Correct tire pressure truck- one of important parameters wheeled vehicles, as it affects many characteristics. In this article, we will figure out what the correct pressure should be in the tires of a truck. Basically, the following depends on the pressure:
- driving comfort, which is important for long trips;
- optimal mileage and fuel consumption;
- transmission of forces during acceleration of the car.
In addition to the factors described above, improper pressure is one of the causes of emergencies on road. Downgrading allowable rate the car frame strongly compresses, resulting in adverse factors:
- a significant reduction in tire life due to uneven wear;
- truck tire overheating;
- rolling resistance is greatly increased.
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These are just some of negative consequences incorrect tire pressure cargo type. For example, reducing the rate by only 30% leads to a significant increase in fuel consumption, equal to one tenth of standard waste. In addition, the doubled tire wear is added to the negative factors. The braking distance also becomes longer by 15%.
Exceeding standards, like understating, also leads to negative results.
The main problem owners face trucks when driving with overinflated tires, this is their uneven wear and, as a result, significantly increased wear.
Reduced tire life increases vehicle maintenance costs and can lead to accidents. Properly inflated tires avoid all the problems described above, as well as optimize fuel consumption and halve the cost of changing tires.
Selection of pressure in the tires of trucks
Finding the right pressure for truck tires is quite simple, since almost every vehicle manufacturer indicates the nominal values \u200b\u200bin the operating instructions for wheeled vehicles. Usually two numbers are indicated that show the level of tire inflation.
One of them for a car without luggage, the second for a loaded truck. If only one value is written, then it is intended for an empty machine, and when heavy loads tires need to be pumped up to 0.3-0.5 atmospheres on the wheels. Also, this rule is true for long trips on an unloaded car.
Such changes in the inflation of car tires are necessary due to the fact that the ideal operating conditions for a truck is the proportionality of the load on the wheel and the pressure inside it.
To protect yourself as much as possible while driving, you need to check the amount of atmosphere in the tires at least 2 times a week. The check is carried out before the machine begins to be actively used, since when driving, the tire pressure changes due to heating and may be higher than with cold rubber.
Correct tire pressure for a truck
There is the concept of "correct pressure" for cargo-type wheeled vehicles. It is divided into 3 main types.
Tire pressure is an indicator that directly affects the safety of the driver and passengers. A low level of pressure can lead to delamination and wear of the tire. Tires with increased internal pressure poorly compensate for road irregularities and significantly reduce driving comfort. Trucks are very sensitive to tire pressure, because they constantly change the weight of the load. Accordingly, the load on the tires is different every time.
Truck tire pressure can take two main parameters:
- Maximum pressure. Each automaker indicates the maximum allowable pressure on the sidewall of the tire. Exceeding this value is highly discouraged, because. excessive pressure can lead to a decrease in the elasticity of the tire and its subsequent puncture.
- Recommended tire pressure - tire pressure, which varies depending on the axle load and tire size. This value is set by the manufacturer and indicates average value load on a specific vehicle axle at the maximum allowable load. Recommended tire pressure truck can be found in a special table.
Truck tire pressure: table of recommended pressure depending on axle load and tire size (front axle)
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7500 at 8.5 bar |
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6500 at 8.75 bar |
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Truck tire pressure: table of recommended pressure depending on axle load and tire size (rear axle)
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Air pressure in bar at various axle loads |
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10900 at 7.8 bar |
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12000 at 8.0 bar |
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11600 at 8.0 bar |
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13400 at 8.0 bar |
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12000 at 9.0 bar |
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13400 at 8.0 bar |
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Truck tire pressure should be checked at least four times a month. Pressure is measured on cold tires before driving. It should be borne in mind that after a trip, the pressure in truck tires can be 20-25% higher, this is due to the design features.
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Long-term safe operation of the car, reduction of fuel resource consumption, safety of rubber, truck suspensions largely depend on the air density inside the wheel tire. You need to look at the recommended pressure in the tires of a truck in the table. It is necessary to pump air with a compressor into the tires using the data in the table in the manual attached to the vehicle documents.
