What do you need to know before you pump the brakes
Any driver will find it very useful to know how to pump brakes, since this procedure is not very complicated, but it happens after many manipulations related to the braking system. So why spend extra money, giving a car in the service station, when you can pump the brakes yourself?
Procedure for pumping brakes
You can pump brakes by yourself, and you can pump them with an assistant, whose job is to press the brake pedal on command. The procedure for pumping the brakes should be seen in the manual for a particular car.
If the scheme is not specified, then pumping is made in the form of the letter Z. This means that you have to pump the right rear – left rear – right front – left front wheel.
To pump the brakes you will need a container of brake fluid and a clear rubber hose.
How to Pump Brakes
First you need to get easy access to the pumping fittings of the brake system. To do this, you can put the car on an elevator or pad, and remove all the wheels. Next:
1. Pour new brake fluid into the reservoir of the main brake cylinder. 2. Don’t forget to clean dirt from the fittings near each wheel and pour some “brake fluid” into the prepared container. 3. Connect the hose to the connector, and the other end dip into a container with the brake fluid. 4. Instruct your assistant to depress the pedal several times and keep it depressed so that the fluid will flow. 5. Unscrew the fitting, and the fluid will run into the container you prepared. Carefully watch the level of liquid in the tank and top up if necessary. 6. Repeat the previous 2 points until the brake fluid flows clear “brake” without air bubbles, and screw the connector. 7. Repeat the same procedure on the other wheels.
When to pump the brakes
The brakes are pumped when you need to remove air from the braking system. This often happens when replacing the brake fluid, which is done approximately every 50-60 thousand km. mileage, or once every 2 years.
Pumping the brakes is also necessary after repairing the brake system, whether that is replacing the brake pads or repairing/servicing the brake discs, brake cylinders.
The pedal will also tell you that you need to pump the brakes – it will become soft, it will start to sink in. And the brakes will become more sluggish. However, it can also indicate a more serious problem related to the brake disc or pads. So if pumping did not help, it may still be worth seeing a specialist – with the brakes do not joke!
How to Pump Brakes Without an Assistant
How to pump brakes with a partner has already been described above. But what to do if there is no such a nearby, and pumped brakes necessary?
You can get out of the situation in several ways.
You can pump the brakes alone if you have a gas pump. The meaning is the same as when pumping with an assistant, only instead of him the pedal will be pressed by the gas pump. Consequently, you need to depress the pedal several times, hold it depressed, set the stop and start bleeding brake fluid. When the fluid runs the stop will start to press the pedal itself to the floor.
Pumping the brakes with a syringe. It is necessary to hermetically insert a syringe into the exact same cap as on the tank. Then, having previously filled the syringe with brake fluid, replace the usual cap with this device, unscrew the connector, put a container and pump pressure with a syringe.
One more way with the modified cap. In the cap, similar to the one installed on the tank, you need to cut a car nipple. Then put the cap with the nipple on the tank, then put one end of the hose with a clamp to connect the cap, and the other on the spare, pumped no more than 1 atmosphere. Open the fitting and bleed the fluid with air bubbles.
These are basic ways to pump the brakes without an assistant, but many drivers have their own methods, which, however, not much different from the above.
Mistakes when pumping brakes
1) You can not mix different brake fluids. If you mix mineral brake fluid with glycol – it will damage the rubber seals hydraulic drive and clog the system with clots. It is also not recommended to mix different fluid grades (DOT 3, DOT4, DOT5) as they have different boiling points and this will reduce their performance.
2) Do not let the brake fluid level drop below the minimum mark when pumping the brakes. If you do not watch the level of brake fluid in the tank and it drops below the minimum level, air will enter the brake system.
3) Do not create high pressure in the brake tank. When you bleed the brakes yourself, do not overpressure the tank, or it may burst. The recommended pressure is 0.8 atm.
______________________________________________________________________________________________________МОЙ ОПЫТ ЗАМЕНЫ ТОРМОЗНОЙ ЖИДКОСТИ____________________
Changed the brake fluid alone, by draining through a fitting connected to a clear plastic tube and bottle. As it was draining I poured fresh fluid into the brake tank. The main thing is not to hurry and in time to pour the brake fluid into the tank, so as not to get air. The fluid trickled out very slowly, so that only the lazy could not catch it in time. I changed the rear right, then the rear left, then the front right and the last front left. Poured the fluid until in the bottle, there was a layer difference between the old cloudy fluid and the fresh clear fluid. To see the layer difference between the old cloudy fluid and the new clear fluid, each side is poured into an empty bottle. In this case, there is a guarantee of a complete replacement of the old fluid with the new of the entire brake system. Just under a liter was enough to replace it in my brake system. If there was no air in the brake system, then there is no need to do additional forced pumping. The principle of pumping is simple and does not require any equipment. The price of the issue is less than ten euros, this is the cost of a liter of brake fluid, time spent three hours and joy full of pants from what was done with my own hands.
How to pump the brakes with my own hands – procedure for pumping brakes
Hello everyone. I propose a small tutorial on how to pump the braking system with or without a partner – one person.
Well, as a result of simple and simple actions to diagnose the presence of brake fluid, you have come to the conclusion that your car needs pumping brakes. Recall that pumping the brakes is required in the following cases:
Have you noticed that the brake pedal has become “softer” and its travel has increased Have you repaired or serviced the brake discs or replaced the brake pads, or have a complete brake system tune-up performed.
Definitely in these cases you need to pump the brake system to remove the air. Procedure for pumping the brakes
As always, you have the choice of how to perform the pumping. You can go to a car service center. There you will be pumped using a brake bleeder. This is a modern and effective device, designed to remove the air from the braking system. A professional device for pumping brakes is equipped with adapters that allow you to work with many existing models of cars and trucks.
