CORE AS 3189215 - Caterpillar

Personal injury or death may occur from failure to adhere to the following warnings.Keep all personnel away from the boom drop area when lowering the boom with the engine stopped.Keep all personnel away from the front linkage when lowering the boom.
Illustration 1 g03431838
Machine location and detail view of ball valve used to manually lower work tool.
A ball valve is used for manually lowering the work tool. This ball valve is located in the articulation joint on the right-hand side of the front frame of the machine. The ball valve is mounted on a bracket that is near to the level of the driveshaft. Slowly turn the square stem in the clockwise direction. The square stem should be rotated 90 degrees. After the work tool is resting on the ground, rotate the square stem 90 degrees counterclockwise.