Dual-Mode Engine Power Select System

This wheel loader offers two selectable operating modes— E and P. The operator can adjust the machine’s performance with the selection switch.

E Mode:

This mode provides maximum fuel efficiency for general loading.

P Mode:

This mode provides maximum power output for hard digging operation or hill climb.

Automatic Transmission with Mode Select System

This operator controlled system allows the operator to select manual shifting or two levels of automatic shifting (low, and high). Auto L mode is for fuel saving operation with the gear shift timing set at lower speeds than Auto H mode. Therefore Auto L mode keeps the engine in a relatively low rpm range for fuel conservation while yielding adequate tractive force by depressing the accelerator pedal.

Lock-up Torque Converter

The Komatsu designed lock-up torque converter provides increased production efficiency, reduced cycle times and optimum fuel savings in load & carry or hill-climb operations. This optional feature allows the operator to activate the system on/off with a switch located on the right-side control panel.

Variable Displacement Piston Pump and Closed-center Load Sensing System

New design variable displacement piston pump combined with the CLSS delivers hydraulic flow just as the job requires preventing wasted hydraulic pressure. Minimized waste loss contributes to better fuel economy.

Sweeper Wing

To protect the tire, the WA600 provides a Sweeper Wing on both sides of the bucket.

High-rigidity Frames and Loader Linkage

The front and rear frames and the loader linkage have more torsional rigidity to secure resistance against increased stress due to the use of a larger bucket. Frame and loader linkage are designed to accommodate actual working loads, and simulated computer testing proves its strength.

Modulated Clutch System

The Modulated Clutch System controls the tractive effort with left brake pedal from 100% to 20% of the converter output torque.

• Useful for smooth speed reduction when approaching dump trucks for loading.

• Easy control of tire slippage.

• Reduction of shocks in shifting from forward to reverse.

Electronic Pilot Control  levers

The finger control EPC work equipment levers have light operating effort and short stroke facilitating easy operation. The operator’s comfort is further increased by the full large size adjustable arm rests. Combined with CLSS, this system allows the following new functions for easy and efficient operation:

• Remote Boom Positioner with shockless stop function: The highest and lowest position of the bucket can be set from cab to match any truck body. Once the positioner is set, the bucket is smoothly stopped at desired position with no shock.

• Remote bucket digging angle control: The digging bucket angle can be easily set from cab to match of ground condition.

Advanced Joystick Steering System

AJSS is a feedback steering system which has been incorporated to allow steering and forward and reverse selection to be controlled by wrist and finger control. With the feedback function added, the machine steering angle is defined exactly the same angle as the lever tilt angle.

Pillar-less Large Cab

A wide pillar-less flat glass provides excellent front visibility. The wiper arm covers a large area to provide great visibility even on rainy days. The cab area is the largest in its class providing maximum space for the operator.

Rear Access Stairs

For the purpose of easily boarding and exiting the machine, rear access stairs with handrails are provided. The step width, clearance, and the step angle have been designed for safety climbing both up and down. A step light provides light for night boarding.

Engine

Transmission

Axles and Final Drives

Brakes

Steering System

Hydraulic System

Service Refill Capacities