John Deere 850 Tests

John Deere 850 tractor photo
1978 - 1989
50 Compact Series
Compact Utility tractor
Yanmar built
Series map:
Nebraska Tractor Test 1280
850 fuel use from test 1280
Nebraska Tractor Test 1280
Diesel 8-speed 2WD
June 12 - 21, 1978
Link: Nebraska Tractor Test 1280 file
PTO performance
Power at rated engine speed22.27 hp
16.6 kW
Fuel use1.6 gal/hour
6.1 l/hour
Power at rated PTO speed20.66 hp
15.4 kW
Fuel use1.4 gal/hour
5.3 l/hour
Drawbar performance
Max power17.77 hp
13.3 kW
Fuel use1.6 gal/hour
6.1 l/hour
Gear 6 used for power test.
Max pull2,699 lbs
1224 kg
Gear 4 used for pull test.
Page information
Peter Easterlund - owner of
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Peter Easterlund - owner/author
Updated on December 11, 2023
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