Excavator Undercarriages System Deep Maintenance Guide: Wear Inspection + Full Maintenance Process to Extend Life by 50%

I. Excavator Undercarriages System Composition (with Core Parameters)

III. Undercarriages System Maintenance Tips (By Cycle + Practical Details)

(1) Daily Maintenance (After Daily Operation)

1. Cleaning and Dust Removal: Rinse the track, wheel system, and links with a high-pressure water gun to remove soil and gravel (focus on cleaning gaps between links and around wheel axles) to prevent impurities from entering bearings and seals and accelerating wear;

2. Quick Inspection: Visually check track bolts, wheel system leakage, and track tightness. Address minor issues promptly to avoid accumulation.

(2) Regular Maintenance (By Operating Hours)

1. Every 200 Hours: Lubrication Maintenance

• Inject "lithium-based grease" into track link pins, bushings, and wheel system bearings. Inject until grease overflows at each lubrication point (ensure full lubrication);

• Check the grease level of the tension device and replenish via the grease valve to maintain track tightness within the standard range.

2. Every 500 Hours: In-Depth Inspection + Component Maintenance

• Remove the wheel system end cover and check the lubricating oil quality. Replace the oil and clean the bearings if the oil is turbid or contains metal debris;

• Check the hydraulic oil level of the shock absorber. Replenish with the same type of hydraulic oil if insufficient and replace aging seals;

• Clean rust and impurities in the gaps of track links with a steel wire brush and apply anti-rust grease.

3. Every 1000 Hours: Vulnerable Parts Inspection and Replacement

• Inspect track shoes, pins, and bushings according to wear standards. Replace promptly when reaching the replacement threshold to avoid chain failures caused by single component damage;

• Check the wear of drive sprocket and idler wheel tooth surfaces. Grind or replace if necessary;

• Fully inspect the elasticity of the tension spring. Replace the tension device if elasticity decreases (insufficient tension force).

(3) Working Condition-Adapted Maintenance (Adjust By Operating Environment)

1. Dusty/Gravel Working Conditions (Mines, Sand and Gravel Yards)

• Shorten the cleaning cycle (add one extra cleaning during daily operation) and install dust covers for track links and wheel systems;

• Inspect seals every 100 hours and replace damaged ones promptly to prevent impurity entry.

1. Soft Ground Working Conditions (Farmland, Wetlands)

• Adjust track tightness to the upper limit (sag 30mm) to avoid track getting stuck in soil;

• Rinse soil in track shoe gaps promptly after operation to prevent soil caking and hardening, which accelerates wear.

1. Hard Ground Working Conditions (Concrete, Asphalt Roads)

• Adjust track tightness to the lower limit (sag 15mm) to reduce impact between the track and the ground;

• Avoid long-term high-speed driving to reduce wheel system wear.

IV. Summary

1. Inspection should be "quantitative": Use tools instead of naked eyes to judge wear according to standards, not experience;

2. Maintenance should be "on time": Daily cleaning, regular lubrication, and adjustment according to working conditions—no delay;

3. Replacement should be "decisive": Replace vulnerable parts promptly when reaching the wear threshold to avoid major maintenance caused by minor faults.

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   - Founded in 2013, SPARKLING focuses on high-quality excavator parts across hydraulics, undercarriage, engines and electrical systems. We prioritize stability, precision and continuous service, offering worldwide distribution, tailored solutions and strict QC to help customers reduce cost and increase uptime.

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