John Deere 850
John Deere 850 Specs
John Deere 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 |
Yanmar 3T80-J diesel 3-cylinder liquid-cooled Engine Details
| Displacement | 78 ci 1.3 L |
| Bore/Stroke | 3.15×3.35 inches 80 x 85 mm |
| Power (gross) | 25 hp 18.6 kW |
| Air cleaner | paper element |
| Compression | 21.2:1 |
| Rated RPM | 2600 |
| Starter volts | 12 |
| Coolant capacity | 6 qts 5.7 L |
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 |
Transmission
| Type | gear |
| Gears | 8 forward and 2 reverse |
| Clutch | 210mm dry disc |
Capacity
| Fuel | 8.5 gal 32.2 L |
| Hydraulic system | 4.75 gal 18.0 L |
| 5.25 gal* 19.9 L |
Hydraulics
| Type | open center |
| Capacity | 4.75 gal 18.0 L |
| 5.25 gal* 19.9 L | |
| Pressure | 2030 psi 140.0 bar |
Tractor hitch
| Rear Type | I |
| Control | position control |
Power Take-off (PTO)
| Rear PTO | transmission * |
| live two-stage clutch * | |
| Rear PTO Type | 540 (1.375) |
| Engine RPM | 540@2258 |
Electrical
| Ground | negative |
| Charging system | alternator |
| Charging amps | 25 |
| Battery CCA | 570 |
| Battery volts | 12 |
| Battery Group | BCI 30H |
John Deere 850 Tires
| Ag front | 5.00-15 |
| Ag rear | 9.5-24 |
| 11.2-24 | |
| Lawn/turf front | 23/8.5-12 |
| Lawn/turf rear | 13.6-16 |
John Deere 850 Dimensions
| Wheelbase | 64 inches 162 cm |
| Length | 117.7 inches 298 cm |
| Width | 53.3 inches 135 cm |
| Height (hood) | 50.8 inches 129 cm |
| Weight | 2400 lbs 1088 kg |
| Max Drawbar | 825 lbs 374 kg |
| Ground clearance | 13.7 inches 34 cm |
| Front tread | 42 to 58 inches 106 to 147 cm |
| Rear tread | 42 to 50 inches 106 to 127 cm |
John Deere 850 Attachments
Attachment overview
| 72″ mid-mount mower deck | |
| Snowblower | |
| Blade | |
| Front-end loader | |
| Backhoe |
72″ Mower deck
| Type | mid-mount John Deere 72 |
| 3-blade | |
| Cutting width | 72 inches 182 cm |
| Weight | 525 lbs 238 kg |
| Overall width | 84 inches 213 cm |
John Deere 1550 Backhoe
| Backhoe type | John Deere 1550 Backhoe |
| Weight | 1300 lbs 589 kg |
| Transport height | 68 inches 172 cm |
| Digging depth | 93 inches 236 cm |
| Reach from pivot | 131 inches 332 cm |
| Loading height | 65.5 inches 166 cm |
| Bucket Rotation | 180° |
| Swing Arc | 180° |
| Bucket force | 3107 lbs 1409 kg |
| Dipperstick force | 1470 lbs 666 kg |
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