| Manufacturer | Challenger |
| Price | - |
| Model | MT545B |
| Equipment Type | Row-Crop Tractors |
| Factory | Beauvais, France |
ENGINE DETAIL
The Challenger MT545B tractor is powered by a robust Caterpillar 3056C turbocharged diesel engine, producing 143hp at a rated RPM of 2200, making it suitable for medium-duty agricultural tasks. Its 6.0L displacement combined with a high compression ratio of 17.5:1 enhances torque and fuel efficiency but may pose challenges related to emissions, as it complies only with Tier II standards. The viscous fan cooling system promotes optimal thermal management, yet the 15.3-quart oil capacity necessitates regular maintenance to ensure longevity and performance under sustained loads.
| Description | Caterpillar 3056C turbocharged diesel 6-cylinder liquid-cooled vertical inline |
| Displacemen | 365.2ci / 6.0L |
| Bore/Strok | 3.937x5.00inches / 100x 127 mm |
| Emission | Tier II |
| Powe | 143hp / 106.6kW |
| Cooling syste | viscous fan |
| Air cleane | dual paper elements |
| Compressio | 17.5:1 |
| Rated RP | 2200 |
| Idle RP | 800-2350 |
| Starter volt | 12 |
| Oil capacit | 15.3qts / 14.5L |
| Coolant capacit | 26.92qts / 25.5L |
CHALLENGER MT545B ENGINE
The Challenger MT545B is equipped with a Caterpillar 6.0L 6-cylinder diesel engine, known for its robust torque delivery and fuel efficiency. Its powertrain is optimized for various agricultural tasks, providing excellent performance in field conditions. However, maintenance costs may be higher due to the specialized Caterpillar components, requiring skilled technicians for optimal servicing.
| Description | Caterpillar 6.0L 6-cyl diesel |
TRANSMISSIONS OVERVIEW
The Challenger MT545B features a 32-speed partial power shift transmission, allowing precise control over speed and torque, enhancing productivity in varied field applications. Its 24-speed continuously variable transmission offers seamless gear changes, optimizing fuel efficiency and traction during operation. However, the complexity of these transmission systems may require specialized training for operators to maximize performance and minimize maintenance challenges.
| Description | 32-speed partial power shift 24-speed partial power shift continuously variable transmission |
TRANSMISSION 1
The Challenger MT545B features an AutoPower IV transmission with 32 total gears, providing versatility for various field conditions. The partial power shift system, complemented by four synchronized gears and two ranges, allows for smooth transitions and improved operational efficiency, ideal for tasks requiring both power and precision. However, the hydraulic wet disc clutch system necessitates regular maintenance to ensure optimal performance and longevity, which could be a consideration for cost management.
| Transmissio | AutoPower IV |
| Typ | partial power shift |
| Gear | 32 forward and reverse |
| Clutc | hydraulic wet disc |
| Description | Four synchronized gears (1-4) in two synchronized ranges (low/high) with a four-speed (A-D) power shift on the left-hand power shuttle lever. |
SPEEDS 1
| Description | With 20.8R38 rear tires |
TRANSMISSION 2
The Challenger MT545B tractor features the AutoPower VI transmission, a partial power shift system with 24 forward and reverse gears, offering versatility in various operational scenarios. This design allows for optimal power delivery and enhanced torque management, beneficial for tasks requiring precise speed adjustments, such as plowing or ground preparation. However, operators should be adept at managing gear shifts to maximize efficiency, as improper use may lead to increased wear on the transmission components.
| Transmissio | AutoPower VI |
| Typ | partial power shift |
| Gear | 24 forward and reverse |
| Description | Four gears with six power shift ranges. The AutoPower VI became acailable in 2005. |
TRANSMISSION 3
The Challenger MT545B tractor features a TechStar continuously variable transmission (CVT), providing smooth and infinite gear selection for optimized power delivery and efficiency. With an oil capacity of 59.2 quarts (56.0 liters), it supports extended operation with reduced maintenance needs. This CVT system excels in applications requiring variable speeds, such as tillage or planting, but may involve higher initial costs compared to traditional gear systems.
