Challenger MT685C

The Challenger MT685C is a tractor produced by Challenger. It is equipped with a 512.6 ci 8.4 L engine. The listed engine power is Diesel (listed): 340 hp / 253.5 kW. Transmission: Dyna-VT. Operating weight: 24,250 lbs 10999 kg.

Engine Power

Diesel (listed): 340 hp / 253.5 kW

Fuel & Capacities

155.9 gal 590.1 L

Transmission

Dyna-VT

Operating Weight

24,250 lbs 10999 kg

Overview

	2009 - 2010 MT600C SeriesRow-Crop tractor MT600C Series Row-Crop tractor

Production
Manufacturer	Challenger (a part of AGCO)
Row-Crop tractor
Built in Beauvais, France

Challenger MT685C Engine
AGCO SISU POWER 8.4L 6-cyl diesel
Fuel tank	155.9 gal 590.1 L
	182.3 gal (without e3) 690.0 L
Exhaust fluid (DEF)	7.9 gal 29.9 L
Engine details ...

Challenger MT685C Transmission
continuously-variable transmission
Transmission details ...

Challenger MT685C Power
Engine	340 hp 253.5 kW
PTO (claimed)	320 hp 238.6 kW

Mechanical
Four-wheel drive
Power steering
Hydraulic wet disc brakes
Cab standard with heat and air-conditioning. Optional heated seat, power adjustable mirrors, and automatic temperature control.

Hydraulics
Type	closed center load sensing
Pressure	2,901 psi 200.0 bar
Valves	4 to 6
Pump flow	26.4 gpm 99.9 lpm
Total flow	46.2 gpm 174.9 lpm

Tractor hitch
Rear Type	III, IV
Rear lift (at ends)	26,460 lbs 12002 kg
Rear lift (at 24"/610mm)	21,336 lbs 9678 kg
Front Hitch	III
Front lift (at ends)	11,020 lbs 4998 kg

Power Take-off (PTO)
Rear PTO	independent
Clutch	electro-hydraulic
Rear PTO Type	1000E/1000 (1.75)
	540E/1000 (1.375)OptOptional
Front PTO	independent OptOptional
Front PTO Type	1000 (1.375)

Dimensions & Tires
Wheelbase	122.2 inches 310 cm
Weight	24,250 lbs 10999 kg
Front tire	480/70R34
Rear tire	520/85R46
Full dimensions and tires ...

Electrical
Ground	negative
Charging system	alternator
Charging amps	240 *Two 120A alternators.
Batteries	2
Battery CCA	775
Battery volts	12

Engine

Engine Detail — 512.6 ci / 8.4 L Diesel

Manufacturer	AGCO SISU POWER 84CTA
Configuration	turbocharged intercooled diesel, 6-cylinder, liquid-cooled
The engine uses AGCO's e3 selective catalytic reduction (SCR) system to reduce nitrogen oxides (NOx). The system uses a diesel exhaust fluid that is injected into the exhaust gas.
Displacement	512.6 ci 8.4 L
Bore/Stroke	4.37x5.71 inches 111 x 145 mm
Emissions	Interim Tier 4
Emission control	selective catalytic reduction (SCR)
Power	340 hp 253.5 kW
Maximum Power	370 hp 275.9 kW
Compression	16.7:1
Rated RPM	2200
Torque	1136 lb-ft 1540.4 Nm
Torque RPM	1500
Starter type	electric

Transmission

Transmission — Dyna-VT

Transmission	Dyna-VT
Type	continuously-variable transmission
Gears	infinite forward and reverse

Dimensions

Challenger MT685C Tires
Ag front	480/70R34
Ag rear	520/85R46

Dimensions
Wheelbase	122.2 inches 310 cm
Length	223.2 inches 566 cm
Height (cab)	133.1 inches 338 cm
Shipping weight	24,250 lbs 10999 kg
Max weight	38,890 lbs 17640 kg

Photos

Challenger MT685C tractor photo

Recommended Implements & Sizing Guide

Engineering recommendations for Challenger MT685C based on its 340 HP power envelope and ASAE agricultural standards.

Implement & Operation	Recommended Size	Workload Rating	Engineering Notes
Moldboard PlowPrimary Tillage	8+ Bottom On-Land Hitch8+ 铧重型机外牵引犁	Commercial / Field Scale	High horsepower articulated/4WD field plowing.
Rotary Cutter / MowerMowing & Clearing	15 to 20 ft Batwing4.6 - 6.1 m 宽幅折叠翼	Commercial / Field Scale	Large commercial field and roadside mowing operations.
Rotary TillerSeedbed Prep	90 to 120 in Heavy Duty230 - 300 cm 重型旋耕机	Commercial / Field Scale	Deep intensive seedbed preparation for commercial row crops.
Disc HarrowSecondary Tillage	24 to 36 ft Heavy Duty Field Disc7.3 - 11.0 m 超宽重型整地耙	Commercial / Field Scale	Broad-acre grain tillage for high-drawbar tractors.
Hay BalerHay & Forage	Large Square Baler (3x4 or 4x4)大方捆商用打捆机 (1.2x1.2 m)	Commercial / Field Scale	High-capacity commercial forage harvesting (1000 RPM PTO).

Sizing & Soil Condition NoteActual implement sizing varies depending on local soil conditions (heavy clay vs sandy loam), field slope, and operating speed. Heavy tillage implements may require front ballast weights and wheel weights.

Fluids, Capacities & Working Autonomy

Standard fluid requirements, service intervals, and continuous runtime estimates for Challenger MT685C.

Estimated Continuous Field Runtime: 8.8 hrs

Approximately 8.8 hours of continuous field operation at ~75% rated power on a full tank (155.9 gal / 590.1 L).

Estimated 75% Load Fuel Burn~17.7 gal/hr (66.9 L/hr)

Engine Crankcase Oil

SAE 15W-40 (Heavy Duty Diesel)

Standard Spec: API CK-4 / CJ-4 Heavy Duty

Service Interval: 150 – 250 Hours

Transmission & Hydraulic System

UTTO (Universal Tractor Transmission Oil)

Standard Spec: ISO VG 46 / 68 (Wet Brake & Trans Compatible)

Service Interval: 600 – 1000 Hours

Engine Cooling System

50/50 Ethylene Glycol Pre-mix

Standard Spec: ASTM D6210 / Heavy-Duty OAT Antifreeze

Service Interval: 2 Years / 1500 Hours