IAI America RCL-RA3L - Manual (Page 31)

2. Installation
25
About Force to Tighten Pipe
Keep on tightening up the clamp bolts, and hold it at the tightening torque that is the minimum to
retain the pipe.
The table below shows the reference of clamping force to retain the pipe. Do no attempt to clamp
the pipe with force more than what is stated.
Note that the force applied to the pipe differs due to the profile or stiffness of the used bracket, size
of clamping bolts or tightening torque.
Pipe Clamping Force (Reference value)
Type Clamping force (Reference value)
RA1L 1,00 [N] (100kg) or less
RA2L 1,500 [N] (150kg) or less
RA3L 2,000 [N] (200kg) or less
Caution: With excessive force to tighten the pipe, the pipe may get deformed, which may result
in an operation error or malfunction.
Other Methods to Attach
When Using Fixing Screws (set screws);
When using the fixing screws, deformation is big in spots where the screws are touching the
actuator compared to clamping. Make sure to conduct attachment following Available range for
screw fixing type B in “Dimensions for Body Attachment” mentioned in “2.3.2 [1] Mounting Method”.
Also select fixing screws with small dimension and affix at several points.
In case of tightening with fixing screws with big dimension, big axial force may get applied to the
pipe, resulting in a big deformation.
Tightening torque of the cap screw (Reference value)
Cap screw size Tightening torque [N•m]
M2.5 0.18 or less
M3 0.32 or less
Caution: Tightening screws with excessive force may cause a deformation on the pipe, which
may cause an operation error or malfunction.