Massey Ferguson 481: all source data
All 81 values recorded for this model, as the source lists them and in its units. The spec sheet shows the same data checked, typed and converted.
Overview
Production| Manufacturer | Massey Ferguson (a part of AGCO) |
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| (no label) | Utility tractor |
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| (no label) | Built in Brazil |
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Engine| (no label) | Perkins 4.2L 4-cyl diesel |
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Transmission| (no label) | 8-speed gear |
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| (no label) | 8-speed partially synchronized |
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Power| Engine (net) | 75 hp | 55.9 kW |
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| PTO (claimed) | 69 hp | 51.5 kW |
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Mechanical| (no label) | Two- or four-wheel drive |
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| (no label) | Power steering |
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| (no label) | Wet disc brakes |
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| (no label) | Two-post foldable ROPS. |
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Capacity| Fuel | 17.4 gal | 65.9 L |
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| Hydraulic system | 11.1 gal | 42.0 L |
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Hydraulics| Type | open center |
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| Capacity | 11.1 gal | 42.0 L |
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| Pressure | 2500 psi | 172.4 bar |
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| Valves | 2 |
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| Pump flow | 11 gpm | 41.6 lpm |
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| Steering press. | 1740 psi | 120.0 bar |
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Hitch| Rear Type | II |
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| Control | position and draft control |
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| Rear lift (at ends) | 4630 lbs | 2100 kg |
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Pto| Rear PTO | live |
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| Rear PTO | independent |
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| Clutch | 254mm mechanical dry disc |
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| Clutch | hydraulic wet disc |
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| Rear PTO Type | 540 (1.375) |
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| Engine RPM | 540@1908 (gear) |
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| Engine RPM | 540@1789 (shuttle) |
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Dimensions| 2WD Wheelbase (2WD) | 90.2 inches | 229 cm |
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| 4WD Wheelbase (4WD) | 90 inches | 228 cm |
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| Weight | 5750 to 6349 pounds |
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| Front tire | 7.50-16 |
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| 2WD Rear tire (2WD) | 16.9-30 |
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Serial location| (no label) | Serial number on the left side of the tractor, below the dashboard. |
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Electrical| Ground | negative |
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| Charging system | alternator |
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| Charging amps | 35 |
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| Battery CCA | 750 |
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| Battery volts | 12 |
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Engine
Engine detail| (no label) | Perkins 1004-4.2 |
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| (no label) | diesel |
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| (no label) | 4-cylinder |
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| (no label) | liquid-cooled |
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| Displacement | 258 ci | 4.2 L |
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| Bore/Stroke | 4.06x5.00 inches | 103 x 127 mm |
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| Emissions | Tier I |
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| Power (net) | 75 hp | 55.9 kW |
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| Air cleaner | dual dry element |
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| Pre-heating | thermostart |
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| Rated RPM | 2200 |
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| Starter | electric |
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| Starter volts | 12 |
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| Oil capacity | 7.2 qts | 6.8 L |
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| Coolant capacity (Coolant) | 15.4 qts | 14.6 L |
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Transmission
Transmission options| (no label) | 8-speed gear |
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| (no label) | 8-speed partially synchronized |
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Transmission| Type | gear |
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| Gears | 8 forward and 2 reverse |
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| Clutch | 305mm dry disc |
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| Oil capacity | 44.4 qts | 42.0 L |
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| (no label) | Four gears, plus reverse, in two ranges. |
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| Type | partially synchronized |
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| Gears | 8 forward and reverse |
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| Clutch | 305mm dry disc |
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| (no label) | Four synchronized gears in two ranges with left-hand shuttle. |
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Dimensions
Tires| 2WD Standard tires (ag) (2WD) | Front: 7.50-16. Rear: 16.9-30 |
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| 4WD Standard tires (ag) (4WD) | Front: 12.4-24. Rear: 18.4-30 |
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Dimensions| 2WD Wheelbase (2WD) | 90.2 inches | 229 cm |
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| 4WD Wheelbase (4WD) | 90 inches | 228 cm |
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| Length | 155 inches | 393 cm |
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| Width | 80 inches | 203 cm |
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| Height (ROPS) | 103.1 inches | 261 cm |
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| Height (ROPS) | 79.4 inches (folded) | 201 cm |
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| 2WD Shipping weight (2WD) | 5750 lbs | 2608 kg |
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| 4WD Shipping weight (4WD) | 6349 lbs | 2879 kg |
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| Clearance (drawbar) | 16.3 inches | 41 cm |
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| 2WD Front tread | 59.9 to 79.5 inches | 152 to 201 cm |
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| 4WD Front tread | 61 to 77 inches | 154 to 195 cm |
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| Rear tread | 60.2 to 83.8 inches | 152 to 212 cm |
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