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The Akerman H7MC is one of the significant models in the category of hydraulic crawler excavators, and its reputation for robustness and reliable performance has made it a favorite among heavy equipment operators. The Swedish-manufactured machine is known for its versatility in construction, mining, and demolition, providing operators with the tools necessary for a wide range of tasks. In this article, we will take an in-depth look at the Akerman H7MC, exploring its design, performance, and maintenance considerations, as well as its historical background.
History of Akerman and the H7MC Excavator
Akerman, a Swedish manufacturer, has long been known for producing high-quality hydraulic machinery. Originally founded in the early 20th century, Akerman rose to prominence in the construction machinery industry with its line of reliable and durable excavators. The H7MC was introduced as part of their mid-range lineup, designed to meet the demands of construction and excavation projects in both urban and rural settings.
The H7MC was developed during a period when the demand for more powerful, yet versatile, hydraulic excavators was growing. Akerman's approach combined advanced hydraulic systems with durable undercarriages to ensure reliability and high productivity. The model quickly became known for its stability, even in tough working environments, and its ability to handle large-scale excavation tasks with ease.
However, like many companies in the construction equipment sector, Akerman was eventually acquired by Volvo, which led to changes in production and model lineup. Despite this, the H7MC's legacy continues to influence Volvo's own hydraulic excavators.
Key Specifications of the Akerman H7MC
The Akerman H7MC is designed to deliver optimal performance for various construction and heavy lifting tasks. Below are the key specifications that define its capabilities:
The Akerman H7MC offers excellent operational performance, which makes it suitable for a range of applications including:
Common Issues and Troubleshooting
As with any piece of heavy equipment, the Akerman H7MC is prone to certain issues over time. Here are some of the common problems and potential solutions:
1. Hydraulic System Problems
Hydraulic issues are common in older machinery and can lead to performance degradation. Common symptoms include slower operation of the boom, arm, or bucket, or the failure of the hydraulics to lift the load.
Power loss can occur due to a variety of factors such as fuel system issues, clogged air filters, or general wear and tear.
The tracks and undercarriage of the Akerman H7MC are built for durability, but wear can still occur over time, especially if the machine operates on abrasive surfaces or heavy workloads.
Electrical components, including lights, fuses, and the battery, may fail as the excavator ages, particularly in machines that have been used for extended periods.
To keep the Akerman H7MC operating at its best, regular maintenance is essential. Here are some key maintenance tips to prolong the life of the machine:
The Akerman H7MC is a highly capable and versatile hydraulic crawler excavator that has earned its place in construction, mining, and demolition sectors. Known for its rugged design and powerful performance, this machine continues to be a valuable asset for many operators. With regular maintenance and care, the H7MC can deliver reliable service for many years. Whether used for excavation, material handling, or demolition, the Akerman H7MC remains an important part of the heavy equipment landscape.
History of Akerman and the H7MC Excavator
Akerman, a Swedish manufacturer, has long been known for producing high-quality hydraulic machinery. Originally founded in the early 20th century, Akerman rose to prominence in the construction machinery industry with its line of reliable and durable excavators. The H7MC was introduced as part of their mid-range lineup, designed to meet the demands of construction and excavation projects in both urban and rural settings.
The H7MC was developed during a period when the demand for more powerful, yet versatile, hydraulic excavators was growing. Akerman's approach combined advanced hydraulic systems with durable undercarriages to ensure reliability and high productivity. The model quickly became known for its stability, even in tough working environments, and its ability to handle large-scale excavation tasks with ease.
However, like many companies in the construction equipment sector, Akerman was eventually acquired by Volvo, which led to changes in production and model lineup. Despite this, the H7MC's legacy continues to influence Volvo's own hydraulic excavators.
Key Specifications of the Akerman H7MC
The Akerman H7MC is designed to deliver optimal performance for various construction and heavy lifting tasks. Below are the key specifications that define its capabilities:
- Engine Power: Typically equipped with a 6-cylinder diesel engine that produces around 160 horsepower, giving it sufficient power for a wide range of tasks.
- Operating Weight: The H7MC weighs approximately 16,000–18,000 kg (35,000–39,700 lbs), making it a heavy-duty machine suitable for large-scale excavation.
