Challenger MT255B: all source data
All 101 values recorded for this model, as the source lists them and in its units. The spec sheet shows the same data checked, typed and converted.
Overview
Production| Distributor | Challenger (a part of AGCO) |
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| Manufacturer | Iseki |
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| (no label) | Compact Utility tractor |
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| (no label) | Built in Matsuyama, Japan |
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Engine| (no label) | Iseki 1.5L 3-cyl diesel |
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Transmission| (no label) | hydrostatic |
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| (no label) | 9-speed gear |
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Power| Engine (gross) | 28.4 hp | 21.2 kW |
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| Engine (net) | 28 hp | 20.9 kW |
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| Gear PTO (claimed) | 24.2 hp | 18.0 kW |
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| Hydro PTO (claimed) | 22.3 hp | 16.6 kW |
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Mechanical| (no label) | Four-wheel drive |
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| Final drives | spur gear |
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| Differential lock | mechanical rear |
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| (no label) | Power steering |
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| (no label) | Wet disc brakes |
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| (no label) | Two-post foldable ROPS |
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Capacity| Fuel | 7.9 gal | 29.9 L |
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| Gear Hydraulic system (Gear) | 4.8 gal | 18.2 L |
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| Hydro Hydraulic system (Hydro) | 7.7 gal | 29.1 L |
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Hydraulics| Type | open center |
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| Gear Capacity (Gear) | 4.8 gal | 18.2 L |
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| Hydro Capacity (Hydro) | 7.7 gal | 29.1 L |
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| Pressure | 2134 psi | 147.1 bar |
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| Rear valves | 2 |
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| Mid valves | 2 |
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| Pump flow | 7.4 gpm | 28.0 lpm |
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| Total flow | 10.0 gpm | 37.9 lpm |
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| Steering flow | 2.6 gpm | 9.8 lpm |
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| Steering press. | 1711 psi | 118.0 bar |
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Hitch| Rear Type | I |
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| Control | position and response control |
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| Control | top-link draft control |
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| Rear lift (at ends) | 2425 lbs | 1099 kg |
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| Rear lift (at 24"/610mm) | 1610 lbs | 730 kg |
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| Rear Arms | fixed link ends |
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Pto| Gear Rear PTO | live |
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| Hydro Rear PTO | independent |
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| Gear Clutch | dry disc |
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| Hydro Clutch | electro-hydraulic wet disc |
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| Rear PTO Type | 540 (1.375) |
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| Gear Mid PTO | live |
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| Hydro Mid PTO | independent |
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| Gear Clutch | dry disc |
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| Hydro Clutch | electro-hydraulic wet disc |
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| Mid PTO Type | 2000 (1.00) |
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Dimensions| Wheelbase | 65.5 inches | 166 cm |
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| Weight | 2370 to 2423 pounds |
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| Front tire | 7-14 |
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| Rear tire | 9.5-24 |
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Electrical| Ground | negative |
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| Charging system | alternator |
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| Charging amps | 40 |
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| Battery CCA | 582 |
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| Battery volts | 12 |
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Engine
Engine detail| (no label) | Iseki E3CF |
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| (no label) | diesel |
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| (no label) | 3-cylinder |
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| (no label) | liquid-cooled |
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| Displacement | 89.3 ci | 1.5 L |
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| Bore/Stroke | 3.39x3.30 inches | 86 x 84 mm |
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| Power (net) | 28 hp | 20.9 kW |
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| Power (gross) | 28.4 hp | 21.2 kW |
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| Fuel system | indirect injection |
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| Air cleaner | dual-stage dry |
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| Pre-heating | glow plugs |
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| Rated RPM | 2500 |
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| Idle RPM | 930-2750 |
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| Starter volts | 12 |
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| Oil capacity | 3.8 qts | 3.6 L |
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| Coolant capacity (Coolant) | 5.8 qts | 5.5 L |
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Transmission
Transmission options| (no label) | hydrostatic |
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| (no label) | 9-speed gear |
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Transmission| Type | hydrostatic |
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| Gears | infinite forward and reverse (3-range) |
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| Oil capacity | 30.6 qts | 29.0 L |
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| Type | gear |
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| Gears | 9 forward and 3 reverse |
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| Clutch | dry dual stage |
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| Oil capacity | 19 qts | 18.0 L |
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| (no label) | Three non-synchronized gears (1-3), plus reverse (R) in three non-synchronized ranges. |
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Dimensions
Tires| Ag front | 7-14 |
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| Ag rear | 9.5-24 |
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| Lawn/turf front | 24x8.50-14 |
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| Lawn/turf rear | 36x13.50-15 |
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| Industrial front | 25x8.50-14 |
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| Industrial rear | 12.50/80-18 |
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Dimensions| Wheelbase | 65.5 inches | 166 cm |
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| Length | 112.4 inches | 285 cm |
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| Width | 50.6 inches | 128 cm |
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| Height (ROPS) | 80.7 inches | 204 cm |
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| Ground clearance | 10 inches | 25 cm |
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| Front axle | Flange: 39.34 inch length | 999 mm |
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| Flange rear axle (Flange) | 37.4 inch length | 949 mm |
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| Front tread | 39.6 inches | 100 cm |
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| Rear tread | 37.6 inches | 95 cm |
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Weight| Gear Shipping (Gear) | 2370 lbs | 1075 kg |
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| Hydro Shipping (Hydro) | 2423 lbs | 1099 kg |
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| Max capacity (Max) | 4145 lbs | 1880 kg |
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| Max front axle | 1929 lbs | 874 kg |
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| Max rear axle (Max) | 2216 lbs | 1005 kg |
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