| 摘要 |
PURPOSE: An automatic air discharge device is provided to prevent environmental pollution and to reduce waste of oil by flowing oil into a reservoir tank through a return line with one worker. CONSTITUTION: An automatic air discharge device discharging air from the hydraulic line of a clutch system comprises a magnetic valve(3) opened when a switch(2) is turned on; a drive motor(4) driven when the magnetic valve is opened; an air return line(13) between the magnetic valve and the drive motor; an air discharge check window(5) checking an air discharge with the drive motor; a return pipe(6) connected to the air discharge check window; a reservoir tank(8) and a reservoir tank cap(7) connected to the return pipe; a master cylinder(10) connecting to the reservoir tank and generating hydraulic pressure with a piston action when a driver steps on a clutch(9); a hydraulic line(11) transmitting hydraulic pressure from the master cylinder; and an air discharge hole(12) discharging air from the hydraulic line. Thus, a worker checks that large quantity of bubbles passes through the air discharge check window when air is not bled but pure oil passes through the air discharge check window when air is completely bled.
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