Caterpillar 215 Hydraulic Excavator Overview and Part Information

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Machine Overview
The Caterpillar 215 hydraulic excavator is a compact and versatile piece of heavy equipment designed for excavation, landscaping, and utility work. Powered by the reliable Cat 3304 diesel engine, it strikes a balance between power and maneuverability, making it suitable for medium-duty operations.
Specifications

• Operating Weight: Approximately 36,156 lbs (16,400 kg)
  
• Engine: Caterpillar 3304 diesel, 85 hp at 2000 rpm
  
• Hydraulic System:
  • Max Pressure: Around 4000 psi
    
  • Pump Flow: Approximately 84 gallons per minute
    
• Tank Capacities:
  • Fuel Tank: 55 gallons
    
  • Hydraulic Oil: About 42 gallons
    
  • Engine Oil: 5.3 gallons
    
• Dimensions:
  • Length: Approximate 29.8 ft (9.1 m)
    
  • Width: Approximate 8 ft (2.4 m)
    
  • Height: Approximate 9.96 ft (3.03 m)
    
• Max Digging Depth: Depends on boom and stick length, typically around 20 ft
  
• Bucket Capacities: Range varies with attachments, generally between 0.8 to 1.3 cubic yards
  

Historical Context
The Cat 215 was introduced during a period when Caterpillar expanded its excavator range through partnerships, such as with German firm EDER, which led to badge-engineered models designed to fill gaps between smaller and larger excavators. This expanded availability allowed Caterpillar to compete in various market segments globally.
Parts and Maintenance

• Hydraulic system components such as pumps, valves, cylinders, and hoses are crucial for performance and require regular inspection.
  
• The Cat 3304 engine is well-regarded for reliability, with parts like filters and seals available through OEM channels.
  
• Swing bearing specifications include precise tolerances for bearing clearance and torque values for bolt tightening.
  
• Regular maintenance of hydraulic fluids and engine oil, as well as inspection of the swing drive and linkage systems, ensures longevity.
  

Terminology

• Hydraulic Flow: The amount of hydraulic fluid the pump delivers, influencing machine speed and power.
  
• Swing Drive: The system enabling the upper structure to rotate smoothly, supported by bearings and gears.
  
• Operating Weight: The total weight of the machine, including fluids and standard attachments.
  
• Boom/Stick: The excavator’s arm sections that determine reach and digging depth.
  
• Bucket Capacity: The volume of material a bucket can hold, affecting productivity.
  

Real-World Usage
Operators laud the Caterpillar 215 for its stability and balanced power, particularly on projects requiring precise digging and maneuvering in confined spaces. The machine's axial piston pump delivers consistent flow, essential for smooth operation of the boom and attachments.
Conclusion
The Caterpillar 215 excavator is a rugged, reliable machine with solid hydraulics and powertrain components suitable for a variety of medium-duty tasks. Knowing specifications and maintaining essential parts like the hydraulic system and swing drive increases machine uptime and service life. Its historical evolution through partnerships laid groundwork for Caterpillar’s current excavator lineup, marking the 215 as a notable model in excavator history.