Komatsu WB146-5 / WB146PS-5 Backhoe Loader

Dimensions

A. Maximum Height 166.5 in (4230 mm)
B. Hinge Pin Height 132.5 in (3367 mm)
C. Overall Height to Top of Cab with ROPS 115.6 in (2935 mm)
D. Max Dumping Height 103.2 in (2622 mm)
E. Reach at Max Height and 45° Dump Angle 29.5 in (750 mm)
F. Dumping Angle 45°
G. Rollback Angle 45°
H. Digging Depth 5.4 in (138 mm)
I. Bucket Reach (Transport) 79.6 in (2023 mm)
J. Ground Clearance 16.9 in (430 mm)
K. Wheel Base 85.6 in (2175 mm)
L. Backhoe Swing Center Distance 46.3 in (1175 mm)
M. Transportation Length 292.6 in (7432 mm)
N. Dumping Height (SAE) 144.7 in (3676 mm)
N. Dumping Height (SAE) with Retracted Telescopic 144.0 in (3658 mm)
N. Dumping Height (SAE) with Extended Telescopic 172.0 in (4369 mm)
O. Max Digging Height 209.4 in (5319 mm)
O. Max Digging Height with Extended Telescopic 231.6 in (5885 mm)
P. Digging Depth (2′ Level Bottom) 172.0 in (4370 mm)
P. Digging Depth (2′ Level Bottom) with Extended Telescopic 215.8 in (5479 mm)
Q. Reach at Max Height 111.3 in (2828 mm)
Q. Reach at Max Height with Extended Telescopic 152.6 in (3877 mm)
R. Max Reach from Swing Center 226.1 in (5742 mm)
R. Max Reach from Swing Center with Extended Telescopic 265.8 in (6755 mm)
S. Max Digging Depth 174.2 in (4423 mm)
S. Max Digging Depth with Extended Telescopic 217.9 in (5533 mm)
T. Digging Reach 91.3 in (2320 mm)
U. Rear Tread 70.9 in (1800 mm)
V. Front Tread 73.8 in (1874 mm)
W. Overall Width (with Bucket) 92.7 in (2356 mm)
X. Backhoe Transportation Height 144.7 in (3676 mm)
X. Backhoe Transportation Height with Telescopic Arm 147.4 in (3746 mm)

Komatsu WB146-5 Backhoe Loader Dimensions and Working Range

Backhoe Performance

Bucket Breakout Force (ISO 6015) 13505 lbf (60.1 kN)
Arm Breakout Force (ISO 6015) 8830 lbf (39.3 kN)
Lift Capacity at Ground Level (Standard Arm) 3219 lb (1460 kg)
Lift Capacity at Ground Level (Retracted Telescopic Arm) 2902 lb (1316 kg)
Lift Capacity at Ground Level (Extended Telescopic Arm) 2284 lb (1036 kg)

Komatsu WB146-5 Backhoe Loader Weight

Loader Performance

Standard Bucket Capacity (SAE) 1.25 yd3 (0.95 m3)
Standard Bucket Width 92.7 in (2356 mm)
Standard Bucket Weight 1000 lb (454 kg)
Bucket Breakout Force 13224 lbf (58.8 kN)
Lift Capacity at Full Height 8598 lb (3900 kg)
Lift Capacity at Ground Level 11020 lb (5000 kg)

Engine Details

Number of Cylinders 4
Engine Make Komatsu
Engine Model Komatsu S4D102LE-2
Displacement 275 cu in (4.5 L)
Bore 4.49 in (114 mm)
Stroke 5.31 in (135 mm)
Gross Power 92 hp (69 kw)
Net Power 88 hp (66 kw)
Power Measured @ 2200 rpm
Peak Torque 300 lb ft (407 Nm)
Torque Measured @ 1500 rpm
Compression Ratio 18:1
Fuel System Direct injection
Lubrication System Gear pump, force-lubrication with full-flow type oil filter
Air Cleaner Dry type with double elements and dust evacuator, condition indicator
Aspiration Turbocharged

Komatsu WB146-5 Backhoe Loader Specs

Operational Specs

Operating Weight 16090 lb (7300 kg)
Operating Voltage 12 V
Alternator 95 amps
Battery 12 V, 100 Ah, CCA 860
Starter 12 V, 4.3 hp (3.2 kw)
Front Tire Size (2WD/4WD) 14 x 17.5, 10 ply, R4
Rear Tire Size (2WD/4WD) 19.5 x 24, 10 ply, R4
Turning Radius 133.9 in (3400 mm)

Operator Environment

Operator Station Canopy or Cab with ROPS / FOPS
Operator Seat Mechanical suspension with armrests
Seat Belt Retractable seat belt, 3 in (76 mm) wide
HVAC Heater, air conditioner and fan
Control Multi-function pilot actuated loader control lever (transmission disconnect, multi-purpose bucket controls, differential lock, loader speed up)
Working Lights 2 front + 2 rear working lights

Komatsu WB146-5 Backhoe Loader Transmission Specs

Transmission

Model Komatsu WB146-5 Komatsu WB146PS-5
Type Power Shuttle Transmission Power Shift Transmission
Number of Gears 4F / 4R 4F / 3R
Max Forward Speed 23.5 mph (37.8 km/h) 24.9 mph (40 km/h)
Max Reverse Speed 23.5 mph (37.8 km/h) 14.3 mph (23 km/h)
Service Brakes Wet disc brakes Wet disc brakes
Parking Brake Automatically disengages transmission when activated Automatically disengages transmission when activated

Hydraulic System

Type Closed-center Load Sensing System (CLSS) HydrauMind with economy/power selector switch
Pump Type Variable displacement axial piston pump
Pump Flow Capacity 43.6 gal/min (165 L/min)
Relief Valve Pressure 3553 psi (24500 kPa)
Pump Control System Load sensing
Main Valve LIFD modular type (Load Independent Flow Divider)

Komatsu WB146-5 Service Refill Capacities

Service Refill Capacities

Fuel Tank Capacity 39.6 gal (150 L)
Engine Oil Capacity 2.4 gal (9 L)
Cooling System Capacity 3.7 gal (14 L)
Transmission Oil Capacity (Power Shuttle, Komatsu WB146-5) 5.3 gal (20.2 L)
Transmission Oil Capacity (Power Shift, Komatsu WB146PS-5) 7.4 gal (28.0 L)
Front Axle Fluid Capacity 2.0 gal (7.5 L)
Rear Axle Fluid Capacity 3.8 gal (14.5 L)
Hydraulic System Capacity (w/ tank) 25.6 gal (97 L)
Hydraulic Tank Capacity 10.8 gal (41 L)
Ask a question