John Deere 770
| | 1989 - 1998 |
| 70 Compact Series | | Compact Utility tractor | | Yanmar built |
|
Series map:
670
770
870
19.3hp
23.0hp
28.0hp
| Production |
| Distributor | John Deere
|
| Manufacturer | Yanmar
|
| Compact Utility tractor |
| Built in Japan |
| Original price was $13,000 in 1998 |
| John Deere 770 Power |
| Engine (net) | 23 hp
17.2 kW
|
| PTO (claimed) | 20 hp
14.9 kW
|
| Mechanical |
| Two- or four-wheel drive |
| Final drives | spur gear
|
| Differential lock | mechanical rear
|
| Steering | manual
|
| Steering | power OptOptional
|
| Dry shoe brakes |
| Two-post ROPS. |
| 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 OptOptional
|
| Mid valves | 2 OptOptional
|
| Pump flow | 5.6 gpm
21.2 lpm
|
| Total flow | 5.6 gpm (manual steering)
21.2 lpm
|
| | 9.9 gpm (power steering)
37.5 lpm
|
| 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 OptOptional
|
| Rear RPM | 540
|
| Engine RPM | 540@2600
|
| Mid PTO | live OptOptional
|
| Mid RPM | 2100
|
| Engine RPM | 2100@2600
|
| 770 Serial Location |
 |
| Serial number plate above the PTO shaft on the John Deere 770. |
| Electrical |
| Ground | negative
|
| Charging system | alternator
|
| Charging amps | 20
|
| Battery CCA | 447
|
| Battery volts | 12
|
| References |
 |
| Grounds Care & Recreation Products Sales Manual published in 1989, by John Deere |
| Lawn & Grounds Care Sales Manual published in 1997, by John Deere |
| Operator's Manual 670 and 770 Tractors (OM-M79606) published in 1988 |
| Compact Tractors Under 40 Horsepower published in 1991, by John Deere |
| Compact Utility Tractors published in 1993, by John Deere |
| John Deere Compact Utility Tractors published in 1995 |
| Compact Utility Tractors Product Information Handbook published in 1991, by John Deere |
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