Challenger MT485D Tractor

Manufacturer Challenger
Price -
Model MT485D
Equipment Type Utility Tractors
Factory

ENGINE DETAIL

The Challenger MT485D tractor features a robust AGCO Power 49AWI engine, delivering 135 hp and utilizing a selective catalytic reduction (SCR) system for emission compliance, which enhances efficiency and lowers NOx levels. Its electronic high-pressure common rail fuel system ensures optimal fuel atomization, providing improved performance and economy at rated RPMs of 2200. However, the complexity of the SCR system may lead to increased maintenance requirements, especially in regions with stringent emission regulations.

Description AGCO Power 49AWI turbocharged air-to-air intercooled diesel 4-cylinder 16-valve liquid-cooled
Displacemen 299ci / 4.9L
Bore/Strok 4.251x5.276inches / 108x 134 mm
Emission Interim Tier IV
Emission contro selective catalytic reduction (SCR)
Power (gross 135 hp (AutoPower IV)/100.7 kW/140hp / 104.4kW
Fuel syste electronic high pressure common rail
Air cleane dual dry element
Pre-heatin thermostart
Rated RP 2200
Starte electric
Starter volt 12

CHALLENGER MT485D ENGINE

The Challenger MT485D is powered by a robust AGCO Power 4.9L 4-cylinder diesel engine, which provides a balance of efficiency and power suitable for various agricultural tasks. With a fuel tank capacity of 64 gallons, it offers extended operational intervals, though the 9.2-gallon DEF capacity necessitates careful monitoring for compliance with emissions regulations. The main advantages include reduced downtime and improved longevity, while potential challenges may arise from the need for regular DEF refills in high-demand scenarios.

Description AGCO Power 4.9L 4-cyl diesel
Fuel tan 64gal / 242.2L
Exhaust fluid (DEF 9.2gal / 34.8L

TRANSMISSIONS OVERVIEW

The Challenger MT485D’s transmission options provide flexibility: the 16-speed four-speed power shift is suitable for varied field conditions, while the 24-speed six-speed power shift enhances load adaptability. The continuously variable transmission (CVT) offers seamless speed adjustments, improving fuel efficiency and operator comfort. However, potential challenges include higher complexity and maintenance costs associated with CVT systems compared to traditional transmissions.

Description 16-speed four speed power shift/24-speed six speed power shift/continuously variable transmission (CVT)

TRANSMISSION 1

The Challenger MT485D features the AutoPower IV transmission, providing seamless shifting through its four-speed power shift mechanism across 16 forward and reverse gears. This allows for precise control and efficiency in varying field conditions, making it advantageous for tasks requiring frequent speed adjustments. However, the wet disc clutch may necessitate careful maintenance to ensure longevity and optimal performance under heavy loads.

Transmissio AutoPower IV
Typ four speed power shift
Gear 16 forward and reverse
Clutc wet disc
Description Four power shift gears in four ranges.

TRANSMISSION 2

The Challenger MT485D features an AutoPower VI transmission with six-speed power shift capabilities, providing 24 forward and reverse gears. This setup allows for seamless gear changes, enhancing operational efficiency, particularly in demanding agricultural tasks or hilly terrain. However, the complexity of the power shift system may require specialized maintenance and operator training to maximize its potential and minimize downtime.

Transmissio AutoPower VI
Typ six speed power shift
Gear 24 forward and reverse
Description Six power shift gears in four ranges.

TRANSMISSION 3

The Challenger MT485D features a Techstar CVT, providing seamless transition between speeds without traditional gear shifts, enhancing operator comfort and efficiency during variable tasks. The infinite forward and reverse capability allows for precise control in both directions, beneficial for tasks requiring frequent direction changes, such as tillage or loading. However, CVTs may require more maintenance and can be more complex than standard transmissions, potentially leading to higher repair costs over time.

Transmissio Techstar CVT
Typ continuously variable transmission (CVT)
Gear infinite forward and reverse

CHALLENGER MT485D TRANSMISSIONS

The Challenger MT485D features a versatile transmission system with options for 16-speed four-speed powershift, 24-speed six-speed powershift, and continuously variable transmission (CVT), providing optimal power delivery and fuel efficiency for various agricultural tasks. The CVT offers seamless speed adjustments, enhancing operator comfort and productivity, especially in scenarios requiring precise speed control such as tillage or planting. However, the complexity of the transmission may pose challenges in maintenance and repair, requiring skilled technicians for servicing.

Description 16-speed four speed power shift/24-speed six speed power shift/continuously variable transmission (CVT)

MECHANICAL

The Challenger MT485D features a robust four-wheel drive system that enhances traction on varied terrains, making it ideal for heavy-duty agricultural tasks. Its wet disc brakes provide reliable stopping power, reducing wear and improving longevity, while the hydrostatic power steering offers precise maneuverability, crucial for navigating tight and complex landscapes. However, the added complexity of the hydrostatic system may result in higher maintenance costs compared to conventional steering systems.

Description Four-wheel drive/Wet disc brakes/Cab standard with air-conditioning.
Steerin hydrostatic power

HYDRAULICS

Typ closed center load sensing (CCLS)/open center optional
Valve 2 to 4
SCV flo 15 gpm (open center)/56.8 lpm/-unknown-/29 gpm (CCLS)/109.8 lpm

TRACTOR HITCH

Rear Typ III/II
Contro electronic lower link draft sensing
Rear lift (at 24 11400lbs / 5171kg
Drawba Cat. 2

POWER TAKE-OFF (PTO)

Rear PT independent
Rear RP 540/1000/540/540E / 1000/540/540E / 1000/1000E

DIMENSIONS & TIRES

The Challenger MT485D features a wheelbase of 105 inches (266 cm), which enhances its stability and maneuverability for various agricultural tasks. Weighing 12,500 lbs (5,670 kg), it provides a substantial ground presence and traction, making it suitable for heavy-duty applications. However, its weight may limit mobility on softer terrains, emphasizing the need for careful operational planning in muddy or uneven conditions.

Wheelbas 105inches / 266cm
Weigh 12500lbs / 5670kg

ELECTRICAL

Groun negative
Charging syste alternator
Charging amp 175/240 (2x 120)/350 (2x 175)
Batterie 2
Battery CC 600
Battery volt 12


Last Updated 2025-01-01
Stephen is a passionate tractor hobbyist with a deep-seated love for all things mechanized and agricultural. Growing up in a rural setting, he developed a fascination with these mighty machines that have played a crucial role in shaping the farming industry.

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