White

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
Engine30 hp (22.4 kW)
PTO (claimed)25 hp (18.6 kW)
Tires
Lawn/turf rear355x800-20
2WD Lawn/turf front24x8.50-12
4WD Lawn/turf front212x800-15
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
MakeIsuzu
Type1.5L 3-cyl diesel
Power30 hp (22.4 kW)
Idle RPM850-2860
Fuel tank7.4 gal (28.0 L)
Rated RPM2600
Bore/Stroke3.39x3.39 inches (86 x 86 mm)
Compression21.4:1
Displacement91.4 ci (1.5 L)
Starter volts12
Dimensions
Width52 inches (132 cm)
Length116 inches (294 cm)
Wheelbase65 inches (165 cm)
Rear tread40.2 to 52.8 inches (102 to 134 cm)
2WD Front tread37.8 to 41.7 inches (96 to 105 cm)
4WD Front tread41.3 inches (104 cm)
Height (exhaust)80 inches (203 cm)
2WD Shipping weight2215 lbs (1004 kg)
4WD Shipping weight2414 lbs (1094 kg)
Electrical
Groundnegative
Battery volts12
Charging amps35
Charging systemalternator
Hydraulics
Typeopen center
Pressure2135 psi (147.2 bar)
Total flow7.7 gpm (29.1 lpm)
Mechanical
ROPSTwo-post ROPS. Optional canopy and radio.
DriveTwo- or four-wheel drive
BrakesMechanical wet discs brakes
2WD Steeringmanual
4WD Steeringpower
Production
TypeCompact Utility tractor
DistributorWhite
ManufacturerIseki
Original price$9,000 in 1988
Production years1986 - 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 loaderYes
Attachment overviewWhite 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
Typepartially synchronized
Gears12 forward and 4 reverse
DetailsThree synchronized gears in four ranges.
DescriptionTriple-sync
Tractor hitch
Rear TypeI
Serial Numbers
1986 2WDTE4300TM00126
1986 4WDTE4300FS00028
1987 2WDTE4300TM00163
1987 4WDTE4300FS00175
1988 2WDTE4300TM00276
1988 4WDTE4300FS00568
LocationTractor frame on left
Power Take-off (PTO)
Rear PTOindependent
Front PTOlive
Rear PTO Type540 (1.375)
Front PTO Type2600