Is it normal for the size of the free stroke to change when the brake is pressed continuously?

The longer stroke is due to the normal wear and tear of the brake pads, the brake oil level drops, and the vacuum power required increases!

The stroke of the brake pedal has become longer, and the car can not be stopped as it was when the usual braking force is pressed, and the consequence is that the braking distance becomes longer. If the braking distance becomes longer, the brake response is not sensitive, and it feels like the brake pedal travel becomes longer.

There is also the fact that we all know that all four wheels of the car have brakes, and the front wheel system reflects the brakes more directly"Tight"The rear wheel brakes are better"Loose", if the front wheels are locked up when braking, but with the tail of the vehicle upturned. Generally, the rear brakes are soft.

When the brake is pressed continuously, the free stroke of the pedal does not change. The free stroke of the brake pedal refers to the pedal stroke when the pedal is pressed until the brake takes effect, the size of the free stroke can be adjusted by adjusting the limit screw on the brake pedal, and it has been fixed after adjusting the free stroke, so even if the brake is stepped on continuously, the free stroke is also unchanged, and the height of the pedal when the brake is in effect.

If there is a change in the free stroke, it means that there is a problem with the brakes, and there should be air in the pipeline, which will cause poor brakes, and the four wheel cylinders should be deflated, and the brake fluid should be replenished at the same time, so that the brakes can return to normal until the stroke has not changed.

When the free stroke is not suitable, it is only necessary to loosen the lock nut of the master cylinder pusher, twist the pusher, and change the free stroke by changing its length so that the gap between it and the piston changes. After the adjustment, tighten the lock nut again. 1. The free stroke of the brake pedal is the premise to ensure the normal operation of the braking system.

2. When you suspect that the free stroke of the brake pedal is not suitable, you can use a ruler to stand between the brake pedal and the bottom plate of the cab, press down the brake pedal with your hand until there is resistance, and write down the ruler reading. Then relax the pedal and look at the ruler reading, the difference between the two readings is the free travel of the pedal. 3. During the inspection, you can gently press down the pedal with your hand and measure the free stroke of the pedal when the feel becomes heavier, and its value is not more than 45mm.

The effective stroke of the brake pedal is 135mm, and the total stroke is not less than 180mm. The distance from the pedal to the steering wheel rim is 598mm or more. If the inspection does not meet the specified value, it can be adjusted by adjusting the length of the pushrod, and it should be noted that the free stroke of the brake pedal should not be affected by the additional carpet thickness.

Check to see if there is air in, or the pressure of the brake master cylinder is not good, whether the bond between the brake pads and the brake disc is smooth, and if the brake fluid deteriorates and produces foam, this will also happen, but this rarely happens. [If you have a problem with the car, ask the car master.] 4S shop professional technician, 10 minutes to solve.

Mostly, yes.

The brake free stroke is similar to the clutch pedal, and the brake pedal travel also includes free travel and active travel. If the free stroke is too large, the effective stroke will be reduced, which will directly affect the braking effect and braking sensitivity. If the free travel is too small, the brakes will be delayed.

When the brake pedal is released after braking, the braking force cannot be released quickly and completely, and the brake still has braking force, which is called braking resistance. Brake delay will reduce the dynamic performance of the car and increase fuel consumption. At the same time, if you can't release the brake for a long time, it will also cause the brake to overheat and the brake to fail.

The free stroke of the brake pedal is the premise of ensuring the normal operation of the braking system. When there is a suspicion that the free travel of the brake pedal is not suitable, you can stand between the brake pedal and the cab floor with a ruler. When the brake pedal is pressed by hand until there is resistance, a reading of the ruler is recorded.

Then relax the pedal and look at the ruler reading again. The difference between the two readings is the pedal free stroke. During the inspection, press the pedal lightly with your hand, measure the free stroke of the pedal when the hand feels heavy, its value is not more than 45mm, the effective stroke of the brake pedal is 135mm, and the total stroke is not less than 180mm.

The distance from the pedal to the rim of the steering wheel is greater than or equal to 598 mm. If the check does not meet the compliance value, it can be adjusted by adjusting the actuator length. Note that the free travel of the brake pedal should not be affected by the thickness of the additional carpet.

Private cars basically use hydraulic braking system, and the free travel of pedals of different models may be different, which should be judged according to the value specified by the trillion rubber model. When the free stroke is not suitable, it is only necessary to loosen the lock nut of the master cylinder pusher, twist the pusher, and change the free stroke by changing its long wheel degree so that the gap between it and the piston changes. After the adjustment, tighten the lock nut again.

Hello, this means that the brake pad is too worn, if the brake pad can still be used, just adjust the brake pedal free travel. [If you have a problem with the car, ask the car master.] 4S shop professional technician, 10 minutes to solve. 】

Hello, drain the brake oil air, if not, you have to replace the brake master cylinder. Hope mine can help you. [If you have a problem with the car, ask the car master.] 4S shop professional technician, 10 minutes to solve. 】

Summary. Hello, of course you can. If the free travel of the brake pedal is too small, then it is difficult for us to operate when the brake is applied.

It is likely that all of a sudden there will be only a sudden braking, which is also bad for safety. Increasing the free stroke a little longer will help us to control the braking force more flexibly.

The brake pedal free travel is too small or no free travel will cause my brake free travel to be a little shorter, so I can adjust it a little longer.

Hello, of course you can. If the free stroke of the brake pedal is too small, it is not easy for us to operate when we step on the brake. It is likely that all of a sudden there will be only a sudden braking, which is also bad for safety.

Increasing the free stroke a little longer can help us to control the braking force more flexibly.

Does this affect the braking distance?

Absolutely. After the length. Generally speaking, the braking distance will be longer than before.