John Deere 350 Crawler Loader: A Comprehensive Overview

[MikePhua]

Introduction
The John Deere 350 Crawler Loader, introduced in the mid-1960s, stands as a testament to John Deere's commitment to producing durable and versatile construction equipment. Designed for various applications, including trenching, grading, and material handling, the 350 series has become a staple in the heavy equipment industry.

Key Specifications

• Engine Options:
  • Gasoline: 3-cylinder, 135 cu in (2.2 L)
    
  • Diesel: 3-cylinder, 152 cu in (2.5 L)
    
• Horsepower:
  • Gross: 46 hp (34.3 kW)
    
  • Net: 42 hp (31.3 kW)
    
• Operating Weight: Approximately 7,895 lbs (3,582 kg)
  
• Dimensions:
  • Length: 13 ft 3 in (4.04 m)
    
  • Width: 5 ft 6 in (1.68 m)
    
  • Height: 6 ft 4 in (1.93 m)
    
• Hydraulic System:
  • Pump Flow Capacity: 14 gpm (53 lpm)
    
  • Relief Valve Pressure: 2,250 psi (155 bar)
    
  • Type: Open-center
    
• Transmission:
  • Type: Sliding gear
    
  • Forward Gears: 4
    
  • Reverse Gears: 1
    
• Fuel Capacity: 22 gal (83.3 L)
  
• Hydraulic Fluid Capacity: 6.4 gal (24.2 L)
  
• Final Drives Fluid Capacity: 10 gal (37.9 L)
  

Common Issues and Troubleshooting

1. Steering Clutch Problems:
   • Symptoms: Difficulty in turning or uneven steering response.
     
   • Potential Causes: Worn clutch plates, low hydraulic pressure, or contaminated hydraulic fluid.
     
   • Solutions:
     • Inspect and replace clutch plates if worn.
       
     • Check and adjust hydraulic pressure to manufacturer specifications.
       
     • Drain and replace contaminated hydraulic fluid.
       
2. Hydraulic System Failures:
   • Symptoms: Slow or unresponsive loader arms and bucket.
     
   • Potential Causes: Clogged hydraulic filters, air in the hydraulic lines, or failing hydraulic pump.
     
   • Solutions:
     • Replace clogged hydraulic filters.
       
     • Bleed the hydraulic system to remove air pockets.
       
     • Test and replace the hydraulic pump if necessary.
       
3. Engine Performance Issues:
   • Symptoms: Engine stalling, lack of power, or difficulty starting.
     
   • Potential Causes: Clogged fuel filters, faulty fuel injectors, or air intake restrictions.
     
   • Solutions:
     • Replace clogged fuel filters.
       
     • Inspect and clean fuel injectors.
       
     • Ensure the air intake system is clear of obstructions.
       

Maintenance Tips

• Regular Inspections: Conduct daily checks of fluid levels, tire pressure, and general machine condition.
  
• Scheduled Servicing: Follow the manufacturer's recommended service intervals for oil changes, filter replacements, and other routine maintenance.
  
• Proper Storage: Store the loader in a dry, sheltered location to protect it from environmental elements.
  
• Operator Training: Ensure that all operators are trained in the proper use and maintenance of the John Deere 350 to prevent misuse and extend the machine's lifespan.
  

Conclusion
The John Deere 350 Crawler Loader remains a reliable and efficient piece of equipment for various construction and agricultural tasks. By understanding its specifications, common issues, and maintenance requirements, operators can ensure optimal performance and longevity of the machine. Regular maintenance and prompt attention to any issues will help in achieving maximum productivity and minimizing downtime.