White Field Boss 31
The White Field Boss 31 is a compact utility tractor built by Iseki and distributed by White from 1986 to 1988. It features a 30 hp Isuzu 1.5L 3-cylinder diesel engine, a 12-speed partially synchronized transmission, and options for two- or four-wheel drive. The tractor includes mechanical wet disc brakes, two-post ROPS with optional canopy and radio, and an open center hydraulic system with 2135 psi pressure and 7.7 gpm flow. It has a rear I-type hitch and independent rear PTO with 540 rpm and a live front PTO at 2600 rpm. Dimensions include a 65 inch wheelbase, 116 inch length, and weights ranging from 2215 to 2414 pounds depending on configuration. The Field Boss 31 supports various attachments including front-end loaders (1045QA and 1155 QA) and rear mowers, blades, box scrapers, and PTO-drive tillers. Electrical system is 12 volts with a 35 amp alternator and negative ground.
Power-
Founded-
ModelField Boss 31
Technical Specifications
Detailed specifications and technical data for White Field Boss 31
Power
| Engine | 30 hp (22.4 kW) |
|---|---|
| PTO (claimed) | 25 hp (18.6 kW) |
Tires
| Lawn/turf rear | 355x800-20 |
|---|---|
| 2WD Lawn/turf front | 24x8.50-12 |
| 4WD Lawn/turf front | 212x800-15 |
| 2WD Standard tires (ag) | Front: 5.00-15. Rear: 11.2-24 |
| 4WD Standard tires (ag) | Front: 7.00-16. Rear: 11.2-24 |
Engine
| Make | Isuzu |
|---|---|
| Type | 1.5L 3-cyl diesel |
| Power | 30 hp (22.4 kW) |
| Idle RPM | 850-2860 |
| Fuel tank | 7.4 gal (28.0 L) |
| Rated RPM | 2600 |
| Bore/Stroke | 3.39x3.39 inches (86 x 86 mm) |
| Compression | 21.4:1 |
| Displacement | 91.4 ci (1.5 L) |
| Starter volts | 12 |
Dimensions
| Width | 52 inches (132 cm) |
|---|---|
| Length | 116 inches (294 cm) |
| Wheelbase | 65 inches (165 cm) |
| Rear tread | 40.2 to 52.8 inches (102 to 134 cm) |
| 2WD Front tread | 37.8 to 41.7 inches (96 to 105 cm) |
| 4WD Front tread | 41.3 inches (104 cm) |
| Height (exhaust) | 80 inches (203 cm) |
| 2WD Shipping weight | 2215 lbs (1004 kg) |
| 4WD Shipping weight | 2414 lbs (1094 kg) |
Electrical
| Ground | negative |
|---|---|
| Battery volts | 12 |
| Charging amps | 35 |
| Charging system | alternator |
Hydraulics
| Type | open center |
|---|---|
| Pressure | 2135 psi (147.2 bar) |
| Total flow | 7.7 gpm (29.1 lpm) |
Mechanical
| ROPS | Two-post ROPS. Optional canopy and radio. |
|---|---|
| Drive | Two- or four-wheel drive |
| Brakes | Mechanical wet discs brakes |
| 2WD Steering | manual |
| 4WD Steering | power |
Production
| Type | Compact Utility tractor |
|---|---|
| Distributor | White |
| Manufacturer | Iseki |
| Original price | $9,000 in 1988 |
| Production years | 1986 - 1988 |
Attachments
| 1045QA Loader | Breakout force1500 lbs (680 kg) Lift capacity (full at pin)1000 lbs (453 kg) |
|---|---|
| 1155 QA Loader | Dump angle45° Dump reach19.5 inches (49 cm) Bucket width60 inches (152 cm) Ground reach57 inches (144 cm) Breakout force1850 lbs (839 kg) Rollback angle22° Height (at pin)96 inches (243 cm) Clearance (dumped)76.5 inches (194 cm) Boom cylinder diameter1.75 inches (4 cm) Bucket cylinder diameter1.75 inches (4 cm) Lift capacity (full at pin)900 lbs (408 kg) |
| Front-end loader | Yes |
| Attachment overview | White 1045QA loader, White 1155 QA loader, Rear mowers for the Field Boss 31 included finishing (48, 60, or 72 inch), flail (50 or 60 inch), and rotary cutters (48 or 60 inch). Rear blades in 5 or 6 foot widths, plus a 4.5 foot box scraper could be fitted. PTO-drive tillers were available in 40, 52, or 60 inch widths. |
Transmission
| Type | partially synchronized |
|---|---|
| Gears | 12 forward and 4 reverse |
| Details | Three synchronized gears in four ranges. |
| Description | Triple-sync |
Tractor hitch
| Rear Type | I |
|---|
Serial Numbers
| 1986 2WD | TE4300TM00126 |
|---|---|
| 1986 4WD | TE4300FS00028 |
| 1987 2WD | TE4300TM00163 |
| 1987 4WD | TE4300FS00175 |
| 1988 2WD | TE4300TM00276 |
| 1988 4WD | TE4300FS00568 |
| Location | Tractor frame on left |
Power Take-off (PTO)
| Rear PTO | independent |
|---|---|
| Front PTO | live |
| Rear PTO Type | 540 (1.375) |
| Front PTO Type | 2600 |
