Kubota B21 is a backhoe loader tractor model from the B series, manufactured from 2001 to 2007 by Kubota. It was available in four-wheel drive (4WD) version.
The Kubota B21 is equipped with a 1.0 L (61.1 cu·in) three-cylinder diesel engine with 76.0 mm (2.99 in) of the cylinder bore and 73.6 mm (2.9 in) of the piston stroke, and a hydrostatic transmission with infinite (3-range) forward and reverse gears.
The Kubota B21 backhoe loader tractor features:
The Kubota D1005 diesel engine which produces 21.4 PS (15.7 kW; 21.0 HP) at 2,600 rpm of horsepower Hydrostatic power steering Wet disc type brakes Four-post ROPS/FOPS Category I rear hitch with 460 kg (1,015 lbs) of maximum lift capacity Live rear PTO with 540 rpm General specifications General Specifications Model Kubota B21 Tractor type Backhoe-loader tractor Production years 2001-2007 Factory – Dimensions and weight Length – Width – Height – Wheel base 1,530 mm (60.2 in) Weight 1,810 kg (3,990 lbs) Fuel capacity Fuel tank capacity 23.0 liters (6.1 US gal.; 5.1 Imp. gal)
Engine Engine Specifications Engine model Kubota D1005 Engine type 4-stroke, SOHC, three-cylinders Displacement 1.0 L, 1,001 cm2 , (61.1 cu·in) Bore and stroke 76.0 mm x 73.6 mm (3.0 in x 2.9 in) Max. horsepower 21.4 PS (15.7 kW; 21.0 HP) at 2,600 rpm Cooling system Liquid-cooled Coolant capacity: 3.4 L (3.6 US. qt, 3 Imp. qt.) Fuel used Diesel fuel Starting system Electric starting with 12V starter Starting support device Glow plug in combustion chamber Governor All speed mechanical governor Charging system Alternator 12V PTO shaft rotation Counterclockwise Valve clearance Intake valve clearance: 0.145-0.185 mm (0.0057-0.0073 in) Exhaust valve clearance: 0.145-0.185 mm (0.0057-0.0073 in) Oil system Lubrication system: Forced lubrication by trochoid pump Oil type: CF or higher Recommended oil: SAE 10W-30, 10W-40 Oil capacity: 3.0 L (3.2 US. qt, 2.6 Imp. qt.) Oil pressure: At idle speed: 49 MPa (0.5 kgf/cm2 , 7 psi)At rated speed: 196 to 441 MPa (2.0-4.5 kgf/cm2 , 28 to 64 psi) Oil filter: Full flow paper filter (Cartridge type) Oil pressure indicating: Electrical type switch Oil and oil filter change interval: Every 200 hours Fuel system Fuel injection pump: Bosch MD type mini fuel injection pump Injection nozzle: Mini Nozzle (DNOPD) Firing order: 1-2-3 Injection pressure: 13.73 MPa (140 kgf/cm2 , 1,991 psi)
Transmission and chassis Chassis, steering and brakes Chassis 4×4 MFWD 4WD Steering type Hydrostatic power Brakes Wet disc type Final drive Mechanical rear Transmission Transmission manufacturer or model – Transmission type Hydrostatic Gears Infinite (3-range) forward and reverse Speed Forward: 17.9 kmh (11.1 mph)Reverse: 17.9 kmh (11.1 mph) Transmission oil capacity 27.6 L (7.3 US. gal, 6.1 Imp. gal.)
Tires Tires Front tires Industrial: 23×8.50-14 Rear tires Industrial: 12.4-16
Rear Hitch Three-Point Hitch Category I Control type Position control Lift capacity (at 610 mm/ 24 in) 460 kg (1,014 lbs)
PTO (Power take-off shaft) PTO Rear PTO type Live Rear PTO speed 540 rpm
Electrical system Electrical system Ground Negative Charging system – Charging amps – Battery 12V
Hydraulic system Hydraulic system Hydraulic type Open center Hydraulic capacity 27.6 L (7.3 US. gal, 6.1 Imp. gal.) Pump flow 7.1 gpm (26.9 lpm) Steering flow 1.3 gpm (4.9 lpm) Total flow 8.4 gpm (31.8 lpm)
Attachments Kubota loader Height (to pin): 2,550 mm (88.8 in) Dump angle: 45° Rollback angle: 40° Breakout force (lift): 700 kg (1543 lbs) Lift to full height (at pin): 420 kg (926 lbs) Raise time to height 3 s Bucket width 1,420 mm (56 in) Kubota backhoe Bucket width 400 mm (16 in) 2-Foot flat digging depth 2,320 mm (91.7 in) Reach from pivot 3,080 mm (121.3 in) Bucket force 1,410 kg (3,110 lbs) Dipperstick force 792 kg (1,748 lbs)
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The Kubota B21 is a backhoe loader tractor model from the B series, manufactured from 2001 to 2007 by Kubota. It was available in four-wheel drive (4WD) version.
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