john deere 850
 | 1978 - 1989
50 Compact SeriesCompact Utility tractorYanmar built | 1978 - 1989 | 50 Compact Series | Compact Utility tractor | Yanmar built |
|---|---|---|---|---|---|
1978 - 1989 | |||||
50 Compact Series | |||||
Compact Utility tractor | |||||
Yanmar built | |||||
1978 - 1989 | |
|---|---|
50 Compact Series | |
Compact Utility tractor | |
Yanmar built |
Production | |
|---|---|
Distributor | John Deere |
Manufacturer | Yanmar |
Compact Utility tractor | |
Built in Japan | |
Original price | $7,670 (1983 ) |
$11,000 (1989 ) | |
John Deere 850 Engine | |
|---|---|
Yanmar 1.3L 3-cyl diesel | |
Engine details ...  |
John Deere 850 Transmission | |
|---|---|
8-speed gear | |
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 |
Performance test details ...  | |
Mechanical | |
|---|---|
Two- or four-wheel drive | |
Steering | manual |
| power OptOptional |
Differential mechanical expanding shoe brakes | |
Two-post ROPS. | |
Photos | |
|---|---|
 | |
John Deere 850 photos...  |
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 |
Full dimensions and tires ...  | |
John Deere 850 attachments | |
|---|---|
72" mid-mount mower deck | |
snowblower | |
blade | |
front-end loader | |
backhoe | |
Attachment details ...  |
850 Serial Number 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 |
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 | |
|---|---|
 | |
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 |