Contents
Komatsu 390 Excavator: A Comprehensive Overview
The Komatsu 390 excavator stands as a formidable player in the heavy machinery arena, designed to tackle a variety of construction and excavation tasks with ease. Known for its robust build and advanced technology, this excavator is a go-to choice for contractors and operators who demand reliability and efficiency. Whether you’re digging foundations, grading land, or performing heavy lifting, the Komatsu 390 is engineered to deliver exceptional performance.
Performance and Versatility
What sets the Komatsu 390 apart is its versatility. This machine is not just about brute strength; it’s equipped with a range of features that enhance its operational capabilities. With a powerful hydraulic system, the excavator can handle a variety of attachments, making it suitable for diverse applications. From trenching to material handling, the 390 adapts to the job at hand, allowing operators to maximize productivity without the need for multiple machines.
The excavator’s impressive digging depth and reach enable it to access hard-to-reach areas, making it ideal for both urban and rural projects. Its ability to operate in confined spaces without sacrificing power makes it a favorite among contractors who work in densely populated areas.
Operator Comfort and Control
Komatsu has prioritized operator comfort in the design of the 390 excavator. The spacious cab is equipped with ergonomic controls, providing a user-friendly experience that reduces fatigue during long working hours. The visibility from the cab is excellent, allowing operators to maintain awareness of their surroundings, which is crucial for safety and efficiency on the job site.
Additionally, the machine features advanced monitoring systems that provide real-time data on performance metrics. This allows operators to make informed decisions, optimizing fuel consumption and enhancing overall productivity. The intuitive interface ensures that even less experienced operators can quickly get the hang of the machine, reducing the learning curve.
Durability and Maintenance
Durability is a hallmark of the Komatsu brand, and the 390 excavator is no exception. Built with high-quality materials and components, this machine is designed to withstand the rigors of demanding job sites. Its robust undercarriage and reinforced structure ensure longevity, minimizing downtime due to repairs.
Maintenance is straightforward, with easily accessible service points that simplify routine checks. This design consideration not only extends the life of the machine but also reduces operational costs over time. Operators can focus on getting the job done rather than worrying about frequent breakdowns or complicated maintenance procedures.
In summary, the Komatsu 390 excavator is a powerhouse that combines performance, versatility, and operator comfort. Its robust design and advanced features make it an invaluable asset for any construction project, ensuring that tasks are completed efficiently and effectively.
Komatsu 390 Excavator Specifications
The Komatsu 390 excavator is engineered for heavy-duty tasks, and its specifications reflect its capability to perform in challenging environments. Below, we delve into the key specifications that define this robust machine, giving you a clearer picture of what it can do.
Engine Specifications
The heart of any excavator is its engine, and the Komatsu 390 does not disappoint. Here’s a breakdown of its engine specifications:
| Specification | Details |
|---|---|
| Engine Model | Komatsu SAA6D125E-5 |
| Type | 6-Cylinder, Turbocharged Diesel |
| Net Power | 257 HP (192 kW) @ 2,000 RPM |
| Displacement | 7.17 L (437 in³) |
| Max Torque | 1,200 Nm (885 lb-ft) @ 1,500 RPM |
| Fuel Tank Capacity | 400 L (105.7 gal) |
Dimensions
The dimensions of the Komatsu 390 excavator are designed for stability and maneuverability, making it suitable for various job sites.
| Specification | Details |
|---|---|
| Overall Length | 10,800 mm (425.2 in) |
| Overall Width | 3,340 mm (131.5 in) |
| Overall Height | 3,200 mm (126 in) |
| Track Length | 4,200 mm (165.4 in) |
| Track Width | 600 mm (23.6 in) |
| Ground Clearance | 450 mm (17.7 in) |
Weight
Weight plays a crucial role in the excavator’s performance, affecting its stability and digging power.
| Specification | Details |
|---|---|
| Operating Weight | 39,000 kg (86,000 lbs) |
| Counterweight | 9,000 kg (19,800 lbs) |
Working Specifications
The working capabilities of the Komatsu 390 excavator are impressive, making it a versatile machine for various tasks.
| Specification | Details |
|---|---|
| Max Digging Depth | 6,550 mm (257.5 in) |
| Max Reach | 10,300 mm (405.5 in) |
| Max Dumping Height | 6,200 mm (244.1 in) |
| Bucket Capacity | 1.6 m³ (2.1 yd³) |
| Hydraulic Flow Rate | 2 x 200 L/min (52.8 gal/min) |
| Max Hydraulic Pressure | 34.3 MPa (4,975 psi) |
The Komatsu 390 excavator is a well-rounded machine, equipped with specifications that cater to a wide range of construction and excavation needs. Its powerful engine, impressive dimensions, and robust working capabilities make it a reliable choice for any heavy-duty project.
Problems and Recommendations for the Komatsu 390 Excavator
While the Komatsu 390 excavator is a robust machine, like any piece of heavy equipment, it is not without its challenges. Understanding these potential problems and knowing how to address them can significantly enhance the longevity and performance of the excavator.
Common Problems
Despite its reputation for durability, operators may encounter several issues with the Komatsu 390. Here are some common problems:
1. Hydraulic System Issues
– Hydraulic leaks can occur due to wear and tear on hoses and seals.
– Insufficient hydraulic fluid can lead to decreased performance and power.
2. Engine Performance Problems
– Fuel quality can affect engine performance; using low-quality fuel may lead to clogging of filters.
– Overheating can occur if the cooling system is not maintained properly.
3. Electrical System Failures
– Electrical issues may arise from corroded connections or faulty wiring.
– Battery problems can lead to starting issues, especially in colder weather.
4. Undercarriage Wear
– The undercarriage components may wear out faster in rough terrain, leading to costly repairs.
– Track alignment issues can cause uneven wear and reduce overall efficiency.
Practical Recommendations
To mitigate these problems and ensure the Komatsu 390 operates at peak performance, consider the following recommendations:
1. Regular Maintenance
– Schedule routine inspections to check for hydraulic leaks and replace worn hoses.
– Change hydraulic fluid and filters as per the manufacturer’s recommendations to maintain optimal performance.
2. Engine Care
– Use high-quality fuel to prevent filter clogging and ensure smooth engine operation.
– Regularly check the cooling system for leaks and ensure that the radiator is clean to prevent overheating.
3. Electrical System Checks
– Inspect electrical connections regularly for corrosion and tighten any loose connections.
– Test the battery and charging system periodically to avoid starting issues.
4. Undercarriage Maintenance
– Monitor the condition of the tracks and rollers; replace them as needed to prevent further damage.
– Ensure proper track tension and alignment to extend the life of the undercarriage components.
5. Operator Training
– Invest in training for operators to ensure they understand the machine’s capabilities and limitations.
– Encourage operators to report any unusual sounds or performance issues immediately to prevent further damage.
By addressing these common problems and following the recommendations provided, operators can enhance the performance and lifespan of the Komatsu 390 excavator. Regular maintenance, operator training, and proactive measures will ensure that this powerful machine continues to deliver exceptional results on the job site.