One Systems Natatorium User Manual
Page 5
5
Also note the supplied silicone washer. This large washer must be located between the NAT
enclosure and the U-bracket. This silicone washer will help prevent rotation of the NAT
enclosure once the desired aiming angle is achieved.
Silicone washer AL6XN bracket Nord Lock washer AL6XN bolt
NOTE: It is critical that the correct torque values be observed when assembling the U-
bracket assembly.
The 5/16” bolts used on the 108IM/NAT U-bracket should be tightened to a torque value of
14ft lb. (19.0Nm)
The 3/8” used on the 112IM/NAT U-bracket should be tightened to a torque value of 24ft lb.
(32.5Nm).
Full installation instructions for the Nord Lock washers may be found on the One Systems
web sit
in the Technical Papers/Install Guides under the
Natatorium section.
NOTE: Indoor swimming pools (Natatoriums) can be very harsh
environments. It is necessary to perform a yearly inspection of all
rigging elements. It is also necessary to perform a yearly visual
inspection on the U-bracket silicone washers (see the image
above). Any signs of degradation or corrosion will require
replacement of any structural elements, including the silicone
washers.