Locking Dog Assembly

Locking dog assemblies are integral components of the complete tool system for the PISA® family of anchors, which also includes the kelly bar adapter, torque indicator, and drive end wrench. Designed for compatibility with different sizes of kelly bar adapters, the C3030069HD model fits 5-1/4” bolt circles, while the C3030981 model is suitable for 7-5/8” bolt circles. These assemblies feature three distinct ring positions for versatile functionality: the inside ring secures both the drive end wrench and the Pisa rod, the middle ring releases the Pisa rod while holding the drive end wrench, and the outside ring releases both the Pisa Rod and the drive end wrench. This flexibility allows for precise control and efficiency in anchor installation processes.