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John Deere 4955 Specifications
The John Deere 4955 is a 2WD or 4WD row-crop tractor. This model was manufactured from 1988 to 1992. The John Deere 4955 tractor is powered by 466 cu.in (7.6 L) John Deere 6466T six-cylinder direct injection turbocharged intercooled diesel engine with a rated power of 228 hp (170 kW). The John Deere 4955 is fitted with a two transmission options: Power Shift transmission with 15 forward and 4 reverse gears, or Quad Range transmission with 16 forward and 6 reverse gears. The maximum travel speed (forward/reverse): 19.6 mph (31.5 km/h) and 12.6 mph (20.3 km/h).
The closed center hydraulic system has a piston pump with a rated capacity of 29.5 gpm (111.5 lpm). The hydraulic system pressure is 174.5 bar (2530 psi). The tractor is equipped with a power steering system, differential hydraulic wet disc brakes, 11.0x16 front tires, and 20.8x38 or 20.8R42 (Duals) rear tires. The tractor is compatible with John Deere 280 front-end loader with a lift capacity to full height of 4580 lbs (2077 kg) and breakout force of 6220 (2821 kg).
| Engine Specs |
Engine Model ................... John Deere 6466T
Engine Type ................... Six-cylinder turbocharged intercooled diesel
Number of Cylinders ................... 6
Displacement, cu.in (L) ................... 466 (7.64)
Cylinder Bore, in (mm) ................... 4.56 (116.0)
Piston Stroke, in (mm) ................... 4.75 (121.0)
Aspiration Type ................... Turbocharged
Rated Engine Power, hp (kW) ................... 228.0 (170.0)
Rated Engine Speed, rpm ................... 2000
Idle Speed, rpm ................... 800-2400
Maximum Torque, Nm (lb-ft) ................... 1010 (747.4)
Torque Speed, rpm ................... 1210
Compression Ratio ................... 16:1
Firing Order ................... 1-5-3-6-2-4
Fuel System ................... Direct injection
Lubrication System ................... Pressure
Cooling System ................... Liquid-cooled
Air Cleaner Type ................... Dual dry element
Intake Valve Clearance, in (mm) ................... 0.015 (0.38)
Exhaust Valve Clearance, in (mm) ................... 0.020 (0.51)
Fuel Tank Capacity, gal (L) ................... 102.0 (386.1)
Oil Capacity, qts (L) ................... 22.0 (20.9)
Coolant Capacity, qts (L) ................... 32.0 (30.4)
Electrical System Rating, Volts ................... 12
Charging System ................... Alternator
Alternator Rating, Amps ................... 120
| Power Take-Off |
PTO Operational Type ................... Independent
PTO Power, hp (kW) ................... 200.0 (149.0)
PTO Clutch Type ................... Hydraulic disc
PTO Speed, rpm ................... 1000
PTO/Engine Speed, rpm ................... 1000/2200
| Standard Transmission |
Transmission Model ................... Power Shift
Transmission Type ................... Full powershift
Gearbox Type ................... 15F/4R
Number of Forward Gears ................... 15
Number of Reverse Gears ................... 4
Clutch Type ................... Wet disc
Maximum Forward Speed, mph (kph) ................... 19.3 (31.0)
Maximum Reverse Speed, mph (kph) ................... 6.4 (10.3)
| Optional Transmission |
Transmission Model ................... Quad Range
Transmission Type ................... Partial powershift
Gearbox Type ................... 16F/6R
Number of Forward Gears ................... 16
Number of Reverse Gears ................... 6
Clutch Type ................... Wet disc
Maximum Forward Speed, mph (kph) ................... 19.6 (31.5)
Maximum Reverse Speed, mph (kph) ................... 12.6 (20.3)
| Wheels and Tires |
Wheel Drive System ................... 2WD/4WD
Steering Configuration ................... Front steer
Steering System ................... Power Steering
Brakes Type ................... Differential hydraulic wet disc
Front Tire Size (2WD) ................... 11.00x16
Rear Tire Size (2WD) ................... 20.8x38
Front Tire Size (4WD) ................... 18.4x26
Rear Tire Size (4WD) ................... 18.4x42
| Hydraulic System and Hitch |
Hydraulic System Type ................... Closed center
Implement Pump Flow, gpm (Lpm) ................... 29.5 (111.5)
Selective Control Valve Flow, gpm (Lpm) ................... 20.6 (78.0)
Hydraulic Pressure, Bar (psi) ................... 174.5 (2530)
Hydraulic Capacity (PowerShift, 2WD), gal (L) ................... 18.5 (70.0)
Hydraulic Capacity (PowerShift, 4WD), gal (L) ................... 20.0 (75.7)
Hydraulic Capacity (Quad Range), gal (L) ................... 27.0 (102.0)
Number of Standard Remote Valves ................... 2/3
Three-Point Hitch Category ................... 3
Standard Lift Capacity at lift pin, lbs (kg) ................... 7485 (3395)
Optional Lift Capacity at lift pin, lbs (kg) ................... 8275 (3750)
Upper Link Pin Diameter, in (mm) ................... 31.75 (1.25)
Upper Link Hole Diameter, in (mm) ................... 32.00 (1.26)
Lower Link Pin Diameter, in (mm) ................... 36.58 (1.44)
Lower Link Hole Diameter, in (mm) ................... 37.34 (1.47)
Lower Hitch Point Span, in (mm) ................... 965 (38.0)
Pin Centerline (Lower to Upper), in (mm) ................... 685 (27.0)
| Dimensions and Weight |
Wheelbase (2WD), in (mm) ................... 118.5 (3000)
Wheelbase (4WD), in (mm) ................... 117.1 (2970)
Overall Length, in (mm) ................... 177 (4490)
Height (Cab), in (mm) ................... 118.8 (3010)
Overall Width, in (mm) ................... 118 (2990)
Ground Clearance, in (mm) ................... 14.9 (370)
Turning Radius, in (mm) ................... 213 (5400)
Operating Weight, lbs (kg) ................... 18370 (8330)
Ballasted Weight, lbs (kg) ................... 24665 (11190)
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