| Manufacturer | Montana |
| Price | - |
| Model | R3644 |
| Equipment Type | Compact Utility Tractors |
| Factory |
MONTANA R3644 POWER
| Engine | 38.5hp / 28.7kW |
| Gear PTO (claimed) | 31hp / 23.1kW |
| Hydro PTO (claimed) | 29hp / 21.6kW |
ENGINE DETAIL
The Montana R3644 tractor, powered by the Mitsubishi S4L2 diesel engine, delivers 38.5hp with an efficient indirect injection fuel system, making it suitable for various agricultural tasks while ensuring reliable performance at rated RPM of 2700. Its 1.8L displacement and dry dual element air cleaner offering enhance longevity and optimal air intake efficiency, though users should monitor engine temperature due to the liquid cooling design. Ideal for small to mid-sized farms, it strikes a balance between power and fuel efficiency, though limited horsepower may restrict use in heavy-duty applications.
| Description | Mitsubishi S4L2 diesel 4-cylinder liquid-cooled |
| Displacement | 107.3ci / 1.8L |
| Bore/Stroke | 3.07x3.622inches / 78x 92 mm |
| Power | 38.5hp / 28.7kW |
| Fuel system | indirect injection |
| Air cleaner | dry dual element |
| Rated RPM | 2700 |
| Starter volts | 12 |
MONTANA R3644 ENGINE
The Montana R3644 is powered by a Mitsubishi 1.8L 4-cylinder diesel engine, providing efficient fuel consumption while maintaining adequate torque for various applications. With an 8.5-gallon fuel tank, it offers moderate operational range but may require frequent refueling during extended use. Ideal for light to medium-duty tasks, its compact size can be advantageous for maneuverability in tighter spaces, though power output may be a limitation for heavier agricultural demands.
| Description | Mitsubishi 1.8L 4-cyl diesel |
| Fuel tank | 8.5gal / 32.2L |
TRANSMISSIONS OVERVIEW
The Montana R3644 tractor features a 12-speed hydrostatic transmission, providing seamless and responsive control for various agricultural tasks. The hydrostatic design allows for precise speed adjustments without the need for clutching or gear shifting, which enhances operator comfort during prolonged use. However, while hydrostatic systems can simplify operation, they may have higher initial maintenance costs and reduced efficiency at extreme loads compared to traditional gear systems.
| Description | 12-speed/hydrostatic |
TRANSMISSION 1
The Montana R3644 features a sliding gear transmission with a synchronized shuttle, allowing for smoother gear transitions during directional changes, which enhances operational efficiency and reduces operator fatigue. With 12 forward and reverse gears, it provides versatility for various field conditions and tasks, enabling precise speed control. An important consideration is that sliding gear transmissions may require more maintenance and operator skill compared to fully synchronized systems, especially in heavy-duty applications.
| Transmission | sliding gear, synch shuttle |
| Gears | 12 forward and reverse |
TRANSMISSION 2
The Montana R3644 features a hydrostatic transmission, enabling smooth and seamless speed adjustments, ideal for precision tasks in varied terrains. Its infinite (3-range) forward and reverse gear capability enhances operational flexibility, allowing for efficient maneuvering in tight spaces. However, hydrostatic systems may have a higher maintenance requirement and can be less fuel-efficient compared to mechanical transmissions under heavy loads.
| Type | hydrostatic |
| Gears | infinite (3-range) forward and reverse |
MECHANICAL
The Montana R3644 tractor features a 4x4 MFWD setup, offering enhanced traction and stability on various terrains, making it suitable for diverse agricultural applications. Its wet disc braking system provides reliable stopping power, particularly in challenging working conditions, while the 12-speed hydrostatic transmission enables smooth speed control and effortless operation. However, the two-post ROPS cab configuration may have limited operator protection compared to fully enclosed cabs, which could be a consideration in hazardous environments.
| Chassis | 4x4 MFWD 4WD |
| Steering | power |
| Brakes | wet disc |
| Cab | Two-post ROPS |
| Transmissions | 12-speed/hydrostatic |
HYDRAULICS
| Pressure | 2417psi / 166.7bar |
| Valves | 2 |
| Pump flow | 8.1gpm / 30.7lpm |
| Steering flow | 3.592gpm / 13.6lpm |
| Steering press. | 1706psi / 117.6bar |
TRACTOR HITCH
| Rear Type | I |
| Rear lift (at ends) | 2619lbs / 1187kg |
POWER TAKE-OFF (PTO)
| Rear PTO | independent |
| Rear RPM | 540 |
| Mid PTO | optional |
MONTANA R3644 TIRES
The Montana R3644 tractor features front tires sized 7-16 with a 4-ply rating and rear tires 12.4-24 with an 8-ply rating, providing a balanced load distribution and enhanced grip for agricultural operations. The 4-ply front tires allow for better maneuverability, while the heavier-rated rear tires support increased stability and traction on varied terrain. In scenarios involving heavy tillage or hauling, tire choice may result in optimal performance, but users should account for potential soil compaction risks with the wider rear tire footprint.
| Ag front | 7-16,4PR(7-14) |
| Ag rear | 12.4-24,8PR(11.2-24) |
DIMENSIONS
| Length | 117inches / 297cm |
| Height | 91inches / 231cm |
| Weight | 2712lbs / 1230kg |
| Ground clearance | 13inches / 33cm |
DIMENSIONS & TIRES
The Montana R3644 tractor, weighing 2712 lbs (1230 kg), offers a well-balanced structure for various agricultural tasks. Its front tires (7-16, 4PR) and rear tires (12.4-24, 8PR) provide stability and traction, making it suitable for terrains requiring maneuverability and power. Ensure proper tire pressure and load distribution for optimal performance and longevity, particularly when performing heavy-duty tasks.
| Weight | 2712lbs / 1230kg |
| Front tire | 7-16,4PR(7-14) |
| Rear tire | 12.4-24,8PR(11.2-24) |
ELECTRICAL
| Ground | negative |
| Charging system | alternator |
| Charging amps | 50 |
| Battery volts | 12 |