| 摘要 |
PURPOSE:To install properly a spring and a spool in a valve hole using a simple configuration. CONSTITUTION:In the condition that a valve hole 3 is held upright, an upper and a lower spring receptacle 34, 35 are inserted in the valve hole 3 through an oil path 13A, and then a spring 5 is inserted from above into the valve hole 3. The bottom of this spring 5 is supported at the foremost extremity of the first spring receptacle 34, and a spool 4 is fitted on the spring 5 at least in its overmost part. The first spring receptacle 34 is removed to outside the valve hole 3, and the spring 5 is dropped while the spring 5 and spool 4 are held in the engaged relation, and is supported by the foremost extremity of the second spring receptacle 35. The spool 4 is sunk for a certain distance and inserted in the valve hole 3, and the second spring receptacle 35 is removed to outside of the valve hole 3, and the spring 5 is dropped to the installing position while the spring 5 and spool 4 are held in the engaged relation. |
