Tractor · 1976Unverified
John Deere 840
John Deere 840 — Utility tractor · 34 hp. Reference specifications; pending source verification.
Provisional listing — the headline figure is shown; full specifications are auto-generated and pending verification against published sources.
Rated power
34 hp
Weight
2269 kg
Hover a source tag to verify
Overview
ManufacturerJohn DeereReference
Utility tractorReference
Built in Mannheim, Baden-Württemberg, GermanyReference
Two-wheel driveReference
Final drivesplanetaryReference
Manual steeringReference
Hydraulic wet disc brakesReference
Four-post ROPS.Reference
Engine
John Deere 2.9L 3-cyl dieselReference
Engine28.0 kWReference
John DeereReference
dieselReference
3-cylinderReference
liquid-cooledReference
Displacement2.9 LReference
Bore/Stroke106 x 110 mmReference
Power28.0 kWReference
Fuel systemdirect injectionReference
Compression16.8:1Reference
Rated RPM2400Reference
Operating RPM1300-2400Reference
Starter volts12Reference
Starter power3.0 kWReference
Oil capacity7.0 LReference
Coolant capacity10.5 LReference
Transmission
8-speed collar shiftReference
16-speed two-speed power shiftReference
Typecollar shiftReference
Gears8 forward and 4 reverseReference
Clutchdry discReference
Typetwo-speed power shiftReference
Gears16 forward and 8 reverseReference
PTO & Hydraulics
PTO (claimed)25.0 kWReference
Hydraulic system40.9 LReference
Typeclosed centerReference
Capacity40.9 LReference
Pump flow23.1 lpmReference
Rear TypeII/IReference
Rear lift2212 kgReference
Rear PTOliveReference
Rear PTOindependentReference
Clutchdry discReference
Clutchwet discReference
Rear PTO Type540Reference
Engine RPM540@2400Reference
Front PTOoptionalReference
Front PTO Type1000Reference
Engine RPM1000@2070Reference
Capacities
Fuel78.0 LReference
Dimensions
Wheelbase188 cmReference
Weight2269 kgReference
Front tire6.50-16Reference
Rear tire12.4-32Reference
Ag front6.50-16Reference
Ag rear12.4-32Reference
Ag rear9.5-36Reference
Ag rear12.4-28Reference
Length350 cmReference
Width166 cmReference
Height (ROPS)239 cmReference
Height (exhaust)261 cmReference
Shipping weight2269 kgReference
Clearance (front axle)53 cmReference
Front tread125 to 201 cmReference
Rear tread135 to 185 cmReference
Electrical
GroundnegativeReference
Charging systemalternatorReference
Charging amps33Reference
Batteries2Reference
Battery volts12Reference
Values normalized to UK metric units. Every figure is traced to at least one source; verified specs are cross-checked against two or more.