White Field Boss 31: all source data
All 60 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 | White |
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| Manufacturer | Iseki |
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| (no label) | Compact Utility tractor |
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| (no label) | Original price was $9,000 in 1988 |
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Engine| (no label) | Isuzu 1.5L 3-cyl diesel |
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| Fuel tank | 7.4 gal | 28.0 L |
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Transmission| (no label) | 12-speed partially synchronized |
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Power| Engine | 30 hp | 22.4 kW |
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| PTO (claimed) | 25 hp | 18.6 kW |
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Mechanical| (no label) | Two- or four-wheel drive |
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| 2WD Steering | manual |
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| 4WD Steering | power |
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| (no label) | Mechanical wet discs brakes |
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| (no label) | Two-post ROPS. Optional canopy and radio. |
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Hydraulics| Type | open center |
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| Pressure | 2135 psi | 147.2 bar |
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| Total flow | 7.7 gpm | 29.1 lpm |
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Pto| Rear PTO | independent |
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| Rear PTO Type | 540 (1.375) |
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| Front PTO | live |
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| Front PTO Type | 2600 |
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Dimensions| Wheelbase | 65 inches | 165 cm |
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| Weight | 2215 to 2414 pounds |
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| Front tire | 5.00-15 |
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| 2WD Rear tire (2WD) | 11.2-24 |
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Electrical| Ground | negative |
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| Charging system | alternator |
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| Charging amps | 35 |
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| Battery volts | 12 |
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Engine
Engine detail| (no label) | Isuzu |
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| (no label) | diesel |
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| (no label) | 3-cylinder |
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| (no label) | liquid-cooled inline |
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| Displacement | 91.4 ci | 1.5 L |
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| Bore/Stroke | 3.39x3.39 inches | 86 x 86 mm |
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| Power | 30 hp | 22.4 kW |
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| Compression | 21.4:1 |
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| Rated RPM | 2600 |
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| Idle RPM | 850-2860 |
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| Firing order | 1-3-2 |
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| Starter volts | 12 |
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Transmission
Transmission| Transmission | Triple-sync |
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| Type | partially synchronized |
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| Gears | 12 forward and 4 reverse |
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| (no label) | Three synchronized gears in four ranges. |
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Dimensions
Tires| 2WD Standard tires (ag) (2WD) | Front: 5.00-15. Rear: 11.2-24 |
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| 4WD Standard tires (ag) (4WD) | Front: 7.00-16. Rear: 11.2-24 |
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| 2WD Lawn/turf front (2WD) | 24x8.50-12 |
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| 4WD Lawn/turf front (4WD) | 212x800-15 |
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| Lawn/turf rear | 355x800-20 |
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Dimensions| Wheelbase | 65 inches | 165 cm |
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| Length | 116 inches | 294 cm |
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| Width | 52 inches | 132 cm |
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| Height (exhaust) | 80 inches | 203 cm |
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| 2WD Shipping weight (2WD) | 2215 lbs | 1004 kg |
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| 4WD Shipping weight (4WD) | 2414 lbs | 1094 kg |
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| 2WD Front tread | 37.8 to 41.7 inches | 96 to 105 cm |
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| 4WD Front tread | 41.3 inches | 104 cm |
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| Rear tread | 40.2 to 52.8 inches | 102 to 134 cm |
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