| Manufacturer | Massey Ferguson |
| Price | - |
| Model | 491 |
| Equipment Type | Utility Tractors |
| Factory | Brazil |
NEBRASKA TRACTOR TEST 1851 2
| Description | Diesel 12-speed 4WD May 25 - 26, 2005 Link: Nebraska Tractor Test 1851 file PTO performance |
| Max power | 85.87hp / 64.0kW |
| Fuel use | 4.9gal/hour / 18.5l/hour |
| Power at rated engine speed | 78.81hp / 58.8kW |
| Power at rated PTO speed | 84.16hp / 62.8kW |
MASSEY FERGUSON 491 POWER
| Engine (gross) | 89hp / 66.4kW |
| PTO (claimed) | 77hp / 57.4kW |
| PTO (tested) | 85.87hp / 64.0kW |
ENGINE DETAIL
The Massey Ferguson 491 is powered by a Perkins 1104C-44T turbocharged diesel engine, offering 89 hp and significant torque of 282 lb-ft at a low 1200 RPM, making it well-suited for heavy-duty applications like tilling and plowing. Its relatively high compression ratio of 18.2:1 contributes to efficient fuel consumption but may necessitate regular maintenance of the dual paper air cleaners to prevent performance degradation. While it meets Tier II emissions standards, operators in regions with stricter regulations may need to consider emissions compliance upgrades.
| Description | Perkins 1104C-44T turbocharged diesel 4-cylinder liquid-cooled vertical |
| Displacement | 268.6ci / 4.4L |
| Bore/Stroke | 4.134x5.00inches / 105x 127 mm |
| Emissions | Tier II |
| Power (gross) | 89hp / 66.4kW |
| 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 |
MASSEY FERGUSON 491 ENGINE
The Massey Ferguson 491 is equipped with a Perkins 4.4L 4-cylinder diesel engine, providing a balance of power and fuel efficiency suitable for medium-duty agricultural tasks. The 29-gallon (109.8L) fuel tank allows for extended operation between refuels, minimizing downtime in the field. Key challenges may include maintenance accessibility due to the engine's compact design, which can complicate servicing routines.
| Description | Perkins 4.4L 4-cyl diesel |
| Fuel tank | 29gal / 109.8L |
TRANSMISSION
The Massey Ferguson 491 features a partially synchronized transmission with 12 forward and 4 reverse gears, providing flexibility in varying operational conditions. The 330mm dry disc clutch allows for smoother engagements, particularly advantageous during field work requiring frequent gear changes. However, the limitation of synchronization only between gears 2-3 may necessitate shifting skills in non-synchronized ranges, potentially posing challenges for users in fast-paced, dynamic environments.
| Type | partially synchronized |
| Gears | 12 forward and 4 reverse |
| Clutch | 330mm dry disc |
| Description | 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. |
MECHANICAL
The Massey Ferguson 491 offers versatile drivetrain options, with both 2WD and 4WD configurations, enhancing traction in varied terrains. Its independent hydraulic wet disc brakes provide reliable stopping power, while the 12-speed partially synchronized transmission allows for smooth gear transitions, making it suitable for a range of farming tasks. The optional air-conditioned cab improves operator comfort during long hours, though the flat-deck design may expose operators to the elements when not enclosed.
| 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 | 7.0gpm / 26.5lpm (3-point)/10gpm / 37.9lpm (aux) |
| SCV flow | 17gpm / 64.3lpm |
| Total flow | 25gpm / 94.6lpm |
| Steering flow | 8.0gpm / 30.3lpm |
TRACTOR HITCH
| Rear Type | II |
| Control | position control and top-link draft sensing |
| Rear lift (at 24 | 4199lbs / 1904kg |
POWER TAKE-OFF (PTO)
| Rear PTO | independent |
| Clutch | hydraulic wet disc |
| Rear RPM | 540/1000 |
| Engine RPM | 540@1900 / 1000@1900 |
MASSEY FERGUSON 491 TIRES
The Massey Ferguson 491 features an agricultural front tire size of 12.4-24 and a rear tire size of 18.4-30, which provides substantial traction and stability for field operations. Its tire configuration allows for efficient weight distribution and improved clearance on uneven terrain, making it suitable for various agricultural tasks, such as plowing and tilling. However, be aware of potential challenges in tight spaces due to its larger rear tire size, which may limit maneuverability in smaller fields or orchards.
