending on the type of transmission, a distinction is made between the gearboxes of the front axle (on front-wheel drive models) and the rear axle (on rear-wheel drive) integrated into the gearbox. In all-wheel drive models, respectively, both gearboxes are present. The transmission of torque through the gearbox is carried out by means of gear wheels rotating at a certain frequency. Gearbox oil is used to prevent abrasion due to friction in the gearbox.

When to change

There is a definite period for changing the oil in the gearbox. It is customary to pour new oil into the unit at the same time when other transmission elements are serviced and the rest of the transmission fluids are changed. The standard period for servicing the transmission is 45 thousand km of mileage, then every 60 thousand mileage, or every 2 years of vehicle operation.

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

  • Transportation of heavy loads, towing trailers or vehicles on a cable;
  • Frequent driving in city mode (start. stop)
  • Operation in adverse conditions (off-road, in conditions of snowy roads, etc.).

In the user manuals of some models it is indicated that the first oil change in the gearbox must be done after 1-2 thousand km of run. The fact is that at this stage, the vehicle components are lapped, which is characterized by increased friction and the formation of wear products.

What oil to fill and how much

Suitable for filling is the gear oil recommended by the manufacturer in the instruction manual. If there is no manual, and the car owner is not sure which gear oil is suitable, then you need to focus on the API classification and viscosity indicators.

All manufacturers recommend the use of GL-4 or GL-5 gear oils on modern cars. these fluids contain the necessary extreme pressure additives. As for the viscosity, the choice here depends on the climatic conditions of operation. For gear oil, it is advisable to choose all-season options. hardly anyone will change the oil in the gearbox for one season. Such products are indexed with double numbering, for example, 75W-90, where the first digit indicates the viscosity at negative temperatures, the second. the viscosity during summer operation. The lower the first digit, the lower the temperatures at which the transmission oil retains its viscosity. For example, 70W oil can be used at extreme temperatures of 55 ° C, 75W. at 40 ° C, 80W. at 26 ° C, etc.

As for the required volume, for cars with a drive, 1-2 liters of transmission are usually enough for one. Four-wheel drive vehicles with two crankcases may require 3 liters or more. In utility vehicles, the required volume of transmission oil can reach 10-15 liters. Before filling, it is advisable to stock up on an additional volume (up to 1 liter), since you may additionally need to flush the gearbox.

How to check the oil level and quality

During the operation of the car, the oil in the gearbox loses its viscosity, and later oxidative processes occur as a result of the ingress of heat up air due to insufficient tightness of the system. As a result, the oil decomposes and ceases to perform lubricating functions, intensive wear of the gear wheels occurs and the gearbox overheats.

Checking the quality and level of the oil is carried out on ramps or a viewing pit. it is important that the surface on which the car stands is absolutely flat. The check is carried out, as they say, “cold”, when all the oil is collected in the gearbox housing.

The first step is to unscrew the filler plug using a hexagon. If, after unscrewing, a certain amount of oil spills out, its level in the crankcase is sufficient. If oil does not flow from the filler hole, then you can check its level by inserting a finger, a stick, a wire, etc. into the hole. Ideally, the oil level should NOT be lower than a few millimeters from the bottom edge of the filler hole. If the distance is greater, the oil level is insufficient. You can check the quality of the lubricating fluid by pumping out a small amount of oil with a syringe and evaluating its appearance and consistency.

Gearbox flushing

To flush the gearbox, special flushing fluids are used (Loctite 7840, DS Lavada, etc.). Alternatively, a mixture of gear oil (70%) and kerosene or diesel (30%) can be used.

This mixture must be poured into the gearbox housing using a grease gun or syringe. Then you should hang out the wheels of the drive axle using struts, start the engine and engage the first gear, simulating a trip. In this mode, you need to let the engine run for 10-15 minutes, allowing the flushing mixture to clean the gearbox. After that, the mixture should be drained in the same way as used transmission oil was drained.

In the process of replacing the gear oil in the gearbox, you can at the same time assess the condition of the second parts and consumables, for example, axle oil seals. It is the wear of the oil seals that can serve as a prerequisite for the low oil level in the gearbox. If leaks are found in the oil seals, they should be replaced with new ones.

4-Stroke Lawnmower Oils

  • Why do you need lubricant?
  • Features of the four-stroke engine
  • Selection recommendations
  • How often do you need to change the lubricant?
  • Oil change
  • What oil should not be poured?

Lawn mowers have long taken their place among the necessary equipment in the owners of country and private houses, as well as employees of park facilities. In the summer, this technique is used quite intensively. For reliable and durable operation of lawn mower engines, the quality of fuels and lubricants, in particular, oils, is of great importance. In oils for 4-stroke engines of this type of gardening machines, it is described in this article.

