https://www.waterworkstraining.com/products/Ductile_Iron_Retainer_Gland.php – Training and Installation “The Basics” lesson 22 explains the importance of checking and inspecting all parts, the correct order of assembly of the gland and the gasket on the pipe and how to properly torque the bolts and tighten the set screws in an alternating or star pattern.
Excessive tightening of adapter sleeve removes clearance from spherical roller bearings.