| Manufacturer | McCormick Intl |
| Price | - |
| Model | MB55 |
| Equipment Type | Utility Tractors |
| Factory |
MCCORMICK INTL MB55 POWER
| Engine | 58hp / 43.3kW |
| PTO (claimed) | 54hp / 40.3kW |
ENGINE DETAIL
The McCormick Intl MB55 tractor is powered by a Perkins 1103C-33 diesel engine, featuring a robust displacement of 3.3L and a high torque output of 163.5 lb-ft at 1400 RPM, which ensures effective pulling capability for various agricultural tasks. With a compression ratio of 19.25:1, the tractor provides efficient combustion, resulting in optimal power delivery at a rated RPM of 2200. Challenges may include maintaining the three-cylinder engine's balance and minimizing vibrations during operation, but its lightweight design makes it well-suited for maneuverability in confined spaces.
| Description | Perkins 1103C-33 diesel 3-cylinder liquid-cooled |
| Displacement | 201ci / 3.3L |
| Bore/Stroke | 4.134x5.00inches / 105x 127 mm |
| Power | 58hp / 43.3kW |
| Compression | 19.25:1 |
| Rated RPM | 2200 |
| Torque | 163.5 lb-ft /221.7 Nm |
| Torque RPM | 1400 |
MCCORMICK INTL MB55 ENGINE
The McCormick Intl MB55, powered by a Perkins 3.3L 3-cylinder diesel engine, offers a reliable powertrain with good torque characteristics suitable for various agricultural applications. Its 23-gallon fuel tank provides an advantageous operating range, reducing the frequency of refueling during extended tasks. However, the smaller engine size may limit heavy-duty performance under maximum load conditions, making it ideal for light to moderate tasks rather than intensive applications.
| Description | Perkins 3.3L 3-cyl diesel |
| Fuel tank | 23gal / 87.1L |
TRANSMISSIONS OVERVIEW
The McCormick Intl MB55 tractor offers a versatile 12-speed or an optional 24-speed transmission, facilitating smooth shifting for various field applications. This multi-speed range enhances operational efficiency, allowing for optimal power management during tasks such as plowing or tilling. However, operators must be aware that increased complexity can lead to potential maintenance challenges in the transmission system.
| Description | 12-speed/24-speed |
TRANSMISSION 1
The McCormick Intl MB55 features a 12-speed transmission, providing versatile gear selection for optimal performance in various agricultural tasks. The range of forward and reverse gears allows for improved maneuverability in tight spaces, enhancing productivity during operations like plowing and hauling. However, operators may face a learning curve with gear shifting in complex terrains, necessitating familiarity with the gear ratios for efficient usage.
| Gears | 12 forward and reverse |
TRANSMISSION 2
The McCormick Intl MB55 features a robust gear transmission with 24 forward and 12 reverse gears, providing exceptional versatility for various agricultural tasks. This extensive range allows for precise speed control, making it advantageous for both high-speed fieldwork and low-speed applications like tilling or cultivating. However, the complexity of operating such a multi-gear system may challenge novice users during initial use.
| Gears | 24 forward and 12 reverse |
MECHANICAL
The McCormick Intl MB55 features a 4x2 2WD chassis, providing adequate traction for light to moderate agricultural tasks but may struggle on uneven terrain compared to 4WD models. The hydrostatic power steering enhances maneuverability, crucial for tasks requiring precision, while the mechanical wet disc brakes offer reliable stopping power, particularly beneficial in heavy-load scenarios. The optional canopy on the four-post ROPS cab improves operator safety and comfort, making it suitable for extended use in varied weather conditions.
| Chassis | 4x2 2WD |
| Steering | hydrostatic power |
| Brakes | mechanical wet disc |
| Cab | Four-post ROPS. Optional canopy. |
| Transmissions | 12-speed/24-speed |
HYDRAULICS
| Pressure | 2600psi / 179.3bar |
| Valves | 1 or 2 |
| Pump flow | 13.8gpm / 52.2lpm |
| Total flow | 19.2gpm / 72.7lpm |
TRACTOR HITCH
| Rear Type | II |
| Rear lift | 5,700lbs / 2585kg/8,140lbs / 3692kg (optional) |
POWER TAKE-OFF (PTO)
| Rear PTO | independent |
| Rear RPM | 540 |
MCCORMICK INTL MB55 TIRES
The McCormick Intl MB55 tractor features an agricultural tire configuration of 7.50-16 at the front and 14.9R28 at the rear, which provides enhanced traction and stability on varied terrains. The larger rear tires improve load-bearing capacity and reduce soil compaction, advantageous for farming applications. However, the tire size may pose challenges in tight spaces or on uneven ground, necessitating careful maneuvering.
| Ag front | 7.50-16 |
| Ag rear | 14.9R28 |
DIMENSIONS
| Wheelbase | 83.7inches / 212cm |
| Length | 127.5inches / 323cm |
| Width | 66inches / 167cm |
| Height (steering wheel) | 66.9inches / 169cm |
| Height (ROPS) | 94.9inches / 241cm |
| Weight | 5,346lbs / 2424kg |
| Ground clearance | 13.8inches / 35cm |
| Front tread | 52 to 71.6inches / 132to 181 cm |
| Rear tread | 51.2 to 74.8inches / 130to 189 cm |
DIMENSIONS & TIRES
The McCormick Intl MB55 tractor boasts a compact wheelbase of 83.7 inches, enhancing maneuverability in tight spaces, which is ideal for small farms or orchards. Weighing in at 5,346 lbs, its substantial mass provides stability during fieldwork but may limit mobility on soft ground. The combination of front 7.50-16 and rear 14.9R28 tires indicates a design focused on traction and flotation, suitable for various applications, though tire selection may need adjustments based on specific soil types or conditions encountered.
| Wheelbase | 83.7inches / 212cm |
| Weight | 5,346lbs / 2424kg |
| Front tire | 7.50-16 |
| Rear tire | 14.9R28 |