Production | |
| Distributor: | John Deere |
| Manufacturer: | Yanmar |
| Type: | Compact Utility tractor |
| Factory: | Japan |
| Original price: | $13,000 (1998 ) |
John Deere 770 Power | |
| Engine (net): | 23 hp 17.2 kW |
| PTO (claimed): | 20 hp 14.9 kW |
Mechanical | |
| Chassis: | 4x2 2WD |
| 4x4 MFWD 4WD | |
| Final drives: | spur gear |
| Differential lock: | mechanical rear |
| Steering: | manual |
| Steering: | power*Optional |
| Brakes: | dry shoe |
| Cab: | Two-post ROPS. |
| Transmission: | 8-speed unsynchronized gear |
Capacity | |
| Fuel: | 6.3 gal 23.8 L |
| Hydraulic system: | 4 gal 15.1 L |
| Front axle: | 3.2 qts 3.0 L |
Hydraulics | |
| Type: | open center |
| Capacity: | 4 gal 15.1 L |
| Pressure: | 2050 psi 141.3 bar |
| Rear valves: | 2*Optional |
| Mid valves: | 2*Optional |
| Pump flow: | 5.6 gpm 21.2 lpm |
| Total flow: | 5.6 gpm 21.2 lpm (manual steering) |
| 9.9 gpm 37.5 lpm (power steering) | |
| Steering flow: | 4.3 gpm 16.3 lpm |
Tractor hitch | |
| Rear Type: | I |
| Control: | position control |
| Rear lift (at 24"/610mm): | 815 lbs 369 kg |
Power Take-off (PTO) | |
| Rear PTO: | transmission |
| live*Optional | |
| Rear RPM: | 540 |
| Engine RPM: | 540@2600 |
| Mid PTO: | live*Optional |
| Mid RPM: | 2100 |
| Engine RPM: | 2100@2600 |
770 Serial Numbers | |
| Location: | Serial number plate above the PTO shaft on the John Deere 770. |
| 1989: | 1001 |
| 1990: | 4111 |
| 1991: | 100001 |
| 1992: | 115001 |
| 1993: | 120001 |
| 1994: | 130001 |
| 1995: | 140001 |
| 1996: | 150001 |
| 1997: | 160001 |
| 1998: | 170001 |
Electrical | |
| Ground: | negative |
| Charging system: | alternator |
| Charging amps: | 20 |
| Battery CCA: | 447 |
| Battery volts: | 12 |
Engine Detail | |
| Yanmar 3TN82-RJX | |
| diesel | |
| 3-cylinder | |
| liquid-cooled | |
| Displacement: | 83.1 ci 1.4 L |
| Bore/Stroke: | 3.22x3.39 inches 82 x 86 mm |
| Fuel system: | direct injection |
| Air cleaner: | dry element |
| Pre-heating: | air intake heater |
| Compression: | 18.1:1 |
| Rated RPM: | 2600 |
| Idle RPM: | 800-2800 |
| Starter volts: | 12 |
| Oil capacity: | 4.2 qts 4.0 L |
| Coolant capacity: | 5.1 qts 4.8 L |
Transmission | |
| Type: | unsynchronized gear |
| Gears: | 8 forward and 2 reverse |
| Clutch: | 215mm dry disc |
| Oil capacity: | 16 qts 15.1 L |
| Four gears, plus reverse, in two ranges. | |
Dimensions | |
| Wheelbase: | 61 inches 154 cm |
| Length: | 111 inches 281 cm |
| 2WD Width: | 49.3 inches 125 cm *Minimum width. |
| 4WD Width: | 52.5 inches 133 cm *Minimum width. |
| 2WD Weight: | 1930 lbs 875 kg |
| 4WD Weight: | 2105 lbs 954 kg |
| 2WD Clearance (drawbar): | 13.8 inches 35 cm |
| 4WD Clearance (drawbar): | 12 inches 30 cm |
| 2WD Front tread: | 38.1 inches 96 cm |
| 4WD Front tread: | 37.2 inches 94 cm |
| Rear tread: | 40 inches 101 cm |