Terex
Roller guide pin for Terex BT4792
This roller guide pin secures and aligns the rollers within the boom extension and retraction system of the Terex BT4792 crane. It maintains the correct positioning of the rollers to support the movement of the telescopic boom sections.
Parts diagram
Compatible models
Specifications
- Part number
- 870-00135
- Brand
- Terex
The roller guide pin, part number 870-00135, functions as a mounting and alignment component within the telescopic boom assembly of the Terex BT4792 crane. It secures the rollers that facilitate the controlled extension and retraction of the boom sections. By keeping the rollers in their designated position, the pin helps manage the lateral forces and loads encountered during lifting operations, ensuring the boom sections move along their intended path without binding or erratic motion.
This component is specifically designed for use in the Terex BT4792 model. Proper installation of the pin ensures that the rollers remain correctly seated, which is necessary for the mechanical transition of the telescoping structure. Regular inspection of the pin and associated roller assembly is required to maintain the operational alignment of the boom system.
Guide pins in crane boom assemblies serve to anchor the rollers that interface between sliding boom sections. By maintaining the orientation of these rollers, the pin allows the boom to extend and retract while managing the contact pressure between the steel sections of the crane structure.

