John Deere

John Deere 2640

The John Deere 2640 is a utility tractor produced from 1976 to 1982 as part of the 2040 Series. It features a John Deere 4.5L 4-cylinder liquid-cooled diesel engine with 70 hp PTO power. The tractor offers multiple transmission options including an 8-speed collar shift, 16-speed two-speed power shift, and an 8-speed power shuttle. It is a two-wheel drive tractor built in Dubuque, Iowa, USA, with mechanical rear differential lock and power assist steering. The 2640 has a fuel capacity of 19.5 gallons and a hydraulic system capacity of 10 gallons with a closed center system. Dimensions include a wheelbase of 85.75 inches, length of 139.5 inches, and operating weight of 5800 lbs. It uses 6.00-16 front tires and 16.9-28 rear tires. Electrical system is 12 volts with negative ground and alternator charging. The tractor is known for its versatility and reliability in utility applications.

Power77 hp[P]

Founded1976 - 1982

Model2640

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Technical Specifications

Detailed specifications and technical data for John Deere 2640

Power

PTO (tested)	70.37 hp (52.5 kW)
PTO (claimed)	70 hp (52.2 kW)
Drawbar (tested)	57.88 hp (43.2 kW)

Tires

Ag rear	16.9-28
Ag front	6.00-16

Engine

Type	John Deere 4.5L 4-cyl diesel
Rated RPM	2500
Bore/Stroke	4.19x5.00 inches (106 x 127 mm)
Compression	16.7:1
Displacement	276 ci (4.5 L)
Firing order	1-3-4-2
Starter volts	12
Coolant capacity	12 qts (11.4 L)

Capacity

Fuel	19.5 gal (73.8 L)
Hydraulic system	10 gal (37.9 L)

Dimensions

Width	69.5 inches (176 cm)
Length	139.5 inches (354 cm)
Wheelbase	85.75 inches (217 cm) *Straight axle
Rear tread	52 to 97 inches (132 to 246 cm) (rack-and-pinion)
Front tread	60 to 88 inches (152 to 223 cm) (straight axle), 49 to 79 inches (124 to 200 cm) (swept axle)
Height (hood)	61.3 inches (155 cm)
Ballasted weight	8430 lbs (3823 kg)
Height (exhaust)	101.7 inches (258 cm)
Operating weight	5800 lbs (2630 kg)
Clearance (front axle)	25.6 inches (65 cm)

Electrical

Ground	negative
Battery volts	12
Charging system	alternator

Hydraulics

Type	closed center
Capacity	10 gal (37.9 L)
Pressure	2250 psi (155.1 bar)
Pump flow	9 gpm (34.1 lpm), 15 gpm (56.8 lpm)

Mechanical

Drive	Two-wheel drive
Brakes	Differential hydraulic wet disc brakes
Steering	mechanical with power assist
Final drives	planetary
Operator station	Open operator station
Differential lock	mechanical rear

Production

Type	Utility tractor
Series	2040 Series
Built in	Dubuque, Iowa, USA
Years produced	1976 - 1982

Transmission

8-speed collar shift	8 forward and 4 reverse; Four gears (1-4) in two ranges (I and II) plus reverse (R) range
Transmission options	8-speed collar shift, 16-speed two-speed power shift, 8-speed power shuttle
8-speed power shuttle	Direction Reverser type; 8 forward and reverse gears; Four gears (1-4) in two ranges (I and II) with a left-hand hydraulic shuttle lever
16-speed two-speed power shift	Hi-Lo type; 16 forward and 8 reverse gears; dry disc clutch

Tractor hitch

Rear Type	II/I

Serial Numbers

1976	235313
1977	258106
1978	280789
1979	305505
1980	341000
1981	362175
1982	376744
Serial number location	Serial number plate on the right side of the 2640 frame above the front axle.