Importancetracking
Tire pressure control is necessary, since this indicator is tightly related to many parameters of efficient and safe operation vehicle whose wheels are:
- Designed to receive torque from the engine and clutch them with the roadbed. Weak tires can cause the wheels to spin on the rim, which always threatens with serious consequences.
- Tires are an element of transport, including trucks. They absorb and soften bumps from bumps in the road. The lack of air in the course of movement will cause a loss of elasticity of the tires and, as a result, increase the risk of rapid wear of the tread.
- Provide the quality of acceleration and braking of the car, excess and lack of air in the tires has a direct impact on the rate of fuel consumption.
- The stability and smoothness of traffic depends on them.
- Wheels define safe management vehicle, increases the likelihood of spontaneous departure of the vehicle to the side.
- Reducing tire pressure can damage the wheel casing.
The technical condition of the machine ensures a safe state of traffic on the track. Any emergency condition of the car on the road can lead to serious consequences.
To avoid problems while driving on the highway, you need to maintain this criterion at the level recommended by the manufacturer.
Air density parameter in the wheels for each type road transport installed individually by the manufacturer.
Watch the video to learn how to set the right tire pressure.
The driver needs to know the condition of the tires on this moment. In cold weather, tire pressure measurement is carried out at a shorter interval than in summer.
Basic tricks
To determine the level of air pressure in truck tires, dial gauges are used, in which the pressure balancing rule applies, by the elastic deformation force of a spring made in the form of a hollow twisted tube.
The amount of air pressure in the tires of a truck is of great importance, as it determines the proportionality of the load on the tires of the truck. The air density in the wheels of vehicles for the transport of goods must be measured at least twice a week. The most reliable device for this procedure is a pressure gauge with two heads with a graduation of at least 8 bar and a scale with an interval of 0.1 bar.
A truck is a source of income, so to speak, a breadwinner. But if you do not maintain tire pressure in acceptable limits, it can become a source of losses. careless attitude towards operational parameter threatens not only with an accident. Here and fuel consumption, and the cost of repairs, and the purchase of new slopes.
Why is it important to monitor blood pressure?
Wrong pressure in tires - the cause of the following consequences of vehicle operation:
- Reduced tire life.
- Fuel consumption increases.
- Running gear parts wear out.
- The risk of becoming a participant in an accident increases.
- The load on all components (frame, body, cab, engine, etc.) increases.
Maintaining the pressure in the tires of a truck is the responsibility of the driver, and monitoring the performance is the responsibility of the mechanic, foreman, business owner.
Where can I find out what pressure should be?
Standard pressure indicators are indicated in the table, which is contained in the technical documentation for the machine. But if the care and maintenance manual is lost or out of order, you can peep the information in the table on a metal plate attached to the cab body in the doorway, like a Gazelle. But even then it is necessary to take into account a number of factors that affect the degree of tire inflation.
What pressure should a cargo Gazelle have?
For most modifications of cargo Gazelles, the manual says that tire pressure must be maintained at 2.9 atmospheres. However, the manufacturer does not take into account that given parameter may differ depending on the operational features:
- In what mode is the truck most often operated (loaded or empty).
- Tire model. Each manufacturer indicates the maximum allowable tire pressure, giving a guarantee that it will not explode while the truck is moving.
All drivers have their own payment system. Most of them, moving most often empty or half empty, pump 2.9 atm., As required by the manufacturer. Tire pressure cargo Gazelle, which is constantly operated at full load, is raised to 3.5-4.0 atm. Such a system is suitable not only for the Gazelle, but also for tires of other trucks.
Why are truck tires overinflated?
Professional car drivers aim to keep the car in good working order. In order to make the rolling easier and less wear on the rubber, they increase the pressure, making it 0.5 atm. higher than official truck tire pressure charts. At the same time, the ride becomes less comfortable, vibration and shaking is felt more strongly, especially when the car is empty.
