John Deere 990

Production: 2000 - 2007  

Production
Manufacturer:	John Deere
Type:	Compact Utility tractor

John Deere 990 Power
Engine (gross):	40.4 hp 30.1 kW
Engine (net):	38.5 hp 28.7 kW
PTO (claimed):	35 hp 26.1 kW

Mechanical
Chassis:	4x2 2WD
4x4 MFWD 4WD
Steering:	power
Brakes:	wet disc
Cab:	Two-post ROPS.
Transmission:	9-speed partially synchronized

Capacity
Fuel:	8.5 gal 32.2 L
Hydraulic system:	5.5 gal 20.8 L

Hydraulics
Type:	open center
Capacity:	5.5 gal 20.8 L
Pressure:	2262 psi 156.0 bar
Pump flow:	8.5 gpm 32.2 lpm
Total flow:	13 gpm 49.2 lpm
Steering flow:	4.5 gpm 17.0 lpm

Tractor hitch
Rear Type:	I
Rear lift (at 24"/610mm):	1,573 lbs 713 kg

Power Take-off (PTO)
Rear PTO:	live (two-stage clutch)
Rear RPM:	540

990 Serial Numbers
Location:	Serial number plate on the rear of the 990, below the PTO.
2000:	190001
2001:	290002
2002:	291001
2003:	391001
2004:	590001
2005:	690001
2006:	790001
2007:	890001

Electrical
Ground:	negative
Charging system:	alternator
Charging amps:	20
Battery CCA:	650
Battery volts:	12

Engine Detail
Yanmar 4TNE84
diesel
4-cylinder
liquid-cooled
Displacement:	121.7 ci 2.0 L
Bore/Stroke:	3.31x3.54 inches 84 x 90 mm
Power (gross):	40.4 hp 30.1 kW
Air cleaner:	dry
Compression:	18:1
Rated RPM:	2700
Idle RPM:	925-2875
Starter volts:	12
Starter power:	2.7 hp 2.0 kW
Oil capacity:	5.6 qts 5.3 L
Coolant capacity:	6.1 qts 5.8 L

Transmission
Transmission:	Collar Shift
Type:	partially synchronized
Gears:	9 forward and 3 reverse
Oil capacity:	22 qts 20.8 L
Three gears (1-3) plus reverse in three ranges (A-C). Gears may be shifting on the move by using the clutch. The tractor must be stopped to shift ranges.

Dimensions
Wheelbase:	68.9 inches 175 cm
Length:	123 inches 312 cm
Height (hood):	54 inches 137 cm
Height (ROPS):	84.2 inches 213 cm
2WD Front tread:	48.2 inches 122 cm
4WD Front tread:	53.6 inches 136 cm
Rear tread:	46.2 inches 117 cm