Tips for Using Chassis Components
2025-06-13
Track Chain Link
Excavators use tracks for movement, and the motor's traction force is very large during travel. Since each track chain link has a certain length and the drive wheel is gear-shaped, a polygon effect occurs during movement (when the entire track plate is parallel to the ground, the drive radius is smaller; when one side of the track plate contacts the ground, the drive radius is larger, causing inconsistent travel speed of the excavator), resulting in vibration. Improper operation, uneven road surfaces, changes in track tension, or the presence of excessive mud, sand, and other foreign objects on the track chain links can cause resonance of the track chain links during travel, leading to track chain link bouncing accompanied by noise; in severe cases, this accelerates wear of the undercarriage parts and may cause track derailment.
Carrier Roller, Track and Guard Plate, Drive Wheel, Idler Wheel
The materials of the excavator's carrier roller, track and guard plate, drive wheel, and idler wheel are alloy steel with added wear-resistant materials, forged and cast. Although the metal surface has a heat-treated protective film, improper operation, incorrect track tension, or the presence of foreign objects can wear off any metal protective film, ultimately accelerating the wear of the carrier roller, track and guard plate, drive wheel, and idler wheel.
Floating Oil Seal
The excavator's travel motor and reducer, carrier roller, and idler wheel require gear oil for lubrication. The floating oil seals of the travel motor, reducer, carrier roller, and idler wheel are a type of non-contact seal designed to prevent oil leakage and normally do not leak. However, when excessive mud, sand, and other foreign objects accumulate externally, they can enter the oil seal causing damage and oil leakage; prolonged travel raises oil temperature, aging the floating oil seal, eventually resulting in oil leakage.
Idler Wheel and Tension Cylinder
The excavator's idler wheel and tension cylinder assembly maintain the standard tension of the track; tension varies with working conditions and undercarriage foreign objects. To maintain standard tension, regular inspection and adjustment are required. When oil stains, sand, mud, and other foreign objects are present on the surfaces of the idler wheel and tension cylinder, cleaning is necessary to prevent oil seal failure and leakage.
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Chaoda specializes in manufacturing excavator parts (bucket teeth, tooth seats, side cutters, protectors, chassis parts), large castings and forgings, and valves.
Jiangxi Chaoda Machinery Manufacturing Co., Ltd.
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No.16, Changlin Industrial Park, Tonggu County, Yichun City, Jiangxi Province
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