Challenger MT685D - Horsepower, Weight, Specs, Problems, Price & More

The Challenger MT685D tractor is powered by a AGCO Power 8.4L 6-cyl diesel engine that provides of horsepower and torque. It has a drive configuration and a continuously variable transmission transmission.

• Engine
• Transmission
• Brakes
• Steering
• Common Problems
• What Users Like
• Technical Specifications

Engine

The engine is a 6-cylinder liquid-cooled AGCO Power turbocharged air-to-air intercooled diesel with a displacement of 513.8ci / 8.4L. It has a bore/stroke of 4.370x5.709inches / 111x 145 mm and a compression ratio of 16.7:1. The engine is equipped with electronic high-pressure common rail fuel system and thermostart pre-heating. It has a rated RPM of 2100 and a starter voltage of 12. The engine meets Interim Tier IV emission standards and uses selective catalytic reduction (SCR) for emission control. The gross power output is 340hp / 253.5kW and the maximum power output is 370hp / 275.9kW.

Transmission

The transmission is a continuously variable transmission (CVT) that provides infinite speed control. It allows for smooth and efficient power transfer to the wheels. The CVT transmission is known for its durability and low maintenance requirements. It also provides excellent fuel efficiency and reduces operator fatigue. The transmission is easy to operate and provides precise control over the tractor's speed and direction.

Brakes

The brakes are hydraulic wet disc brakes that provide reliable and consistent stopping power. They are located on all four wheels and are activated by a foot pedal. The brakes are durable and require minimal maintenance. The tractor also has an optional pneumatic or hydraulic trailer brake. The AGCO Power engine brake provides additional stopping power when needed. The brakes are responsive and provide excellent control over the tractor's speed.

Steering

The steering is hydrostatic power steering that provides smooth and precise control over the tractor's direction. It is easy to operate and requires minimal effort from the operator. The steering system is durable and reliable, and it provides excellent maneuverability in tight spaces. The AGCO Power 8.4L 6-cylinder diesel engine provides additional power to the steering system, ensuring that the tractor can handle heavy loads with ease. The steering system is also equipped with electro-hydraulic differential lock for improved traction.

Common Problems

Users have reported issues with the AGCOMMAND system, which can be difficult to set up and operate. Some users have also reported problems with the hydraulic system, particularly with leaks and low pressure. The OptiRide Plus hydraulic suspension system can also be problematic, with some users reporting issues with the system's durability and reliability. The tractor's cab can be noisy and uncomfortable, particularly during long hours of operation. Finally, some users have reported issues with the tractor's fuel efficiency, particularly when operating at high speeds or under heavy loads.

What Users Like

Users appreciate the tractor's smooth and efficient power transfer, thanks to the continuously variable transmission (CVT). The hydraulic system is also highly regarded, providing precise control over the tractor's implements. The tractor's hydrostatic power steering is easy to operate and provides excellent maneuverability. Users also appreciate the tractor's durable and reliable construction, which ensures that it can handle heavy loads with ease. Finally, users appreciate the tractor's comfortable and spacious cab, which is equipped with air conditioning and OptiRide Plus hydraulic suspension for a smooth ride.

Challenger MT685D Technical Specifications

Engine Detail
Description	AGCO Power turbocharged air-to-air intercooled diesel 6-cylinder liquid-cooled
Displacemen	513.8ci / 8.4L
Bore/strok	4.370x5.709inches / 111x 145 mm
Emission	Interim Tier IV
Emission Contro	selective catalytic reduction (SCR)
Power (gross	340hp / 253.5kW
Maximum Powe	370hp / 275.9kW
Fuel Syste	electronic high-pressure common rail
Pre-heatin	thermostart
Compressio	16.7:1
Rated Rp	2100
Starte	electric
Starter Volt	12
Engine
Description	AGCO Power 8.4L 6-cyl diesel
Transmission
Description	continuously variable transmission
Mechanical
Description	Four-wheel drive Hydraulic wet disc brakes Cab standard with air-conditioning and OptiRide Plus hydraulic suspension AGCO System 150 (optional); AGCOMMAND (optional)
Final Drive	inboard planetary
Differential Loc	electro-hydraulic
Steerin	hydrostatic power
Trailer Brake	pneumatic (optional)/hydraulic (optional)
Tires
Standard Tires (ag	Front: 480/70R34. Rear: 520/85R46
Dimensions And Tires
Wheelbas	122inches / 309cm
Weigh	24250lbs / 10999kg
Front Tir	480/70R34
Rear Tir	520/85R46
Capacity
Fue	167gal / 632.1L
Exhaust Fluid (def	16gal / 60.6L
Hydraulic Syste	29.1gal / 110.1L
Hydraulics
Typ	closed center load sensing (CCLS)
Capacit	29.1gal / 110.1L
Pressur	2900psi / 200.0bar
Valve	4 to 6
Scv Flo	26.4gpm / 99.9lpm
Total Flo	46gpm / 174.1lpm
Tractor Hitch
Rear Typ	Cat III
Rear Lif	22760lbs / 10323kg
Front Hitc	Cat III (optional)
Front Lift (at Ends	11000lbs / 4989kg
Drawba	Cat. 3/Cat. 3 Heavy-Duty (optional)/Cat. 4 (optional)
Electrical
Groun	negative
Charging Syste	alternator
Charging Amp	240
Batterie	2
Battery Volt	12
Power Take Off Pto
Rear Pt	independent
Clutc	electro-hydraulic
Rear Rp	1000 / 1000E (1.75)/540E/1000 / 1000E (optional)
Engine Rp	540E@1577 / 1000E@1605 / 1000@1970

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