| 摘要 |
PROBLEM TO BE SOLVED: To provide a grease nipple check valve opening jig that can simplify assembly work, etc. of a propeller shaft.SOLUTION: A grease nipple check valve opening jig 21 comprises: a cylindrical body 22; a chuck 23 that is arranged in an end part of the body 22 and holds a grease nipple 11 with a plurality of claws 23a; a bush 24 that is arranged in the body 22 and presses the grease nipple 11 against the chuck 23 by being biased by a compression coil spring 26; and a pin 25 that is arranged in the body 22 and presses a ball 14 of the grease nipple 11 by being biased by a compression coil spring 27. |
