David Brown 770 vs International Harvester 644 - compare
Compare tractors: David Brown 770 vs International Harvester 644
David Brown 770 vs International Harvester 644 compare - general information
| Specs | David Brown 770 | International Harvester 644 |
|---|---|---|
| Brand | David Brown | International Harvester |
| Model | David Brown 770 | International Harvester 644 |
| Series | n.d. | n.d. |
| Previous model | – | – |
| Next model | – | – |
| Smaller | – | – |
| Larger | – | – |
| Years | from 1965 to 1970 y. | from 1974 to 1980 y. |
| Cab with ROPS | No | No |
| Reviews | David Brown 770 reviews New! | International Harvester 644 reviews New! |
David Brown 770 vs International Harvester 644 - performance
| Specs | David Brown 770 | International Harvester 644 |
|---|---|---|
| Maximum power (HP / kW) | n.d. | 60 KM (44.7 kW) |
| Engine RPM | n.d. | 2150 rpm |
| Fuel consumption | n.d. | n.d. |
| Fuel tank capacity | n.d. | n.d. |
| Max. speed | n.d. | n.d. |
David Brown 770 vs International Harvester 644 - engine
| Specs | David Brown 770 | International Harvester 644 |
|---|---|---|
| Fuel type | Diesel | Diesel |
| Engine producer | David Brown | International Harvester |
| Engine model | David Brown | International Harvester |
| Engine type | Diesel (diesel engine) | Diesel (diesel engine) |
| Engine capacity | 2.4 l. | 3.4 l. |
| Strokes, qty | n.d. | n.d. |
| Cylinders | 3 | 4 |
| Compression | n.d. | n.d. |
| Bore | n.d. | 98 mm |
| Stroke | n.d. | 111 mm |
| Maximum torque | n.d. | n.d. |
| Air filter | n.d. | n.d. |
| Fuel filter | n.d. | n.d. |
| Fuel filter chambers, qty | n.d. | n.d. |
| Oil filter | n.d. | n.d. |
| Oil pump | n.d. | n.d. |
| Speed control (control) | n.d. | n.d. |
| Injection pump | n.d. | n.d. |
| Injectors | n.d. | n.d. |
| Injection pressure | n.d. | n.d. |
| Cooling system | n.d. | liquid cooled engine |
| Forced cooling | n.d. | n.d. |
| Cooler | Yes | |
| Thermostat | Yes | |
| Cooler type | tubular-plate cooler | |
| Coolant system capacity | n.d. | n.d. |
| Clutch | n.d. | n.d. |
David Brown 770 vs International Harvester 644 - turbocharger
| Specs | David Brown 770 | International Harvester 644 |
|---|---|---|
| Turbocharger | No | No |
| Dual turbocharger | Not applicable | Not applicable |
| Intercooler | Not applicable | Not applicable |
| Aftercooler | Not applicable | Not applicable |
| Wastegate valve | Not applicable | Not applicable |
| Variable geometry | Not applicable | Not applicable |
| Additional parameters | – | – |
David Brown 770 vs International Harvester 644 - electronics
| Specs | David Brown 770 | International Harvester 644 |
|---|---|---|
| Supply voltage starter (V) | n.d. | n.d. |
| Ground | n.d. | n.d. |
| Battery (V) | n.d. | n.d. |
| Battery, qty | n.d. | n.d. |
| Charging system | Generator | Generator |
| Charging system producer | n.d. | n.d. |
| Ignition | Manual | Manual |
| Rear stop lamp | Yes | Yes |
| Rear agricultural lamp | n.d. | n.d. |
| Cock lamp | No | No |
David Brown 770 vs International Harvester 644 - PTO
| Specs | David Brown 770 | International Harvester 644 |
|---|---|---|
| PTO rpm | 540 rpm | 540 rpm |
| PTO control | manual | manual |
David Brown 770 vs International Harvester 644 - brakes
| Specs | David Brown 770 | International Harvester 644 |
|---|---|---|
| ABS | No | No |
| Brake assist | No | No |
| Braking system | n.d. | n.d. |
| Differential | No | No |
| Brake type | n.d. | n.d. |
| Discs | – | – |
David Brown 770 vs International Harvester 644 - dimensions
| Specs | David Brown 770 | International Harvester 644 |
|---|---|---|
| Weight | n.d. | from 2880 kg (depending by model) |
| Weight with ROPS | n.d. | n.d. |
| Weight with cab | n.d. | n.d. |
| Length | n.d. | 3780 mm |
| Height | n.d. | 2490 mm |
| Width | n.d. | n.d. |
| Clearance | n.d. | n.d. |
| Rear clearance | n.d. | n.d. |
| Front track width | n.d. | n.d. |
| Rear track width | n.d. | n.d. |
| Wheelbase | n.d. | 2230 mm |
| Front tires | 6-16 | 7.50-16 |
| Rear tires | n.d. | n.d. |
| Max. mass of the trailer without brakes | 1500 kg | 1500 kg |
| Max. mass of the trailer with brakes | n.d. | n.d. |
| Max. axle load | n.d. | n.d. |
| Max. total weight | n.d. | n.d. |
| Turning radius | n.d. | n.d. |
David Brown 770 vs International Harvester 644 - drive
| Specs | David Brown 770 | International Harvester 644 |
|---|---|---|
| Drive system | (depending by model) | 4x2, 2WD (depending by model) |
| Additional | one wheel drive | |
| Permanent 4-wheel drive | n.d. | n.d. |
| Permanent systems that constantly power all the wheels | n/a | n/a |
| Dynamic allocation of power between the axles | n/a | n/a |
| Independent Link Suspension | None | None |
| Articulated suspension | – | – |
| Crawler drive | No | No |
| Hydrostatic steering | No | No |
| Differential | n.d. | n.d. |
| Steering | rod | rod |
| Front rods | n.d. | n.d. |
| Rear planetary drives | n.d. | n.d. |
| Front planetary drives | n.d. | n.d. |
David Brown 770 vs International Harvester 644 - hydraulics
| Specs | David Brown 770 | International Harvester 644 |
|---|---|---|
| Three-point hitch | n.d. | n.d. |
| Three-point hitch type | n.d. | n.d. |
| Three-point hitch performance | n.d. | n.d. |
| Three-point hitch pressure | n.d. | n.d. |
| Load Sensing | No | No |
| Closed | n.d. | n.d. |
| Central | No | No |
| Constant flow | No | No |
| Constant pressure | No | No |
| Control system | n.d. | n.d. |
| Pump | n.d. | n.d. |
| Two-section distributor | n.d. | n.d. |
| Quick couplings | n.d. | n.d. |
| Auto Lift | n.d. | n.d. |
David Brown 770 vs International Harvester 644 - transmission
| Specs | David Brown 770 | International Harvester 644 |
|---|---|---|
| Synchronous transmission | n.d. | n.d. |
| Transmission mechanically synchronized | n/a | n/a |
| PowerShift | No | No |
| PowerShuttle | No | No |
| Additional | – | – |
| Hydrostatic transmission | n.d. | n.d. |
| Forward gears | 12 | 8 |
| Reverse gears | 4 | 4 |
| Creeper | n.d. | n.d. |
David Brown 770 vs International Harvester 644 - equipment
| Specs | David Brown 770 | International Harvester 644 |
|---|---|---|
| Clevis | Yes (???) | Yes (???) |
| Lower catch | n.d. | n.d. |
| Air conditioning | n.d. | n.d. |