| 摘要 |
PROBLEM TO BE SOLVED: To enable a relief valve to be easily inspected or the like irrespective of a setting of regulator valve of a hydraulic control device in which an oil pump, the relief valve and the regulator valve are integrally assembled.SOLUTION: A through-hole 31w is formed at a side surface in a direction perpendicular to an axis, of a spool hole 31s of a housing 31 stored with a spool 44a of a regulator valve 44. In a state in which no pressure is generated, an outer peripheral shoulder part 44d of the spool is positioned between a side end part 31wa in a through-hole axis direction, of a spool and the center of the through-hole. An inspection device is provided with a latching member 101 which is having a plate-like part 101a protruded out of a body 101b, fitted in the through-hole in such a way that an extremity end 101c may not interfere with a spool outer periphery and a spring 44b, and engaged with the outer peripheral shoulder. The plate-like part 101a is inserted into the through-hole, its extremity end is engaged with the spool outer peripheral shoulder part, the spool is fixed at a position in a state where no pressure is generated, the oil pump is operated and then an inspection of the relief valve 46 or the like is carried out. |
