Diesel 12-speed 4WD October 22 - 29, 1979 Link: Nebraska Tractor Test 1330 file PTO performance Drawbar performance Gear 8 used for power test Gear 1I used for pull test
hydraulic, front, rear or four-wheel crab steering
Brakes
hydraulic dry disc
Cab
Silent Guardian cab standard with air-conditioning
Transmission
12-speed
HYDRAULICS
Type
closed center PFC
Pressure
2250psi / 155.1bar
Valves
2 to 4
Pump flow
24gpm / 90.8lpm
Total flow
31gpm / 117.3lpm
TRACTOR HITCH
Rear Type
III
Rear lift (at 24
12,750lbs / 5783kg
POWER TAKE-OFF (PTO)
Rear PTO
independent
Rear RPM
1000
J.I. CASE 4890 TIRES
Ag front
20.8-34
Ag rear
20.8-34/23.1-30/24.5-32/30.5-32
DIMENSIONS
Wheelbase
110inches / 279cm
Length
243inches / 617cm
Width
99inches / 251cm
Operating weight
25,750lbs / 11680kg
Ballasted weight
28,460lbs / 12909kg
Ground clearance
18inches / 45cm
Front tread
74 to 94inches / 187to 238cm
Rear tread
74 to 94inches / 187to 238cm
DIMENSIONS & TIRES
Wheelbase
110inches / 279cm
Weight
25,750lbs / 11680kg
Front tire
18.4-34
Rear tire
18.4-34
ELECTRICAL
Ground
negative
Charging system
alternator
Charging amps
72
Battery volts
12
About Case Tractor
The Case 4890 tractor is part of the 9R tractor series. The 4890 is a Four-wheel Drive 4WD Tractors type, that is used mostly in the Agriculture Tractors. The 4890 tractor has a engine. This setting is more practical in the real world.