引言 | Introduction

購買二手挖掘機后，可能會遇到一些常見問題。本文將探討這些問題并提供解決方法，幫助您維護設備的最佳狀態。

After purchasing a used excavator, you may encounter some common issues. This article will discuss these problems and provide solutions to help you maintain the equipment in optimal condition.

一、液壓系統問題 | Hydraulic System Issues

1. 液壓油泄漏 | Hydraulic Oil Leaks:液壓油泄漏是常見問題，通常由管路破損或接頭松動引起。定期檢查液壓管路，及時更換受損部件。

Hydraulic oil leaks are common, often caused by damaged hoses or loose fittings. Regularly inspect hydraulic lines and replace damaged parts promptly.

2. 液壓系統壓力不足 | Low Hydraulic System Pressure:如果液壓系統壓力不足，可能是濾清器堵塞或液壓泵磨損。清潔或更換濾清器，并檢查液壓泵是否需要修理或更換。

Low hydraulic system pressure can result from clogged filters or worn hydraulic pumps. Clean or replace filters and check if the hydraulic pump needs repair or replacement.

二、發動機問題 | Engine Issues

1. 啟動困難 | Hard Starting:發動機啟動困難可能是由于電池電量不足或燃油系統問題。檢查電池電壓和燃油系統，確保燃油清潔且無堵塞。

Hard starting can be due to low battery power or fuel system issues. Check battery voltage and the fuel system, ensuring the fuel is clean and free of blockages.

2. 異常噪音 | Unusual Noises:發動機發出異常噪音可能是內部零件磨損或松動的跡象。盡早檢查并修理，以防止進一步損壞。

Unusual engine noises may indicate worn or loose internal parts. Inspect and repair early to prevent further damage.

三、電氣系統問題 | Electrical System Issues

1. 電池電量不足 | Low Battery Power:電池電量不足可能導致設備無法啟動或電氣系統故障。定期檢查電池狀態，并在必要時更換。

Low battery power can cause startup issues or electrical system failures. Regularly check battery condition and replace if necessary.

2. 電氣接頭松動 | Loose Electrical Connections:松動的電氣接頭可能導致電氣系統故障。定期檢查所有電氣連接，確保其牢固和無腐蝕。

Loose electrical connections can lead to electrical system failures. Regularly inspect all electrical connections to ensure they are secure and free of corrosion.

四、常見機械問題 | Common Mechanical Issues

1. 磨損和裂紋 | Wear and Cracks:檢查鏟斗、臂架和底盤等部件是否有磨損和裂紋。及時修復或更換受損部件，防止問題惡化。

Check for wear and cracks in parts like the bucket, boom, and undercarriage. Repair or replace damaged parts promptly to prevent worsening.

2. 潤滑不足 | Insufficient Lubrication:潤滑不足會導致部件過度磨損。定期潤滑所有活動部件，確保其平穩運行。

Insufficient lubrication can cause excessive wear. Regularly lubricate all moving parts to ensure smooth operation.

結論 | Conclusion

通過及時識別和解決這些常見問題，您可以確保二手挖掘機的長期使用壽命和最佳性能。

By identifying and addressing these common issues promptly, you can ensure the long-term lifespan and optimal performance of your used excavator.

更多信息請訪問我們的網站：www.cc-mt.com.cn，或通過郵箱聯系我們：wabaiwan@qq.com。
For more information, please visit our website: www.cc-mt.com.cn, or contact us via email: wabaiwan@qq.com.