How to maintain LUGONG wheel loader drive axles correctly

In the structural system of a wheel loader, the front axle is the core component that bears the machine entire load and transmits power. To ensure the performance of LUGONG wheel loaders, this article will provide an in-depth analysis of the technical highlights of LUGONG independently developed drive axle and offer a step-by-step maintenance guide for front axle gear oil.

Structural Advantages of the Drive Axle

Metallurgical Processes and Heat Treatment: The key transmission components of the LUGONG drive axle undergo a specialized quenching and tempering process, which enhances the parts’ fatigue strength and toughness.
Gear Ratio and Torque Distribution: The gear ratio of LUGONG specialized heavy-duty drive axle is set at 7.41. This design delivers more powerful wheel-end torque, ensuring the loader has exceptional parking and starting capabilities on slopes.
Structural Reinforcement Design: To handle complex terrain, the LUGONG axle housing is approximately 12 kg heavier than general-purpose standards. This ensures that the axle structure does not undergo geometric deformation during operation under high loads or on uneven surfaces.

Key to Ensuring System Stability

Precision Protection of the Sealing System: LUGONG drive axles and hydraulic lines generally use 24° tapered fittings with dual seals. This effectively resists vibrations caused by high-pressure pulses and prevents lubricant leakage.
Safety Margin in the Braking System: The entire range of LUGONG drive axles is equipped with large-diameter, thickened brake caliper discs. This not only enhances thermal capacity but also extends maintenance intervals by thickening the wear-resistant layer.

Step-by-Step Guide to Front Axle Gear Oil Maintenance

Based on the technical characteristics of LUGONG drive axles, it is recommended to follow the procedure below during maintenance:
Shutdown Preparation and Environmental Check: Park the loader on level ground, ensure the bucket is on the ground, and engage the parking brake.
Drain and Visual Inspection: Drain the old oil using the LUGONG drive axle’s maintenance-friendly design. Carefully inspect the waste oil for any abnormal metal debris.
Inspection of Double-Seal Fittings: Focus on inspecting the 24° tapered seal fittings. Thanks to LUGONG precision machining, this area should remain dry under normal conditions.
Precise, Quantitative Oil Filling: Fill with gear oil that meets technical requirements according to the model specifications. After filling, start the machine and drive it slowly for a short time to ensure the lubricant evenly coats the planetary gear surfaces.
Brake Performance Check: Take advantage of the oil change interval to clean dust buildup from the brake caliper discs at the end of the drive axle.

Frequently Asked Questions

Q1: Why does LUGONG insist on using a parallel four-hole mounting structure?
A1: Compared to conventional mounting structures, LUGONG parallel four-hole design provides a more uniform distribution of forces, preventing concentrated stress on the bolts during heavy-load torsion. The additional 12 kg in axle housing weight also directly enhances the axle’s rigidity, reducing fatigue deformation after long-term operation.
Q2: Does the thickened design of the brake shoes increase replacement costs?
A2: Quite the opposite. The thickened design significantly extends the service life of the brake shoes, reducing the frequency of replacements. It substantially lowers maintenance costs and minimizes downtime losses.

Summary

LUGONG will continue to help users worldwide maximize their operational value through technological innovation and scientific maintenance guidance.