Demag
Cotter pin for Demag AC80-1
This cotter pin is designed to secure fasteners and prevent accidental loosening on the Demag AC80-1 crane. It is identified by part number 509 882 98.
Parts diagram
Compatible models
Specifications
- Part number
- 509 882 98
- Brand
- Demag
The cotter pin serves as a locking component within the assembly of the Demag AC80-1 crane. It is inserted through a pre-drilled hole in a shaft or fastener, such as a slotted nut or clevis pin, and its legs are bent to provide a secure retention mechanism. This component ensures that primary fasteners remain in their intended position, preventing rotation or detachment during operation.
This specific part 509 882 98 is compatible with the Demag AC80-1 model. It is typically utilized in areas of the machine subject to dynamic loads and vibration, including steering linkages, braking systems, and various pivot points along the boom structure.
In heavy machinery, cotter pins act as a final safeguard for critical connections. By locking threaded fasteners or pins in place, they maintain the integrity of mechanical joints and prevent the loss of hardware that could otherwise occur due to continuous operational movement.

