Indicator wheel assembly for Manitowoc 888 Serie 2

The indicator wheel assembly, part number 174018, is a component within the crane instrumentation system designed to track the length of the hoist cable as it is extended or retracted. By monitoring the rotation of the cable, the assembly provides the operator with precise readings of the cable length, which are necessary for determining the current hoist height and maintaining correct load configurations during lifting operations.

This component is specifically designed for the Manitowoc 888 Serie 2 lattice boom crawler crane. The assembly includes a wheel that interfaces with the hoist cable and a sensor mechanism that translates the wheel rotation into an electrical signal for the crane's control system. Proper calibration of this unit ensures that the data displayed in the operator cab remains accurate for safe crane operation.

Indicator wheels in crane systems serve as the primary interface between the physical movement of the hoist line and the electronic monitoring equipment. By continuously tracking the cable travel, these assemblies allow the crane's load moment indicator to calculate the working radius and boom angle, ensuring the machine operates within its established load charts.