General informations and Service Manual
Make
John Deere
Model
4840
Company country
United states
Production years
From 1978 Until 1982
Tractor type
Row Crop tractor
Fuel
diesel
Price
-
Total build
-
Service repair manual John Deere 4840 Manual
Dimensions, weight and tires specs
AG front tires
10.00-16
AG rear tires
24.5-32
Weight
14,900 lbs or 6758 kg
Length
177 inches [449 cm]
Width
96 inches [243 cm]
Height
117 inches [297 cm]
Wheelbase
118.5 inches [300 cm]
Ground clearance
-
Turning radius
14.7 feet [4.5 m]
Rear tread size
60 to 131.5 inches
Front tread size
58 to 100 inches
Horsepower and engine specs
Engine size
466 ci or 7.6 L
Number of cylinders
6 cylinders
Horsepower
-
Power RPM
2200 (rpm)
Engine torque
-
Engine torque RPM
-
Fuel type
diesel
Fuel tank capacity
103 gal or 389.9 L
Compression ratio
15.5:1
Bore stroke
4.5625x4.75 inches or (116 x 121 mm)
Coolant tank capacity
40 qts or 37.9 L
Battery and electrical specs
Number of batteries
2
Battery voltage
6 V
Electric ground force
negative
Electric charging system
alternator
Engine starter volts
12 V
Parts And Accessories John Deere 4840 Parts
Clutch and transmission specs
Transmission system
John Deere PowerShift
Transmission type
full power shift
Transmission gears
8 forward and 4 reverse
Oil tank capacity
80 qts or 75.7 L
Mechanical and cab specs
Wheel drive
4x2 2WD
Steering system
power
Braking system
differential hydraulic wet disc
Cabin type
Sound-Gard cab
Differentiel lock
pedal-actuated hydraulic
Hydraulic specs
Hydraulic system
closed center
Number of valves
2 or 3
Pump flow rate
23 gpm or 87.1 lpm
Hydraulic tank capacity
16.5 gal or 62.5 L
Drawbar specs
Drawbar claimed power
157 hp or 117.1 kW
Drawbar real power
151.21 hp or 112.8 kW
Drawbar fuel consumption
11.3 gal/hour or 42.8 l/hour
Max drawbar pull
17,307 lbs or 7850 kg
Power take-off (PTO) specs
PTO claimed power
180 hp or 134.2 kW
PTO real power
181.63 hp or 135.4 kW
PTO clutch system
-
Rear PTO system
independent
Rear PTO RPM
1000 (rpm)
Front PTO system
-
PTO fuel consumption
11.5 gal/hour or 43.5 l/hour
3 point hitch specs
Hitch control system
-
Rear hitch
III,IIIN
Rear hitch lift
8,295 lbs or 3762 kg
Detailed review of John Deere 4840
John Deere produced its 4840 farm tractor model From 1978 Until 1982 in United states with a Sound-Gard cab cabin. service repair manual mechanical and electrical here
