Wikitractor

John Deere 1840

Production ended · 2WD or 4WD

PTO power · claimed

60 hp

Weight
5,476 lb
Engines
1 Diesel
Built
no record
Price new
no record

Power

Engine70 hp net
PTO60 hp claimed
Drawbarno record
Listed power70 hp engine basis

Engines

John Deere 3.9L 4-cyl dieselDiesel · 4 cyl239 ci
Engine details
John Deere 3.9L 4-cyl diesel
Bore × stroke
4.19 in × 4.33 in
Rated speed
2,500 rpm
Rated power
70 hp
Torque
170 lb·ft at 1,300 rpm
Compression
16.8:1
Cooling
liquid-cooled
Firing order
1-3-4-2

Transmissions

8-speed unsynchronized gearunsynchronized gear8F / 4R
Top-Shaft Synchronizedpartially synchronized8F / 4R
Hi-Lotwo-speed power shift16F / 8R
Transmission notes

8-speed unsynchronized gear: Four gears in two ranges, plus reverse range.

Top-Shaft Synchronized: Four synchronized gears in two ranges, plus reverse range.

Weight

Weight5,476 lb unspecified

Dimensions

Wheelbase89.7 in
Length147 in

Capacities

Fuel tank25.1 gal

Hydraulics

Systemclosed center
Pump flowno record

Hitch

Rear hitch categoryII/I
Controlposition and draft control
Rear lift capacityno record

PTO

Rear PTOindependent
Rear PTO speeds540 (1.375)

Chassis

Drive2WD/4WD
SteeringPower steering
BrakesWet disc brakes
Differential lockmechanical rear
Final drivesplanetary
CabOpen operator station. Cab optional

Tires

Front7.50-16
Rear15.5-38

Electrical

System voltage12 V
Batteries2
Chargingalternator
Charging output33 A
Groundnegative

Production

FactoriesMannheim, Baden-Württemberg, Germany
Built byJohn Deere

Literature

  • Operator's Manual 145 Loader (OMW21474)
  • Operator's Manual 1640, 1840 and 2040 Tractors John Deere
  • New Profiles of Performance John Deere, 1979

Attachments

  • front-end loader