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John Deere 990 Specs

VIEW 990 ATTACHMENTS

JD 990 Engine Specifications

Engine Model - 4TNV84
Engine Type - Diesel
Gross Horsepower - 40 (29.8 kW)
PTO Horsepower (Net) - 35 (26.4 kW)
Rated Speed - 2,700 rpm
Operating Range - 1,000–2,920 rpm
No. of Cylinders - 4
Displacement - 121.7 (2.0)
Bore and Stroke - 3.31 x 3.54 in. (84 x 90 mm)
Compression Ratio - 18:01
Lubrication - Pressurized
Cooling System - Water pump
Air Cleaner - Dry w/safety element
Engine Shutoff - Key switch
Engine Model - 4TNV84
Injection Type - Direct injection
Pump Type - In-line w/electric shutoff
75% Load (Mowing) - 1.368 gal/hr (6.4 L/hr)
Fuel - No. 1 Diesel, No. 2 Diesel, B5 Biodiesel
Electrical System Type - 12-volt
Battery Size (at - 18C) - 650 cca
Alternator - 20-amp

Power Take-Off

Type - Continuous live
Rear PTO Speed (Rated Engine rpm) - 540 rpm
PTO (claimed) - 35 hp (26.1 kW)

John Deere 990 Transmission

Transmission (2WD/MFWD) - Collar shift
Transmission Type - Partially synchronized
Clutch - Dual-stage, dry
Number of Speeds - 9 forward and 3 reverse
Final Drive - Planetary

Mechanical

Chassis - 4x2 2WD / 4x4 MFWD 4WD
Steering - Hydrostatic
Brakes - Wet disc
Cab - Two-post ROPS

JD 990 Hydraulics and Hitch

Type of Hydraulic System - Open Center
Working Pressure - 2,262 psi
Pump (Type) - Dual gear pumps
Implement Pump Capacity - 8.5 gpm (32.2 L/min)
Steering Pump Capacity - 4.5 gpm (17.0 L/min)
Maximum Total Flow - 13 gpm (49.2 L/min)
3-Point Hitch - Category 1, Std
Hitch Lift Capacity @ 24 in. Behind Link Ends - 2,020 lb. (916 kg)
Lift-Control Type - Position
Drawbar capacity - 825 lb (374 kg)

Capacities

Fuel Tank - 8.5 gal. (32 L)
Cooling System - 6.12 qt. (5.3 L)
Crankcase (w/fi lter) - 5.6 qt. (5.3 L)
Transmission and Hydraulic System - 5.5 gal. (2.1 L)

JD 990 Treads and Tires

Front Tires (2WD Standard) - 6.5-16
Rear Tires (2WD Standard) - 14.9-24
Front Tires (4WD Standard) - 8-16
Rear Tires (4WD Standard) - 14.9-24
Front tread - 48.2 in. (122 cm)
Rear tread - 46.2 in. (117 cm)

John Deere 990 Dimensions

Wheelbase - 68.9 in. (175 cm)
Overall Length - 123 in. (312 cm)
Height (hood) - 54 in. (137 cm)
Height (ROPS) - 84.2 in. (213 cm)
Front axle load - 5513 lb (2500 kg)
Rear axle load - 5292 lb (2400 kg)
Weight 2WD (Field Ready w/R1 Tires) - 2954 lb. (1340 kg)
Weight MFWD (Field Ready w/R1 Tires) - 3175 lb. (1440 kg)

John Deere 990 Attachments

Backhoe - 8B Backhoe
Loaders - 300CX, 300X
Mower - 261 (60-in.) and 272 (72-in.) Side Discharge Grooming Mowers
Rotary Cutters - 4, 5, 6-ft., MX5, MX6
Rotary Tillers - 655 (55-in.) and 665 (65-in.)
Flail Mower - 25-A Flail Mower

see other models

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JD INSTRUCTIONS

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LA110 Automatic

LA120 Automatic

LA150 Automatic

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LT160 Automatic

LT180 Automatic

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