top of page
Writer's pictureRALPH COPE
Aug 22, 20232 min read

A Deep Dive into Excavator Dogbones



Excavators undertake heavy-duty tasks with precision and efficiency. A key component that facilitates their seamless operation is the excavator dogbone, a vital link in the machinery that deserves a closer look. In this blog, we'll explore the crucial role of excavator dogbones, discuss methods to extend their lifespan, offer insights on identifying wear and tear, and provide guidance on replacing them when the time comes.


The Role of Excavator Dogbones:

Excavator dogbones, also known as link assemblies or connecting rods, are fundamental components that connect the boom, stick, and bucket of an excavator. These components work in tandem to enable smooth articulation and movement, allowing the excavator to perform a wide range of tasks, from digging and trenching to lifting and loading. By transmitting hydraulic power and force from the machine's main arm to the various attachments, dogbones play a pivotal role in maintaining operational efficiency and accuracy.


Extending the Lifespan of Excavator Dogbones:

  1. Regular Maintenance: Implementing a stringent maintenance schedule is essential to prolonging the lifespan of excavator dogbones. Regularly inspect for signs of wear and tear, and address any issues promptly.

  2. Lubrication: Proper lubrication is crucial to reduce friction and wear. Follow the manufacturer's guidelines for lubrication intervals and use high-quality lubricants.

  3. Operational Practices: Encourage operators to use the excavator within recommended operational limits. Avoid subjecting the machine to unnecessary stress, overloading, or abrupt movements that could strain the dogbones.

  4. Cleanliness: Keep the excavator and its components clean from dirt, debris, and corrosive materials. Regular cleaning prevents the accumulation of contaminants that could accelerate wear.

Identifying Worn Dogbones:

  1. Visual Inspection: Regularly examine the dogbones for visible signs of wear, such as cracks, deformation, or excessive rust.

  2. Abnormal Noises: Unusual clanking, grinding, or squeaking sounds during operation might indicate worn dogbones.

  3. Reduced Performance: If you notice a decrease in the excavator's efficiency, lifting capacity, or movement control, worn dogbones could be a contributing factor.

  4. Uneven Wear: Inspect the dogbones for uneven wear patterns, which can suggest misalignment or improper lubrication.

Replacing Excavator Dogbones:

Replacing excavator dogbones is a precise process that requires technical expertise. Here's a general outline of the steps involved:

  1. Safety First: Before any maintenance or replacement work, ensure the excavator is properly stabilized and that all safety protocols are followed.

  2. Remove Attachments: Detach any buckets or other attachments connected to the dogbones.

  3. Release Pressure: Relieve hydraulic pressure in the system to ensure safe disassembly.

  4. Remove Pins and Bolts: Carefully remove pins, bolts, and other fasteners that secure the dogbones in place.

  5. Replace Dogbones: Install the new dogbones, ensuring they are aligned correctly. Use appropriate torque specifications for fasteners.

  6. Reconnect Attachments: Reattach the buckets or other attachments to the new dogbones.

  7. Test Operations: After replacement, thoroughly test the excavator's movements and functions to ensure proper installation.

In conclusion, excavator dogbones are indispensable components that enable the fluid movement and operation of these powerful machines. By implementing proper maintenance practices, identifying signs of wear, and following precise replacement procedures, you can extend the lifespan of your excavator dogbones and optimize the overall efficiency and performance of your excavator. Remember, a well-maintained excavator not only increases productivity but also enhances the safety of your worksite.


Comments

bottom of page