Air density control system in the slopes of a truck
There are permissible deviations in the pressure gauge readings associated with the following factors:
- Decreased air compression ratio over time. Deviations of 0.3-0.4 atm. from the data in the table is considered normal if the last measurement was made a month ago.
- If the control is carried out immediately after the end of the trip, the pressure gauge readings will be 20% higher than the standard.
Experienced drivers say: Not only pressure gauges are lying, but also sensors provided by the car manufacturer. During the movement, the rubber heats up, and the air inside the cylinder also. As a result, the sensor indicates that the wheel is overinflated. But as soon as the car stops, the sensor will show normal data as soon as the temperature returns to normal.
Checking the injection of wheels should be done once every two weeks, at least. Otherwise, you can miss the moment. The tire will begin to wear out quickly, the car will be worse controlled, fuel consumption will increase.
Dependence of pressure and radius
Summary tables of permissible pressure gauge readings include a list of tires of various profiles. The pressure also varies. So, if we compare the radius of 17.5 and, say, 22.5, then in the latter case the pressure will be higher. And the difference will be very significant. For a radius of 17.5, the recommended values are:
- before - up to 5.4 atm .;
- butt - up to 6.0.
If the tire is 22.5, then it will be 5.0 / 6.0 atm. respectively. But these figures correspond to the full load of the machine.
Visual signs of inconsistency
During the operation of the car, the rubber should wear out evenly. One-sided wear has nothing to do with it, most likely this is evidence of an incorrectly set wheel alignment. But if the tire has wear in the center of the tread, then you are driving on overinflated wheels.
The reverse situation is with insufficient pumping. In this case, wear is visible on both sides of the center, and the same. In any case, it makes sense to think, correct the situation and watch how the tread wears off. Indirect symptoms are increased consumption fuel, stroke severity, shaking, vibrations. To always be able to control the situation, you need to carry a pressure gauge (mechanical or electronic) with you.
The most important indicator that affects the safety and comfort of driving is such a parameter as the correct pressure in the wheels of the car. Without the right conditions, it is impossible to ensure safe use auto.
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What should be the pressure in the tires of the car (table) we will consider in more detail. Many car owners are concerned about the pressure in the tires of their cars. It depends on how quickly the process of tire wear occurs, the nature of the behavior of the car on the road, fuel consumption, braking distances and much more. Tire pressure, especially in winter, affects safety. Based on the above, it follows that every vehicle owner should know what tire pressure should be and make regular checks.
Car tire pressure
This value is not constant. Depends on the temperature outside, and in what conditions it is operated iron Horse. In winter, the pressure will be lower, because due to the increase in temperature, the air masses expand. At fast driving the surface of the tires of the wheel heats up, which also leads to an increase in tire pressure.
Factors affecting the choice of tire pressure:
- car model;
- weight and carrying capacity of the machine;
- wheel diameter;
- the nature of driving;
- road condition;
- season;
- winter or summer tires installed on the machine.
As a rule, manufacturers indicate what should be the pressure in the tires of a car. specific brand and models.
Manufacturers indicate what should be the pressure in the tires of a particular brand of car
What happens if the tire pressure is not respected
It is very important not to violate the recommended pressure. This will help you avoid many serious problems and breakdowns. The manufacturer indicates the recommendations not to violate them, but in order to operate the car correctly and as efficiently as possible.
Many unpleasant situations on the roads arise precisely because drivers are rather negligent in checking this parameter. Incorrect pressure in the tires of the car is especially acute when overloaded. On slippery roads V winter time there are problems when braking. It is the trucks, with emergency braking, often turn over because of what was insufficient pressure on one of the wheels.
There is a possibility of breakage of body parts, as well as failure of the suspension.
