IAI America SSPDACR - Manual (Page 39)

6. Installation
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6.2 Installing the Actuator
6.2.1 Installation Method
x Use the threaded holes on the back of the base to install the actuator.
x ISDB and ISDBCR actuators of intermediate support type (MX/LX) are installed in the same way as the
corresponding actuators without intermediate support. However, be careful not to remove or get caught by
the wire rope for the intermediate support during installation.
x When positioning pins are used, use pins with an engagement tolerance of h7 or equivalent.
x Positioning can also be performed by pushing the reference surface on the side of the base. [Refer to 6.2.2,
“Preciseness of the Installation Surface.”]
x Use high-tension bolts conforming to ISO 10.9 or higher.
x When the threaded holes are used, determine the required thread length as specified below:
x ISDB, ISPDB, ISDBCR, ISPDBCR
Depth of threaded hole > Thread engagement length > Nominal thread size x 1.8
x SSPDACR
Depth of threaded hole > Thread engagement length > Nominal thread size
x If the through holes are used to install a SSPDACR actuator, provide the following effective engagement
length, whichever is applicable, for the female thread:
x If the female thread is made of steel, same as the nominal diameter
x If the female thread is made of aluminum, 1.8 times of nominal diameter
x If the bolt seating surface is aluminum, or the through holes are used to install a SSPDACR actuator, also
use high-tension bolts with dedicated washers. Failure to do so may cause the seating surface to buckle.