Target Audience:
Farm operators and agricultural contractors needing high-horsepower tractors for heavy fieldwork
Advantage:
Reliable and durable design, turbocharged power, comfortable cab, and advanced PowerShift transmission
Engine:
Powerful turbocharged diesel engines
Transmission:
John Deere PowerShift transmission
Cab:
Spacious cab for operator comfort and productivity
Engine:
Complete overhaul, diagnostics, and repair
Transmission:
PowerShift and manual transmission service
Hydraulic System:
Pump, valves, cylinders, and steering
Electrical System:
Wiring diagrams, troubleshooting, and component testing
Chassis:
Frame, axles, and suspension
Power Take-Off (PTO):
Service and adjustment
Brakes:
Service and adjustment
Steering:
Power steering system
Cab and HVAC:
Air conditioning and heating
Fuel System:
Fuel injection and governor
Cooling System:
Radiator, thermostat, and water pump
Exhaust System:
Exhaust manifold and turbocharger
Wheels and Tires:
Wheel mounting and tire pressures
Maintenance:
Routine service procedures with schedules
Disassembly and Assembly:
Step-by-step instructions
Repair:
Component rebuild and replacement
Diagnostic Flowcharts:
To aid in troubleshooting
Torque Specifications:
Provided for all critical fasteners
Level of Detail:
Comprehensive, intended for mechanics and technicians
Part Numbers:
Referenced for many components
Exploded Views:
Illustrations to aid in parts identification
โ๏ธ Engine Specifications
Model:
Turbocharged diesel engine
Displacement:
Approximately 466 cu in (7.6 L)
Power Output:
120 - 130 horsepower (depending on model and configuration)
Fuel System:
Direct injection
Engine Options Range:
No alternate engines offered; turbocharged diesel only
Torque:
High torque rise for lugging ability
Type:
John Deere PowerShift
Speeds:
8-speed (on 4640) / 8-speed (on 4840)
Clutch:
Power-shift, no clutch pedal required for shifting
Available:
Manual transmission with 16 speeds (possibly)
Shifting:
Full power-shift under load
Range:
High and low ranges available on some models
Wheelbase:
Approximately 105.5 inches (2,680 mm)
Length:
Approximately 169.7 inches (4,310 mm)
Curb Weight:
Approximately 14,300 to 15,600 lbs (6,490 to 7,080 kg)
Oil Change:
Every 100 hours or annually
Oil Filter:
Replace with oil change
Fuel Filter:
Every 250 hours
Hydraulic Oil:
Every 500 hours
Coolant:
Every 2 years or 1,000 hours
Transmission Oil:
Check daily; change per service schedule
Engine Oil:
API CE or higher
Oil Viscosity:
15W-40 (typical)
Hydraulic Fluid:
John Deere Hy-Gard
Coolant:
Ethylene glycol based
Known Issues / Common Wear Items
Engine:
Injection pump wear, turbocharger issues
Transmission:
Shift solenoids and seals
Hydraulics:
Leaking O-rings and hoses
Electrical:
Wiring harness chafing, switch failure
Undercarriage:
Tie rod ends, steering components
