| Manufacturer | Challenger |
| Price | - |
| Model | MT345B |
| Equipment Type | Utility Tractors |
| Factory |
CHALLENGER MT345B POWER
| Engine (gross) | 91hp / 67.9kW |
| PTO (claimed) | 75hp / 55.9kW |
ENGINE DETAIL
The Challenger MT345B features a turbocharged aftercooled 3-cylinder diesel engine with a displacement of 3.3L, providing 91hp at a rated RPM of 2150, which balances power and efficiency for mid-sized agricultural tasks. Its compact design, with a bore/stroke ratio favorable for torque generation, enhances performance during heavy-duty applications like plowing and field preparation. However, the limited number of cylinders could result in less smooth operation compared to larger engines, necessitating careful load management for optimal performance.
| Description | Challenger turbocharged aftercooled diesel 3-cylinder liquid-cooled |
| Displacement | 201.4ci / 3.3L |
| Bore/Stroke | 4.13x5.00inches / 105x 127 mm |
| Power (gross) | 91hp / 67.9kW |
| Rated RPM | 2150 |
| Starter volts | 12 |
CHALLENGER MT345B ENGINE
The Challenger MT345B is equipped with a 3.3L 3-cylinder diesel engine, offering a balance of power and fuel efficiency. With a 29-gallon fuel tank, it provides extended operational endurance, beneficial for long hours of field work. However, the smaller engine size may limit power output compared to larger models, making it less suitable for heavy-duty applications.
| Description | Challenger 3.3L 3-cyl diesel |
| Fuel tank | 29gal / 109.8L |
TRANSMISSIONS OVERVIEW
The Challenger MT345B tractor features a 12-speed synchronized power shuttle transmission, allowing for smoother gear transitions and improved operational efficiency, crucial for varying field conditions. This setup enhances productivity when handling tasks requiring frequent direction changes, such as tilling or plowing. However, operators must be adept at managing the shifting process to maximize performance and avoid potential transmission wear.
| Description | 12-speed synchronized shuttle 12-speed power shuttle |
TRANSMISSION 1
The Challenger MT345B tractor features a synchronized shuttle transmission, allowing for smoother gear shifts in both forward and reverse operations, which can enhance productivity during field work. With 12 forward and reverse gears distributed across four gears in three ranges, operators can achieve optimal torque and speed for various applications, improving efficiency in diverse terrains. However, the mechanical shuttle may require more physical effort compared to hydrostatic systems, which can be a factor in operator fatigue during extended use.
| Type | synchronized shuttle |
| Gears | 12 forward and reverse |
| Description | Four gears in three ranges with mechanical shuttle. |
TRANSMISSION 2
The Challenger MT345B features a power shuttle transmission with 12 forward and reverse gears, enabling seamless direction changes without losing momentum. The four gears across three ranges facilitate optimal power management for varying field conditions, enhancing productivity. The push-button clutch system allows for convenient gear shifting, reducing driver fatigue and streamlining operation, particularly beneficial in applications requiring frequent directional changes, such as tillage or harvesting.
| Type | power shuttle |
| Gears | 12 forward and reverse |
| Description | Four gears in three ranges with power shuttle. Push-button clutch allows gear shifting without the use of the foot clutch. |
MECHANICAL
The Challenger MT345B features a robust 4x4 MFWD system, enhancing traction and stability across varied terrains, particularly beneficial for tillage and heavy-duty applications. Its hydrostatic power steering provides improved maneuverability, while the electro-hydraulic differential lock enables optimal wheel slip management, enhancing off-road capabilities. The 12-speed power shuttle transmission allows for smooth directional changes, making it suitable for operations requiring frequent speed adjustments, although the absence of a full cab may limit comfort in adverse weather conditions.
| Chassis | 4x2 2WD/4x4 MFWD 4WD |
| Differential lock | electro-hydraulic |
| Steering | hydrostatic power |
| Brakes | hydraulic wet disc |
| Cab | Two-post folding ROPS. Cab with air-conditioning optional. |
| Transmissions | 12-speed synchronized shuttle/12-speed power shuttle |
HYDRAULICS
| Type | open center |
| Pressure | 2755psi / 190.0bar |
| Rear valves | 2 or 3 |
| Mid valves | 0 or 2 |
| SCV flow | 15.8gpm / 59.8lpm |
| Total flow | 22.4gpm / 84.8lpm |
TRACTOR HITCH
| Rear Type | I/II |
| Control | position and draft control |
| Rear lift (at ends) | 5500lbs / 2494kg |
POWER TAKE-OFF (PTO)
| Rear PTO | independent |
| Clutch | electro-hydraulic |
| Rear RPM | 540/540/540E |
DIMENSIONS
| Wheelbase | 82.7inches / 210cm |
| Length | 148inches / 375cm |
| Width | 76inches / 193cm |
| Height (ROPS) | 105inches / 266cm |
| Height (cab) | 102.5inches / 260cm |
CHALLENGER MT345B WEIGHT
| 5,291lbs / 2399kg (2WD ROPS)/5,732lbs / 2600kg (4WD ROPS)/7,716lbs / 3499kg (4WD cab) |
DIMENSIONS & TIRES
The Challenger MT345B features a wheelbase of 82.7 inches, optimizing stability and maneuverability for various agricultural tasks. With a weight range of 5,291 to 7,716 pounds, it offers versatility for different attachments and implements, although operators may face challenges in transportation restrictions due to its heavier variants. This tractor is well-suited for medium-sized farms requiring efficient land management and precise handling in tighter spaces.
| Wheelbase | 82.7inches / 210cm |
| Weight | 5291 to 7716 pounds |
CHALLENGER ML72B LOADER
| Height (to pin) | 126inches / 320cm |
| Lift to full height (at 800mm) | 2090lbs / 948kg |
| Bucket width | 63inches / 160cm/73inches / 185cm/83inches / 210cm |
CHALLENGER ML92B LOADER
| Height (to pin) | 126inches / 320cm |
| Lift to full height (at 800mm) | 2530lbs / 1147kg |
ELECTRICAL
| Ground | negative |
| Charging system | alternator |
| Charging amps | 80 |
| Battery CCA | 675 |
| Battery volts | 12 |