| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a hydraulic oil tank capable of preventing the early deterioration of hydraulic oil, at the same time, increasing the effect of radiation in the tank and preventing a leak of oil from a hydraulic equipment or the like. SOLUTION: In a hand-guide type vibration roller using hydraulic motors 14 and 15 rotated by hydraulic oil from a hydraulic pump 19 as a driving source, a hydraulic oil tank 9 supplying hydraulic oil to the hydraulic pump 19 is constituted of an enclosed type main tank 11 and a sub-tank 13 including an air- reserve 13a connected to the enclosed type main tank 11 with a thin tube 12.</p> |
