NEWS

Home > news > Company news about Operator Must-Read! Correct Usage Guide for Excavator Travel Gear Box, Cracking 80% of Fault Causes

EVENTS

news

Cases

belparts01@gmail.com

86-020-32384870

Contact Now

Operator Must-Read! Correct Usage Guide for Excavator Travel Gear Box, Cracking 80% of Fault Causes

2025-12-19

As the core component for excavators to achieve power deceleration and torque increase, the usage standard of the travel gear box (also known as travel reducer) directly determines the equipment operation efficiency and accessory service life. Research data in the global construction machinery field shows that more than 80% of travel gear box faults stem from improper operation and maintenance omissions, among which heavy-load impact and lubrication failure are the most prominent.

I. Core Principles of Basic Operation: "Golden Standards" for Startup and Shifting

Most damage to the travel gear box starts with initial operation, and standardizing the startup and shifting processes is the primary protective measure. During the startup phase, the excavator must first be parked on a level ground, ensuring that the travel control lever is in the neutral position. After starting the engine, let it idle for 3-5 minutes, and perform travel operations only after the hydraulic oil temperature rises above 20℃, to avoid dry friction between gears and bearings due to insufficient lubrication at low temperatures. Shifting operations must strictly follow the "stop-shift" principle. Whether switching between high and low gears or forward and reverse gears, it must be done after the equipment is completely stationary. Forced shifting during travel is strictly prohibited, as it will cause gear meshing impact, aggravate tooth surface wear, and may even lead to gear tooth breakage in severe cases.

II. Full-Working-Condition Operation Skills: Avoiding Damage Risks in Different Scenarios

Differentiated strategies for operating the travel gear box are required based on the characteristics of different operating scenarios. When operating in complex terrains such as mountains and slopes, the drive wheel should be placed at the rear when climbing to enhance track adhesion, while maintaining a constant speed to avoid frequent acceleration and deceleration; when descending slopes, the drive wheel should be placed at the front to prevent the vehicle from slipping by using the tensioned state of the upper track. At this time, neutral sliding is strictly prohibited, and the vehicle speed should be controlled through the cooperation of low-speed gear and braking system to reduce the inertial impact of gears inside the gear box. When the equipment needs to cross obstacles such as stumps and rocks, the undercarriage should first be supported by the working device, ensuring that the track center is aligned with the obstacle before passing slowly. This avoids track distortion causing uneven force on the output shaft of the gear box, leading to bearing damage or oil seal leakage faults.

III. Key Points of Daily Maintenance: "Core Measures" to Extend Gear Box Life

Standard daily maintenance is the key to reducing travel gear box faults, among which lubrication management and regular inspection are particularly important. In terms of lubrication, it is necessary to strictly select the specified brand and cleanliness of lubricating oil in accordance with the equipment manual, and mixing different types of oil products is strictly prohibited. Check the lubricating oil level before daily operation to ensure it is within the specified scale range; clean the oil nozzle impurities every week to avoid foreign matter intrusion during refueling; check the lubricating oil quality every month. If the oil color is black, there are metal debris or emulsification, the lubricating oil must be completely replaced immediately, and the inside of the gear box should be cleaned and inspected. Under severe working conditions, the oil change cycle should be shortened by 30%-50%, and the inspection of seals should be strengthened. Worn oil seals or gaskets should be replaced in a timely manner to prevent lubricating oil leakage and external impurity intrusion.

Send your inquiry directly to us