- Hydraulic System: The hydraulic system is designed for high efficiency, offering a flow rate that ensures smooth and powerful operation of the boom and bucket.
- Bucket Capacity: The standard bucket capacity varies, but it typically ranges from 0.8 m³ to 1.2 m³ depending on the job requirements.
- Boom and Arm Length: The length of the boom and arm configuration is designed to provide extended reach and digging depth, usually reaching up to 6-7 meters.
- Fuel Tank Capacity: The fuel tank holds approximately 350–400 liters, providing extended work hours before needing a refill.
The Akerman H7MC offers excellent operational performance, which makes it suitable for a range of applications including:
- Excavation: Its powerful hydraulic system and reach make it ideal for digging, trenching, and other excavation tasks. The 160-horsepower engine ensures that it can tackle tough materials like clay, gravel, and even soft rock.
- Material Handling: Equipped with a high-capacity bucket, the H7MC can lift and move heavy materials, making it useful in both construction sites and material stockpiling yards.
- Demolition: With the right attachment, the H7MC excels in demolition tasks, where precision and power are required to break down concrete and other tough materials.
- Versatility: The H7MC's versatility is one of its major strengths. It can be used with various attachments, including hydraulic hammers, grabs, and rippers, which extend its functionality beyond the basic bucket attachment.
Common Issues and Troubleshooting
As with any piece of heavy equipment, the Akerman H7MC is prone to certain issues over time. Here are some of the common problems and potential solutions:
1. Hydraulic System Problems
Hydraulic issues are common in older machinery and can lead to performance degradation. Common symptoms include slower operation of the boom, arm, or bucket, or the failure of the hydraulics to lift the load.
- Symptoms: Sluggish hydraulic movement, inconsistent boom and bucket response.
- Solution: Regularly inspect hydraulic fluid levels and replace fluids according to the manufacturer’s specifications. Check for leaks in hoses and seals and replace worn components to prevent further damage to the hydraulic pump.
Power loss can occur due to a variety of factors such as fuel system issues, clogged air filters, or general wear and tear.
- Symptoms: Reduced engine performance, sluggish acceleration, or difficulty starting the machine.
- Solution: Ensure that the air filters are clean and replace them if necessary. If the power loss persists, inspect the fuel injectors and fuel pump for issues. Cleaning or replacing these components can restore normal operation.
The tracks and undercarriage of the Akerman H7MC are built for durability, but wear can still occur over time, especially if the machine operates on abrasive surfaces or heavy workloads.
- Symptoms: Uneven wear on tracks, loose track tension, or noticeable slippage when driving.
- Solution: Regularly inspect the tracks for signs of damage or wear. Check track tension and adjust it as necessary. If the tracks are severely worn, consider replacing them to prevent further damage to the undercarriage.
Electrical components, including lights, fuses, and the battery, may fail as the excavator ages, particularly in machines that have been used for extended periods.
- Symptoms: Inconsistent electrical behavior, failure of lights, or the machine not starting.
- Solution: Check the battery voltage and ensure that the alternator is charging properly. Inspect wiring for corrosion or loose connections and replace damaged parts.
To keep the Akerman H7MC operating at its best, regular maintenance is essential. Here are some key maintenance tips to prolong the life of the machine:
- Regular Fluid Changes: Change engine oil, hydraulic fluid, and transmission oil according to the maintenance schedule. Keeping fluids clean and at proper levels is crucial to maintaining the machine’s performance.
- Track Care: Inspect the undercarriage and tracks regularly. Clean the tracks to prevent the buildup of dirt and debris, and monitor track tension to ensure proper adjustment.
- Hydraulic System Maintenance: Check the hydraulic system for leaks, and replace the fluid and filters regularly to ensure smooth operation.
- Cooling System Maintenance: Ensure that the radiator and cooling system are functioning properly, especially in hot working conditions. Clean the radiator regularly to avoid overheating.
The Akerman H7MC is a highly capable and versatile hydraulic crawler excavator that has earned its place in construction, mining, and demolition sectors. Known for its rugged design and powerful performance, this machine continues to be a valuable asset for many operators. With regular maintenance and care, the H7MC can deliver reliable service for many years. Whether used for excavation, material handling, or demolition, the Akerman H7MC remains an important part of the heavy equipment landscape.
