Advice 1: How to bleed brake master cylinder

Those car owners who at least once in their life changed in the car independently of the main brake cylinder, knows how difficult it is to pump. This procedure anyone can bring to the "white heat".
How to bleed brake master cylinder
You will need
  • assistant,
  • - wrench 10 mm,
  • - brake fluid – 1 FL.
Despite the seeming simplicity of the main pumping cylinderand to carry it out alone, and yet no one still failed.
Illuminated the process is reduced to the following sequential actions of both parties:
assistant is placed on the driver's seat of the car,
- colleague closes the fingers all the holes in the cylindere, except the first;
assistant smoothly presses the brake pedal, and sinking it to the end, gives the partner a signal;
partner closes the finger hole of the cylinderand,
- the helper returns the brake pedal to its original position.
The above actions both parties of the process flow is repeated until then, until the liquid from openings of the front section of the main brake cylinderand in the moment of pressing on the brake pedal, the assistant will not start to be extruded jet.
At this stage (liquid filled section of the cylinder, and the brake pedal is in its home position), companion pipe is connected to the front hole of the cylinder (the pipe is twisted almost completely).
The assistant gives the signal to a colleague about the beginning of them pressing on the brake pedal, and a partner at this point carries out the final tightening of the fitting of the tip of the tube.
Finished with the front, start pumping the second section of the master brake cylinder. Pumping the brake fluid in this case is similar to the previous method.
Attach all tubes, check the brake system for the presence of air. In the case of a positive result, it is pumped full.

Advice 2 : How to check brake master cylinder

Correct work of the brake master cylinder necessary for the functioning of the entire braking system of the car. The observation of the behavior of the car during braking, as well as delivered on time verification of units can protect the driver from a lot of trouble on the road.
How to check brake master cylinder
You will need
  • - wrench set;
  • - screwdriver;
  • - gloves;
  • - rubber bulb;
  • assistant to pump the brakes after checking brake master cylinder.
Open the hood of the car. Locate the side with the brake fluid and remove the sensor low alarm level. Unscrew and remove the sensor. Open the reservoir cap and using a rubber bulb siphon liquid. Pay attention to the fact that she brake fluid is highly toxic. You need to wear gloves to cook a small amount of water. When getting brake fluid on car paintwork the paint can oblasti. If this happens, you should immediately wash the traces of liquid water.
Take the key "to 10" and remove the brake tubes. Pull the tube from the brake master cylinder.
Disconnect the cylinder from the vacuum amplifier. To do this, use a key or a swivel head "by 17". Disconnecting the brake master cylinder side and the brake fluid, start his examination. Disassemble the cylinder, check the mirror for scratches and other defects. Please note on the elasticity of the spring, clean the surface of the working piston. Do not touch parts with mineral fluids. Inspect the rubber seals. To avoid deformation of rubber parts, rinse and dry them with compressed air, not exceeding a set manufacturer time 20-25 sec.
If there are suspicions that the sealing design of the main brake cylinder, use the stand for testing. Opening and closing of the valve cylinder, rotate the flywheel, forcing the movement of pistons. Continue the rotation and keep the pressure in the cylinder. As soon as it becomes work, stop and note the time. The working pressure of the cylinder shall be stored not less than 5-7 seconds. If the observed fluid leakage and rapid drop in pressure, the tightness is impaired.
Is the advice useful?