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Challenger MT285B

Challenger MT285B tractor
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The Challenger MT285B is a compact utility tractor built by Iseki and distributed by Challenger (a part of AGCO) from 2005 to 2008. It features a 2.2L 4-cylinder liquid-cooled diesel engine producing 47.5 hp gross and 44.5 hp net. The tractor offers multiple transmission options including hydrostatic, 8-speed SynchroShuttle, and 12-speed partially synchronized PowerShuttle. It has four-wheel drive with mechanical rear differential lock, power steering, and wet disc brakes. The hydraulic system is open center with 10 gal capacity and optional rear and mid valves. The tractor hitch is category I with position and response control and optional top-link draft control. PTO options include independent rear and optional mid PTO. The MT285B has a wheelbase of 76 inches, weighs 3660 lbs, and supports various tire options for agricultural, lawn/turf, and industrial use. Attachments include front-end loaders and backhoes with detailed specifications for the ML40B loader and MH30B backhoe.
Challenger MT285BtractorspecificationsIsekicompact utility tractorenginetransmissionhydraulicsPTOdimensionsattachments
Power47 hp
Founded2005 - 2008
ModelMT285B

Technical Specifications

Detailed specifications and technical data for Challenger MT285B

Power

Engine (net):44.5 hp (33.2 kW)
Engine (gross):47.5 hp (35.4 kW)
Gear PTO (claimed):38.0 hp (28.3 kW)
Hydro PTO (claimed):36.5 hp (27.2 kW)

Tires

Ag rear:16.9-24
Ag front:9.5-16
Lawn/turf rear:44x18.00-20
Industrial rear:17.5L-24
Lawn/turf front:27x10.50-15
Industrial front:10-16.5

Engine

Type:diesel
Model:Iseki E4CG
Cooling:liquid-cooled
Cylinders:4-cylinder
Rated RPM:2600
Air cleaner:dry
Bore/Stroke:3.43x3.64 inches (87 x 92 mm)
Compression:21.8:1
Fuel system:indirect injection
Power (net):44.5 hp (33.2 kW)
Pre-heating:glow plugs
Displacement:134.1 ci (2.2 L)
Oil capacity:8.5 qts (8.0 L)
Operating RPM:1010-2860
Power (gross):47.5 hp (35.4 kW)
Starter volts:12
Coolant capacity:8 qts (7.6 L)

Weight

Weight:3660 lbs (1660 kg)
Max capacity:8378 lbs (3800 kg)
Max rear axle:4630 lbs (2100 kg)
Max front axle:4630 lbs (2100 kg)

Capacity

Fuel:13.2 gal (50.0 L)
Hydraulic system:10 gal (37.9 L)

Variants

1547:similar Massey Ferguson model

Dimensions

Width:65.4 inches (Minimum width) (166 cm)
Length:132.7 inches (337 cm)
Wheelbase:76 inches (193 cm)
Height (ROPS):89.1 inches (226 cm)
Ground clearance:14.8 inches (37 cm)

Electrical

Ground:negative
Battery CCA:710
Battery volts:12
Charging amps:40
Charging system:alternator

Hydraulics

Type:open center
Capacity:10 gal (37.9 L)
Pressure:2276 psi (156.9 bar)
Pump flow:10.5 gpm (39.7 lpm)
Mid valves:2 Optional
Total flow:14.9 gpm (sync shuttle) (56.4 lpm), 15.9 gpm (power shuttle/hydro) (60.2 lpm)
Rear valves:2 Optional
Steering flow:4.4 gpm (sync shuttle) (16.7 lpm), 5.4 gpm (power shuttle/hydro) (20.4 lpm)
Steering pressure:2276 psi (156.9 bar)

Mechanical

ROPS:Two-post foldable ROPS. Cab optional with air-condtioning.
Drive:Four-wheel drive
Brakes:Wet disc brakes
Final drives:spur gear
Power steering:Yes
Differential lock:mechanical rear

Production

Type:Compact Utility tractor
Series:MT200B Series
Built in:Matsuyama, Japan
Distributor:Challenger (a part of AGCO)
Manufacturer:Iseki
Production years:2005 - 2008

Attachments

Overview:Front-end loader, Backhoe

ML40B Loader

Dump time:1.1s
Dump angle:47°
Lower time:2.9s
Raise time:4.5s
Bucket width:72 inches (182 cm)
Rollback time:3.3s
Reach (dumped):22 inches (55 cm)
Reach (ground):75 inches (190 cm)
Rollback angle:30°
Height (at pin):114.5 inches (290 cm)
Clearance (dumped):84 inches (213 cm)
Breakout force (at pin):3252 lbs (1475 kg)
Lift capacity (full at pin):2500 lbs (1134 kg)
Lift capacity (1.5m at 500mm):2249 lbs (1020 kg)
Lift capacity (full at 500mm):1921 lbs (871 kg)

Challenger MH30B Backhoe

Backhoe type:Challenger MH30B Backhoe
Bucket widths:10 inches (25 cm), 12 inches (30 cm), 16 inches (40 cm), 24 inches (60 cm)
Transport height:81.5 inches (207 cm)

Transmission

Options:hydrostatic, 8-speed, 12-speed partially synchronized with power shuttle

Hydrostatic

Type:hydrostatic
Gears:infinite forward and reverse (3-range)
Oil capacity:40.2 qts (38.0 L)

PowerShuttle

Type:partially synchronized with power shuttle
Gears:12 forward and reverse
Clutch:dry main, wet shuttle
Description:Three ranges with four gears each. Transmission can be shifted from forward to reverse on the go, without the clutch. In-range gear changes can be made on the go with the clutch.
Oil capacity:40.2 qts (38.0 L)
Transmission:PowerShuttle

SynchroShuttle

Gears:8 forward and reverse
Clutch:mechanical dry disc
Description:Four non-synchronized gears in two non-synchronized ranges, with synchronized shuttle shift.
Oil capacity:40.2 qts (38.0 L)
Transmission:SynchroShuttle

Tractor hitch

Control:position and response control, optional top-link draft control
Rear Arms:telescopic link ends
Rear Type:I
Rear lift (at ends):3483 lbs (1579 kg)
Rear lift (at 24"/610mm):3086 lbs (1399 kg)

Power Take-off (PTO)

Clutch:electro-hydraulic wet disc
Mid PTO:independent Optional
Rear PTO:independent
Mid PTO Type:2000 (1.00)
Rear PTO Type:540 (1.375)

Related Models

Challenger MT275B

Model:MT275B

Challenger MT295B

Model:MT295B

Challenger MT285

Model:MT285