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Kubota BX23S Backhoe Loader
The
Kubota BX23S tractor loader backhoe was manufactured from 2017 to 2021. The
Kubota BX23S TLB powerline includes a Kubota D902 four-stroke vertical
3-cylinder water-cooled diesel engine, and 2-range hydrostatic transmission with
high-low gear shift.
A 54.8 cu.in (0.9 L) engine has a cylinder bore of 2.83"
(72 mm), piston stroke of 2.9" (73.6 mm), and rated power of 23 Hp (17.2 kW). The max travel speed (forward/reverse): 8.4 mph (13.5 kph) and 6.5 mph (10.5
kph). The open center hydraulic system used a gear pump with a rated fluid flow
of 6.2 gpm (23.5 lpm). The main relief pressure is 128 bar (1850 psi). The
Kubota BX23S TLB is equipped with 18x8.50-10 front tires and 26x12.00-12 rear
tires. The wheelbase is 55.1 in (1400 mm).
The LA340S loader has a lifting capacity (at pivot pin) of 615 lbs (280
kg) to max height of 71 in (1804 mm), and breakout force of 1285 lbs (585 kg). A
full dump clearance with a 45-degree max dump angle is 50.7 in (1288 mm). The
raising cycle time is 3.3 sec from ground level to full height, and bucket
dumping time is 2.7 sec. The 48 in (1220 mm) standard material bucket has a nominal
heaped capacity of 6.0 cu.ft (0.17 m3).
The BT603 backhoe has a maximum depth of
74.4 in (1890 mm), 2-ft flat depth of 72.5 in (1840 mm), and 8-ft flat depth of
41.7 in (1060 mm). The digging force is 1170 lbs (530 kg) using a dipperstick
cylinder and 1936 lbs (880 kg) using a bucket cylinder. The reach from swing
pivot at ground line is 102.8 (2612 mm). The backhoe can be fitted with 12" (305
mm) or 16" (405 mm) buckets.
| Engine Model |
Kubota D902 |
| Engine Type |
Vertical water-cooled 4-stroke diesel |
| Number of Cylinders |
3 |
| Cylinder Bore, in (mm) |
2.83 (72.0) |
| Piston Stroke, in (mm) |
2.90 (73.6) |
| Total Displacement, cu.in (L) |
54.8 (0.898) |
| Maximum Power, hp (kw) |
23.0 (17.2) |
| Rated Speed, rpm |
3200 |
| Idle Speed, rpm |
900-3800 |
| Aspiration |
Naturally aspirated |
| Compression Ratio |
24:1 |
| Firing Order |
1-2-3 |
| Combustion Chamber |
Spherical type |
| Direction of Rotation |
Counter-clockwise |
| Fuel Injection Pump |
Bosch type |
| Injection nozzle |
Bosch Throttle type |
| Governor Type |
All speed mechanical governor |
| Lubrication System |
Forced lubrication by trochoid pump |
| Oil Pressure Indicating |
Electrical type switch |
| Oil Filter Type |
Full flow paper filter (cartridge) |
| Valve Clearance (Cold), in (mm) |
0.0057-0.0073 (0.145-0.185) |
| Fuel Tank Capacity, gal (L) |
6.6 (25.0) |
| Oil Capacity, qts (L) |
4.0 (3.7) |
| Coolant Capacity, qts (L) |
3.4 (3.2) |
| Electrical System Rating, Volts |
12 |
| Alternator Rating, Amps |
40 |
| Starting System |
Electric starting with starter |
| Starter Rating |
12V, 1.2 kW |
| PTO Operational Type |
Independent |
| PTO Horsepower, hp (kW) |
17.5 (13.0) |
| PTO Clutch |
Hydraulic |
| Rear PTO Speed, rpm |