| Ag front | 12.4-24 |
| Ag rear | 18.4-30 |
DIMENSIONS
| Wheelbase | 93inches / 236cm |
| Length | 155inches / 393cm |
| Width | 80inches / 203cm |
| Clearance (drawbar) | 14.7inches / 37cm |
MASSEY FERGUSON 491 WEIGHT
| 2WD ROPS Shipping | 6,812lbs / 3089kg |
| 4WD ROPS Shipping | 7,275lbs / 3299kg |
| 2WD Cab Shipping | 7,562lbs / 3430kg |
| 4WD Cab Shipping | 8,025lbs / 3640kg |
| 4WD ROPS Operating | 7,435lbs / 3372kg |
MASSEY FERGUSON 491 HEIGHT
| ROPS | 102.5inches / 260cm/79.4inches / 201cm (folded) |
| Cab | 106inches / 269cm |
| Exhaust | 108inches / 274cm |
DIMENSIONS & TIRES
The Massey Ferguson 491 tractor features a wheelbase of 93 inches, providing stability and maneuverability in tight spaces. Weighing between 6812 to 8025 pounds, it offers a robust frame suitable for various agricultural tasks; however, operators should consider the weight when traversing soft or uneven terrain. The specified tire sizes (12.4-24 front and 18.4-30 rear) enhance traction and load-bearing capacity, making it effective for heavy-duty operations but may require careful selection of compatible implements to avoid overloading.
| Wheelbase | 93inches / 236cm |
| Weight | 6812 to 8025 pounds |
| Front tire | 12.4-24 |
| Rear tire | 18.4-30 |
MASSEY FERGUSON 1065 LOADER
| Description | Compatible with 2WD only. |
| Height (to pin) | 129.7inches / 329cm |
| Clearance, dumped bucket | 103.3inches / 262cm |
| Dump reach | 28.5inches / 72cm |
| Dump angle | 38° |
| Clearance, level bucket | 122.5inches / 311cm |
| Reach at ground | 81inches / 205cm |
| Rollback angle | 22° |
| Breakout force (at pin) | 6354lbs / 2882kg |
| Breakout force (bucket) | 4509lbs / 2045kg |
| Lift to full height (at pin) | 4197lbs / 1903kg |
| Lift to full height (at 500mm) | 2676lbs / 1213kg |
| Lift to 1.5m (at pin) | 4944lbs / 2242kg |
| Bucket width | 72inches / 182cm/84inches / 213cm |
MASSEY FERGUSON 1070 LOADER
| Height (to pin) | 135inches / 342cm |
| Clearance, dumped bucket | 98inches / 248cm |
| Dump reach | 49inches / 124cm |
| Dump angle | 55° |
| Clearance, level bucket | 124inches / 314cm |
| Reach at ground | 96inches / 243cm |
| Rollback angle | 48° |
| Breakout force (at pin) | 5254lbs / 2383kg |
| Breakout force (bucket) | 3900lbs / 1769kg |
| Lift to full height (at pin) | 4200lbs / 1905kg |
| Lift to full height (at 500mm) | 3100lbs / 1406kg |
| Lift to 1.5m (at pin) | 4973lbs / 2255kg |
| Bucket width | 72inches / 182cm/84inches / 213cm |
491 SERIAL NUMBERS
| 2004 | BN00001 |
| 2005 | BP00001 |
ELECTRICAL
| Ground | negative |
| Battery volts | 12 |