① Check if the positions of nuts, washers and O-rings are correct. (The normal position is where the washer is pressed against the upper end of the groove in the body.)
② Make sure that there is no foreign matter on the threaded part, seat surface of the O-ring port, and O-ring.Apply hydraulic oil or grease to the seat surface and O-ring before installation.
③ To install, screw the body in by hand until the washer surface touches lightly, then rotate it to the set position in the loosening direction.At this time, please do not rotate more than １ rotation. If it is rotated more than １ turn, the mating port and lock nut threads become shallow and the thread strength decreases.Forcible installation may apply load to the main body and the nut, which may result in deformation.Be sure to follow the installation procedure.
Also, if the washer is inserted too deeply into the mating port, the washer itself will deform and cause oil leakage.
Also, if the washer is inserted too deeply into the mating port, the washer itself will deform and cause oil leakage.
④For tightening, after installing the screw on the mating side, hold the body with a wrench or the like so that the setting position does not shift, and tighten the lock nut.
[Note ]
The greatest advantage of adjustable joints is that they can be freely adjusted in direction without difficulty. Please manage the tightening torque of , and install it by the above method.
Recommended tightening torques for adjustable joints Our recommended tightening torques are listed below.Please consider it as a reference value because it is a guide only.
In addition, if the customer has a standard, please manage it with that tightening torque.
In addition, if the customer has a standard, please manage it with that tightening torque.
Size | Tightening torque [N･m] (kgf･m) | Recommended working pressure [MPa] |
1/4 | 34.3~49(3.5~5) | ~ 34.3 |
3/8 | 68.6~78.4(7~8) | ~ 34.3 |
1/2 | 98~117.6(10~12) | ~ 34.3 |
3/4 | 147~176.4(15~18) | ~ 29.4 |
1 | 245~274.4(25~28) | ~ 29.4 |
1 1/4 | 294~(30~) | ~ 20.6 |
1 1/2 | 294~(30~) | ~ 20.6 |
2 | 392~(40~) | ~ 13.8 |
table.Recommended tightening torque
(Note)
The recommended working pressure shown is JIS B 2351-1977 12.3.4 Shock resistance test "Working pressure - 150% peak pressure", 400,000 times impact cycle test is performed, and it is assumed that there is no abnormality such as leakage or damage. It's an arrangement.
△ Please note that we will not be responsible for any problems caused by abnormal installation or tightening with over-torque.
△ Please note that we will not be responsible for any problems caused by abnormal installation or tightening with over-torque.
