Preview – the David Brown 850 Tractor
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| Meltham, England |
Lubricants and Fluids: Quick View
|
| Fuel |
-unknown- |
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3-Point Hitch
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| Rear Type: |
I |
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Power Take-off (PTO):
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| Rear RPMS: |
|
540,1000 |
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Dimensions & Tires:
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| Wheelbase: |
-unknown- |
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| Weight: |
4094 to 5874 pounds |
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| Front tire: |
|
5.50-16 |
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| Rear tire: |
|
11-28 |
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David Brown 850 Drawbar, Engine & PTO Power:
|
| Engine (net): |
|
35.00 |
hp |
|
26.10 |
kW |
| Drawbar (claimed): |
|
31.00 |
hp |
|
23.12 |
kW |
| Drawbar (tested): |
|
30.93 |
hp |
|
23.06 |
kW |
| PTO (claimed) |
|
34.00 |
hp |
|
25.35 |
kW |
| PTO (tested): |
|
33.56 |
hp |
|
25.03 |
kW |
Mechanical Descriptions
|
| Chassis: |
4×2 2WD |
| Steering: |
-unknown- |
| Brakes: |
differential mechanical |
|
expanding shoe |
David Brown 850 Engine: Diesel
|
| Type: |
David Brown |
| Fuel/Aspiration. |
Diesel |
| Cylinders: |
4 |
| Valves |
-unknown- |
|
|
|
|
|
| Bore/Stroke: |
|
3.5 |
inches |
x |
4.0 |
inches |
|
|
89 |
mm |
x |
102 |
mm |
| Displacement: |
|
154 |
ci |
|
2.5 |
L |
| Power: |
|
35 |
hp |
|
26.1 |
kW |
| Cooling: |
Liquid |
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| Air cleaner: |
Oil bath |
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| Compression: |
17:1 |
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| Rated RPMs: |
2000 |
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| Starter Volts: |
12 |
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David Brown 850 Engine :Gasoline
|
| Type: |
David Brown |
| Fuel/Aspiration: |
Gasoline |
| Cylinders: |
4 |
| Valves: |
-unknown- |
|
|
|
|
|
| Bore/Stroke: |
|
3.50 |
inches |
x |
4.00 |
inches |
|
|
89 |
mm |
x |
102 |
mm |
| Displacement: |
|
154 |
ci |
|
2.5 |
L |
| Cooling: |
Liquid |
|
|
|
|
|
| Air cleaner: |
Oil bath |
|
|
|
|
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| Compression: |
6.25:1 |
|
|
|
|
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| Rated RPMs: |
2000 |
|
|
|
|
|
| Starter Volts: |
12 |
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|
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Transmission:
|
| Gears: |
6 forward and 2 reverse |
| Type: |
Unsynchronised |
| Oil Capacity: |
-unknown- |
Average Dimensions:
|
| Weight (Operating): |
Diesel |
4179 |
lbs |
|
1895 |
kg |
|
Gas |
4094 |
lbs |
|
1857 |
kg |
| Weight (Ballasted): |
|
5874 |
lbs |
|
2664 |
kg |
| Wheelbase: |
-unknown- |
|
|
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| Length: |
-unknown- |
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| Width: |
-unknown- |
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| Height: |
-unknown- |
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David Brown 850 Tires:
|
| Ag front: |
5.50-16 |
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| Ag rear: |
11-28 |
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Nebraska Tractor Test 734:
|
| Test Date: |
March 12-26, 1960 |
|
|
|
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| Type: |
6-Speed 2WD |
|
|
|
|
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| Engine: |
diesel |
|
|
|
|
|
| PTO power (rated engine speed): |
33.56 |
hp |
|
25.0 |
kW |
| PTO fuel use (engine speed): |
2.2 |
gal/hour |
|
8.3 |
l/hour |
| PTO power (rated PTO speed): |
28.24 |
hp |
|
21.1 |
kW |
| PTO fuel use (PTO speed): |
1.7 |
gal/hour |
|
6.4 |
l/hour |
| Drawbar power (max): |
|
30.93 |
hp |
|
23.1 |
kW |
| Drawbar fuel use (max): |
2.3 |
gal/hour |
|
8.7 |
l/hour |
Nebraska Tractor Test 735:
|
| Test Date: |
March 14 – April 2, 1960 |
|
|
|
|
| Type: |
6-Speed 2WD |
|
|
|
|
|
| Engine: |
gasoline |
|
|
|
|
|
| PTO power (rated engine speed): |
32.00 |
hp |
|
23.9 |
kW |
| PTO fuel use (engine speed): |
3.0 |
gal/hour |
|
11.4 |
l/hour |
| PTO power (rated PTO speed): |
28.52 |
hp |
|
21.3 |
kW |
| PTO fuel use (PTO speed): |
2.6 |
gal/hour |
|
9.8 |
l/hour |
| Drawbar power (max): |
|
27.64 |
hp |
|
20.6 |
kW |
| Drawbar fuel use (max): |
3.0 |
gal/hour |
|
11.4 |
l/hour |