| Transmissio | TechStar CVT |
| Typ | continuously variable transmission |
| Gear | infinite forward and reverse (2-range) |
| Oil capacit | 59.2qts / 56.0L |
SPEEDS 2
| Description | 50 KPH speeds available with front-axle suspension./ |
CHALLENGER MT545B TRANSMISSIONS
The Challenger MT545B features a versatile 32-speed partial power shift transmission, which provides precise control over speed and torque, enhancing efficiency during field operations. Additionally, the 24-speed partial power shift continuously variable transmission allows for seamless speed adjustments, optimizing performance in varied terrain. The key advantage of these transmission systems is improved productivity and reduced operator fatigue, particularly in applications requiring frequent speed changes.
| Description | 32-speed partial power shift 24-speed partial power shift continuously variable transmission |
MECHANICAL
The Challenger MT545B tractor features a robust design with both two- or four-wheel drive capabilities, which enhances traction in varying field conditions. Its hydrostatic power steering improves maneuverability, while the hydraulic wet disc brakes provide excellent stopping power, ensuring safety during operations. Optional pneumatic cab suspension and automatic climate control enhance operator comfort, making it suitable for long hours of operation, but could increase maintenance complexity and cost.
| Description | Two- or four-wheel drive Power steering Hydraulic wet disc brakes Cab standard with heat and A/C. Optional pneumatic cab suspension and automatic climate control |
| Final drive | inboard planetary |
| Differential loc | electro-hydraulic front and rear |
| Trailer brake | hydraulic OptOptional |
CAPACITY
| Fue | 71gal / 268.7L |
| Hydraulic syste | 18.5 gal (AutoPower)/70.0 L/26.4 gal (CVT)/99.9 L |
HYDRAULICS
| Typ | closed center pressure flow compensating (PFC) |
| Capacit | 18.5 gal (AutoPower)/70.0 L/26.4 gal (CVT)/99.9 L |
| Pressur | 2900psi / 200.0bar |
| Rear valve | 2 to 4 |
| Total flo | 29gpm / 109.8lpm |
TRACTOR HITCH
| Rear Typ | II/III |
| Rear lift (at 24 | 9,391lbs / 4259kg/11,200 lbs (CVT)/5080 kg |
| Front Hitc | optional |
| Front lif | 5,500lbs / 2494kg |
POWER TAKE-OFF (PTO)
| Rear PT | independent |
| Clutc | electro-hydraulic wet disc |
| Rear RP | 540/1000 (standard)/540/540E / 1000OptOptional |
| Engine RP | 540@1980 / 540E@1533 / 1000@2000 / 1000E@1548 |
CHALLENGER MT545B TIRES
The Challenger MT545B tractor features a 2WD configuration with an Ag front tire size of 11.00-16 and rear tires of 580/70R38, providing a solid balance between traction and stability in field operations. The wide rear tires enhance flotation on softer soils, which can be advantageous for reducing soil compaction during heavy tillage or harvesting. However, the 2WD system may limit performance in muddy conditions compared to a 4WD setup, necessitating careful field planning based on soil moisture and terrain.
| Ag fron | 11.00-16 (2WD)/480/70R28 |
| Ag rea | 580/70R38 |
DIMENSIONS & TIRES
The Challenger MT545B features a wheelbase of 112.1 inches, enhancing stability during heavy-duty tasks. Weighing between 11,052 to 14,835 pounds, it provides significant traction, though operators should monitor weight distribution for optimal performance and fuel efficiency. With front tires sized 11.00-16 and rear tires 580/70R38, it excels in various field conditions but may require adjustments for uneven terrain handling.
| Wheelbas | 112.1inches / 284cm |
| Weigh | 11052 to 14835 pounds |
| Front tir | 11.00-16 |
| Rear tir | 580/70R38 |
ELECTRICAL
| Groun | negative |
| Charging syste | alternator |
| Charging amp | 120 |
| Batterie | 2 |
| Battery CC | 420 |
| Battery volt | 12 |