John Deere 850JR Overview

[MikePhua]

The John Deere 850JR is a compact, versatile crawler loader that has gained recognition in the construction and agriculture industries for its performance, reliability, and durability. As part of John Deere's extensive line of equipment, the 850JR is engineered for a variety of applications, such as digging, grading, loading, and hauling. It stands out due to its compact size, making it suitable for use in tight spaces where larger machines might struggle. In this article, we will delve into the specifications, performance features, and common maintenance tips for the John Deere 850JR, as well as the benefits of using such a machine in different industries.
History of John Deere Construction Equipment
John Deere, founded in 1837, initially made its mark in the agriculture industry by creating durable, high-quality plows. Over the decades, the company expanded its product line to include a wide range of heavy equipment for construction, forestry, and landscaping applications. The introduction of compact and mid-sized loaders such as the 850JR further solidified John Deere's reputation for providing machines that can handle demanding tasks with precision and power.
The John Deere 850JR crawler loader is one of the company's flagship models in the compact loader segment. Though small in size compared to traditional crawler tractors, the 850JR packs a punch in terms of lifting capacity, speed, and versatility, making it a preferred choice for jobs requiring maneuverability in confined spaces.
Key Specifications and Features of the John Deere 850JR
The John Deere 850JR is designed to offer a combination of power and compactness, making it ideal for a variety of tasks in construction, agriculture, and other industries. Here’s a breakdown of the key specifications and features:

• Engine Power: 72.5 horsepower (54.2 kW)
  
• Operating Weight: 14,000 lbs (6,350 kg)
  
• Bucket Capacity: 0.75 – 1.0 cubic yards (0.57 – 0.76 m³)
  
• Track Width: 18 inches (457 mm)
  
• Maximum Travel Speed: 6.5 mph (10.5 km/h)
  
• Hydraulic Flow: 16.8 gpm (63.5 L/min)
  
• Lift Capacity: 3,500 lbs (1,588 kg)
  
• Length (without bucket): 13.2 ft (4.02 m)
  
• Width (with standard tracks): 6.2 ft (1.88 m)
  
• Height (to top of cab): 9.6 ft (2.93 m)
  

The 850JR’s engine delivers a solid 72.5 horsepower, giving it enough power to handle moderate to heavy lifting and digging tasks. Its compact dimensions, with a track width of just 18 inches, make it an excellent choice for operations in tight or congested areas where maneuverability is essential. The machine’s bucket capacity ranges from 0.75 to 1 cubic yard, making it suitable for tasks like material handling, trenching, and light grading.
Performance Features

• Hydrostatic Transmission: The John Deere 850JR uses a hydrostatic transmission system, which provides smooth and responsive control over the loader’s speed and direction. This type of transmission allows for seamless operation in both forward and reverse, and it enables the operator to adjust the speed precisely based on the task at hand.
  
• Hydraulic System: The hydraulic system on the 850JR is designed for optimal lifting and digging performance. The system provides a high flow rate of 16.8 gallons per minute (63.5 L/min), allowing the machine to power attachments like buckets, forks, and other hydraulic implements. The system is also equipped with load sensing, which ensures that the right amount of hydraulic power is used for each task.
  
• Operator Comfort: The 850JR’s cab is designed with the operator’s comfort in mind. It features an ergonomic layout with easy-to-reach controls and ample visibility. The enclosed cab reduces operator fatigue by providing protection from the elements, while the open operator platform offers more flexibility in terms of visibility and ease of entry and exit.
  
• Maneuverability: Due to its compact size and relatively lightweight design, the 850JR excels at navigating confined workspaces. Its responsive hydraulic controls and precise maneuvering capabilities allow operators to perform tasks with accuracy and efficiency, even in small or restricted areas.
  

Common Applications for the John Deere 850JR
The John Deere 850JR crawler loader is suitable for a wide variety of applications across multiple industries. Here are some of the most common uses:

1. Construction and Demolition: In construction, the 850JR is ideal for tasks like site preparation, digging, grading, and loading materials. Its compact design allows it to work in confined spaces such as urban construction sites or narrow trenches. Additionally, its lifting and digging capabilities make it suitable for handling demolition debris.
   
2. Landscaping: Landscape contractors often rely on the 850JR for grading, trenching, and loading materials such as soil, gravel, and mulch. The loader’s small size makes it perfect for residential or commercial landscaping projects where space is limited.
   
3. Agriculture: In agriculture, the 850JR can be used for tasks like hauling feed, moving hay bales, and general material handling. Its versatility makes it useful on farms, especially when space is tight or the soil conditions are soft.
   
4. Forestry and Logging: The 850JR can also be employed in forestry applications, such as hauling logs, clearing brush, and preparing logging roads. Its powerful hydraulic system and robust build enable it to handle tough terrains commonly found in forested areas.
   
5. Utility Work: The loader’s digging and lifting capabilities make it well-suited for utility work, such as digging trenches for pipes or cables and moving heavy materials across job sites.
   

Maintenance and Care for the John Deere 850JR
To keep the John Deere 850JR running smoothly and avoid costly repairs, it is essential to adhere to a regular maintenance schedule. Some basic maintenance tasks for this machine include:

1. Checking Hydraulic Fluid: Regularly check the hydraulic fluid levels and ensure they are within the recommended range. If the fluid is low or dirty, replace it to maintain the efficiency of the hydraulic system.
   
2. Inspecting Tracks and Undercarriage: The 850JR uses tracked undercarriage, which requires routine inspection for wear and damage. Proper track tension and cleanliness are essential to prevent premature wear or breakdowns.
   
3. Engine and Filter Maintenance: Change the engine oil, fuel filters, and air filters as part of a regular service schedule. These components are essential for maintaining engine performance and ensuring that the loader operates efficiently.
   
4. Greasing Pivot Points: Regularly grease all moving parts, including the loader arms and hydraulic cylinders, to minimize friction and wear.
   
5. Inspecting the Bucket: Regularly inspect the bucket for signs of wear or cracks. A worn bucket can affect the loader’s performance and may need to be replaced or repaired.
   

Conclusion
The John Deere 850JR crawler loader offers a perfect blend of power, maneuverability, and versatility, making it a valuable asset for contractors in construction, landscaping, agriculture, and utility work. Its compact size allows it to operate in spaces where larger machines cannot, while its powerful engine and hydraulic system ensure it can handle a wide variety of tasks. Routine maintenance and care will ensure that the 850JR continues to provide reliable service for many years, making it an essential tool for small to medium-scale projects across various industries.