The second option is to pump the brakes with your own hands. In principle, the procedure for pumping brakes is the same for any system. You will need a simple self-made device for pumping brakes from a syringe, tubes (hoses) and a plastic container. Options for pumping yourself: two people or one person, i.e. yourself.
Scheme of pumping brakes: you should start from the wheel, which is on the far distance from the brake pump.
mechanism of rear right wheel; mechanism of front left wheel; mechanism of rear left wheel; mechanism of front right wheel.
Pumping the brakes with a partner We remove the plug that covers the pumping connection of the brakes, and put a transparent hose on it. The free end of the hose is lowered into a container partially filled with brake fluid.
Your partner presses the brake pedal with intensity 3-4 times and leaves it depressed. You gently unscrew the pumping connector until the brake fluid begins to be displaced into the reservoir. You can tell if air is escaping by the bubbles in the reservoir fluid.
Then tighten the bleeder fitting, and repeat this procedure in the same manner on the other wheels. Replace or refill the brake fluid of the type recommended by the car manufacturer. If the brake pedal is still “soft” after pumping, check the brake pad wear, or repeat the pumping procedure again.
Pumping brakes without a partner
This is quite a labor-intensive task, but sometimes it happens. As a tool for pumping the brakes, you will need: identical to your brake fluid reservoir cap, a syringe and a container. This is the design:
We insert the syringe tightly into the reservoir cap with a “sealant”, then we screw this device onto the brake reservoir, having previously filled the syringe with brake fluid. Unscrew the outlet fitting of the circuit to be pumped. Install a container to collect the leaking brake fluid. Then use a syringe to pump out the brake fluid.
Another way to pump the brakes without an assistant will require you to have a bar or other support. Filling a full brake tank, you pump the brake pedal several times and fix it in the pressed state. Then perform the standard procedure: unscrew the connector and wait until the flow of brake fluid is slightly uniform. Screw in the brake pumping nozzle.
Release the brake pedal and repeat the procedure. After the brakes are pumped, top up the brake fluid with the proper brand. That’s all. You can go for a test drive the braking system, while observing the precautions.
And the way of pumping brakes, which I use when there is no partner. At the store I bought a device like this:
Unscrew the cap on the brake fluid reservoir. 2. Fill the tank with brake fluid up to the full and screw the cap of this device. 3. The pump nozzle (on a hose) connected to the pumped spare, now if you have a compressor connected directly to it, the pressure in the system is set to 3 bar. 4. Produce pumping as indicated in the first post.
Features of this pumping reduces to control the brake fluid in the tank.
In continuation of the topic, answering the question about the need for a running engine when pumping brakes with ABS. No difference, repeatedly tested, I pump with the engine running and I think this pumping is correct, some people just remove the fuse responsible for ABS and pumping, someone does it on the engine off. This is a clip from an article on pumping ABS brakes.
Pumping brakes with ABS
Due to technological progress almost all modern cars have a brake system with ABS function. The automatic locking system protects the wheels of the car from blocking during emergency braking by controlling the speed of their rotation. Thus, the wheel sensors transmit impulses to the ABS electronics unit, whose response regulates the entire braking process.
Checking the condition of the car, including the braking system, is very important. Pumping brakes with ABS is necessary to remove excess air from the hydraulic drive, which could get there during repair or replacement of the brake fluid. The presence of air in the mechanisms is an unnecessary phenomenon, because it negatively affects the operation of the brakes. The need for pumping can be identified independently by pressing the brake pedal a few times. If when you press the pedal you feel its excessive smoothness, and a sharp stroke, it is necessary to resume the tightness, and pump the brake system of your car. This can be done both with the help of professionals and by your own efforts. Use only new brake fluid and only the one that suits your car’s specifications.
Scheme of pumping brakes, or, in other words, the sequence of pumping brakes, should look like this:
front left wheel mechanism; front right wheel mechanism; rear right wheel mechanism; rear left wheel mechanism.
front right wheel mechanism; front left wheel mechanism; rear left wheel mechanism; rear right wheel mechanism.
Beginning the pumping procedure itself, provide comfortable access to the appropriate mechanism you will be working with – remove the desired wheel, or drive the car to the inspection pit. Procedure for pumping brakes.
Remove the cap from the expansion tank. Unscrew the brake bleeder fitting and clean any build up. Place a clean hose on the fitting of the appropriate brake mechanism, with the free end in a reservoir filled with brake fluid. Because the reservoir is full, no air will enter the cylinder through the fitting. Start the engine and leave it running. Press the brake pedal several times (your helper can do this) until the brake fluid flows through the hose into the reservoir. Do this for as long as the brake pedal will allow, until it hits the floor. Pump the brakes until all air is bled from the mechanism to the outside, while constantly replenishing the tank with new brake fluid. The tank must not be completely empty, otherwise it will fill with air again. This system is used for vehicles with manual transmission. Screw in the abs pumping connector. Screw it backwards on the pedal to prevent air from entering. Also remove air and fluid from the clutch hydraulic system. Top up the fluid in the expansion tank to the maximum mark. Check the action of the brake pedal, it should be depressed to 1/3 full pedal stroke. In any case, before you start pumping, read all nuances in car technical documentation, (mursilka) Full topic is: carisma-club.su/index.php… &pid=5539&st=0&#entry5539
MOST IMPORTANTLY, BEFORE YOU MOVE OFF AFTER PUMPING THE BRAKES, DEPRESS THE BRAKE PEDAL SEVERAL TIMES!
