Outer mid section for Grove TM 890

The outer mid section, part number 2177900087, serves as a primary structural element within the telescopic boom assembly of the Grove TM 890 crane. Its function is to provide the necessary length and structural support to the boom, allowing the crane to extend to required heights and manage operational radii. This section slides in and out of the boom assembly, moved by hydraulic cylinders, to adjust the total reach of the crane during lifting operations.

This component is specifically engineered for use in the Grove TM 890 truck-mounted crane. It is designed to fit within the telescopic boom system, maintaining the alignment and structural integrity required for the crane to support its rated loads. Proper integration of this section is necessary for the mechanical stability of the boom during operation.

In telescopic crane systems, mid sections act as the intermediate links between the base boom and the fly jib or tip sections. They are engineered to handle compression and bending forces while allowing for smooth movement along the boom path. These sections typically feature mounting points for wear pads to minimize friction and prevent metal-to-metal contact during extension and retraction cycles.