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| info | |
| 1972 - 1975, Utility tractor | |
| Next model: | Long 560 |
| Production | |
| Distributor: | Long |
| Manufacturer: | UTB/Universal |
| Factory: | Brasov, Romania |
| Capacity | |
| Fuel: | 14.25 gal [53.9 L] |
| 3-Point Hitch | |
| Rear Type: | II/I |
| Rear lift: | 2660 lbs [1206 kg] |
| Power Take-off (PTO) | |
| Rear RPM: | 540 (1.375) |
| Engine RPM: | 540@1970 |
| Dimensions & Tires | |
| Wheelbase: | 81.5 inches [207 cm] |
| Weight: | 4570 to 9110 pounds |
| Front tire: | 7.50-16 |
| Rear tire: | 18.4-28 |
| 550 Serial Numbers | |
| - Serial numbers unknown - |
| Long 550 Power | |
| Engine: | 60 hp [44.7 kW] |
| Drawbar (claimed): | 46.7 hp [34.8 kW] |
| PTO (claimed): | 53.7 hp [40.0 kW] |
| Drawbar (tested): | 46.73 hp [34.8 kW] |
| PTO (tested): | 53.61 hp [40.0 kW] |
| Mechanical | |
| Chassis: | 4x2 2WD |
| Steering: | manual, power assist*Optional |
| Brakes: | independent contracting band |
| Cab: | Open operator station. |
| Hydraulics | |
| Type: | open center |
| Pressure: | 2133 psi [147.1 bar] |
| Pump flow: | 5.75 gpm [21.8 lpm] |
| Electrical | |
| Ground: | negative |
| Battery | |
| Volts: | 12 |
| info | |
| Bore/Stroke: | 3.74x4.33 inches [95 x 110 mm] |
| Power: | 60 hp [44.7 kW] |
| Fuel system: | direct injection |
| Compression: | 17:1 |
| Rated RPM: | 2400 |
| Starter volts: | 12 |
| Oil capacity: | 11 qts [10.4 L] |
| Coolant capacity: | 14.7 qts [13.9 L] |
| Engine Detail | |
| Uzina, diesel, 4-cylinder, liquid-cooled, 190.7 ci [3.1 L] |
| info | |
| Next model: | Long 560 |
| Transmission | |
| Type: | gear |
| Gears: | 8 forward and 2 reverse |
| Clutch: | 279.4mm dry disc |
| Oil capacity: | 18 qts [17.0 L] |
| info | |
| Next model: | Long 560 |
| Dimensions | |
| Weight (operating): | 4570 lbs [2072 kg] |
| Weight (ballasted): | 9110 lbs [4132 kg] |
| Wheelbase: | 81.5 inches [207 cm] |
| Front tread: | 52 to 79 inches [132 to 200 cm] |
| Rear tread: | 47.25 to 74.7 inches [120 to 189 cm] |
| Long 550 Tires | |
| Ag front: | 7.50-16 |
| Ag rear: | 18.4-28 |