欢迎访问挖百万二手挖掘机官网：www.wabaiwan.com。如果您对我们的服务或产品有任何疑问，请通过邮箱联系：wabaiwan@qq.com。 Welcome to Wabaiwan Second-Hand Excavators' official website: www.wabaiwan.com. If you have any questions about our services or products, please contact us via email: wabaiwan@qq.com.

1. 概述

1. Overview

当挖掘机过了保修期后，定期的维修和保养变得尤为重要。适当的维护不仅可以延长设备的使用寿命，还能提高工作效率，减少故障和停机时间。本文将介绍一些常见的维修和保养技巧，帮助您保持挖掘机的良好状态。 When an excavator is out of warranty, regular maintenance and repair become crucial. Proper maintenance can extend the equipment's lifespan, improve work efficiency, and reduce breakdowns and downtime. This article will introduce common maintenance and repair tips to help you keep your excavator in good condition.

2. 日常保养

2. Daily Maintenance

2.1 润滑

2.1 Lubrication

定期检查并润滑挖掘机的各个部件，包括轴承、铰链和液压系统。使用高质量的润滑油，可以减少摩擦和磨损，延长部件的使用寿命。 Regularly check and lubricate various parts of the excavator, including bearings, hinges, and the hydraulic system. Using high-quality lubricants can reduce friction and wear, extending the lifespan of components.

2.2 检查液压系统

2.2 Check the Hydraulic System

定期检查液压油液位和质量，确保液压系统正常工作。如果发现液压油污染或变质，应及时更换。检查液压软管和接头是否有泄漏或磨损，并及时更换损坏的部件。 Regularly check the hydraulic oil level and quality to ensure the hydraulic system is functioning properly. If the hydraulic oil is contaminated or deteriorated, replace it promptly. Inspect hydraulic hoses and fittings for leaks or wear and replace damaged parts in time.

2.3 清洁空气滤清器

2.3 Clean Air Filters

空气滤清器会随着时间的推移而积聚灰尘和杂质，影响发动机的性能。定期清洁或更换空气滤清器，确保发动机能够获得充足的空气供应，维持其正常运转。 Air filters accumulate dust and impurities over time, affecting engine performance. Regularly clean or replace air filters to ensure the engine receives adequate air supply and operates normally.

2.4 检查燃油系统

2.4 Inspect the Fuel System

检查燃油滤清器并根据需要进行更换，以避免燃油系统堵塞。确保燃油箱和燃油管道没有泄漏或损坏，防止燃油污染和浪费。 Check fuel filters and replace them as needed to prevent fuel system blockages. Ensure the fuel tank and fuel lines have no leaks or damage to prevent fuel contamination and waste.

3. 定期维护

3. Regular Maintenance

3.1 更换机油和滤清器

3.1 Change Oil and Filters

根据制造商的建议定期更换发动机机油和滤清器。清洁的机油可以减少发动机磨损，提高其性能和效率。 Regularly change engine oil and filters according to the manufacturer's recommendations. Clean oil can reduce engine wear and improve its performance and efficiency.

3.2 检查电气系统

3.2 Inspect the Electrical System

检查电池、启动电机和发电机，确保电气系统正常工作。清洁电池端子，防止腐蚀，确保电池有良好的接触。 Inspect the battery, starter motor, and alternator to ensure the electrical system is functioning correctly. Clean battery terminals to prevent corrosion and ensure good contact.

3.3 检查底盘和履带

3.3 Inspect the Chassis and Tracks

定期检查底盘和履带的磨损情况，确保它们处于良好状态。及时更换磨损严重的履带，防止设备在工作中出现打滑或失控。 Regularly inspect the chassis and tracks for wear to ensure they are in good condition. Replace severely worn tracks in time to prevent slippage or loss of control during operation.

3.4 检查液压缸

3.4 Inspect Hydraulic Cylinders

检查液压缸的密封件是否有泄漏或损坏，确保液压缸正常工作。如果发现泄漏，应及时更换密封件或液压缸。 Inspect hydraulic cylinder seals for leaks or damage to ensure the cylinders are working properly. Replace seals or hydraulic cylinders promptly if leaks are detected.

4. 故障排除

4. Troubleshooting

4.1 发动机故障

4.1 Engine Issues

如果发动机出现启动困难、功率不足或运行不稳定等问题，应检查燃油系统、点火系统和空气滤清器，找出故障原因并进行维修。 If the engine has difficulty starting, lacks power, or runs erratically, check the fuel system, ignition system, and air filters to identify the cause and perform repairs.

4.2 液压系统故障

4.2 Hydraulic System Issues

液压系统故障可能导致挖掘机无法正常操作。检查液压油液位、软管和接头，找出泄漏或堵塞的部位并进行维修。 Hydraulic system issues may prevent the excavator from operating normally. Check the hydraulic oil level, hoses, and fittings to identify leaks or blockages and perform repairs.

4.3 电气系统故障

4.3 Electrical System Issues

电气系统故障可能导致设备无法启动或运行异常。检查电池、电缆和连接器，确保电气系统正常工作。 Electrical system issues may cause the equipment to fail to start or run erratically. Check the battery, cables, and connectors to ensure the electrical system is functioning correctly.

5. 维护记录

5. Maintenance Records

5.1 记录保养和维修

5.1 Document Maintenance and Repairs

保持详细的维护和维修记录，包括更换的部件、使用的润滑油和维修日期。这些记录有助于追踪设备的维护历史，确保及时进行必要的保养和维修。 Keep detailed maintenance and repair records, including replaced parts, lubricants used, and repair dates. These records help track the maintenance history of the equipment and ensure timely maintenance and repairs.

5.2 定期检查计划

5.2 Regular Inspection Schedule

制定定期检查和维护计划，确保设备始终处于最佳工作状态。定期检查和保养可以预防故障，减少停机时间。 Establish a regular inspection and maintenance schedule to ensure the equipment is always in optimal working condition. Regular inspections and maintenance can prevent breakdowns and reduce downtime.

6. 结论

6. Conclusion

适当的维修和保养对于过保修期的挖掘机至关重要。通过定期保养、及时维修和保持详细的维护记录，您可以延长设备的使用寿命，提高其工作效率。挖百万提供专业的二手挖掘机维修和保养服务，欢迎访问我们的网站了解更多详情。 Proper maintenance and repair are crucial for excavators out of warranty. By performing regular maintenance, timely repairs, and keeping detailed maintenance records, you can extend the lifespan of your equipment and improve its work efficiency. Wabaiwan offers professional second-hand excavator maintenance and repair services. Visit our website to learn more.