Why does the brake react slowly? There are probably the following aspects:
(1) The pedal is too far away.
(2) There is too little brake fluid in the brake master cylinder, or the hole is blocked by impurities, the master cylinder parts age and swell, and even deform or be overturned.
(3) The parts of the brake master cylinder are so worn that they cause loose oil leakage, the oil return valve is not sealed properly, and the spring of the oil outlet valve is broken.
(4) The parts of the brake cylinder are swelled and swollen, the piston is blocked, and the active parts of the cylinder are badly worn, resulting in loose connections and oil leakage.
(5) The brake shoe is badly worn, the brake clearance is relatively large or the clearance is not installed properly.
(6) The brake drum is not round, causing grooving or abrasion. The outside of the brake shoe is stained with oil, which becomes very hard to burn, and the rivets are obvious.
(7) Oxygen comes in the brake system, or the temperature inside the brake is too high, the brake fluid in the pipeline vaporizes, causing air resistance.
(8) The oil pipe is not round, the connection is not tight, the oil leaks, the hose is aging, broken or blocked by impurities.
If you encounter this situation in the process of using the brake, you can try to troubleshoot from the above points.
