Contents
Review and Overview of the Komatsu D155 Dozer
The Komatsu D155 dozer is a heavy-duty machine that stands out in the world of earthmoving equipment. Known for its robust performance and reliability, this bulldozer has earned a reputation among contractors and operators alike. Whether you’re tackling large-scale construction projects, road building, or land clearing, the D155 is designed to handle the toughest tasks with ease.
Performance and Versatility
One of the key features of the D155 is its impressive power-to-weight ratio. With a powerful engine and a well-designed hydraulic system, this dozer can push, pull, and grade materials efficiently. The D155 is equipped with a high-performance Komatsu engine that delivers ample horsepower, making it suitable for a variety of applications. Its versatility is further enhanced by the availability of different blade types and attachments, allowing operators to customize the machine for specific jobs.
The D155’s design prioritizes operator comfort and control. The spacious cab is equipped with ergonomic controls and excellent visibility, enabling operators to work for extended periods without fatigue. Additionally, the dozer’s advanced hydraulic system provides smooth and precise movements, making it easier to navigate challenging terrains and execute intricate tasks.
Durability and Maintenance
Durability is a hallmark of the Komatsu brand, and the D155 is no exception. Constructed with high-quality materials and components, this dozer is built to withstand the rigors of demanding work environments. The undercarriage is designed for longevity, reducing wear and tear, which translates to lower maintenance costs over time.
Regular maintenance is crucial for keeping the D155 in peak condition. Fortunately, Komatsu has made maintenance straightforward, with easily accessible components and a design that minimizes downtime. Operators can perform routine checks and services without excessive hassle, ensuring that the machine remains operational and efficient.
Safety Features
While the primary focus of the D155 is its performance, safety is not overlooked. The dozer is equipped with essential safety features designed to protect the operator and those working nearby. These include a ROPS (Roll-Over Protective Structure) cab, which provides protection in the event of a rollover, and a well-designed layout that minimizes blind spots. Operators are encouraged to adhere to safety guidelines and best practices to ensure a secure working environment.
In summary, the Komatsu D155 dozer is a powerful, versatile, and durable machine that excels in various applications. Its combination of performance, operator comfort, and safety features makes it a top choice for those in the construction and earthmoving industries. Whether you’re a seasoned operator or a contractor looking to invest in reliable equipment, the D155 is worth considering for your fleet.
Komatsu D155 Dozer Specs
The Komatsu D155 dozer is engineered for heavy-duty performance, making it a staple in construction and earthmoving projects. Below, we delve into the detailed specifications that define this powerful machine, highlighting its engine, dimensions, weight, and working capabilities.
Engine Specifications
The heart of the D155 is its engine, which is designed for optimal performance and fuel efficiency. Here’s a breakdown of the engine specifications:
| Specification | Details |
|---|---|
| Engine Model | Komatsu SAA6D125E-5 |
| Type | 6-Cylinder, Water-Cooled, Turbocharged |
| Net Power | 150 kW (201 HP) @ 2,000 RPM |
| Displacement | 7.2 liters (439 cubic inches) |
| Max Torque | 850 Nm (627 lb-ft) @ 1,400 RPM |
| Fuel Tank Capacity | 300 liters (79 gallons) |
Dimensions
The dimensions of the D155 are crucial for understanding its capabilities and suitability for various tasks. Here’s a detailed look at the dimensions:
| Specification | Details |
|---|---|
| Overall Length | 3,180 mm (125.2 inches) |
| Overall Width | 3,600 mm (141.7 inches) |
| Overall Height | 3,270 mm (128.8 inches) |
| Track Width | 600 mm (23.6 inches) |
| Ground Clearance | 400 mm (15.7 inches) |
| Wheelbase | 2,450 mm (96.5 inches) |
Weight
Weight plays a significant role in the stability and performance of the dozer. Here’s what you need to know about the D155’s weight:
| Specification | Details |
|---|---|
| Operating Weight | 16,000 kg (35,274 lbs) |
| Blade Capacity | 5.5 m³ (7.2 yd³) |
| Counterweight | 1,500 kg (3,307 lbs) |
Working Capabilities
The working capabilities of the D155 are what truly set it apart in the field. Below are the specifications that highlight its operational strengths:
| Specification | Details |
|---|---|
| Blade Type | U-Blade or Semi-U Blade |
| Max Blade Lift Height | 1,050 mm (41.3 inches) |
| Max Blade Depth | 500 mm (19.7 inches) |
| Max Tilt Angle | 5° |
| Max Speed | 11.5 km/h (7.1 mph) |
| Gradeability | 30° |
The Komatsu D155 dozer is a powerhouse that combines robust engineering with practical features, making it an essential tool for heavy-duty operations. Its specifications reflect a machine that is built to perform, ensuring that it can tackle the most challenging tasks in the field.
Problems and Recommendations for the Komatsu D155 Dozer
While the Komatsu D155 dozer is a robust and reliable machine, like any piece of heavy equipment, it can encounter issues that operators should be aware of. Understanding these potential problems and having practical recommendations can help maintain optimal performance and extend the lifespan of the dozer.
Common Problems
Operators may face several challenges when working with the D155. Here are some of the most common problems reported:
1. Hydraulic System Issues
– Symptoms: Slow or unresponsive hydraulic functions, leaks, or erratic movements.
– Causes: Contaminated hydraulic fluid, worn seals, or damaged hoses can lead to hydraulic failures.
2. Engine Performance Problems
– Symptoms: Reduced power, excessive smoke, or unusual noises.
– Causes: Clogged air filters, fuel system issues, or engine wear can affect performance.
3. Undercarriage Wear
– Symptoms: Uneven track wear, excessive vibration, or difficulty in steering.
– Causes: Poor maintenance, operating on rough terrain, or improper adjustments can lead to premature wear.
4. Electrical System Failures
– Symptoms: Dashboard warning lights, non-functioning controls, or starting issues.
– Causes: Faulty wiring, dead batteries, or malfunctioning sensors can disrupt electrical systems.
Practical Recommendations
To mitigate these issues and ensure the D155 operates smoothly, consider the following recommendations:
1. Regular Maintenance
– Schedule routine inspections to check hydraulic fluid levels, filters, and hoses.
– Change the hydraulic fluid and filters according to the manufacturer’s guidelines to prevent contamination.
2. Engine Care
– Keep air and fuel filters clean and replace them as needed to maintain engine efficiency.
– Monitor engine oil levels and change the oil regularly to reduce wear and tear.
3. Undercarriage Management
– Inspect the undercarriage frequently for signs of wear and replace components as necessary.
– Ensure proper track tension to avoid unnecessary strain on the undercarriage.
4. Electrical System Checks
– Regularly inspect wiring and connections for signs of wear or damage.
– Test the battery and charging system to ensure reliable starting and operation.
5. Operator Training
– Ensure that all operators are adequately trained in the use of the D155 to minimize misuse and potential damage.
– Encourage operators to report any unusual sounds or performance issues immediately.
6. Use Quality Parts
– When replacing parts, use genuine Komatsu components to maintain compatibility and performance.
– Avoid cheap alternatives that may not meet the required specifications.
By being proactive about maintenance and addressing issues promptly, operators can enhance the performance and longevity of the Komatsu D155 dozer. Understanding the common problems and implementing these recommendations will help ensure that this powerful machine remains a reliable asset on any job site.