Features of the four-stroke engine

Lawn mower gasoline engines are divided into two groups: two-stroke and four-stroke. Their difference in the way of filling the oil is as follows:

  • Lubricant for two-stroke engines must be pre-mixed with gasoline in a separate container and in a certain ratio, mixed thoroughly, and after all this, it must be poured into the fuel tank of the car;
  • Lubricant and gasoline for four-stroke are NOT pre-mixed. these liquids are poured into separate tanks and work separately, each according to its own system.

Based on this circumstance, the requirement for oil is also special here. It should retain its properties for a long period, when, as for the lubricating composition of a two-stroke motor, the main quality criterion, in addition to the basic properties, is the ability to burn without a trace, Do not leave carbon deposits and deposits.

Oil change

Changing the lubricant in a lawn mower engine is not as difficult as changing the oil in a car. Everything is much simpler here. The work algorithm is as follows.

  • Prepare enough fresh oil for replacement. Usually, the lubrication system of many lawn mowers is filled with NOT more than 0.6 liters of oil.
  • Start the unit and let it idle for a few minutes to warm up the oil, so that it becomes more liquid. This promotes better drainage.
  • Switch off the engine and place an empty container under the drain hole from the crankcase to collect the used oil.
  • Unscrew the drain plug and let all the oil drain. It is recommended to tilt the device (if possible or appropriate) towards the drain.
  • Tighten the plug and move the car to a level surface.
  • Open the filling hole on the Shrovetide tank and fill it to the required level, which is controlled by a dipstick.
  • Tighten the tank cap.

Why do you need lubricant?

Gasoline engines of lawn mowers are internal combustion engines (ICE), in which the DRIVING force transmitted from the internal combustion engine to the working bodies (cutting knives) is generated by the energy generated in the combustion chamber of the cylinder when the fuel mixture ignites. As a result of the ignition, the gases expand, forcing the piston to move, which is associated with the mechanism for further transfer of energy to the final organ, that is, in this case, to the lawn mower knives.

In the engine, therefore, many large and small parts are mated, which need lubrication in order to, if not completely prevent their abrasion, destruction, wear, then at least as much as possible slow down these processes, negative for the mechanism.

But over time, this cannot be avoided, since the development of gaps in the mates still occurs. And the better the oil, the longer the service life of the garden equipment will be. In addition, with the help of high-quality lubricants, the following positive phenomena occur:

  • Better cooling of the engine and its parts, which prevents overheating and thermal shock;
  • Engine operation is guaranteed at high loads and with a long period of time continuously Mowing grass;
  • Provides protection from corrosion of internal engine parts during seasonal downtime.

Selection recommendations

It is best to use a specially designed oil for the 4-stroke engines of lawn mowers, in accordance with the ambient temperatures in which the equipment will be used. For example, specialized grease grades 10W40 and SAE30 are quite suitable for four-stroke mowers in terms of their operational parameters, which can be used at ambient temperatures in the range from 5 to 45 degrees Celsius.

In the absence of specialized oils, you can use other classes of oils used for cars. These can be grades SAE 15W40 and SAE 20W50, which are also used at positive temperatures, but only their threshold is 10 degrees lower than specialized ones (up to 35 degrees). And also for 90% of the available models of four-stroke lawn mowers, an oil of SF composition will do.

The container with engine oil for a four-stroke lawn mower must be marked with the “4T” sign. Synthetic, semi-synthetic and mineral oils can be used. But most often they use semi-synthetic or mineral oil, since synthetic oil is very expensive.

And in order not to guess what oil to fill in the engine of your mower model, it is better to look at the instructions. The required type of oil and the frequency of its replacement are indicated there. It is recommended to use only the types of oils specified by the manufacturer before the expiration of the warranty repair period in order to maintain the issued guarantees. And then you can choose something more affordable, but, of course, not inferior in quality to branded oils. You should not save on oil quality.

How often do you need to change the lubricant?

As noted above, the operating instructions for garden equipment with a 4-stroke engine must indicate the frequency of oil changes. But if there are instructions, then they are guided first of all by the number of hours that the technique has worked (engine hours). Every 50-60 hours worked, you need to change the oil in the engine.

However, in the case when the site is small and you can process it in no more than one hour, it is unlikely that for the entire spring-summer season the lawn mower will work even half the operating hours of the norm, unless you rent it out to neighbors. Then the oil must be changed when the equipment is preserved in the fall before the winter period.

What oil should not be poured?

Do not fill the four-stroke engine of the lawn mower with lubricant intended for two-stroke analogs (on the labels of oil containers for such engines, the marking “2T” is put). However, you cannot do this and vice versa. In addition, it is unacceptable to fill in the liquid that was stored in plastic bottles from drinking water.

For how to change the oil in a four-stroke lawnmower, see the following.