Caterpillar 304C CR Mini Hydraulic Excavator

[MikePhua]

Introduction
The Caterpillar 304C CR is a compact hydraulic excavator designed for versatility and performance in confined spaces. Manufactured between 2006 and 2010, this model has been widely used in construction, landscaping, and utility projects. Its compact size and powerful capabilities make it a popular choice for operators seeking efficiency without compromising on performance.
Key Specifications

• Engine: Mitsubishi S4Q2, 4-cylinder diesel engine delivering 42 hp (31 kW) .
  
• Operating Weight: Approximately 10,582 lb (4,800 kg) with canopy; 10,844 lb (4,920 kg) with cab .
  
• Maximum Digging Depth: 10.8 ft (3,300 mm) with standard stick .
  
• Maximum Reach at Ground Level: 17.9 ft (5,460 mm) with standard stick .
  
• Hydraulic System: Maximum pump flow of 31.4 gal/min (119 L/min) .
  
• Swing Speed: 9 rpm .
  

Performance and Capabilities
The 304C CR offers a maximum bucket digging force of 10,049 lb (4,550 kg) and a maximum arm digging force of 5,290 lb (2,400 kg) . These forces enable efficient excavation and material handling tasks. The machine's compact dimensions allow for operation in tight spaces, making it ideal for urban construction sites and residential projects.
Operator Comfort and Features
The 304C CR is equipped with a spacious operator's cabin that offers excellent visibility and comfort. Features include ergonomic controls, air conditioning, and a suspension seat, ensuring reduced operator fatigue during extended work periods. The cabin design also provides protection from environmental elements, enhancing safety and productivity.
Maintenance and Serviceability
Caterpillar designed the 304C CR with serviceability in mind. Routine maintenance tasks, such as checking fluid levels and replacing filters, are accessible and straightforward. The machine's modular design allows for easy access to components, reducing downtime and maintenance costs.
Common Issues and Considerations
While the 304C CR is a reliable machine, some operators have reported issues related to the hydraulic system, particularly concerning pilot relief valves and tracking power . Regular maintenance and prompt attention to hydraulic components can mitigate these issues.
Conclusion
The Caterpillar 304C CR mini hydraulic excavator stands out for its balance of power, compactness, and operator comfort. Its robust specifications and versatile capabilities make it a valuable asset for various construction and excavation tasks. Potential buyers should consider factors such as maintenance history and operating conditions when evaluating used models to ensure optimal performance and longevity.