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Caterpillar 268B Skid Steer Loader Pilot Controls and Overview
#1
Machine Background
The Caterpillar 268B skid steer loader is a mid-sized, versatile machine designed to deliver reliable performance on various job sites. It is widely appreciated for sturdy construction, ease of operation, and efficient hydraulic power systems. The 268B provides a balance of power and maneuverability, ideal for general construction, landscaping, and material handling.
Engine and Powertrain
  • Powered by the Cat® 3044C DIT engine, a 3.3 L, 4-cylinder, turbocharged, electronically controlled diesel engine.
  • Gross power output is about 82 hp (61 kW) with net power around 76 hp (57 kW).
  • The engine is paired with a hydrostatic transmission providing a smooth, responsive travel speed of approximately 11.6 km/h (7.2 mph).
  • Optional 2-speed transmission available for enhanced productivity in specific applications.
Pilot Controls
  • The 268B features pilot-operated hydraulic controls for precision and ease of operation.
  • Right-hand joystick controls loader lift and tilt functions with minimal operator fatigue.
  • Left-hand joystick manages the hydrostatic transmission allowing effortless vehicle propulsion.
  • Low-effort joystick design enhances operator comfort and productivity by reducing physical strain.
  • The hydraulic system incorporates a variable displacement piston pump delivering 125 L/min (33 gal/min) at a maximum operating pressure of 28,000 kPa (4060 psi) for the high flow auxiliary circuit.
  • Auxiliary hydraulic circuit powers work tools such as breakers, grapples, and sweepers with consistent flow and pressure.
Operator Station
  • Ergonomic layout includes an adjustable contoured seat and cushioned armrest.
  • Control interlock system disables hydraulics and transmission when the operator leaves the seat or raises the armrest, ensuring safety.
  • Excellent visibility with clear line of sight to work tools and machine sides.
  • Safety features include ROPS (Roll Over Protective Structure) and FOPS (Falling Object Protective Structure).
Hydraulic and Auxiliary Systems
  • High-performance hydraulic pumps are engine-driven without belts, increasing reliability.
  • Variable displacement pumps ensure efficient power delivery and fuel savings.
  • Dual hydraulic circuits manage lifting, tilting, and auxiliary functions independently.
  • Standard hydraulic pressure is 23,000 kPa for lift and tilt; 28,000 kPa for high-flow auxiliary circuits.
Specifications
  • Operating weight roughly 3,626 kg (7,995 lbs).
  • Rated operating capacity of 1,225 kg (2,700 lbs) at 50% tipping load.
  • Lift arms designed with a straight load path and spherical bearings distribute stress evenly, enhancing durability.
  • Dimensions include width over tires approximately 6 ft and length with bucket near 11.87 ft.
Terminology
  • Pilot-Operated Controls: Hydraulic control method where small, low-pressure pilot lines control large hydraulic valves for precision and ease.
  • Hydrostatic Transmission: Type of transmission using hydraulic fluid for smooth power delivery and variable speed control.
  • Variable Displacement Pump: Hydraulic pump that adjusts fluid flow rate based on demand, improving fuel efficiency.
  • Control Interlock System: Safety system that disables operation when operator is not properly positioned.
  • Roll Over Protective Structure (ROPS): Safety cage to protect operator during rollovers.
  • Falling Object Protective Structure (FOPS): Framework designed to protect the operator from falling debris.
Real-World Application
In urban construction environments, the 268B has proven to be a reliable workhorse. Operators benefit from its pilot controls, which minimize fatigue during long shifts. The powerful hydraulic system supports a wide range of attachments making it an adaptable multifunction machine. Its robust frame and safety features allow confidence on congested sites and in demanding material handling scenarios.
Conclusion
The Caterpillar 268B skid steer loader combines robust engine performance with advanced pilot-operated hydraulics for efficient, comfortable, and safe operation. Its ergonomic design and versatile controls make it suitable for a broad range of tasks, from construction to landscaping. Proper operator training and routine maintenance ensure optimal productivity and machine longevity.
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