Case 850G Dozer Belt Diagram and Maintenance Guide

[MikePhua]

The Case 850G Dozer is a reliable and powerful machine used in various construction, mining, and agricultural projects. To keep this equipment running efficiently, regular maintenance is essential. One of the most crucial components that need attention is the belt system. Understanding the belt diagram and knowing how to maintain and troubleshoot belt-related issues can extend the life of your dozer and ensure smooth operation.
Key Features of the Case 850G Dozer
Before diving into the specifics of the belt system, it's important to understand the basic features of the Case 850G Dozer:

• Engine and Power: The Case 850G is powered by a turbocharged engine, offering a solid combination of power and fuel efficiency. It delivers about 95-105 horsepower, making it capable of handling various earth-moving tasks.
  
• Hydraulic System: It utilizes a hydraulic system for steering, lifting, and operating attachments, which is essential for its versatility.
  
• Crawler Tracks: Like most dozers, the 850G is equipped with durable crawler tracks designed to offer excellent traction and stability on rough terrains.
  

The belt system, which helps power critical components such as the alternator, air conditioning, and hydraulic pumps, plays a vital role in the overall performance of the machine. The belt system must be regularly inspected and maintained to ensure these systems function properly.
Understanding the Belt System
The belt system of the Case 850G Dozer is responsible for driving several key components, including the engine accessories like the alternator, hydraulic pump, and the fan. These belts are powered by the engine’s crankshaft, and they operate through a series of pulleys and tensioners.
Common Components of the Belt System

• Alternator Belt: Powers the alternator, ensuring that the electrical system of the dozer stays charged.
  
• Hydraulic Pump Belt: Drives the hydraulic pump, which powers the dozer's hydraulic functions, such as lifting and steering.
  
• Fan Belt: Operates the radiator fan to maintain the engine's temperature by ensuring proper airflow.
  
• Tensioners: These ensure that the belts remain tight enough to function properly and don’t slip or wear prematurely.
  
• Pulleys: Pulleys guide and direct the belts around the engine, maintaining proper alignment and belt routing.
  

Case 850G Dozer Belt Diagram: Key Information
Understanding the correct routing and alignment of the belts is crucial to prevent any failures or inefficiencies. The belt diagram for the Case 850G Dozer provides this vital information, showing how each belt should be routed across pulleys, how it interacts with other components, and the direction of rotation.
Here’s a basic overview of the important points typically covered in a belt diagram for a dozer like the 850G:

1. Correct Belt Routing: The diagram will show the exact path each belt follows, from the crankshaft to the components it powers. This is essential to ensure the belts are aligned properly and function as designed.
   
2. Belt Sizes: It will list the dimensions of each belt, such as length and width, which is necessary for replacement or adjustments.
   
3. Tensioning Details: The diagram will indicate where the tensioners are located and how much tension is needed for each belt. Tensioning is crucial because too much slack can cause slippage, while excessive tension can lead to premature wear.
   

Maintaining the Belt System
Proper maintenance of the belt system is vital for optimal performance. Here are a few key tips and best practices to maintain the belt system of your Case 850G Dozer:
1. Regular Inspection

• Check for Wear: Inspect the belts for visible signs of wear, such as cracks, fraying, or glazing. If you notice these issues, it may be time to replace the belts.
  
• Check Tension: Make sure the belts have the proper tension. Belts that are too tight can cause excessive wear on the bearings, while belts that are too loose can slip and reduce performance.
  
• Check for Misalignment: Misalignment of the pulleys or belts can cause uneven wear and premature failure. Inspect the alignment and adjust as necessary.
  

2. Replacing the Belts

• Follow the Belt Diagram: When replacing the belts, make sure to follow the belt routing diagram provided by Case to ensure everything is installed correctly.
  
• Use OEM Parts: Always use original equipment manufacturer (OEM) belts to ensure compatibility and optimal performance. Using non-OEM parts may result in quicker wear and compatibility issues.
  
• Replacement Frequency: Belts generally need replacing every 1,000-2,000 hours of operation, depending on use and environmental conditions. However, if they show signs of wear, they should be replaced sooner.
  

3. Lubrication and Cleaning

• Lubricate the Tensioners: Ensure the tensioners are properly lubricated to reduce friction and prevent premature wear.
  
• Clean the Pulleys and Belts: Dirt, dust, and oil can build up on the belts and pulleys, affecting the belt's efficiency. Use a clean cloth to wipe down the belts and pulleys periodically.
  

4. Monitor for Overheating

• Overheating is a common issue for the engine and belts. Ensure that the radiator fan and all cooling systems are functioning properly. If the belts are slipping due to overheating, it may be a sign of an underlying issue with the fan or other cooling components.
  

Troubleshooting Belt-Related Issues
Even with regular maintenance, belt-related issues may still arise. Here are a few common troubleshooting steps:
1. Belt Slipping

• Cause: A slipping belt can occur if it is too loose or the pulleys are misaligned.
  
• Solution: Tighten the belt using the tensioning system and verify that the pulleys are properly aligned. If the issue persists, check for wear on the belts or pulleys.
  

2. Belt Breakage

• Cause: Belts may break due to excessive wear, incorrect tension, or exposure to extreme operating conditions.
  
• Solution: Replace the damaged belt immediately. Ensure that the correct type of belt is used, and check the pulleys for wear that might cause the new belt to fail prematurely.
  

3. Overheating

• Cause: Overheating could indicate a malfunction in the cooling system, potentially caused by a worn fan belt or a damaged radiator.
  
• Solution: Inspect the fan belt for proper tension and alignment. Check the cooling system, including the radiator, for any clogs or leaks that may prevent the engine from cooling effectively.
  

Conclusion
Maintaining the belt system of the Case 850G Dozer is crucial to ensuring the machine operates at peak efficiency. By regularly inspecting the belts, following the correct belt diagram for routing, and addressing any issues promptly, operators can avoid costly breakdowns and prolong the life of the equipment. Remember to replace belts at the recommended intervals and to always use OEM parts to guarantee optimal performance.
As a key component of the dozer's engine systems, the belts work in harmony with other parts like the hydraulic pump, alternator, and fan to ensure the machine operates smoothly. With proper care, the Case 850G Dozer can continue to tackle tough jobs in a variety of settings, from construction sites to land reclamation projects.