Problems arising from non-compliance with the rules:
- car skids and rollovers during heavy braking;
- it is difficult to hold the steering wheel, the car skids;
- fuel consumption increases;
- goes out of order steering system and a rail under constant pressure;
- rubber wears quickly and unevenly.
Both under-inflated and over-inflated tires will create problems sooner or later.
If there are problems with tire pressure, the car may skid
Under-inflated tires
If the pressure is below normal, then the tire roll increases when turning. The car can simply be taken off the road or the wheel can be disassembled. Serviceable steering does not affect the situation. How many terrible accidents happened due to an oversight of drivers.
What are the dangers of under-inflated tires:
- tires wear out quickly
- tires overheat and wear out much faster;
- during turns, the car pulls more to the side.
Inflated tires
Pumped tires are also bad for cars. Wheels get stiffer and roll easier, Grip gets worse. Deteriorating management vehicle. During a hit in the pit, not only tires can be damaged, but also the suspension and even some body elements.
Consequences of pumped tires:
- rapid wear of the car suspension;
Due to tire inflation, there can be a quick wear of the car's suspension
- the ride of the car becomes stiffer, which increases the load on the suspension;
- noise in the cabin from the wheels.
Dependence of tire pressure on climatic and road conditions
The condition of the roadway affects the comfort of being behind the wheel. If the roads are good, you can safely use the tire pressure table data indicated in the car manual and enjoy driving without fear of car breakdowns and troubles along the way. If the roads leave much to be desired, then you can under-pump the wheels a little. This will soften the suspension and add comfort. In winter, leaving the street from garage box in the cold, without fail measure the pressure. It is necessary to monitor the indicators in the off-season.
What should be the optimal pressure
Every car has a user manual. Study it, it contains information on what is the correct tire pressure (table) recommended specifically for your car. If for some reason there were no instructions, then this information should be indicated on inside driver's door. Specified information indicates the lowest air pressure in the vehicle's tires recommended by the manufacturer.
Pressure in tires Accent
Do not focus on the inscription about correct pressure indicated on the rubber. It shows the maximum permissible value, but you need to focus on the recommended. It is best to measure indicators in morning hours when the temperature of the wheel and air are approximately the same. In this case, the measurements will be more accurate.
The recommended tire pressure in winter and summer is influenced by the weight of the vehicle and the diameter of the rims. The measurement should be carried out on all 4 wheels, and also monitor the condition of the spare wheel. If instead of a standard spare wheel you have a “stowaway”, then keep in mind that the indicators in it should not reach the norm a little. There is a special tire pressure table by size, it also indicates the norms, taking into account the brand of car and seasonality.
How to measure pressure: the correct sequence
Main measurement steps:
- Unscrew the nipple cap.
- Use a pressure gauge to measure tire pressure. The device must be worn tightly and the measurement should not "poison" the air. Otherwise, the measurements can be considered inaccurate.
- Screw on the cap.
- It is necessary to check all four tires, only in this way the readings can be considered accurate.
Tire pressure check
In summer
It doesn't matter if it's winter or summer time year: tire pressure should be the same all year round. Experienced car owners reduce the recommended rate by 5-10%. It's connected with big amount holes in the roads. Under-inflated tires make the ride softer, which adds comfort to the driver and his passengers.
in winter
- Increases the stability of the car on slippery roads.
- The braking distance is shortened.
- Suspension softens.
Increased vehicle stability on slippery roads
Do not attempt to measure tire pressure visually. This is impossible to do. Only a worker can estimate this approximately. service center with very great experience work. An approximate result cannot save you from trouble, so for your own safety, visit a specialist regularly, or take measurements yourself.
You can slightly exceed the value. In this case, you will save on fuel consumption. However, do not exceed the indicators indicated on the tires, this will only lead to trouble. If you are going to travel to far distance or you need to carry a heavy load, then it is worth increasing the tire pressure.
When inflating tires, always consider the difference in heat. On a sunny hot day, tires heat up even in a car that is just standing, consider this.
