Full Specifications
JOHN DEERE 1840 POWER
Engine (net)
70hp / 52.2kW
PTO (claimed)
60hp / 44.7kW
ENGINE DETAIL
Description
John Deere diesel 4-cylinder liquid-cooled
Displacement
239ci / 3.9L
Bore/Stroke
4.19x4.33inches / 106x 110mm
Compression
16.8:1
Rated RPM
2500
Idle RPM
800-2660
Operating RPM
1300-2500
Torque
170lb-ft / 230.5Nm
Torque RPM
1300
Firing order
1-3-4-2
Starter volts
12
Intake valve clearance
0.014inches / 0.356mm
Exhaust valve clearance
0.018inches / 0.457mm
JOHN DEERE 1840 ENGINE
Description
John Deere 3.9L 4-cyl diesel
Fuel tank
25.1gal / 95.0L
TRANSMISSIONS OVERVIEW
Description
8-speed unsynchronized gear 8-speed partially synchronized 16-speed two-speed power shift
TRANSMISSION 1
Type
unsynchronized gear
Gears
8 forward and 4 reverse
Clutch
dry disc
Description
Four gears in two ranges, plus reverse range
SPEEDS
Description
With 15.5-38 rear tires
TRANSMISSION 2
Transmission
Top-Shaft Synchronized
Type
partially synchronized
Gears
8 forward and 4 reverse
Description
Four synchronized gears in two ranges, plus reverse range
TRANSMISSION 3
Transmission
Hi-Lo
Type
two-speed power shift
Gears
16 forward and 8 reverse
MECHANICAL
Chassis
4x2 2WD/4x4 MFWD 4WD
Final drives
planetary
Differential lock
mechanical rear
Steering
power
Brakes
wet disc
Cab
Open operator station. Cab optional
Transmissions
8-speed unsynchronized gear 8-speed partially synchronized 16-speed two-speed power shift
HYDRAULICS
Type
closed center
TRACTOR HITCH
Rear Type
II/I
Control
position and draft control
POWER TAKE-OFF (PTO)
Rear PTO
independent
Rear RPM
540 (1.375) / 540/1000 (1.375)
JOHN DEERE 1840 TIRES
Ag front
7.50-16
Ag rear
16.9-30
DIMENSIONS
Wheelbase
89.7inches / 227cm
Length
147inches / 373cm
Height (hood)
62inches / 157cm
Weight
5476lbs / 2483kg
DIMENSIONS & TIRES
Wheelbase
89.7inches / 227cm
Weight
5476lbs / 2483kg
Front tire
7.50-16
Rear tire
15.5-38
ELECTRICAL
Ground
negative
Charging system
alternator
Charging amps
33/55*Standard with cab, optional on open station
Charging volts
14
Batteries
2
Battery volts
12
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