Specifications
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| Model information | |
| Production years | 1978 - 1989 |
| Series | 50 Compact Series |
| Equipment type | Compact Utility tractor |
| Manufacturer | Yanmar built |
| Production | |
| Distributor | John Deere |
| Manufacturer | Yanmar |
| Equipment type | Compact Utility tractor |
| Built in | Built in Japan |
| Original price | $7,670 (1983 )
$11,000 (1989 )
|
| John Deere 850 Engine | |
| Engine | Yanmar 1.3L 3-cyl diesel |
| Details | Engine details ... |
| John Deere 850 Transmission | |
| Transmission | 8-speed gear |
| Details | Transmission details ... |
| John Deere 850 Power | |
| Engine (gross) | 25 hp 18.6 kW |
| Drawbar (claimed) | 19 hp 14.2 kW |
| PTO (claimed) | 22 hp 16.4 kW |
| Drawbar (tested) | 17.77 hp 13.3 kW |
| PTO (tested) | 22.27 hp 16.6 kW |
| Details | Performance test details ... |
| Mechanical | |
| Drive | Two- or four-wheel drive |
| Steering | manual
power (optional) |
| Brakes | Differential mechanical expanding shoe brakes |
| Cab / ROPS | Two-post ROPS. |
| Capacity | |
| Fuel | 8.5 gal 32.2 L |
| Hydraulic system | 4.75 gal 18.0 L 5.25 gal*After 1984 19.9 L |
| Hydraulics | |
| Type | open center |
| Capacity | 4.75 gal 18.0 L 5.25 gal*After 1984 19.9 L |
| Pressure | 2030 psi 140.0 bar |
| Tractor hitch | |
| Rear Type | I |
| Control | position control |
| Power Take-off (PTO) | |
| Rear PTO | transmission *Early models, through the 1983 model year. live two-stage clutch *Introduced in 1984, tractor serial number 16001. |
| Rear PTO Type | 540 (1.375) |
| Engine RPM | 540@2258 |
| Dimensions & Tires | |
| Wheelbase | 64 inches 162 cm |
| Weight | 2400 lbs 1088 kg |
| Front tire | 5.00-15 |
| Rear tire | 9.5-24 |
| Details | Full dimensions and tires ... |
| John Deere 850 attachments | |
| Attachment | 72" mid-mount mower deck snowblower blade front-end loader backhoe |
| Details | Attachment details ... |
| 850 Serial Number Location | |
| Location | Serial number plate on the rear of the John Deere 850, below the PTO shaft. |
| 850 Serial Numbers | |
| 1978 | 1000 |
| 1979 | 3859 |
| 1980 | 7389 |
| 1981 | 11338 |
| 1982 | 12481 |
| 1983 | 14183 |
| 1984 | 16006 |
| 1985 | 18001 |
| 1986 | 22001 |
| 1987 | 25501 |
| 1988 | 28337 |
| Final | 30852 |
| Details | FAQ: How to read a serial number table. |
| Electrical | |
| Ground | negative |
| Charging system | alternator |
| Charging amps | 25 |
| Battery CCA | 570 |
| Battery volts | 12 |
| Battery Group | BCI 30H |
| References | |
| Publication | Introducing the John Deere lawn and garden line for 1979 Consumer Products Price List published in 1983, by John Deere Grounds Care Equipment Purchasing Guide published in 1983, by John Deere Compact Utility/Utility Tractors Product Information Handbook published in 1983, by John Deere Operator's Manual 850, 950 and 1050 Tractors (OMRW19870) published in 1984 John Deere 850 and 950 tractors published in 1978 Operator's Manual 850 and 950 Tractors (OMR68993) published in 1978 John Deere tractors 22 to 50 HP published in 1980 Compact Utility Diesel Tractors 14.5 to 40 PTO hp published in 1982, by John Deere Diesel Tractors 14.5 to 60 PTO hp published in 1984, by John Deere |
Values may vary by engine, transmission or configuration. View source page
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