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NUTS AND BOLTS NEWS Komatsu PC5500 Hydraulic Shovel Offers Reliability, Durability The PC5500 has two powerful Komatsu SDA12V159E-2 diesel engines. Both engines are rated 1,260 hp (939 kW). Komatsu America Corp.'s PC5500-6 hydraulic super shovel, with an operating weight between 531 and 549 tons (482 to 498 t) and a shovel capacity of 38 cu. yd. (29 cu m) can help mines move more material in less time, thereby reducing the cost per ton and increasing profits. The PC5500 has two powerful Komatsu SDA12V159E-2 diesel engines. Both engines are rated 1,260 hp (939 kW). The super shovel's low engine emission levels meet EPA Tier II regulations, and the time-saving oil management system is fitted as standard on all machines. • Productivity Moves More Tons Per Hour With backhoe break-out force of 326,250 lbs. and loading shovel break-out force of 419,200 lbs., the Komatsu super shovel increases the productivity of mines. All cylinders are mounted in the shadow of the attachment's steel structure for safety and protection. A wide range of standard wear packages and buckets are available to suit all densities and application. Different shoes can be selected to meet different ground conditions. Komatsu's PC5500 is matched for trucks ranging from 220 to 320 tons (199 to 290 t). • Large Cab for Operator Comfort The PC5500 features a lownoise cab on multiple viscous mounts for reduced noise and vibration. The large-volume cab has a deep, wide front window, and the comprehensive climate control with pressurized filtered air ventilation and air conditioning system keeps the operator comfortable. With a multi-adjustable air suspension seat, the operator of the PC5500 is well-elevated, offering good all-around views. • Easy Maintenance The PC5500's common-sense design provides quick access to all major components for easy maintenance. With access to all major service points from the machinery's house floor level, there also is ground-level access to the hydraulically-powered swing- • Advanced Hydraulics The four-circuit advanced hydraulics on the PC5500 deliver precision control and extended reliability. Contributing to the machine's productivity, the power train has two main drives. Each motor is connected to a gearbox driving three identical main pumps which draw hydraulic oil from an unpressurized hydraulic tank. The uncomplicated open circuit hydraulic system with high efficiency swing out oil coolers and comprehensive monitored filtration contribute to the machine's efficiency, according to the manufacturer. down service arm with Wiggins connections. The electronic vehicle health monitoring system (VHMS) is mounted in the operator's console and provides a graphic display of real time and stored information about the operating status of the machine. Non-serious and critical faults are immediately announced. The integrated digital storage provides full event history, which can be downloaded onto a PC. Electronically recording service events provides precise service information and reduces downtime, as well as service time. ● www.komatsuamerica.com Nuts & Bolts continuedon page 21 IDA UNIVERSAL March-April 2013 19