Attach a steel triangle support to the root frame before installing the frame on the blade to eliminate the risk of the frame turning over due to lack of support.Place the root frame in an appropriate place supported by, for example, the steel triangle support to avoid that the root frame turns over.2. Attach the appropriate numbers of M30 bolts and dog bone-shaped clamps for installation of root frame to the blade root. See section 17 Preparing and Installing the MBF, p. 23.3. Tighten the appropriate M30 bolts in the root end with 520 Nm
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