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2012 Vol 2 No 8
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New Komatsu WA380-7 Wheel Loader - continued

New Komatsu WA380-7 Wheel Loader• EU Stage IIIB/EPA Tier 4 interim Emission Certified Engine

Built upon proven Stage IIIA technology, the SAA6D107-E2 engine, Komatsu say that this provides lower emissions while also lowering fuel consumption. This is achieved by the Komatsu S3B engine use of advanced electronic control systems to manage air flow rate, fuel injection, combustion parameters and after-treatment functions to optimize performance, reduce emissions and fuel consumption, and provide advanced diagnostic capability.

As a leader in hydraulic technology, Komatsu has also developed a hydraulically actuated Komatsu Variable Geometry Turbocharger (KVGT) and an Exhaust Gas Recirculation (EGR) valve, resulting in better precision and air management as well as longer component life. The Komatsu Diesel Particulate Filter (KDPF) has an integrated design.

The new loader also features Komatsu SmartLoader Logic, which provides optimal engine torque for the job required. This system helps to save fuel by automatically decreasing engine torque when the loader is not working hard, such as when it is driving with an empty bucket. It functions automatically and does not interfere with operation, saving fuel without decreasing production.

The lock-up function activates in 2nd, 3rd and 4th gears and gives the machine a maximum ground speed of 40 km/h.

The wheel loader has greater productivity in V-cycle applications because of the increased tractive effort. The improved hill climbing ability allows the loader to upshift gears faster because of better acceleration. It can also achieve higher gear ranges and maintain higher ground speeds when working in load-and-carry applications. In most applications, production is increased and fuel consumption reduced, resulting in improved fuel efficiency.

• Enhanced Operator Environment

In line with other manufacturers, Komatsu continues to improve operator comfort. The new cab provides a comfortable work environment with a reduced interior sound level of only 68 dB(A) to help operators maximize their productivity.

The front glass has been lowered and the dashboard redesigned to improve visibility. The short lever Electronic Pilot Control (EPC) is connected directly to the operator seat. A precise and comfortable temperature can be set with the Climate Control system, and a CD-Radio including two 12 Volt ports is now incorporated into the cab.

A new high resolution 7” LCD monitor features enhanced capabilities and displays information in any one of 25 languages, for global support and better communication with operators.

Using the monitor, the operator can easily modify settings for items such as the auto idle shutdown or the auto-reversing fan.

Operators can also check operational records, such as working hours or fuel consumption; monitor the KDPF; or check how much time is required before the next maintenance interval. The monitor offers the option of using the ECO Guidance function, which provides operational tips to reduce fuel consumption. A separate high-resolution back-up camera is standard with every machine and is mounted on the right hand side of the console for operator convenience.

• Greater versatility

An easy-to-clean radiator compartment in combination with an auto reversible radiator fan effectively supports work on job sites that are littered with a lot of debris.

A newly designed multi-function lever has integrated proportional controls for the easy handling of attachments that require a third hydraulic line, such as High-Dump buckets. For attachments, the flow rate can be adjusted individually and select a continuous or proportional flow. Komatsu say that a new unique user interface allows operators to save customized settings.

• Convenient Maintenance and Serviceability

The WA380-7 provides easy service access to reduce costly downtime. The new model has increased cooling capacity, wider cooling fin spacing and a standard auto-reversing fan to help keep the radiator clean.

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