| 摘要 |
<p>PURPOSE:To provide a hydraulic source device which allows a user to check the amount of stored liquid with his eye (s) and by which the duration of maintenance inspection can be extended. CONSTITUTION:An aperture part 6 is formed through an upper plate 2 of a box-shaped tank 1 storing working liquid therein and by means of the aperture the inside can be checked with eyes. On the inner face of a side plate 7 in the tank 1 display members 8, 9 displaying the upper limit and lower limit positions of the stored liquid amount are arranged vertically in a separated manner. Cover members 16, 17, 18 for shielding from the outside the upper plate 2 in which the aperture 6 is open are arranged detachably. With such a constitution a liquid surface measuring function can be obtained without requiring liquid tight means in the tank 1.</p> |
