From falls screw jack's thread non-self-locking action, is loaded with the brake.
自降螺旋千斤顶的螺纹无自锁作用，装有制动器。
2
The person on the car, and then on the brake pedal is motionless, the car under put irritating to repeat the process until the brake fluid flip so far no air, then loaded back to screw.
The utility model relates to a brake flexible shaft steel wire clip head, whose steel wire is tightened and fixed in the bore of the clip head by screw.