John Deere 770: all source data
All 92 values recorded for this model, as the source lists them and in its units. The spec sheet shows the same data checked, typed and converted.
Overview
Production| Distributor | John Deere |
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| Manufacturer | Yanmar |
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| (no label) | Compact Utility tractor |
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| (no label) | Built in Japan |
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| (no label) | Original price was $13,000 in 1998 |
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Engine| (no label) | Yanmar 1.4L 3-cyl diesel |
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Transmission| (no label) | 8-speed unsynchronized gear |
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Power| Engine (net) | 23 hp | 17.2 kW |
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| PTO (claimed) | 20 hp | 14.9 kW |
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Mechanical| (no label) | Two- or four-wheel drive |
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| Final drives | spur gear |
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| Differential lock | mechanical rear |
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| Steering | manual |
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| Steering | power |
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| (no label) | Dry shoe brakes |
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| (no label) | Two-post ROPS. |
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Capacity| Fuel | 6.3 gal | 23.8 L |
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| Hydraulic system | 4 gal | 15.1 L |
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| Front axle | 3.2 qts | 3.0 L |
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Hydraulics| Type | open center |
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| Capacity | 4 gal | 15.1 L |
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| Pressure | 2050 psi | 141.3 bar |
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| Rear valves | 2 |
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| Mid valves | 2 |
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| Pump flow | 5.6 gpm | 21.2 lpm |
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| Total flow | 5.6 gpm (manual steering) | 21.2 lpm |
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| Total flow | 9.9 gpm (power steering) | 37.5 lpm |
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| Steering flow | 4.3 gpm | 16.3 lpm |
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Hitch| Rear Type | I |
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| Control | position control |
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| Rear lift (at 24"/610mm) | 815 lbs | 369 kg |
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Pto| Rear PTO | transmission |
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| Rear PTO | live |
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| Rear PTO Type | 540 |
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| Engine RPM | 540@2600 |
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| Mid PTO | live |
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| Mid PTO Type | 2100 |
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| Engine RPM | 2100@2600 |
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Dimensions| Wheelbase | 61 inches | 154 cm |
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| Weight | 1930 to 2105 pounds |
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| Front tire | 4.00-15 |
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| 2WD Rear tire (2WD) | 9.5-24 |
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Serial location| (no label) | Serial number plate above the PTO shaft on the John Deere 770. |
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Electrical| Ground | negative |
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| Charging system | alternator |
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| Charging amps | 20 |
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| Battery CCA | 447 |
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| Battery volts | 12 |
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Engine
Engine detail| (no label) | Yanmar 3TN82-RJX |
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| (no label) | diesel |
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| (no label) | 3-cylinder |
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| (no label) | liquid-cooled |
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| Displacement | 83.1 ci | 1.4 L |
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| Bore/Stroke | 3.22x3.39 inches | 82 x 86 mm |
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| Power (net) | 23 hp | 17.2 kW |
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| Fuel system | direct injection |
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| Air cleaner | dry element |
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| Pre-heating | air intake heater |
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| Compression | 18.1:1 |
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| Rated RPM | 2600 |
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| Idle RPM | 800-2800 |
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| Starter volts | 12 |
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| Oil capacity | 4.2 qts | 4.0 L |
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| Coolant capacity (Coolant) | 5.1 qts | 4.8 L |
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Transmission
Transmission| Type | unsynchronized gear |
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| Gears | 8 forward and 2 reverse |
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| Clutch | 215mm dry disc |
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| Oil capacity | 16 qts | 15.1 L |
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| (no label) | Four gears, plus reverse, in two ranges. |
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Dimensions
Tires| 2WD Standard tires (ag) (2WD) | Front: 4.00-15. Rear: 9.5-24 |
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| 4WD Standard tires (ag) (4WD) | Front: 6.00-12. Rear: 12.4-16 |
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| 2WD Optional tires (ag) (2WD) | Front: 5.00-12. Rear: 12.4-16 |
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| 2WD Optional tires (ag) (2WD) | Front: 6.50-10. Rear: 12.4-16 |
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| Lawn/turf front | 25x8.50-14 |
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| Lawn/turf rear | 13.6-16 |
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Dimensions| Wheelbase | 61 inches | 154 cm |
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| Length | 111 inches | 281 cm |
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| 2WD Width (2WD) | 49.3 inches | 125 cm |
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| 4WD Width (4WD) | 52.5 inches | 133 cm |
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| 2WD Weight (2WD) | 1930 lbs | 875 kg |
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| 4WD Weight (4WD) | 2105 lbs | 954 kg |
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| 2WD Clearance (drawbar) | 13.8 inches | 35 cm |
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| 4WD Clearance (drawbar) | 12 inches | 30 cm |
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| 2WD Front tread | 38.1 inches | 96 cm |
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| 4WD Front tread | 37.2 inches | 94 cm |
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| Rear tread | 40 inches | 101 cm |
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Height| 2WD Hood (2WD) | 58.5 inches | 148 cm |
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| 4WD Hood (4WD) | 48.6 inches | 123 cm |
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| 2WD ROPS (2WD) | 80.8 inches | 205 cm |
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| 4WD ROPS (4WD) | 79 inches | 200 cm |
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| 2WD Exhaust (2WD) | 74.1 inches | 188 cm |
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| 4WD Exhaust (4WD) | 75.6 inches | 192 cm |
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