Used Caterpillar 345GC Excavator Repair and Maintenance Guide

Buying a used Caterpillar 345GC excavator is a significant investment, especially on a limited budget. Choosing a used machine not only significantly reduces initial investment costs but also helps you maintain operational efficiency. However, used construction equipment may experience wear and aging over time, so regular repairs and maintenance are crucial to extending the life of your excavator. Today, we’ve compiled a comprehensive repair and maintenance guide for your used Caterpillar 345GC excavator to help you keep your equipment in top condition and avoid costly repairs.

Regularly Check the Hydraulic System
The hydraulic system of a Caterpillar 345GC excavator is one of its core components. Ensuring the quality of the hydraulic oil and proper operation of the hydraulic system effectively increases the machine’s operating efficiency and service life. Regularly check the hydraulic oil cleanliness and level, and replace the hydraulic oil filter promptly. A comprehensive hydraulic system inspection is recommended every 2,000 hours of operation. Especially when purchasing used equipment, ensure that the hydraulic oil is free of impurities and moisture to prevent hydraulic pump or cylinder failure.

Engine Maintenance
The engine is the most important power source for an excavator. Engine maintenance is particularly important for a used Caterpillar 345GC excavator. Regularly check the engine’s lubricating oil and coolant to maintain normal levels and prevent overheating and friction. Depending on the operating environment, it is recommended to replace the engine oil and filter every 1,000 hours to ensure the engine maintains efficient operation.

Also, regularly check the air filter. Air filters can easily become clogged, especially when working on dusty construction sites, affecting engine air intake efficiency. Clean or replace the filter promptly to prevent engine performance degradation.

Check the Tracks and Travel System
The Caterpillar 345GC excavator uses a crawler travel system. Track wear and damage can directly impact operating efficiency and safety. Regularly check the track tension to ensure proper working condition. If the track is cracked, excessively worn, or loose, it should be adjusted or replaced promptly.

In addition, components of the travel system, such as the drive wheels, track rollers, and track shoes, also require regular inspection. Clean away dirt and sand promptly to prevent dust accumulation from damaging the tracks and travel system.

Cooling System Cleaning and Inspection
The cooling system is critical to maintaining stable operation of the Caterpillar 345GC excavator. Check the coolant level and quality, and ensure there are no leaks in the radiator and coolant lines. Clean the radiator surface after every 500 hours of operation to prevent dust and impurities from accumulating and impairing heat dissipation. If the coolant changes color or has an unusual odor, there may be a problem with the cooling system and the coolant should be replaced and inspected promptly.

Electrical System Inspection and Maintenance
As an excavator ages, the electrical system may develop problems such as poor contact and aging wiring. Regularly inspect the electrical system, especially the battery charge and contact points, to ensure proper battery charging to prevent the machine from starting. Inspect electrical wiring for exposed or damaged areas to ensure proper starting and operation.

Regular Maintenance Plan
To ensure the long-term and efficient operation of your cost-effective used Caterpillar 345GC excavator, it is crucial to develop and adhere to a sound regular maintenance plan. In addition to routine inspections and repairs, you can schedule regular comprehensive inspections based on the equipment’s operating environment and frequency of use. For example, a full vehicle inspection should be performed every 3,000 hours, covering all major components, including the hydraulic system, engine, transmission, and brakes, to ensure they are in good condition.

Choosing the Right Repair Parts
Selecting high-quality repair parts is crucial to extending the life of your used Caterpillar 345GC excavator. Whenever possible, choose genuine parts to ensure compatibility and quality. If you choose non-genuine parts, be sure to select certified brands and suppliers to avoid equipment failures caused by substandard parts.

Conclusion
The used Caterpillar 345GC excavator is a stable and durable machine, but proper maintenance and care are crucial to ensuring its long-term efficiency. By regularly inspecting the hydraulic system, engine, tracks, cooling system, and electrical system, and selecting high-quality repair parts, you can maximize the life of your equipment, reduce repair costs, and improve efficiency. If you have any further questions about your used Caterpillar 345GC excavator, please feel free to contact Lingyi, a professional used excavator supplier.