| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a hydraulic oil tank for an operating machine capable of coping with optional specifications at low cost. <P>SOLUTION: This hydraulic oil tank 1 comprises a tank main body provided with the filter case 3 in which a filter element 33 is inserted, a flange member 4 is welded around an opening for replacing the filter element 33, and both of a cover 8B having a return port 11 for introducing the oil returned from an optionally installed hydraulic breaker into the filter case, and a cover 8A free from the return port 11 are prepared as the covers to be selectively mounted on the flange member 4. <P>COPYRIGHT: (C)2005,JPO&NCIPI</p> |
