Massey Ferguson 491
Type: Utility Tractors
Contents:
Production | |
| Manufacturer: | Massey Ferguson |
| Type: | Utility tractor |
| Factory: | Brazil |
Massey Ferguson 491 Power | |
| Engine (gross): | 89 hp 66.4 kW |
| PTO (claimed): | 77 hp 57.4 kW |
| PTO (tested): | 85.87 hp 64.0 kW |
Mechanical | |
| Chassis: | 4x2 2WD |
| 4x4 MFWD 4WD | |
| Final drives: | planetary |
| Steering: | power |
| Brakes: | independent hydraulic wet disc |
| Cab: | Flat-deck platform with two-post folding ROPS. Optional cab with air-conditioning. |
| Transmission: | 12-speed partially synchronized |
Hydraulics | |
| Type: | open center |
| Valves: | 2 or 3 |
| Pump flow: | 7.0 gpm 26.5 lpm (3-point) |
| 10 gpm 37.9 lpm (aux) | |
| SCV flow: | 17 gpm 64.3 lpm |
| Total flow: | 25 gpm 94.6 lpm |
| Steering flow: | 8.0 gpm 30.3 lpm |
Tractor hitch | |
| Rear Type: | II |
| Control: | position control and top-link draft sensing |
| Rear lift (at 24"/610mm): | 4199 lbs 1904 kg |
Power Take-off (PTO) | |
| Rear PTO: | independent |
| Clutch: | hydraulic wet disc |
| Rear RPM: | 540/1000 |
| Engine RPM: | 540@1900 1000@1900 |
491 Serial Numbers | |
| 2004: | BN00001 |
| 2005: | BP00001 |
Electrical | |
| Ground: | negative |
| Battery volts: | 12 |
Engine Detail | |
| Perkins 1104C-44T | |
| turbocharged diesel | |
| 4-cylinder | |
| liquid-cooled vertical | |
| Displacement: | 268.6 ci 4.4 L |
| Bore/Stroke: | 4.134x5.00 inches 105 x 127 mm |
| Emissions: | Tier II |
| Power (gross): | 89 hp 66.4 kW |
| Air cleaner: | dual paper elements |
| Compression: | 18.2:1 |
| Rated RPM: | 2200 |
| Torque: | 282 lb-ft 382.4 Nm |
| Torque RPM: | 1200 |
| Starter volts: | 12 |
Transmission | |
| Type: | partially synchronized |
| Gears: | 12 forward and 4 reverse |
| Clutch: | 330mm dry disc |
| Three gears (1-3) plus reverse (R) with low/high ranges and an additional synchronized slow/fast range lever. Synchronized shifting between gears 2-3 and the slow/fast range. | |
Dimensions | |
| Wheelbase: | 93 inches 236 cm |
| Length: | 155 inches 393 cm |
| Width: | 80 inches 203 cm |
| Clearance (drawbar): | 14.7 inches 37 cm |
