Technical specifications of MTZ-501/521 agricultural tractor:
MTZ-501/521 agricultural tractor was produced from 1973 to 1977. It was equipped with a D60 engine with a displacement of 4750 cm³. This engine has four cylinders and achieves a maximum power of 67 HP at 1800 RPM and a torque of 262 Nm at 1100 RPM. The cylinder bore is 110 mm, and the stroke is 125 mm. The gearbox offers 9 forward and 2 reverse gears, allowing a driving speed from 2.0 to 27.3 km/h. The hydraulic pump capacity is 50 liters per minute, and the mechanically controlled rear lift has a maximum capacity of 2000 kg. The power take-off (PTO) operates at 540 RPM. The turning radius for the 2WD version is 8.8 meters, and for the 4WD version, it is 9.9 meters. The front tire size is 7.50-20 for the 2WD version and 8.30-20 for the 4WD version, while the rear tires are 13.6-38 for both versions. The total weight of the tractor is 3330 kg for the 2WD version and 3490 kg for the 4WD version, and its dimensions are: height with cab 251 cm, length 385 cm, and width 110 cm. The fuel tank capacity is 90 liters.
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Technical data sheet for MTZ-501/521, MTZ-505/525, MTZ-80/82, MTZ-800/820 agricultural tractors:
| Model | MTZ-501/521 | MTZ-505/525 | MTZ-80/82 | MTZ-800/820 |
| Years of production | 73-77 | 77-83 | 75-77 | 77-83 |
| Engine model / type | D60 | D60 | D240 | D240 |
| Number of cylinders / turbocharging | 4 | 4 | 4 | 4 |
| Engine displacement (cm3) | 4750 | 4750 | 4750 | 4750 |
| Piston dimension / stroke (mm) | 110×125 | 110×125 | 110×125 | 110×125 |
| Maximum engine power (hp) / rpm | 67/1800 | 67/1800 | 80/2200 | 80/2200 |
| Torque (Nm) / rpm | 262/1100 | 262/1100 | 268/1000 | 275/1400 |
| Number of gears (front + rear) | 9+2 | 9+2 | 18+4 | 18+4 |
| Number of synchronized gears (front+rear) | – | – | – | – |
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| Speed-Shift | – | – | – | – |
| Type of reverse | – | – | – | – |
| Driving speed (km/h) | 2,0-27,3 | 2,0-27,3 | 1,9-33,4 | 1,9-33,4 |
| Max Driving speed (km/h) | – | – | – | – |
| Hydraulic pump capacity (L/min) | 50 | 50 | 50 | 50 |
| 3-Point Hitch control | mech | mech | mech | mech |
| 3-point hitch max load (kg) | 2000 | 2700 | 2000 | 2700 |
| PTO speed (rpm) | 540 | 540 | 540/1000 | 540/1000 |
| Disc brake type (dry / wet) | – | – | – | – |
| Type of control of the braking system | – | – | – | – |
| Turning radius 2WD (m) | 8,8 | 9,3 | – | – |
| Turning radius 4WD (m) | 9,9 | 9,5 | – | – |
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| Front wheel 2WD | 7,50-20 | 7,50-20 | 7,50-20 | 7,50-20 |
| Front wheel 4WD | 8,30-20 | 8,30-20 | 8,30-20 | 8,30-20 |
| Rear wheel 2WD | 13,6-38 | 13,6-38 | 15,5-38 | 15,5-38 |
| Rear wheel 4WD | 13,6-38 | 13,6-38 | 15,5-38 | 15,5-38 |
| 2WD total weight (kg) | 3330 | 3450 | 3655 | 3655 |
| 4WD total weight (kg) | 3490 | 3670 | 3820 | 3855 |
| Total height with cabin (cm) | 251 | 279 | 265 | 279 |
| Total length (cm) | 385 | 385 | 382 | 402 |
| Total width (cm) | 110 | 110 | – | – |
| Fuel tank capacity (l) | 90 | 85 | 87 | 87 |
| Cabin sound level (dB) | – | – | – | – |
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