Ask the masters for advice, the position of the air brake adjustment screw of the truck

1. On the adjustment arm, you see that the brake bowl is connected and there is a rotating lever with the rear axle in a line deep into the brake drum is installed on the rod, the adjustment method is to tighten it counterclockwise, and then the front wheel is loosened clockwise 3 buckles, the rear wheel is loosened 2 buckles, the adjustment arm is equipped with a spring, every time a buckle is released, the spring will click. Some nuts have locking rings. Use a 17-19 plum blossom to top it and hit it with a small hammer.

It will automatically return to its position after it is adjusted.

2. Due to the design of different brands of cars, the direction of adjusting the arm may be different, and the adjustment method of the multi-bridge car may be different, but it is generally adjusted to the tightest (the tightening spring will not sound) and then loose, and the loosening is appropriate.

3. Can it be burglar-proof?The car thief is more powerful than the repairman, and when he gets into your car, you can cheer up, so to say that you can prevent theft is to deceive yourself and deal with the layman.

4. Now many cars are equipped with drying devices, there is no need to deflate, there is no such device depends on the situation, I used to put it once a week, there is a switch with a spring under the gas storage jar.

Generally, it is to adjust the small fly, the action is the front right, the back left is very simple, the front clearance is generally two buckles, and the back is one buckle.

Frequently tune the point.

Brakes are crucial for cars, especially for trucks that must be loaded frequently, and brake pad damage can be much more serious than that of ordinary cars. Therefore, when it is found that the brakes are weak, everyone must Zheng Zheng to calibrate them. Do you know how to adjust the screws for truck brakes?

Truck brake adjustment screws explained in detail.

First of all, we first fixed the car tires with a triangle wood, and then put the brake standard air pressure enough and then let go of the brakes, and then check whether there is oil leakage in the skeleton seal of each tire, and did not ask that it can be gradually adjusted later. After looking for the brake drain plexus and dry screws, if everything is normal, screwing the brake pads in the clockwise direction will bring it closer to the brake disc, and if it is screwed in the opposite direction, it will be the other way around. If we are worried about the reversal, we can observe the adjustment arm back to the hole.

Under normal conditions, the adjusting arm should move to the direction of the brake master cylinder, if it moves outward, it proves that the adjustment is reversed.

Trucks often have to adjust the brakes because when the brake pads are damaged, the gap between the brake pads and the brake disc will increase, so in the case of use, the brakes will feel weak, and the working capacity of the braking system will be sharply reduced. Adjusting the brakes is in fact adjusting the distance between the brake pads and the brake disc, and if there is less understeer, the braking amplitude will be increased. Brake adjustment must be a certain method, if the driver is not familiar with this piece as much as possible or to a professional car repair master to deal with.

Millions of car purchase subsidies.

Brakes are extremely important for cars, especially for trucks that need to carry goods frequently, and the wear of brake pads will be much worse than that of ordinary cars. Therefore, when we find that the brakes are weak, we need to adjust them. So do you know how to adjust the screws for truck brakes?

Truck brake adjustment screw**First of all, we first fix the car tires with triangle wood, then turn the brake air pressure enough and then release the handbrake, and then check whether there is oil leakage in the oil seal of each wheel, and then we can start to adjust it after there is no problem. Once the brake screws are located, the brake pads will normally be closer to the brake disc by turning them clockwise, and the opposite is true when twisting them counterclockwise. If we are concerned about the reversal, we can observe the adjustment arm.

Under normal circumstances, the adjusting arm should move in the direction of the brake cylinder, and if it moves outward, it proves that the adjustment is reversed.

The reason why trucks need to adjust the brakes is that when the brake pads are worn, the gap between the brake pads and the brake disc will become larger, so the brakes will feel weak when used, and the braking ability will be greatly reduced. Adjusting the brake is actually adjusting the distance between the brake pad and the brake disc, and if there is less virtual position, the braking strength will be improved. Brake debugging requires certain skills, if the owner does not know much about this aspect, it is best to hand it over to a professional mechanic to solve.

The analysis is as follows:

It depends on whether the car you are driving is an air brake (the air brake is the kind of brake cylinder that will explode if the air pressure is less than 4) or a foot brake (not an air brake. You need to apply the foot brake to stop).

If it is an air brake. First of all, the air pressure of the car should be increased to more than 5. Before you can release the hand brake (there is a special hand control valve in the cab) Before starting to drive, you must see that the air pressure is more than 6 before driving.

Otherwise, stepping on the two-foot brake will cause it to be difficult to start the car. If you want to brake off the air, it is best to adjust the safety valve of the savings bucket to 9 air pressure and automatically exhaust it, so as not to have insufficient air pressure.

Foot brakes are less of a hassle. Wait until the air pressure rises to 4 or more, and you can drive.

