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Overview of the Kubota KX121-3 Excavator
The Kubota KX121-3 is a compact excavator that has made a name for itself in the construction and landscaping industries. Known for its reliability and versatility, this machine is designed to tackle a variety of tasks, from digging and grading to utility work and site preparation. With its powerful performance and compact size, the KX121-3 is an ideal choice for both small and large projects, making it a favorite among contractors and operators alike.
Key Features and Benefits
One of the standout features of the KX121-3 is its impressive digging capability. With a maximum digging depth of around 10 feet, this excavator can reach depths that many of its competitors struggle to achieve. The machine’s powerful hydraulic system provides excellent lifting and digging force, allowing operators to handle tough materials with ease.
Another significant advantage of the KX121-3 is its compact design. With a width of just over 5 feet, it can easily navigate tight job sites and urban environments where space is limited. This compactness does not come at the expense of performance; the KX121-3 offers a robust operating weight, providing stability and strength during operation.
The KX121-3 also boasts an ergonomic operator’s cabin, designed for comfort and efficiency. The spacious interior features intuitive controls, excellent visibility, and adjustable seating, ensuring that operators can work for extended periods without fatigue. Additionally, the machine’s low noise levels and reduced emissions make it an environmentally friendly option, aligning with modern sustainability standards.
In terms of maintenance, the Kubota KX121-3 is designed for ease of service. Key components are easily accessible, allowing for quick inspections and routine maintenance tasks. This feature not only minimizes downtime but also extends the lifespan of the machine, making it a smart investment for any contractor.
Overall, the Kubota KX121-3 excavator combines power, efficiency, and user-friendly design, making it a top choice for those in need of a reliable compact excavator. Whether you’re digging trenches, clearing land, or performing demolition work, the KX121-3 is equipped to handle the job with precision and ease.
Kubota KX121-3 Excavator Specs
The Kubota KX121-3 excavator is engineered to deliver exceptional performance and versatility. Below, we delve into the detailed specifications that make this machine a reliable choice for various applications.
Engine Specifications
The heart of the KX121-3 is its powerful engine, which provides the necessary muscle for demanding tasks. Here’s a breakdown of the engine specifications:
| Specification | Details |
|---|---|
| Engine Model | Kubota V2203-M-DI-E3 |
| Type | Diesel, 4-cylinder |
| Net Power | 24.8 kW (33.2 HP) @ 2,400 RPM |
| Displacement | 2.2 L (134.1 cu in) |
| Max Torque | 96.5 Nm (71.2 lb-ft) @ 1,600 RPM |
| Fuel Tank Capacity | 30 L (7.9 gal) |
Dimensions
The dimensions of the KX121-3 are designed to optimize both performance and maneuverability, making it suitable for various job sites.
| Specification | Details |
|---|---|
| Overall Length | 4,220 mm (165.9 in) |
| Overall Width | 1,550 mm (61.0 in) |
| Overall Height | 2,500 mm (98.4 in) |
| Track Width | 300 mm (11.8 in) |
| Track Length on Ground | 1,850 mm (72.8 in) |
| Wheelbase | 1,400 mm (55.1 in) |
Weight and Capacity
Understanding the weight and capacity of the KX121-3 is crucial for assessing its operational limits.
| Specification | Details |
|---|---|
| Operating Weight | 2,600 kg (5,732 lbs) |
| Bucket Capacity | 0.09 – 0.15 m³ (0.12 – 0.20 yd³) |
| Max Digging Depth | 3,050 mm (120.1 in) |
| Max Reach | 5,300 mm (208.7 in) |
| Max Dumping Height | 2,800 mm (110.2 in) |
Working Performance
The working performance of the KX121-3 is a testament to its engineering excellence, allowing operators to maximize productivity.
| Specification | Details |
|---|---|
| Arm Length | 1,500 mm (59.1 in) |
| Bucket Digging Force | 22.5 kN (5,060 lbf) |
| Arm Digging Force | 15.5 kN (3,490 lbf) |
| Travel Speed (High) | 4.1 km/h (2.5 mph) |
| Travel Speed (Low) | 2.3 km/h (1.4 mph) |
The Kubota KX121-3 excavator is not just about specs; it’s about delivering dependable performance on the job. With its robust engine, compact dimensions, and impressive working capabilities, it stands out as a reliable workhorse for any contractor looking to get the job done efficiently.
Problems and Recommendations for the Kubota KX121-3 Excavator
While the Kubota KX121-3 is a robust and reliable machine, like any piece of heavy equipment, it is not without its challenges. Understanding these potential issues and knowing how to address them can help operators maximize the lifespan and performance of the excavator.
Common Problems
Here are some of the most frequently reported problems with the KX121-3:
- Hydraulic System Issues: Operators may experience leaks or reduced performance in the hydraulic system, which can lead to slower operation and decreased efficiency.
- Engine Performance: Some users report issues with engine starting, particularly in colder weather. This can be attributed to battery health or fuel quality.
- Track Wear: The tracks can wear out faster than expected, especially if the machine is frequently operated on rough terrain or improperly maintained.
- Electrical Problems: Electrical issues, such as faulty wiring or blown fuses, can cause operational disruptions and require immediate attention.
- Cab Comfort: While the cab is generally spacious, some operators find the seat uncomfortable for long hours of operation, leading to fatigue.
Practical Recommendations
To mitigate these issues and ensure optimal performance, consider the following recommendations:
Regular Maintenance
– Schedule routine maintenance checks to inspect the hydraulic system, engine, and electrical components.
– Change the hydraulic fluid and filters as per the manufacturer’s guidelines to prevent system failures.
– Keep the engine air filter clean to ensure proper airflow and engine performance.
Track Management
– Regularly inspect the tracks for wear and tear. Replace them if you notice significant damage or wear.
– Ensure proper tension on the tracks to avoid excessive wear and improve overall performance.
Cold Weather Precautions
– In colder climates, use a block heater to warm the engine before starting. This can help prevent starting issues.
– Use high-quality fuel that is suitable for low temperatures to improve engine reliability.
Electrical System Checks
– Regularly inspect the wiring and connections for signs of wear or corrosion. Address any issues promptly to avoid electrical failures.
– Keep spare fuses and bulbs on hand to quickly resolve minor electrical problems.
Operator Comfort
– Invest in a high-quality seat cushion or aftermarket seat if you find the standard seat uncomfortable.
– Adjust the seat and controls to fit your body properly, reducing fatigue during long work hours.
By being proactive about maintenance and addressing common issues, operators can significantly enhance the performance and longevity of the Kubota KX121-3 excavator. This not only ensures a smoother operation but also contributes to overall job site efficiency.