- WhichTractor size: Utility
- Not independently tested
- 1960–1965
- 13,771 built
It sits on the compact/utility boundary, so either size is a fair description. WhichTractor size, not the maker’s category
Derived by WhichTractor from a sourced three-point linkage. How we decide what a machine is
David Brown 850 Implematic Full specifications
DAVID BROWN AD 4/36 A-106 four-cylinder. The manufacturer claimed 35.0 horsepower. No laboratory has tested one, so there is no measured figure at the shaft.
Engine power, claimed · gross or net not stated
35.0 hp
26.1 kW as stated by the source
Not independently tested
Claimed · standard not stated by the source
Source · Traktorenlexikon, “David Brown 850”, claimed
- Weight
- 3,704 lb
- 3-point lift
- 1,931 lb
- Hyd. flow
- 6.0 gpm
- Top speed
- 15.5 mph
David Brown 850 Implematic specs: key facts
The David Brown 850 Implematic was built from 1960 to 1965.
The David Brown 850 Implematic has a claimed engine power (gross or net not stated) of 26.1 kW (35.0 hp); it has no measured PTO figure.
The David Brown 850 Implematic is two-wheel drive (2WD).
The David Brown 850 Implematic has a DAVID BROWN AD 4/36 A-106 engine, a 4-cylinder 2.52 L unit.
The David Brown 850 Implematic weighs 1,680 kg (3,704 lb) unladen.
The David Brown 850 Implematic has a rear PTO running at 540 rpm.
The three-point hitch of the David Brown 850 Implematic lifts 876 kg (1,931 lb) at the lower-link ends.
The hydraulic pump of the David Brown 850 Implematic delivers 22.7 L/min (6.0 gpm).
Source · Traktorenlexikon, “David Brown 850”
How much horsepower does an 850 Implematic have?
The only figure for the 850 Implematic is 35.0 hp (26.1 kW) of claimed engine power, gross or net not stated, no test standard stated — not power at the shaft.
Source · Traktorenlexikon, “David Brown 850”
What engine is in an 850 Implematic?
An 850 Implematic has a DAVID BROWN AD 4/36 A-106, a 4-cylinder 2.52 L engine.
| Make & model | DAVID BROWN AD 4/36 A-106 |
|---|---|
| Cylinders | 4, liquid-cooled |
| Displacement | 154.0 ci · 2.52 L |
| Max torque | 110 lb·ft · 149 N·m @ 1,175 rpm |
Source · Traktorenlexikon, “David Brown 850”
How much will an 850 Implematic lift, and what is its hydraulic flow?
An 850 Implematic lifts 1,931 lb (876 kg) at the lower-link ends of its Category 1 three-point hitch.
| Pump flow | 6.0 gpm · 22.7 L/min |
|---|---|
| Hitch category | Category 1 |
| Lift at ends | 1,931 lb · 876 kg |
| Rear PTO | transmission-driven, 540 rpm @ 1,620 engine rpm |
| PTO shaft | 1 3/8"- 6 splines (Form-A) |
Source · Traktorenlexikon, “David Brown 850”
What transmission does an 850 Implematic have?
Transmission specifications for the 850 Implematic are below.
| Clutch | Pedal-operated dry BORG & BECK single-plate clutch type 10 inch |
|---|---|
| Steering | Mechanical recirculating ball steering |
| Top speed | 15.5 mph · 25 km/h |
Source · Traktorenlexikon, “David Brown 850”
How much does an 850 Implematic weigh?
An 850 Implematic weighs 3,704 lb (1,680 kg) unladen.
| Unladen weight | 3,704 lb · 1,680 kg |
|---|---|
| Wheelbase | 75.2 in · 1,911 mm |
| Length | 114.0 in · 2,896 mm |
| Width | 62.8 in · 1,594 mm |
| Height | 51.5 in · 1,308 mm |
| Ground clearance | 15.5 in · 394 mm |
| Front track | 52.0–76.0 in · 1,321–1,930 mmWikibooks gives one track for both axles |
| Rear track | 52.0–76.0 in · 1,321–1,930 mmWikibooks gives one track for both axles |
| Turning radius, braked | 7.9 ft · 2.41 m |
Source · Traktorenlexikon, “David Brown 850”
Which tractors compare with an 850 Implematic?
Within 10% of its 28.2 hp at the PTO (claimed), the same type, and first built within 15 years of it.
- Renault Super 528.2 hp PTO, claimed · 1962–1965Side by side with the 850 Implematic →
- International Harvester D-43028.1 hp PTO, claimed · 1956–1962Side by side with the 850 Implematic →
- BOLINDER-MUNKTELL 230 Victor28.6 hp PTO, claimed · 1955–1961Side by side with the 850 Implematic →
- Volvo T-23028.6 hp PTO, claimed · 1955–1961Side by side with the 850 Implematic →
- URSUS C-33028.6 hp PTO, claimed · 1967–1987Side by side with the 850 Implematic →
- URSUS C-33528.6 hp PTO, claimed · 1967–1987Side by side with the 850 Implematic →
Everything else people ask
Is an 850 Implematic two-wheel drive or four-wheel drive?
The David Brown 850 Implematic is two-wheel drive (2WD).
What PTO does an 850 Implematic have?
An 850 Implematic has a 540 rpm rear PTO on a 1 3/8"- 6 splines (Form-A) shaft.
What serial numbers does an 850 Implematic carry?
The source prints serial numbers 300001 to 306334 for the type VAD-2 B (A 850 D/B 850 D) and VAG-2 A (A 850 G/B 850 G). It does not say whether that is the tractor’s or the engine’s number, and we never work out a year from a serial number.
Where this page comes from
Compiled from Traktorenlexikon, “David Brown 850”.
Sources
Facts taken from these documents, units converted. Numbers beside a figure refer to this list. Licences and attribution
- Traktorenlexikon: David Brown 850 — CC BY-SA 4.0, WIKIBOOKS-TL-104344 · revision 988588. Wikibooks contributors (Traktorenlexikon). Original document