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WB150-2N

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Engine

Model		Komatsu S4D106-2SFA
Type		Vertical, 4-cycle water-cooled diesel engine.
Aspiration		Turbocharged
Combustion		Direct injection
Compression ratio		17:1
Number of cylinders		4
Cylinder, bore x stroke	4.2” x 4.9”	(106 x 125 mm)
Piston displacement	269 in³	4.4 ltr
Gross horsepower rating @ 2200 rpm	100 Hp	74.5 kW
Flywheel/net horsepower @ 2200 rpm (SAE J 1349)	94 Hp	70.1 kW
Max. torque @ 1600 rpm	271 ft lb	368 Nm
Air cleaner		Dry, dual element with dust evacuator and indicator

Electrical System

Electric circuit with protected connections in all exposed areas.
Voltage		12 V
Battery		120 Ah (860 cca)
Alternator		80 A
Electric starting		3 kW

Hydraulic System

The Hydraumind hydraulic system affords the operator very precise backhoe movements. This system is energy efficient and incorporates two different working modes: economy and constant power. The advanced hydraulic system includes the “speed up” function to increase the working speed of the front loader.

System		HydrauMind
Type		Closed center Load Sensing System (CLSS) with economy /power selector switch (power mode is the default setting)
Pump type		Variable displacement axial piston
Pump control system		Load Sensing set to adjust the hydraulic power
Main Valve		“Load Independent Flow Divider” LIFD modular type
Max delivery	43.6 gal/min	165 ltr/min
Work pressure	3,200 psi	221 bar

Refill Capacity

Engine oil	2.1 US gal	7.9 ltr
Cooling system	3.7 US gal	14 ltr
Diesel tank	34.3 US gal	130 ltr
Hydraulic oil tank	24.3 US gal	92 ltr
Front axle oil	2.3 US gal	8.5 ltr
Rear axle oil	4.6 US gal	17.5 ltr
Gear box oil	4.5 US gal	17 ltr

Steering

The front wheels are controlled by a hydrostatic load sensing steering priority valve system.

Turning radius at outer edge of front tire:
Without Brakes	14’1”	4300 mm
With Brakes	11’2”	3400 mm

Axles

Heavy duty axles with planetary reduction gears in the wheel hubs. Front axle total oscillation angle is 20°. Differential lock in the rear axle controlled by electro-hydraulic system with a switch on loader lever.

Max front strength (Dynamic)	14,175 lb	6300 daN
Max front strength (Static)	35,406 lb	15750 daN
Max rear strength (Dynamic)	27,000 lb	12000 daN
Max rear strength (Static)	73,060 lb	32500 daN

Transmission

Switching between 2WD and 4WD is achieved through an electro-hydraulic system. The transmission is operated through a torque converter and a power shift reversing shuttle; the mechanical 4- speed gearbox is synchronized.

Travel Speeds:	mph	km/h
1st Forward	3.9	6.3
1st Reverse	3.9	6.3
2nd Forward	7.1	11.4
2nd Reverse	7.1	11.4
3rd Forward	13.2	21.3
3rd Reverse	13.2	21.3
4th Forward	23.5	37.8
4th Reverse	23.5	37.8

Loader

The design of the front loader allows for better tensile strength distribution and parallel movements when lifting and lowering the bucket. Due to the linkage geometry, the greasing points have been dramatically reduced.

Standard bucket width	7’9”	2355 mm
Capacity (SAE)	1.25 yd³	0.95 m³
STD bucket weight	1,000 lb.	454 kg
Lifting capacity at maximum height:	8,925 lb	3965 daN
Lifting capacity at ground level	11,420 lb	5075 daN
Breakout force	13,825 lb	6145 daN

Backhoe

The boom has a rounded profile and a reinforced structure built with cast ends, allowing 180° rotation while maintaining high rotation torque.

Bucket breakout force:	14,685 lb	6525 daN
Dipper digging force	9,350 lb	4155 daN

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