540 |
| Mid PTO Speed, rpm |
2500 |
| Transmission Type |
Hydrostatic, high-low gear shift |
| Number of Forward Gears |
Infinite (2-range) |
| Number of Reverse Gears |
Infinite (2-range) |
| Oil Capacity, qts (L) |
12.0 (11.3) |
| Maximum Forward Speed, mph (kph) |
8.4 (13.5) |
| Maximum Reverse Speed, mph (kph) |
6.5 (10.5) |
| Drive Wheels |
4WD 4x4 |
| Steering Configuration |
Front steer |
| Steering System |
Hydrostatic power |
| Brakes Type |
Wet disc |
| Front Tire Size |
18x8.50-10 |
| Rear Tire Size |
26x12.00-12 |
| Front Tread, in (mm) |
36.6 (920) |
| Rear Tread, in (mm) |
32.2 (810) |
| Hydraulic System Type |
Open center |
| Implement Pump Type |
Gear |
| Implement Pump Flow, gpm (Lpm) |
6.2 (23.5) |
| Hydraulic Pressure, Bar (psi) |
128 (1850) |
| Number of Standard Remote Valves |
2/2 |
| 3-Point Hitch Category |
1 |
| Draft Sensing or Lift Control |
Position control |
| Lift Capacity at 24" (610mm) ahead pin, lb (kg) |
680 (310) |
| Lift Capacity at pin, lb (kg) |
1210 (550) |
| Wheelbase, in (mm) |
55.1 (1400) |
| Length (Tractor only), in (mm) |
99 (2515) |
| Length (with Loader/Backhoe), in (mm) |
174.8 (4440) |
| Height (ROPS), in (mm) |
86.2 (2190) |
| Overall Width, in (mm) |
45.1 (1145) |
| Ground Clearance, in (mm) |
8.4 (213) |
| Turning Radius, in (mm) |
90.5 (2300) |
| Weight (Tractor only), lb (kg) |
1570 (712) |
| Weight (with Loader/Backhoe), lb (kg) |
2660 (1210) |
| Loader Model |
Kubota LA340S |
| Maximum Lift Height to Pivot Pin, in (mm) |
71 (1804) |
| Clearance with Bucket Dumped, in (mm) |
50.7 (1288) |
| Reach at Maximum Lift Height, in (mm) |
26.5 (677) |
| Maximum Dump Angle, degrees |
45 |
| Digging Depth, in (mm) |
4.8 (122) |
| Maximum Rollback Angle, degrees |
29 |
| Lift Capacity to Full Height at Pivot Point, lbs (kg) |
615 (280) |
| Breakout Force at Bucket Pivot Point, lbs (kg) |
1285 (585) |
| Boom Cylinder Size (Bore/Stroke), in (mm) |
1.57x12.8 (40x326) |
| Bucket Cylinder Size (Bore/Stroke), in (mm) |
2.56x7.7 (65x196) |
| Bucket Width, in (mm) |
48 (1220) |
| Loader Weight, lbs (kg) |
475 (215) |
| Backhoe Model |
Kubota BT603 |
| Maximum Digging Depth, in (mm) |
74.4 (1890) |
| 2-ft Flat Digging Depth, in (mm) |
72.5 (1840) |
| 8-ft Flat Digging Depth, in (mm) |
41.7 (1060) |
| Overall Reach from Swing Pivot, in (mm) |
102.8 (2612) |
| Loading Height, in (mm) |
60.4 (1533) |
| Loading Reach, in (mm) |
40 (1015) |
| Swing Arc, deg |
140 |
| Bucket Rotation, deg |
180 |
| Transport Height, in (mm) |
67.7 (1720) |
| Stabilizer Spread (Operating Position), in (mm) |
73.3 (1860) |
| Stabilizer Spread (Transport Position), in (mm) |
51 (1295) |
| Digging Force (Bucket Cylinder), lbs (kg) |
1936 (880) |
| Digging Force (Dipper Cylinder), lbs (kg) |
1170 (530) |
| Bucket Widths, in (mm) |
12, 16 (305, 405) |
| Backhoe Weight, lbs (kg) |
608 (275) |
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| Backhoe Loaders Technical Specifications |
