Which to choose for a car jack

Any car owner in the trunk of a car among other tools you can find the jack. Sometimes there are situations when it is necessary to lift the car and the jack is indispensable. Buying Jack must take into account its characteristics. Which to choose a car jack? That's what we'll talk in this publication. Legend has it that Jack was once used to break the gates in the storming of the fortress. The secret to the design of this tool is strictly protected. But once an unknown artist painted a nobleman, based on the jack, and subsequently sold the painting to the enemy. This event is considered, almost one of the first industrial espionage. And here is the first jack for cars was invented by an American, Peter Lunati in 1925, engaged in repair of cars. When selecting a car jack to be guided by the following characteristics: height, stroke, pickup height, load capacity. In addition to these characteristics in hydraulic jacks feature a gear. This characteristic is important to consider for one simple reason, and the reason for this is that it is on the performance of this feature depends on the engine power used by electric pump. If this is the hand pump, this feature is also important because it affects the force on the handle of the jack. Jack with butter is one of the long-used in the medium car-owners, the hydraulic jack. His work is performed using knowledge of the system of communicating vessels, in which hydraulic oil is a working body. Oil is pumped into the region under the piston, sometimes using an electric pump, sometimes by hand. At this point, oil begins to raise pump piston and the piston, in turn, raises the load. In the hydraulic valve has a so-called bypass valve, consisting of two parts, the discharge valve and suction. To save and create the necessary pressure in the working cylinder, and used these valves. When the plunger pump is lowered, the suction valve, which is located on the nozzle reservoir, delaying oil. Discharge valve, located on the nozzle of the cylinder, hold the hydraulic oil in the cylinder when the plunger pump rises. If using a screw to open the valve, we can thus reduce the pressure. Hydraulic jack and is very reliable in operation and is able to serve more than one year. In addition, it is good that raise or lower the vehicle to the desired height is evenly without jerking, since hydraulic fluid is a liquid is almost incompressible. Use a hydraulic jack and easy. Deficiencies had not so much. For those who are eternally somewhere in a hurry, this type of ram will not work because he works very slowly. If you bought a vertical hydraulic jack, and decided to take it with you before you travel, then, in any case, do not put it on its side. Oil could leak out, you dirty trunk, and, besides, Jack loses its functionality. Carrying capacity of large hydraulic jacks, and volume too, so they are mainly used in car repair. To date, there are several types of jacks, using hydraulics. Specialists in vehicle repair preferred rolling jack. They differ from the above jacks its construction. No accident that he got just such a title. These jacks cylinder axis is located horizontally, and thus they are relatively flat shape, which allows you to use them if necessary, even for vehicles with low clearance. Externally rolling jack is similar to a cart, and it just drove by a car. Installing and using these jacks, no difficulties with the only condition - the floor surface must be flat studio. Rolling jack is widely used in car repair. Auto-Owners use a modification of the vertical hydraulic jack, bottle jack is called, which is a vertically reciprocating ram having capacity from 2 to 100 tons. Naturally, the jack with these parameters has a very wide range of applications. He was able to pick up a passenger car and special-equipment vehicle. Bottle jack is completely free to fit in the trunk of a car that makes it available to use auto-owners. The only thing that should be recalled that it must be transported in an upright position. There pneumonic jacks. These jacks as the lift is used compressed air instead of oil. Due to some nuances of design and performance, this type of ram is not particularly popular. Let's briefly consider the kinds of mechanical jacks - screw and pinion. Some experts believe that the rack and pinion jacks are more relevant to the kinds of hydraulic jacks, separating them from the mechanical. You can agree or disagree with this view, but for now we will rack jacks, as a mechanical form. What should be said at once, so it is that the rack and pinion jacks come in different sizes. Use them as car owners of cars and drivers - Truckers. Externally pinion jack looks like a steel rod with at right angles to support the cup, which, strictly speaking, and placed the cargo. On the surface of rails are special holes or notches. Vertical movement of the pickup rack and pinion jack involve the participation of a rotating gear or rocker arm. The advantages of the rack and pinion jacks include the ability to move cargo in two directions - vertically and horizontally. It should be noted its high carrying capacity and durability. Rombovy jackscrew refers to a form of mechanical jacks. The principle of this jack is as follows - two hinged arm are interconnected by screw. A pair of shoulders moving in the opposite direction - this is the main lifting power jack. He is good and the fact that it can be used for vehicles with low clearance (landing vehicle). Of the merits of the jack should be noted in addition to low cost and ease of use, and also a little weight, and reasonable size. That's like jacking cars equipped with standard equipment. But, as everyone knows, there are no things without flaws. So have the diamond-shaped screw jack. You can use it only for cars, and even then only on a flat surface. Have to work hard to raise the car for a unit replacement wheels. But if the wheel of your car needed to be replaced on a rural road with no hard asphalt coating, in this case, Jack can not cope with their functions. Longevity jack can not boast. How to choose a jack for the car. To correctly select the car jack during a purchase, you'll first need to know the weight of the vehicle that will enable the right orientation with a capacity of ram. Quality jacks domestic producers and imports almost equal, but the cost, of course, different. Domestic rams cheaper. Buying a jack, focused on technical specifications. Choose a jack, which is able to keep the car with more weight than yours. It will not hurt to buy the jack to view the bottom of the car. It is possible that at the bottom you will find a special recess for jack. In this case, will have to find a jack that fits into these grooves. If after examining the bottom revealed that it is smooth, then you can use any you like, for example, diamond jack. The garage will be more suitable hydraulic bottle jack. Choosing a jack for a car, it is best to choose a diamond because of its compactness, low price and convenience are the advantages over other types of jacks.