First tighten the screws in the opposite direction, and then loosen the three buckles in the direction, when loose, the driver should feel that if the braking effect is still not good, it is best to maintain it, change the brake pads, and the brake is very important.

Why large trucks love air brakes, just look at the principle.

The air brake also needs to be adjusted, because the brake pads will wear out, and the brake is adjusted mainly through the adjustment arm, you first tighten the bolts on the adjustment arm in place, and then loosen it 180 degrees. If it is an automatic adjustment arm, there is no need to adjust it.

Hello, release the handbrake with full breath. The adjustment arm goes clockwise to the end, and it is only necessary to release it for half a turn.

My experience First tighten the screws in the opposite direction and then loosen three buckles in the direction When you loosen it, you will feel it If the brake effect is still not good, it is best to maintain it Change the brake pads The brake is very important I wish you a safe journey.

First tighten the screws in the opposite direction, and then loosen the three buckles in the direction, when loose, you will have a feeling, if the brake effect is still not good, it is best to maintain it, change the brake pads, the brake is very important. Air brakes are your feet that control the opening or closing of the air valve, and control the compressed air to the individual brake cylinders to control the brakes. As for that reliability, they all have certain hidden dangers.

Oil test braking is generally used for small cars, and air pressure test braking is used for large passenger trucks. Because the braking force used by the small car is lower than that of large passenger trucks, the air pressure test braking is generally only used for large passenger trucks.

The "air brake" system of the truck, the specific device:

Air compressor (connected to the engine through the belt), air reservoir, high-pressure controller (adjust the pressure of compressed air, mainly to control high pressure, normal working pressure at 4-8 atmospheres), relay valve (brake end exhaust), brake master cylinder, front brake cylinder, rear brake spring cylinder (now are all air brakes - the truck does not reach the minimum air pressure 4, the rear wheel is in the braking state, the vehicle can not drive), safety valve (generally on the air reservoir, to reach the maximum air pressure exhaust), Dry irrigation (separate the moisture in the compressed air, 0° in winter to prevent the pipeline from freezing), high and low pressure alarm.

Working principle: step on the brake pedal, open the master cylinder valve (all are one-way valves, can only take in, can not come back), compressed air enters the front brake cylinder and rear brake spring cylinder through the check valve, pushes the brake arm, brake cam rotation, and pushes the brake shoe (now most of it is asbestos, brake pads with copper wire) to open and brake drum (cast iron), close contact, to achieve the purpose of braking.

Now they all use a dual-circuit, cross-braking line system to ensure that there is a leak in the pipeline, as well as brakes.

Tight clockwise, loose counterclockwise.

rear wheel (1; 2；3；axis) is as follows:

Tighten clockwise first, and then loosen 3 buckles (referring to 1 buckle for each ringing of the bolt spring), the front wheel is tightened and then loosened 4 buckles, and the waist wheel is tightened and loosened 3 buckles.

Air brake adjustment method for large trucks:

1. The air brake responds quickly, the brake is rough and the force is large (the air pressure is high, and it can reach 8 atmospheres). Air brakes are mostly used in large trucks and buses, the car has a large space, the braking force required is large, the use distance is long, the response speed needs to be fast, and the increased cost is reflected in the proportion of the whole car;

2. The working mode of the air brake is: the brake pedal is connected to the tie rod to control the closure of the compression gas tank, the air storage valve is opened when the brake is stepped on, and the air flow is transported to the brake convex shaft of the four wheels through the air pipe, and the shaft body rotates to act on the brake hub with the flange to act on the brake hub to achieve the purpose of braking. This working mode is equivalent to the brake pedal directly controlling the opening and closing of the air transmission, so it is difficult to grasp the amount of air transmission, so it is normal for the air brake to be stiff than the oil brake;

3. The structure of the oil brake is simple, the installation space is small, but the brake master cylinder, sub-cylinder, oil cup and connecting pipeline are required, and no other auxiliary equipment is required; Air brake is much more complicated, in addition to the brake master cylinder, sub-cylinder, brake pipeline, there are air pump (connected to the engine through the belt), air reservoir, high-pressure controller (adjust the pressure, the vehicle can reach 8 atmospheres), relay valve and other components, the installation space is large, the structure is more complex, and in order to ensure safety, the rear brake cylinder of the car is now the air brake (increased cost, complex structure).

Adjustment method of truck air brake:

1. The steering wheel has brakes, the rear eight wheel brakes are not good, the master cylinder and relay valve are no problem, then it depends on whether there is a problem with the brake pot and brake pads;

2. It is easy to see that the teeth of the adjustment arm are seriously worn and cannot be stopped;

3. In addition, it depends on whether the main cylinder is connected to the last eight wheels of the gas 21, because the gas on the main cylinder is greater than the force of the lower gas, and if it is reversed, it will appear that the steering wheel brake is too smart and the rear effect is not good.