Contents
Overview of the Kobelco 904 Excavator
The Kobelco 904 excavator is a robust piece of machinery designed for various construction and excavation tasks. Known for its reliability and performance, this excavator has carved a niche for itself in the competitive market of heavy equipment. With a focus on efficiency and user-friendliness, the Kobelco 904 is often the go-to choice for contractors looking to tackle both small and large-scale projects.
Performance and Versatility
One of the standout features of the Kobelco 904 is its impressive versatility. This excavator is equipped to handle a wide range of applications, from digging and grading to lifting and demolition. Whether you’re working on a residential site or a large commercial project, the Kobelco 904 can adapt to your needs. Its compact design allows it to maneuver in tight spaces, making it ideal for urban construction sites where space is at a premium.
The machine is powered by a highly efficient engine that delivers strong performance without compromising fuel economy. This balance is crucial for contractors who need to keep operational costs in check while maximizing productivity. The Kobelco 904 is engineered to provide a smooth and powerful operation, ensuring that tasks are completed efficiently and effectively.
Operator Comfort and Control
When it comes to operator comfort, the Kobelco 904 does not disappoint. The cab is designed with ergonomics in mind, featuring adjustable seating, intuitive controls, and excellent visibility. This thoughtful design reduces operator fatigue, allowing for longer working hours without discomfort. The controls are laid out in a user-friendly manner, making it easier for both seasoned operators and newcomers to get the hang of the machine quickly.
Moreover, the excavator is equipped with advanced hydraulic systems that enhance its digging and lifting capabilities. This means that whether you’re excavating deep trenches or lifting heavy loads, the Kobelco 904 can deliver the power you need without hesitation.
Durability and Maintenance
Durability is another hallmark of the Kobelco 904. Built with high-quality materials and components, this excavator is designed to withstand the rigors of daily use. Regular maintenance is straightforward, thanks to accessible service points and a well-thought-out design. This ease of maintenance not only prolongs the life of the machine but also minimizes downtime, which is a critical factor for any construction project.
In summary, the Kobelco 904 excavator stands out for its blend of performance, comfort, and durability. It’s a reliable workhorse that can handle a variety of tasks while keeping the operator’s needs in mind. Whether you’re a contractor looking to invest in a new machine or a seasoned operator seeking a reliable partner on the job site, the Kobelco 904 is worth considering.
Kobelco 904 Excavator Specs
The Kobelco 904 excavator is a powerful machine that combines advanced technology with practical features, making it a top choice for various excavation tasks. Below, we delve into the specific details that define this excavator’s capabilities and performance.
Engine Specifications
The engine is the heart of any excavator, and the Kobelco 904 is no exception. It boasts a robust engine that ensures high performance and efficiency.
| Specification | Details |
|---|---|
| Engine Model | Kubota V3307-DI-T |
| Type | Diesel, 4-cylinder |
| Power Output | 70.6 kW (94.5 HP) @ 2,200 RPM |
| Torque | 320 Nm @ 1,400 RPM |
| Displacement | 3.3 liters |
| Fuel Tank Capacity | 100 liters |
Dimensions
Understanding the dimensions of the Kobelco 904 is crucial for assessing its suitability for various job sites, especially in urban environments where space can be limited.
| Specification | Details |
|---|---|
| Overall Length | 5,640 mm |
| Overall Width | 2,200 mm |
| Overall Height | 2,600 mm |
| Track Length | 2,300 mm |
| Track Width | 400 mm |
| Ground Clearance | 300 mm |
Weight
The weight of the Kobelco 904 is an important factor that influences its stability and performance on different terrains.
| Specification | Details |
|---|---|
| Operating Weight | 9,000 kg |
| Counterweight | 1,500 kg |
Working Specifications
The working specifications of the Kobelco 904 highlight its capabilities in various excavation tasks, making it a versatile tool for contractors.
| Specification | Details |
|---|---|
| Max Digging Depth | 4,300 mm |
| Max Reach | 6,300 mm |
| Max Dumping Height | 4,000 mm |
| Bucket Capacity | 0.3 – 0.4 m³ |
| Hydraulic Flow Rate | 120 liters/min |
| Max Arm Digging Force | 50 kN |
The Kobelco 904 excavator is designed to meet the demands of modern construction and excavation projects. With its powerful engine, compact dimensions, and impressive working capabilities, it stands out as a reliable option for contractors and operators alike.
Common Problems and Recommendations for the Kobelco 904 Excavator
While the Kobelco 904 excavator is a reliable machine, like any piece of heavy equipment, it is not without its challenges. Understanding these potential problems and knowing how to address them can help operators maintain productivity and extend the life of the machine.
Common Problems
1. Hydraulic System Issues
Hydraulic systems are critical for the operation of excavators, and the Kobelco 904 is no exception. Common issues include:
– Leaking Hydraulic Fluid: This can lead to reduced efficiency and potential damage to components.
– Slow Response Time: If the hydraulic system is not functioning properly, operators may notice a lag in response when using controls.
– Overheating: Excessive heat can cause hydraulic fluid to break down, leading to system failures.
2. Engine Performance Problems
Engine-related issues can significantly impact the performance of the Kobelco 904. Some common problems include:
– Reduced Power Output: This may be caused by fuel system issues or air intake restrictions.
– Excessive Smoke: Black or white smoke can indicate combustion problems or fuel quality issues.
– Starting Difficulties: Cold weather or battery issues can lead to trouble starting the engine.
3. Undercarriage Wear
The undercarriage is subjected to constant wear and tear, and problems can arise, such as:
– Track Misalignment: This can cause uneven wear and may lead to costly repairs.
– Worn Rollers and Idlers: Regular inspection is essential to prevent further damage.
– Track Tension Issues: Incorrect tension can lead to track slippage or breakage.
Recommendations for Maintenance and Troubleshooting
To mitigate these problems, regular maintenance and proactive measures are essential. Here are some recommendations:
1. Regular Inspections
Conduct routine inspections of the hydraulic system, engine, and undercarriage. Look for signs of wear, leaks, or other issues. Key areas to inspect include:
– Hydraulic hoses and fittings
– Engine oil levels and condition
– Track tension and alignment
2. Maintain Fluid Levels
Ensure that all fluid levels, including hydraulic fluid, engine oil, and coolant, are maintained at recommended levels. Regularly check for contamination and replace fluids as needed.
3. Address Issues Promptly
If any problems are detected during inspections, address them immediately. Ignoring small issues can lead to larger, more expensive repairs down the line.
4. Operator Training
Ensure that operators are well-trained in the use of the Kobelco 904. Proper operation techniques can prevent unnecessary wear and tear. Key training points include:
– Understanding the machine’s capabilities and limitations
– Properly using hydraulic controls
– Regularly monitoring machine performance
5. Schedule Professional Maintenance
Consider scheduling regular maintenance with a qualified technician. They can perform more in-depth inspections and repairs that may be beyond the scope of routine checks.
By being aware of common problems and implementing a proactive maintenance strategy, operators can enhance the performance and longevity of the Kobelco 904 excavator.