Challenger MT285

The Challenger MT285 is a tractor produced by Challenger. It is equipped with a 91.4 ci 1.5 L engine. The listed engine power is Diesel (gross): 40.1 hp / 29.9 kW. Transmission: infinite forward and reverse (3-range). Operating weight: 3,174 lbs 1439 kg.

Engine Power

Diesel (gross): 40.1 hp / 29.9 kW

Fuel & Capacities

7.9 gal 29.9 L

Transmission

infinite forward and reverse (3-range)

Operating Weight

3,174 lbs 1439 kg

Overview

	2003 - 2005 MT200 SeriesCompact Utility tractorIseki built MT200 Series Compact Utility tractor Iseki built

Production
Distributor	Challenger (a part of AGCO)
Manufacturer	Iseki
Compact Utility tractor
Built in Matsuyama, Japan

Variants
1440	similar Massey Ferguson model

Challenger MT285 Engine
Iseki 1.5L 3-cyl diesel
Fuel tank	7.9 gal 29.9 L
Engine details ...

Challenger MT285 Power
Engine (gross)	40.1 hp 29.9 kW
Gear PTO (claimed)	32.4 hp 24.2 kW
Hydro PTO (claimed)	31.7 hp 23.6 kW

Mechanical
Four-wheel drive
Differential lock	mechanical rear
Power steering
Wet disc brakes
Two-post folding ROPS.

Hydraulics
Type	open center
Pressure	2130 psi 146.9 bar
Pump flow	7.7 gpm 29.1 lpm
Total flow	12.2 gpm (gear) 46.2 lpm
	9.6 gpm (hydro) 36.3 lpm
Steering flow	4.5 gpm 17.0 lpm

Tractor hitch
Rear Type	I
Control	position control
	draft control OptOptional
Rear lift (at ends)	2,755 lbs (gear) 1249 kg
	2,866 lbs (hydro) 1300 kg
Rear lift (at 24"/610mm)	2,100 lbs (gear) 952 kg
	1,940 lbs (hydro) 879 kg

Power Take-off (PTO)
Rear PTO	independent
Clutch	wet disc
Rear PTO Type	540 (1.375)
Mid PTO	independent OptOptional
Mid PTO Type	2000

Dimensions & Tires
Wheelbase	68.5 inches 173 cm
Weight	3,174 lbs 1439 kg
Front tire	8-16
Rear tire	13.6-24
Full dimensions and tires ...

Electrical
Ground	negative
Charging system	alternator
Battery volts	12

References

MT200 - Serious Machines with big tractor performance published in 2002, by AGCO

Engine

Engine Detail — 91.4 ci / 1.5 L Diesel

Manufacturer	Iseki
Configuration	turbocharged diesel, 3-cylinder, liquid-cooled
Displacement	91.4 ci 1.5 L
Bore/Stroke	3.43x3.30 inches 87 x 84 mm
Power (gross)	40.1 hp 29.9 kW
Rated RPM	2600
Starter	electric
Starter volts	12

Transmission

Transmission options
16-speed power shuttle
hydrostatic

Transmission — 16 forward and reverse power shuttle

Type	power shuttle
Gears	16 forward and reverse
Four synchronized gears (1-4) in four ranges with power shuttle.

Transmission — infinite forward and reverse (3-range) hydrostatic

Type	hydrostatic
Gears	infinite forward and reverse (3-range)

Dimensions

Challenger MT285 Tires
Standard tires (ag)	Front: 8-16. Rear: 13.6-24
Lawn/turf front	212/80D-15
Lawn/turf rear	355/80D-20
Lawn/turf front	305R343
Lawn/turf rear	610R470
Industrial front	25x8.50-14
Industrial rear	15-19.5
Industrial front	10-16.5
Industrial rear	14.9-24

Dimensions
Wheelbase	68.5 inches 173 cm
Length	121.5 inches 308 cm
Width	60.6 inches 153 cm
Height (ROPS)	93.2 inches 236 cm
Height (Folded ROPS)	70.8 inches 179 cm
Weight	3,174 lbs 1439 kg
Front tread	44 inches 111 cm
Rear tread	45 to 56.8 inches 114 to 144 cm

Attachments

Attachment overview
72" mid-mount mower deck
Snowblower
Blade
Front-end loader
Backhoe

72" Mower deck
Type	mid-mount Challenger MG716
	3-blade
Cutting width	72 inches 182 cm

Challenger MH20 Backhoe
Backhoe type	Challenger MH20 Backhoe
Transport height	72.8 inches 184 cm
Bucket width	10 inches 25 cm
	12 inches 30 cm
	16 inches 40 cm
	24 inches 60 cm
	37 inches 93 cm
2-Foot flat digging depth	96 inches 243 cm
Reach from pivot	112.2 inches 284 cm
Bucket Rotation	165°
Swing Arc	180°

Photos

Challenger MT285

Recommended Implements & Sizing Guide

Engineering recommendations for Challenger MT285 based on its 40.1 HP power envelope and ASAE agricultural standards.

Implement & Operation	Recommended Size	Workload Rating	Engineering Notes
Moldboard PlowPrimary Tillage	2 to 3 Bottom (14-16")2 - 3 铧 (35-40 cm)	Medium Duty	Standard utility farm tillage.
Rotary Cutter / MowerMowing & Clearing	6 ft (72 in)1.8 m	Medium Duty	Medium pasture clearing; rear slip-clutch recommended.
Rotary TillerSeedbed Prep	66 to 72 in165 - 180 cm	Medium Duty	Standard utility tiller; slip clutch protection required.
Disc HarrowSecondary Tillage	7 to 8 ft Tandem Disc2.1 - 2.4 m 对开双排耙	Medium Duty	Field leveling and clod breaking behind plows.
Hay BalerHay & Forage	Small Square Baler (14x18")小方捆打捆机 (36x46 cm)	Medium Duty	Classic 2-string baler for horse and small livestock hay.

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 MT285.

Estimated Continuous Field Runtime: 3.8 hrs

Approximately 3.8 hours of continuous field operation at ~75% rated power on a full tank (7.9 gal / 29.9 L).

Estimated 75% Load Fuel Burn~2.1 gal/hr (7.9 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