Types of oils today are many. Therefore, before answering the question, what oil should be poured into the jack, it is necessary to understand the design and the principles of its operation.
Types of jacks.
Only after that it will be possible to understand what kind of oil is poured into the jack and what its brand should be. If the oil is of poor quality, the tool may break. It can never be saved, as the unit that has failed, will have to be replaced or repaired. Such work will require impressive financial investments.
Today it is very easy to distinguish the present high-quality oil from the surrogate. It is subject to almost any motorist. Each type has a certain rating that characterizes all positive and negative properties.
There are many varieties of jacks, which is suitable for one or another version of the oil. They are divided into:
The jack of the first group works on the applied human strength. This device has several subsections:
- rack and pinion;
The lubricant must be applied to the jack screw.
For them, you should always have a lubricating oil. Grease must be applied to the screw jacks. This tool is very fond of motorists. With it, you can replace the punctured wheel or lift the car for repair.
The main positive qualities of such jacks are:
- small weight;
- motorists can use them;
- high reliability.
In the principle of operation of screw jacks put a sliding mechanism. Its main part is the screw. Load capacity depends on screw thread. However, such a jack is designed for a small lifting of loads. These devices in most cases have a vertical design. Sometimes they are released in the form of a diamond. Such a tool can lift a weight of no more than two tons.
The construction of rack jacks consists of three main parts:
The advantage of this device is the ability to lift the load to a height of one meter. The mass of the cargo should not exceed three tons. For such a tool is also required to have a lubricating oil, which is covered with a rail.
Vertical hydraulic jack.
This type is different from those described above. He does not need much human effort. The principle of operation is very simple, click on the handle - the hydraulic piston - lifts the load. This type of jack is capable of lifting a weight of about 50 tons.
Hydraulic jacks are divided into several groups:
The main and, perhaps, the main advantage of such a jack is a large carrying capacity. Therefore, they have found wide application in service stations, repair work and so on.
Its disadvantage is the impossibility of transportation in the supine position. It can only be transported vertically. Otherwise, the hydraulic mechanism may fail. Practically any hydraulic fluid is suitable for such a jack.Back to table of contents
Pneumatic jack: the nuances
This type is characterized by high performance. The main basic component is a mains powered compressor. The load is lifted due to the hydraulic mechanism and compressed air. The jack is able to lift a load with a maximum weight of 50 tons. Since the cost of such a device is very high, they are used only in special convoys. For such a jack and the normal operation of the compressor the best option would be compressor oil.
Diagram of a pneumatic jack.
A conventional air cushion is filled with exhaust gases from a vehicle that come from the exhaust pipe.
Pillow inflates and raises the car.
The positive side of this type of jacks is the possibility of application on the worst roads, and the rise is much faster than using other types.Back to table of contents
Varieties of oils produced
Today there are many different brands of oil. We are most interested in the oil, which is suitable for both the car and the jack. Oils are divided into several groups. The main ones are:
Each option has its own purpose. They are not interchangeable.
To reduce the wear of parts in the car's gearbox, use gear oil. This is a very high quality liquid. As a result of work on the details, a peculiar film with high strength is formed. The film remains on the details for a very long time. An oil change is required after 50,000 km.
Hydraulic. This fluid is used for a variety of purposes. But most often it is used for the hydraulic system of trucks. This fluid has also been used in passenger cars. It is this oil that is best suited for hydraulic jacks. Hydraulic fluids are divided into three groups:
Table haraketristik engine oils for jacks.
They can be used for a variety of technical devices:
- marine equipment;
- shock absorbers;
Main requirements for hydraulic fluid
The use of hydraulic oil is a very important component in the operation of any unit - from the car to the jack. Therefore, the choice of oil requires responsibility and care. Each oil must meet certain characteristics.
First of all, it concerns the viscosity of the liquid. From this indicator depends on the freedom of movement of moving parts of the machine. Viscosity should be optimal. Also important is the temperature index or viscosity index. Usually this indicator should have large values.
This kind of liquid does not undergo oxidation. It is not affected by temperature fluctuations and the chemical composition of the environment. All this ensures long-term and high-quality operation of hydraulic fluid.
Such oils should have excellent anti-corrosion properties. If this is not the case, the hydraulic drive will fail very quickly.
Another important indicator of hydraulic fluid is “filterability”. That is, the liquid will pass through the filter and be cleaned of dirty impurities, which is important when operating any device. Oxygen and other gases should be easily removed from the working environment. No foam should be formed.
Hydraulic fluid should protect the hydraulic system of the machine from premature wear. It must be compatible with the materials used for the hydraulic system.Back to table of contents
Manufacturing of hydraulic oil
Most grades of hydraulic oil are made through the purification of base oils, which are the product of the processing of petroleum fractions. In the manufacture of hydraulic fluid used the latest technology:
- hydrolytic cleaning;
- extraction cleaning.
Sometimes, additional functional additives are used to produce good hydraulic oil. As a result, the oil acquires additional properties:
- does not foam;
- does not corrode;
- does not oxidize.
Basically, any oil can be poured into the jack, but in winter, it is better to use synthetic oil specially adapted for work in severe frost. It will not freeze, it will be possible to use the tool at any time.
Manufacturers of all hydraulic devices are advised to store the unit in a warm room so that liquid does not freeze. It is possible to work in severe frost, but only for a short time. For example, to replace a punctured wheel.
It is necessary to change the hydraulic oil more than twice a year, especially when the unit is used very often. With the systematic operation of the device, an oil change should be carried out every month and be accompanied by a complete flushing of the entire mechanism. Thus, it is possible to prolong the life of the product itself. No need to repair such a device. Repair of hydraulics will require large funds, which is undesirable. Treat the jack carefully, and it will serve you for many years.