Daewoo Solar 170: An In-Depth Review

[MikePhua]

The Daewoo Solar 170 is a mid-sized crawler excavator that was introduced to the market as part of the Solar series by Daewoo, a company renowned for its heavy equipment in the construction industry. Over time, this model has garnered attention for its performance, reliability, and versatility in a variety of construction and excavation applications. However, like any heavy equipment, it comes with its strengths and weaknesses. This article provides a detailed overview of the Daewoo Solar 170, including its features, advantages, and common issues faced by owners and operators.
Introduction to Daewoo Heavy Equipment
Daewoo, now operating under the brand name Doosan, has a rich history in the manufacturing of construction and heavy machinery. The Daewoo Solar series, which includes the Solar 170, was a significant step in the company’s efforts to compete in the global heavy equipment market. Over the years, Doosan has acquired and integrated several brands to become one of the largest manufacturers of construction equipment worldwide. The Solar 170 is part of their early foray into the hydraulic excavator market and was aimed at offering a competitive and reliable option for earthmoving contractors.
Key Specifications of the Daewoo Solar 170
The Daewoo Solar 170 is a hydraulic excavator designed to handle a variety of heavy-duty tasks, from digging and lifting to grading and material handling. Some of its key specifications include:

• Engine Power: The Solar 170 is powered by a robust engine, typically delivering between 120-140 horsepower, depending on the model variant and market. This power allows the excavator to perform efficiently across various construction tasks.
  
• Operating Weight: The operating weight of the Daewoo Solar 170 is approximately 17,000-18,000 kg (37,500-39,600 lbs), which places it in the mid-sized class for hydraulic excavators. This weight allows for a balance between power, stability, and maneuverability in a variety of environments.
  
• Bucket Capacity: The machine features a bucket capacity ranging from 0.6 to 0.8 cubic meters (0.8 to 1.05 cubic yards), which is suitable for handling medium to large-scale excavation and loading tasks.
  
• Digging Depth: The maximum digging depth of the Solar 170 is around 6 meters (19.7 feet), which enables operators to reach considerable depths when performing tasks like trenching and foundation excavation.
  
• Arm Reach: The machine’s arm reach extends up to 8 meters (26.2 feet), providing the flexibility needed for larger-scale excavation projects where depth and reach are crucial.
  
• Hydraulic System: The Daewoo Solar 170 features a hydraulic system that provides smooth and precise control over various attachments and digging operations. The hydraulic pumps offer high efficiency, contributing to the machine's overall productivity.
  

Performance and Capabilities
The Daewoo Solar 170 excels in several key areas, making it a versatile choice for construction and excavation tasks. These include:

• Fuel Efficiency: The Solar 170 was designed to be fuel-efficient for its class, helping reduce operational costs for long-term projects. The hydraulic system and engine are engineered to minimize fuel consumption while maximizing power output.
  
• Hydraulic Efficiency: The hydraulic system on the Solar 170 is known for its efficiency in providing smooth and responsive operation. The combination of advanced load-sensing pumps and multi-function control valves allows the operator to manage various tasks with ease and precision.
  
• Maneuverability and Stability: With its well-balanced weight and compact design, the Solar 170 offers excellent maneuverability and stability. This makes it ideal for operating in tight spaces, such as urban construction sites or areas with restricted access.
  
• Operator Comfort: The Solar 170 is designed with operator comfort in mind, offering a spacious cabin with good visibility, ergonomic controls, and air conditioning. This allows operators to work for extended hours without significant fatigue.
  

Common Issues with the Daewoo Solar 170
Like many pieces of heavy equipment, the Daewoo Solar 170 is not without its common issues. Being a hydraulic excavator, it is especially prone to a few recurring challenges:

• Hydraulic Leaks: One of the most commonly reported issues with the Solar 170 is hydraulic fluid leakage. Leaks can occur from hoses, seals, or fittings, which can result in a loss of hydraulic pressure and reduced digging performance. Regular inspection of hydraulic components is crucial to prevent this problem.
  
• Engine Overheating: Overheating can occur if the cooling system is not maintained properly. This issue can arise due to blocked air filters, insufficient coolant levels, or malfunctioning thermostats. Overheating can cause engine performance issues or even engine failure if not addressed.
  
• Electrical System Failures: Owners have also reported issues with the electrical system, including faulty sensors and wiring connections. These electrical issues can lead to erratic performance, especially with the monitoring systems and the engine control unit (ECU).
  
• Undercarriage Wear: Like many excavators, the undercarriage components of the Daewoo Solar 170 are subject to wear and tear, particularly when operating in rough or abrasive environments. Components such as track rollers, idlers, and sprockets need to be inspected and maintained regularly to avoid costly repairs.
  
• Hydraulic Cylinder Seal Failures: The hydraulic cylinders, which are crucial for lifting and digging tasks, can suffer from seal failure over time. This can cause a reduction in the machine’s hydraulic pressure, leading to slower operation and reduced performance.
  

Maintenance and Longevity of the Daewoo Solar 170
The Daewoo Solar 170, like all heavy equipment, requires regular maintenance to ensure its longevity and optimal performance. Some maintenance tips include:

• Regular Hydraulic System Inspections: The hydraulic system should be checked periodically for any leaks, damaged hoses, or worn-out seals. Proper maintenance of the hydraulic system helps prevent system failures and keeps the excavator working efficiently.
  
• Engine and Cooling System Care: Maintaining proper coolant levels, cleaning air filters, and ensuring the radiator is free from debris are essential steps in preventing overheating and keeping the engine running smoothly.
  
• Track Maintenance: Given the wear and tear the tracks endure, it’s important to regularly inspect the track tension and undercarriage components. Proper adjustment and replacement of worn-out components can help extend the life of the machine.
  
• Electrical System Checks: A routine check-up of the electrical system, including battery health and sensor performance, is vital for avoiding potential electrical failures.
  

Conclusion
The Daewoo Solar 170 is a capable and reliable hydraulic excavator that has earned its place in the competitive mid-sized excavator market. Its combination of power, efficiency, and maneuverability makes it a solid choice for a wide range of construction tasks. While it does have its share of common issues, regular maintenance and timely repairs can ensure that the Solar 170 remains a productive workhorse on any job site.
For anyone considering the purchase or rental of a mid-sized excavator, the Daewoo Solar 170 offers excellent value for the price. With proper care, it can continue to perform well for many years, helping contractors and operators efficiently complete their projects.