Caterpillar has introduced a new wheeled bulldozer designed to deliver high production operation in applications like utility work at mines and heavy civil construction
The new Cat 814K wheel dozer features a new, sound-suppressed cab, efficient power unit and transmission drive, and centralised service station configuration to increase machine uptime and operator productivity, said the global equipment giant.
Its rugged structure is designed to achieve multiple life cycles under the toughest operating conditions, with particular suitability in backfilling and grading work, ground preparation and subbase work on airport and commercial projects, Cat added.
The 814K upgraded cab design makes the operators workspace more comfortable and provides for more efficient machine operation. Isolation cab mounting plus seat air-suspension safeguard against machine vibration feedback to the operator. The cabin reduces operating noise levels to 71dB, compared to 78dB in its predecessor, said Cat. There is also a a sound-suppression package option to lower sound levels further to 70dB.
Cab entry and exit is facilitated through integration of the new fold-up STIC (Steering and Transmission Integrated Control System) armrest. According to Cat, STIC delivers maximum machine responsiveness and control plus smoother, faster cycles, while minimising operator movement to reduce fatigue. Simple side-to-side movements turn the machine to the left or right, and gear selection control is operated through a finger-controlled rocker switch. Removal of the steering wheel console vastly increases operator space and improves forward visibility of the work area.
The 814K offers an upgraded touch screen information display providing critical machine operating data such as system temperatures, fuel use and machine hours. The dozers new Vital Information Management System (VIMS) allows technicians to connect directly to the machine to access a wide range of sensor information and expanded machine data. This allows managers to create productivity reports, identify operator training opportunities, see data logging of machine parameters and diagnostic codes, and monitor machine health. Cat Product Link offers remote access of machine operating data through the manufacturers VisionLink interface to facilitate fleet management.
The new 814K is powered by the Cats C7.1 ACERT engine in different version that meet emission norms in various regions of the world. It meets US EPA Tier 4 Final and EU Stage IV emission standards, or Brazil MAR-1 emission standards equivalent to Tier 3 and Stage IIIA to meet global emissions standards. Featuring Engine Idle Shutdown and Auto Idle Kickdown to avoid unnecessary idling, the engine boasts lower fuel consumption than previous models. Load Sense Control Hydraulics provide on-demand hydraulic flow required by the implement and steering system to further improve fuel efficiency and deliver increased rimpull.
The 814K has four forward and reverse speeds in its powershift transmission. Through the Cat-exclusive Advanced Productivity Electronic Control Strategy (APECS), the 814K delivers consistent and smooth shifting, even when under load. APECS results in no loss of momentum on slopes during gear shifts, so the dozer climbs grades more efficiently and with less fuel burn.
There are two Cat blade design options. The 2.84m3 straight blade delivers high production dozing on stockpile material and general earthmoving projects. Alternatively, the 10.5m3 coal blade provides precise dozing, while helping to retain load control with increased capacity for lighter materials.
Among the features that make for easier servicing is the machines new centralised ground-level service area, providing quick access to the master disconnect switch with integrated lock-out/tag-out, circuit breakers, emergency fuel shutoff switch and jump start receptacle. Grouping of grease points for steering, hitch and rear axle trunnions along with easily visible fluid sight gauges reduce time spent on daily maintenance requirements. The machines new high efficiency hydraulic filtration results in cleaner hydraulic oil to increase component life and extends the oil inspection requirement by 50%, from 2,000 to 4,000 hours, according to Caterpillar.
The manufacturer added that the new 814K wheel dozer is currently available for worldwide orders, with the first machine shipments planned for this month.
