Abstract: A clamping assembly for hoses which are connected between a tractor and piston-cylinders on an attached implement such as a backhoe. The clamping assembly includes a base and at least one releasable clamping element. Each hose is strung through an opening in the base and abutted against an arcuate wall. The clamping element also includes an arcuate wall which engages the opposite side of the hose. The clamping element is secured in position by a bolt fastener. The clamping element includes opposed upstanding lugs which are spaced apart far enough to permit the head of the bolt fastener to slide between them. After the head of the bolt is positioned between the lugs, it cannot be turned, and therefore, a nut may be conveniently tightened on the bolt without the need for an additional tool to hold the head of the bolt. Further, angled surfaces on the base and clamping element provide for clamping or wedging action as the bolt is tightened.

Abstract: A self-leveling system for a material handling unit on a pivoted boom is disclosed herein. The self-leveling system consists of a separate valve which is automatically controlled by the actuation of a material handling valve to produce the leveling function in either the raising or lowering condition for the boom.