John Deere
John Deere 770
The John Deere 770 is a compact utility tractor built by Yanmar in Japan from 1989 to 1998. It is part of the 70 Compact Series and features a Yanmar 1.4L 3-cylinder diesel engine producing 23 hp (17.2 kW) net power. The tractor has an 8-speed unsynchronized gear transmission with 2 reverse gears and a 215mm dry disc clutch. It offers two- or four-wheel drive options with mechanical rear differential lock and manual or optional power steering. The hydraulic system is open center with 4 gal (15.1 L) capacity and optional rear and mid valves. The tractor has a rear PTO with 540 rpm and optional live PTO, and a mid PTO with 2100 rpm. Dimensions include a 61 inch (154 cm) wheelbase, 111 inch (281 cm) length, and weights ranging from 1930 to 2105 lbs depending on drive configuration. Attachments include a 60" mid-mount mower deck, front blade, front-end loader, and backhoe. The 770 was originally priced at $13,000 in 1998.
Power23 hp
Founded1989 - 1998
Model770
Technical Specifications
Detailed specifications and technical data for John Deere 770
Power
| Engine (net) | 23 hp (17.2 kW) |
|---|---|
| PTO (claimed) | 20 hp (14.9 kW) |
Tires
| Lawn/turf rear | 13.6-16 |
|---|---|
| Lawn/turf front | 25x8.50-14 |
| 2WD Optional tires (ag) | Front: 5.00-12. Rear: 12.4-16 |
| 2WD Standard tires (ag) | Front: 4.00-15. Rear: 9.5-24 |
| 4WD Standard tires (ag) | Front: 6.00-12. Rear: 12.4-16 |
| 2WD Optional tires (ag) 2 | Front: 6.50-10. Rear: 12.4-16 |
Engine
| Model | Yanmar 1.4L 3-cyl diesel |
|---|
Height
| 2WD Hood | 58.5 inches (148 cm) |
|---|---|
| 2WD ROPS | 80.8 inches (205 cm) |
| 4WD Hood | 48.6 inches (123 cm) |
| 4WD ROPS | 79 inches (200 cm) |
| 2WD Exhaust | 74.1 inches (188 cm) |
| 4WD Exhaust | 75.6 inches (192 cm) |
Capacity
| Fuel | 6.3 gal (23.8 L) |
|---|---|
| Front axle | 3.2 qts (3.0 L) |
| Hydraulic system | 4 gal (15.1 L) |
Dimensions
| Length | 111 inches (281 cm) |
|---|---|
| 2WD Width | 49.3 inches (125 cm) Minimum width |
| 4WD Width | 52.5 inches (133 cm) Minimum width |
| Wheelbase | 61 inches (154 cm) |
| 2WD Weight | 1930 lbs (875 kg) |
| 4WD Weight | 2105 lbs (954 kg) |
| Rear tread | 40 inches (101 cm) |
| 2WD Front tread | 38.1 inches (96 cm) |
| 4WD Front tread | 37.2 inches (94 cm) |
| 2WD Clearance (drawbar) | 13.8 inches (35 cm) |
| 4WD Clearance (drawbar) | 12 inches (30 cm) |
Electrical
| Ground | negative |
|---|---|
| Battery CCA | 447 |
| Battery volts | 12 |
| Charging amps | 20 |
| Charging system | alternator |
Hydraulics
| Type | open center |
|---|---|
| Capacity | 4 gal (15.1 L) |
| Pressure | 2050 psi (141.3 bar) |
| Pump flow | 5.6 gpm (21.2 lpm) |
| Mid valves | 2 (Optional) |
| Total flow | 5.6 gpm (manual steering) (21.2 lpm), 9.9 gpm (power steering) (37.5 lpm) |
| Rear valves | 2 (Optional) |
| Steering flow | 4.3 gpm (16.3 lpm) |
Mechanical
| ROPS | Two-post ROPS |
|---|---|
| Drive | Two- or four-wheel drive |
| Brakes | Dry shoe brakes |
| Steering | manual, power (Optional) |
| Final drives | spur gear |
| Differential lock | mechanical rear |
Production
| Type | Compact Utility tractor |
|---|---|
| Built in | Japan |
| Distributor | John Deere |
| Manufacturer | Yanmar |
| Original price | $13,000 in 1998 |
| Production years | 1989 - 1998 |
Attachments
| Overview | 60" mid-mount mower deck, Blade, Front-end loader, Backhoe |
|---|---|
| 54" Blade | Cut5.25 inches (13 cm) Lift12.25 inches (31 cm) ModelJohn Deere 380A Mountfront-mount Width54 inches (137 cm) Height18 inches (45 cm) Weight460 lbs (208 kg) Featureshydraulic-lift, hydraulic-angle |
| 70 Loader | Dump angle45° Bucket widths48 inches (121 cm), 54 inches (137 cm), 60 inches (152 cm) Breakout force1300 lbs (589 kg) Reach (dumped)31 inches (78 cm) Reach (ground)46 inches (116 cm) Rollback angle22° Bucket breakout1570 lbs (712 kg) Height (at pin)77 inches (195 cm) Clearance (level)74 inches (187 cm) Clearance (dumped)62.5 inches (158 cm) Lift capacity (full at pin)700 lbs (317 kg) |
| 60" Mower deck | Typemid-mount John Deere 160 Blades3-blade Weight345 lbs (156 kg) Cut height1.0 to 8.75 inch (2 to 22 cm) Cutting width60 inches (152 cm) Overall width72.5 inches (184 cm) |
| John Deere 7 Backhoe | TypeJohn Deere 7 Backhoe Weight787 lbs (356 kg) Swing Arc180° Bucket force1095 lbs (496 kg) Bucket width9 inches (22 cm) Loading height70 inches (177 cm) Bucket Rotation180° Reach from pivot114 inches (289 cm) Transport height69 inches (175 cm) Dipperstick force1945 lbs (882 kg) Additional bucket widths13 inches (33 cm), 16 inches (40 cm), 19 inches (48 cm) 2-Foot flat digging depth90 inches (228 cm) |
Transmission
| Type | unsynchronized gear |
|---|---|
| Gears | 8 forward and 2 reverse |
| Clutch | 215mm dry disc |
| Description | Four gears, plus reverse, in two ranges. |
| Oil capacity | 16 qts (15.1 L) |
Tractor hitch
| Control | position control |
|---|---|
| Rear Type | I |
| Rear lift (at 24"/610mm) | 815 lbs (369 kg) |
Serial Numbers
| 1989 | 1001 |
|---|---|
| 1990 | 4111 |
| 1991 | 100001 |
| 1992 | 115001 |
| 1993 | 120001 |
| 1994 | 130001 |
| 1995 | 140001 |
| 1996 | 150001 |
| 1997 | 160001 |
| 1998 | 170001 |
Power Take-off (PTO)
| Mid PTO | live (Optional) |
|---|---|
| Rear PTO | transmission |
| Mid PTO Type | 2100 |
| Rear PTO Type | 540 |
| Rear PTO live | Optional |
| Mid PTO Engine RPM | 2100@2600 |
| Rear PTO Engine RPM | 540@2600 |
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