What are the parts of the undercarriage excavator? | Kyotechs Guide

What are the Parts of the Undercarriage Excavator?

Understanding your excavator's undercarriage is crucial for efficient operation and maintenance. This article clarifies the key components, helping you troubleshoot issues and maximize your machine's lifespan. Knowing the individual parts allows for better preventative maintenance and quicker repairs.

Tracks and Track Shoes

The excavator's tracks, also known as crawler belts, are the foundation of its movement. They consist of individual track shoes, steel plates linked together by connecting pins and bushings. These shoes are designed to distribute weight and provide traction on various terrains. Wear and tear on track shoes and pins is common, impacting machine performance and requiring timely replacement.

Track Rollers

Supporting the track system are the track rollers. These cylindrical components, mounted on the excavator's frame, guide the tracks' movement and reduce friction. Regular inspection of track rollers is essential, checking for damage or wear, which can compromise stability and lead to premature track failure.

Idlers and Sprockets

At the rear of the excavator’s undercarriage sits the idler wheel. This wheel tensions the track and guides the track links around the undercarriage. The sprockets, located at the front, drive the tracks. Wear or damage to either idlers or sprockets can significantly impact track tension and overall performance. Improper tension is a common problem that many excavator users encounter.

Frame and Bogies

The entire undercarriage assembly sits on a robust frame, which is the main structural component. It houses the drive system components including the bogies (also known as carrier rollers). Bogies act as additional support rollers, assisting the track rollers in distributing load and ensuring smooth track movement. Regular inspections for cracks or damage to the frame are vital for excavator safety and operational efficiency.

Drive Motors and Hydraulics

The power behind the excavator’s movement originates from the drive motors and the associated hydraulic system. These components deliver the necessary hydraulic pressure to turn the sprockets and propel the excavator. Regular maintenance of the hydraulic system, including oil checks and filter replacements, is key to keeping the undercarriage operating optimally.