| Manufacturer | Challenger |
| Price | - |
| Model | MT635B |
| Equipment Type | Row-Crop Tractors |
| Factory | Beauvais, France |
ENGINE DETAIL
The Challenger MT635B features a robust Sisu 74ETA turbocharged diesel engine, delivering 215 hp at a rated RPM of 2200, making it suitable for heavy-duty agricultural tasks. With a significant oil capacity of 20 quarts and a coolant capacity of 35.6 quarts, it is designed for prolonged operation and efficient thermal management, although the relatively high compression ratio of 17.5:1 may require high-quality fuel and precise tuning for optimal performance. The optional 1000W coolant heater enhances cold-start capability, making this tractor advantageous in colder climates, yet it increases energy consumption when utilized.
| Description | Sisu 74ETA turbocharged diesel 6-cylinder 24-valve liquid-cooled vertical inline |
| Displacemen | 449ci / 7.4L |
| Bore/Strok | 4.251x5.278inches / 108x 134 mm |
| Powe | 215hp / 160.3kW |
| Air cleane | dual paper elements |
| Pre-heatin | 1000W coolant heater OptOptional |
| Compressio | 17.5:1 |
| Rated RP | 2200 |
| Starter volt | 12 |
| Oil capacit | 20qts / 18.9L |
| Coolant capacit | 35.6qts / 33.7L |
CHALLENGER MT635B ENGINE
The Challenger MT635B is powered by a Sisu 7.4L 6-cylinder diesel engine, providing robust torque and efficiency for heavy-duty applications. Its advanced engine design enhances fuel economy while minimizing emissions, making it a suitable choice for environmentally-conscious farming operations. However, the engine's size may lead to challenges in maneuverability within tighter field conditions, requiring careful planning of operational strategies.
| Description | Sisu 7.4L 6-cyl diesel |
TRANSMISSION
The Challenger MT635B tractor features a TechStar continuously variable transmission (CVT), providing seamless power delivery with infinite forward and reverse speed options, which enhances operational efficiency and ease of use for diverse agricultural tasks. With an oil capacity of 70.8 quarts (67.0 liters), it ensures optimal lubrication and cooling of transmission components, critical for extended use and reliability. However, maintenance can be more complex and costly than traditional gear transmissions, necessitating diligent service intervals to prevent potential issues.
| Transmissio | TechStar |
| Typ | continuously variable transmission (CVT) |
| Gear | infinite forward and reverse (2-range) |
| Oil capacit | 70.8qts / 67.0L |
CHALLENGER MT635B TRANSMISSION
The Challenger MT635B tractor features a continuously variable transmission (CVT), which allows for seamless speed adjustments and improved fuel efficiency by eliminating discrete gear shifts. This results in enhanced operator comfort and productivity, particularly in applications requiring variable speed, such as tillage and planting. However, maintenance costs may be higher due to the complexity of CVT systems, which could be a consideration for budget-conscious operators.
| Description | continuously variable transmission (CVT) |
MECHANICAL
The Challenger MT635B features a robust inboard planetary final drive which enhances durability and off-road capability, making it ideal for tough agricultural tasks. The electrohydraulic differential lock offers improved traction in varied terrain, though it may require more maintenance than conventional systems. Additional luxury options like pneumatic cab suspension and automatic climate control provide comfort in extended operations but may increase overall cost and complexity.
| Description | 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 | electrohydraulic front and rear |
| Trailer brake | hydraulic OptOptional |
CAPACITY
| Fue | 159gal / 601.8L |
| Hydraulic syste | 26.4gal / 99.9L |
HYDRAULICS
| Typ | pressure flow compensated (PFC) |
| Capacit | 26.4gal / 99.9L |
| Pressur | 2900psi / 200.0bar |
| Valve | 4 to 6 |
| Total flo | 39gpm / 147.6lpm |
TRACTOR HITCH
| Rear Typ | III |
| Rear lift (at 24 | 15,600lbs / 7076kg |
| Front Hitc | II OptOptional |
| Front lif | 7,700lbs / 3492kg/12,100lbsOptOptional / 5488kg |
POWER TAKE-OFF (PTO)
| Rear PT | independent |
| Clutc | electro-hydraulic wet disc |
| Rear RP | 540 (1.375)/540/540E OptOptional/1000 (1.375)/1000 (1.75) |
| Engine RP | 540@2037 / 540E@ 1598 / 1000@2031 |
CHALLENGER MT635B TIRES
The Challenger MT635B tractor features a front tire size of 380/85R34 and a rear tire size of 480/80R46, optimizing traction and stability for various agricultural applications. The larger rear tires improve soil compaction management and provide enhanced power transfer, while the front tires ensure responsive steering and maneuverability. Consideration should be given to field conditions and equipment compatibility, as tire size can affect turning radius and overall performance.
| Ag fron | 380/85R34 |
| Ag rea | 480/80R46 |
DIMENSIONS & TIRES
The Challenger MT635B features a substantial wheelbase of 121.1 inches, providing stability and support for heavy-duty tasks, ideal for row crop applications. With a weight range of 18,308 to 19,595 pounds, it offers excellent traction and reduced ground pressure, enhancing performance in varied soil conditions but could present challenges in compacted environments. The tire specifications (front 380/85R34 and rear 480/80R46) optimize flotation and can be advantageous for maneuvering in softer terrain while using larger implements, necessitating regular monitoring for wear and soil compaction.
| Wheelbas | 121.1inches / 307cm |
| Weigh | 18308 to 19595 pounds |
| Front tir | 380/85R34 |
| Rear tir | 480/80R46 |
ELECTRICAL
| Groun | negative |
| Charging syste | alternator |
| Charging amp | 150 |
| Batterie | 2 |
| Battery CC | 775 |
| Battery volt | 12 |