Komatsu WA150-5 User Manual

FLYWHEEL HORSEPOWER

Gross: 74 kW 99 HP @ 2000 rpm

Net: 71 kW 96 HP @ 2000 rpm

OPERATING WEIGHT 7410 – 7495 kg

16,336 – 16,524 lb

	BUCKET CAPACITY
WA150-5	1.3 – 1.7 m3	1.7 – 2.2 yd3

WA

150

OADERL HEELW

Photo may include optional equipment.

	WA150-5 W H E E L L O A D E R	WHEEL LOADER	WA150-5

WALK-AROUND

Komatsu-integrated

design offers the best value, reliability, and versatility. Hydraulics, powertrain, frame, and all other major components are engineered by Komatsu. You get a machine whose components are designed

to work together for higher production, greater reliability, and more versatility.

Reduced operator noise

to 70 dB(A)

Expanded main monitor

and troubleshooting display

Larger cab

with new layout design

New tilt steering column

Easy-to-operate loader control mono-lever

using PPC (Proportional Pressure Control)

Large breakout force

Extended service intervals

Maintenance-free fully hydraulic	Electronically controlled Hydrostatic Transmission
wet-disc service and parking brakes	(HST) with variable shift control system

Traction control system

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FLYWHEEL HORSEPOWER

Gross: 74 kW 99 HP @ 2000 rpm

Net: 71 kW 96 HP @ 2000 rpm

OPERATING WEIGHT 7410 – 7495 kg

16,336 – 16,524 lb

BUCKET CAPACITY 1.3 – 1.7 m3

1.7 – 2.2 yd3

Powerful yet efficient Komatsu

SAA4D102E-2 emissionized engine

Full side opening

gull-wing engine doors

Radial Sealed

air cleaner

Swing-out hydraulic radiator fan

Side-by-side type coolers

for easy access and cleaning

Overrun protection system

Ground level servicing

and fluid checks

Extremely low fuel consumption

Flat face "O-Ring" Hydraulic Seals

for extended life

Staircase-type steps

with large rear-hinged doors

Sealed DT electrical connectors

Photos may include optional equipment.

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WA150-5 W H E E L L O A D E R

PRODUCTIVITY FEATURES

High Productivity and Low Fuel Consumption

Powerful Engine

A powerful SAA4D102E-2 turbocharged air-to-air aftercooled diesel engine provides an output (net) of 71 kW 96 HP for the WA150-5.

Low Fuel Consumption

The fuel consumption is reduced up to 10%* due to the hightorque engine and Hydrostatic Transmission (HST) with maximum efficiency in the low-speed range.

*V-shape loading (25 sec. cycle time)

Electronically-Controlled HST Using a 1-Pump,

2-Motor System

●The 1-pump, 2-motor system allows for high-efficiency and high tractive effort. Engine power is transmitted hydraulically to a transfer case, then manually out to the differentials and out to the four driving wheels.

●HST provides quick travel response and aggressive drive into the pile. The variable displacement system automatically adjusts to the tractive effort demand to provide maximum power and efficiency.

●Full auto-shifting eliminates any gear shifting and kickdown operation to allow the operator to concentrate on digging and loading.

●When high drive torque is needed for digging, climbing or initiating movement, the pump feeds both motors. This combination makes the loader very aggressive and quick.

●Under deceleration, the HST system acts as a dynamic brake on the mechanical drive system. The dynamic brake can hold the loader in position on most workable slopes. This can be an advantage in stockpiling and ramp loading.

●As the machine moves and gains ground speed, the torque demand decreases and the low speed motor is effectively removed from the drive system by a clutch. At this point, the flow is going to the high-speed motor and the low-speed motor is not causing a drag on the system.

●An inching pedal gives the operator excellent simultaneous control of his travel and equipment hydraulic speeds. By depressing the inching pedal, drive pump flow to the motors will decrease, reducing ground speed and allowing the operator to use his accelerator to increase flow to his equipment hydraulics. Depressing the inching pedal further will activate the service brakes.

	Transfer case
	Low speed
	piston
	motor
Engine	Piston Pump
	To differentials
	High speed
	piston
	motor

WA150-5

WHEEL LOADER

Electronically-Controlled HST with Variable Shift Control System

The operator can choose between first, second, third or fourth maximum speeds by dialing the speed range selector switch.

For v-cycles, the operator can set the speed control switch to 1 or 2, which will

give him aggressive digging, quick response and fast hydraulics. For load and carry, he can select 3 or 4 which will still give aggressive digging but with much faster travel speed.

The variable shift switch allows the

operator to adjust his machine speed in confined v-loading applications. When in 1, the operator can adjust his travel speed using the variable shift switch to match his machine speed and hydraulics to the distance he must travel.

Traction Control System

In limited traction situations where the operator would like to avoid tire slippage (such as sandy or wet surface operations), he can automatically reduce slippage by activating the traction control feature. Putting the traction control switch in the “ON” position limits the maximum amount of tractive effort.

Traction control will be an advantage in certain appplications such as transfer stations where the loader may be working on slippery concrete.

Variable Shift Control				Traction Control

effort								effort			Reduced
			Variable range
Tractive			of travel speed					Tractive
0	4	8		12	16	20	km/h	0	4	8		12	16	20	km/h
0	2	4	6	8	10	12	MPH	0	2	4	6	8	10	12	MPH
		Travel speed								Travel speed

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