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John Deere 6140 Utility Tractor
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The John Deere 6140 is a robust and versatile utility tractor designed to meet the needs of farmers, contractors, and municipal operators. It belongs to the 6M series, offering a balance of power, fuel efficiency, and advanced technology that ensures productivity and comfort in diverse agricultural and land management tasks.
Engine and Powertrain
  • Powered by the John Deere PowerTech E 6.8-liter, 6-cylinder turbocharged diesel engine
  • Rated horsepower of 140 HP, with a maximum power output of approximately 160 HP via Intelligent Power Management (IPM)
  • Electronic management system optimizes engine performance, emissions control with a Lifetime Diesel Particulate Filter (DPF), Diesel Oxidation Catalyst (DOC), and Selective Catalytic Reduction (SCR) using Diesel Exhaust Fluid (DEF)
  • Maximum torque around 656 Nm available at 1600 rpm ensuring strong pulling and lifting capabilities
  • Transmission options include John Deere’s 24-speed PowrQuad™ Plus, AutoQuad™ Plus, CommandQuad™ Plus, or the fully variable AutoPowr™/IVT™ for smooth and efficient operation
Hydraulic and PTO Systems
  • Pressure-compensated hydraulic system with optional load sensing and pressure-and-flow compensating enhancements
  • Pump outputs range from 80 to 114 liters per minute (21 to 30 gallons per minute) depending on configuration
  • Up to three selective control valves (SCVs) provide flexibility for operating multiple hydraulic implements simultaneously
  • Rear power take-off (PTO) is electrohydraulically controlled with an oil-cooled multi-disc design supporting standard speeds of 540 and 1000 RPM
  • Front hitch with a lifting capacity of up to 4,400 kg (9,700 lbs) and front PTO options expand implement choices
Operating Capacity and Dimensions
  • Maximum permissible operating weight is around 10,450 kg (23,038 lbs)
  • Wheelbase measures approximately 2.58 meters (101.6 inches), providing stable, balanced handling
  • Overall length close to 4.5 meters (176.6 inches) and width around 2.5 meters (98 inches)
  • Ground clearance near 490 mm (19.3 inches), providing capability in rough terrain
Operator Comfort and Features
  • Spacious cab with options for mechanical or air suspension seats; available with climate control and wide glass for outstanding visibility
  • Advanced cornerpost display provides real-time performance monitoring, customizable settings, and diagnostic information
  • Controls include electronic left-hand reverser and multiple driving aids to reduce operator fatigue and maximize precision
Technical Terms
  • Intelligent Power Management (IPM): A software-controlled system that temporarily boosts engine power for demanding loads.
  • Selective Control Valve (SCV): Hydraulic valves that allow independent operation of attachments.
  • PowrQuad™ Plus / AutoQuad™ Plus: John Deere’s advanced synchronized transmission systems for seamless shifting.
  • Diesel Particulate Filter (DPF), Diesel Oxidation Catalyst (DOC), SCR: Exhaust treatment technologies reducing emissions.
  • Electrohydraulic PTO: PTO engagement controlled electronically with hydraulic actuation for smooth operation.
Operational Insight
A commercial landscaper using the 6140 praised the tractor’s power and hydraulic capacity for efficiently handling loaders and mowers. The intuitive electronic controls and available AutoPowr™ transmission simplified steering in tight spaces and allowed precise speed control during PTO operations. The tractor’s emission compliance and fuel efficiency also contributed to lower operating costs over the long term.
Maintenance Recommendations
  • Regularly service diesel exhaust fluid (DEF) system to maintain emission performance.
  • Follow recommended intervals for engine coolant, hydraulic, and transmission fluid changes.
  • Keep hydraulic system free of contaminants to extend component life.
  • Use genuine John Deere parts for filters, fluids, and wear components.
  • Keep cab clean and regularly calibrate digital controls for best performance.
Summary
The John Deere 6140 is a mid-sized utility tractor that effectively blends power, advanced technology, and operator-centered design. Its strong engine, versatile transmission options, and robust hydraulic systems provide the performance needed for demanding agricultural and commercial tasks. With modern emissions compliance and ergonomic features, the 6140 remains a favored choice for users seeking efficiency, comfort, and reliability in a compact package.
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