Kubota industrial tractors
Kubota B20
The Kubota B20 is a backhoe loader tractor produced from 1990 to 1998. It features a Kubota 0.9L 3-cylinder liquid-cooled diesel engine delivering 20 hp gross and 17.5 hp net. The tractor uses a hydrostatic transmission with infinite forward and reverse speeds in 3 ranges. It has four-wheel drive, mechanical rear differential lock, power steering, and dry disc brakes. The B20 includes a two-post ROPS with optional FOPS. Hydraulics are open center with 2000 psi pressure and 12.7 gpm pump flow. The tractor hitch is category I with position control and rear lift capacity up to 1279 lbs at ends. The rear PTO is live with 540 rpm at 2534 engine RPM. Dimensions include a 60.4 inch wheelbase, 106.7 inch length (tractor only), 53.7 inch width, and 84.6 inch height. The shipping weight is 2,050 lbs. Tires vary between agricultural and industrial types. Attachments include the TL420 front loader and Kubota BT650 and BT750 backhoes with various digging depths and forces.
Power-
Founded-
ModelB20
Technical Specifications
Detailed specifications and technical data for Kubota B20
Power
| Engine (net) | 17.5 hp (13.0 kW) |
|---|---|
| PTO (claimed) | 13.5 hp (10.1 kW) |
| Engine (gross) | 20 hp (14.9 kW) |
Tires
| Ag rear | 12.4-16 |
|---|---|
| Ag front | 23X8.50-12 |
| Industrial rear | 12.4-16 |
| Industrial front | 23x8.50-2 |
Engine
| Type | diesel |
|---|---|
| Model | Kubota D950-A-T |
| Cooling | liquid-cooled |
| Cylinders | 3-cylinder |
| Fuel tank | 5.3 gal (20.1 L) |
| Rated RPM | 2600 |
| Air cleaner | dry |
| Bore/Stroke | 3.00x2.80 inches (76 x 71 mm) |
| Power (net) | 17.5 hp (13.0 kW) |
| Displacement | 56.6 ci (0.9 L) |
| Oil capacity | 4.1 qts (3.9 L) |
| Power (gross) | 20 hp (14.9 kW) |
| Starter volts | 12 |
| Coolant capacity | 4.2 qts (4.0 L) |
Variants
| B1750 | compact tractor |
|---|
Dimensions
| Width | 53.7 inches (136 cm) |
|---|---|
| Height | 84.6 inches (214 cm) |
| Length | 106.7 inches (271 cm) (Tractor only) |
| Wheelbase | 60.4 inches (153 cm) |
| Rear tread | 41.3 inches (104 cm) |
| Front tread | 37.8 inches (96 cm) |
| Shipping weight | 2,050 lbs (929 kg) (Tractor only) |
| Ground clearance | 9.3 inches (23 cm) |
| Height (backhoe) | 70.1 inches (178 cm) |
Electrical
| Ground | negative |
|---|---|
| Battery volts | 12 |
| Charging system | alternator |
Hydraulics
| Type | open center |
|---|---|
| Valves | 1 |
| Pressure | 2000 psi (137.9 bar) |
| Pump flow | 12.7 gpm (48.1 lpm) |
Mechanical
| ROPS | Two-post ROPS. FOPS optional. |
|---|---|
| Brakes | Dry disc brakes |
| Power steering | yes |
| Four-wheel drive | yes |
| Differential lock | mechanical rear |
Production
| Type | Backhoe loader tractor |
|---|---|
| Manufacturer | Kubota |
| Years produced | 1990 - 1998 |
Attachments
| Backhoe | [object Object],[object Object] |
|---|---|
| Front-end loader | TL420 Loader |
| TL420 Loader dump angle | 40° |
| TL420 Loader raise time | 2.9s |
| TL420 Loader bucket width | 56 inches (142 cm) |
| TL420 Loader lift capacity | 926 lbs lift (full at pin) (420 kg) |
| TL420 Loader rollback time | 2.3s |
| TL420 Loader breakout force | 1543 lbs breakout (699 kg) |
| TL420 Loader reach (dumped) | 23.1 inches (58 cm) |
| TL420 Loader reach (ground) | 56.9 inches (144 cm) |
| TL420 Loader rollback angle | 40° |
| TL420 Loader height (at pin) | 86.3 inches (219 cm) |
| TL420 Loader clearance (dumped) | 66.1 inches (167 cm) |
Transmission
| Type | hydrostatic |
|---|---|
| Gears | infinite forward and reverse (3-range) |
| Oil capacity | 30.6 qts (29.0 L) |
Tractor hitch
| Control | position control |
|---|---|
| Rear Type | I |
| Rear lift (at ends) | 1279 lbs (580 kg) |
| Rear lift (at 24"/610mm) | 1014 lbs (459 kg) |
Serial Numbers
| 1989 | 50250 |
|---|---|
| 1990 | 50617 |
| 1991 | 51298 |
| 1992 | 51771 |
| 1993 | ????? |
| 1994 (June) | 70343 |
Power Take-off (PTO)
| Rear PTO | live |
|---|---|
| Engine RPM | 540@2534 |
| Rear PTO Type | 540 |