How to Extend the Lifespan of a Second-Hand Excavator

Second-hand excavators are popular among construction companies for their cost-effectiveness and practicality. Whether it is a medium excavator or a second-hand mini excavator, as long as it is properly maintained, it can continue to operate efficiently on the construction site. This article will focus on this topic and share several practical tips to help you make second-hand excavators and other equipment more effective.

1. Daily inspection is essential

1.1 Routine inspection before starting the machine every day

The 10-minute inspection before starting work every day seems simple, but it is the first line of defense to extend the life of the equipment. By checking the oil level, coolant level, fuel level, etc., and confirming whether there is oil leakage, loose bolts, abnormal noise, etc., potential faults can be eliminated in advance to avoid sudden shutdown of the equipment during work.

1.2 Check the track and hydraulic system

Especially for pre-owned excavators, special attention should be paid to the wear of the track and whether the hydraulic oil pipes are aging and leaking. If there is an abnormality in the hydraulic system, it may directly affect the power and efficiency of the equipment.

2. Lubrication maintenance is the core

2.1 Add grease regularly

The hinge points and high-frequency action parts are under great pressure during operation. If the lubrication is insufficient, the direct contact between metals will cause serious wear. According to different working environments and equipment conditions, it is recommended to formulate lubrication cycles and make lubrication operations an important part of daily maintenance.

2.2 Pay attention to the quality of grease

Choose grease products that meet the original manufacturer's requirements, and avoid using inferior grease for cheapness to prevent impurities from clogging the system or aggravating wear.

3. Operation specifications delay aging

3.1 Skilled operation can slow down losses

Driving habits directly affect the life of the equipment. For example, frequent sharp turns, excessive swinging of the arm or long-term idling will cause the second-hand mini excavator to generate additional load. Training the driver to master the correct operating skills, smooth starting, and gentle movements is the key to effectively reducing losses.

3.2 Control the engine speed

Try to control the engine speed according to the intensity of the operation. It is not suitable to operate at high speed for a long time, which will consume fuel and damage the machine.

4. Environmental factors need attention

4.1 Dealing with high temperature and dust

Summer or dusty environments place higher requirements on the equipment cooling system and filtering device. It is recommended to regularly check whether the radiator is blocked, replace the air filter in time, and appropriately install accessories such as dust covers and protective nets to improve the reliability and adaptability of the equipment under harsh working conditions.

4.2 Anti-rust and anti-slip in rainy days

After rainy weather, if the equipment is not cleaned up with accumulated water and silt in time, it is very easy to cause corrosion, and even cause safety hazards such as a short circuit of the electronic control system. After completing the wading operation, the waterproofness of the electrical connectors and the sealing effect of the hydraulic cylinder and oil pipe interfaces should be checked and reinforced if necessary.

5. Records and maintenance plan

5.1 Establish a complete maintenance file

Every maintenance, repair, and component replacement should be recorded, which is not only convenient for later tracking and statistics, but also can improve the systematicness and controllability of equipment management. These records are also of great reference value when reselling or evaluating the residual value of equipment.

5.2 Regularly ask professional technicians to inspect and repair

Although some daily maintenance can be completed by the operator, it is recommended that a professional technician conduct a comprehensive inspection every 3-6 months, especially for core components such as the engine, main pump, and swing motor. In-depth diagnosis to ensure that the equipment is in the beperating condition.

Summary

The key to extending the life of a second-hand excavator lies in meticulous daily management and scientific operation. From routine inspections and regular lubrication to standardized operations, adaptation to working conditions, and system record maintenance, every link cannot be ignored. Only by implementing these details can your pre-owned excavator continue to operate efficiently, truly make the best use of it, and maximize its value.