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Wheel Lo Ader NET HORSEPOWER 140 kW 187 HP @ 2000 rpm OPERATING WEIGHT 17635 – 18220 kg 38,879 – 40,170 lb BUCKET CAPACITY 2.9–4.0 m3 3.8–5.2 yd3 WHEEL LOADER Photos may include optional equipment. WA380-5 Wheel Loader WWALKALK-A-AROUNDROUND Komatsu-integrated design offers the best Reduced operator noise value, reliability, and versatility. to 71 dB(A). Hydraulics, powertrain, frame, 18% larger cab and all other major components with new layout design. are engineered by Komatsu. Expanded main monitor You get a machine whose and troubleshooting display. components are designed to work together for higher production, greater reliability, Telescopic/tilt steering column. and more versatility. Optional joystick steering. Fingertip control levers. Optional load meter integrated on main monitor. Dual-speed Automatic transmission Extended service intervals. hydraulic system. with four selectable shifting modes. 2 WA380-5 WHEEL LOADER NET HORSEPOWER 140 kW 187 HP @ 2000 rpm Air conditioning, air-ride seat OPERATING WEIGHT and ride control are standard features for 17635 – 18220 kg increased operator comfort. 38,879 – 40,170 lb Two-mode engine BUCKET CAPACITY power select system. 2.9 – 4.0 m3 3.8 – 5.2 yd3 Powerful yet efficient Komatsu SAA6D114E-2 emissionized engine. Reversible, variable speed, hydraulic radiator fan and swing-out coolers. Full side opening gull-wing engine doors. Adjustable transmission cut-off system. Staircase-type steps Optional lockup torque with large rear-hinged doors. converter. Ground level servicing Komatsu’s highly productive, innovative and fluid checks. technology, environmentally friendly machines built for the 21st century. 3 PPRODUCTIVITYRODUCTIVITY FFEATURESEATURES High Productivity and Low Fuel Consumption Powerful Engine • Auto Low: Low mode provides smooth gear shifting at The 187 hp SAA6D114E-2 engine provides optimum com- low engine speeds suitable for general excavating and bustion of fuel at both low and high speed/power applications loading while offering reduced fuel consumption. with fast throttle response to match the machine’s powerful • Auto Medium: Medium mode provides gear shifting at rim pull and fast hydraulic response. mid-range engine speeds required for more aggressive conditions. Low Fuel Consumption ● Auto High: High mode pro- The fuel consumption has been reduced 15% due to the vides maximum rim pull and high-torque engine and the large-capacity torque converter fast cycle times by shifting with maximum efficiency in the low-speed range. the transmission at high engine speeds. This mode is Two Mode Engine Power Select System suitable for hill-climb and This wheel loader offers two selectable engine operating load and carry operations. modes — Normal and Power. The operator can adjust the machine’s engine performance to match the condition Variable Transmission Cut-off requirements. This system is controlled with a dial on the The operator can select the transmission cut-off pressure right side control panel. desired for the left brake pedal using the switch located on • Normal Mode: provides maximum fuel efficiency for most the right-side control panel. general loading conditions. • Power Mode: provides maximum power output for hard • Higher cut-off pressure allows the transmission to remain digging conditions or hill climb operations. engaged at higher engine rpm/hydraulic pressure for Automatic Transmission with Four Mode increased performance in ramp loading and stockpiling Select System operations. • Lower cut-off pressure disengages the transmission at This operator controlled sys- lower rpm/hydraulic pressure for more fuel efficient opera- tem allows the selection of tion on level surfaces. manual shifting or three levels Lockup Torque Converter of automatic shifting modes (low, medium, and high). The The Komatsu designed lock-up torque converter provides operator can match the increased production efficiency, reduced cycle times and opti- machine’s operating require- mum fuel savings in load and carry or hill-climb operations. ments with optimum perform- This optional feature allows the operator to activate the sys- ance efficiency. This system is controlled with a dial on the tem on or off with a switch located on the right-side control right side of the control panel. panel. When the system is activated, the torque converter will • Manual: The transmission is fixed to the gear speed and automatically lock-up when the travel speed reaches selected with the gear shift lever. 10.9 km/h 6.8 mph in third gear or 20.9 km/h 13.0 mph in fourth gear. 4 WA380-5 WHEEL LOADER Joystick Steering Lifting Operations Komatsu’s optional joystick steering provides fast, precise The switch pump assists the loader pump to provide operator control for V-type cycle loading. The Komatsu joy- increased lifting speed and power when lifting and loading. stick steering system has both a steering wheel and joystick combination to comfortably fit all operator preferences and When raising lift arm Loader pump operating conditions. Switching pump The Komatsu joystick steering control lever has conveniently Cut-off located gear upshift/downshift switches, a F/N/R directional valve change switch, a high/low articulation speed mode switch Tank and a horn switch. All the oil from the switching pump flows to the work equipment. The raising speed of the lift arm is increased. Transmission Hold Switch ECSS Ride Control This feature compliments the automatic transmission by Ride control is a standard feature for Komatsu and is ideal in allowing the operator to hold the transmission in a desired load and carry operations. The ECSS provides a smooth gear by simply pressing a button on the side of the boom ride in rough ground surfaces which optimizes productivity by lever. improving material retention in the bucket and increasing Transmission Kick-Down Switch operator comfort and control. This feature provides increased rimpull, bucket pile penetra- Load Meter tion and reduced cycle times. The operator can press a but- The new optional Komatsu load meter is now integrated into ton on the top of the boom lever to downshift the transmis- the main monitor display panel for improved readability and sion from second to first gear when digging into the pile. efficiency. The transmission automatically shifts into second gear when changing into reverse gear. The subtotal and cancel switches are located on the bucket control lever for easy operator function. Komatsu also offers The kickdown switch has two new functions: a paper printer option to use with the load meter to record 1. Downshift function one gear at a time from 4th gear to the weight of the material loaded. 1st when in automatic shift mode. 2. Increased rimpull in uphill ramp loading applications. Dual-Speed Hydraulic System Komatsu’s automatic dual-speed hydraulic system increases operational efficiency and productivity by matching the hydraulic demands to the work conditions. Digging Operations Engine power used to operate the switch pump is transferred to the transmission to provide increased rimpull when digging. When digging / scooping Loader pump Switching pump Cut-off valve Tank All the oil from the switching pump returns to the tank. Hydraulic load is reduced and engine power provides maximum rimpull. 5 IINCREASEDNCREASED RRELIABILITYELIABILITY ANDAND SSERVICEABILITYERVICEABILITY Komatsu Components fan, swing-out air-to-air and oil coolers along with the swing- Komatsu manufactures the engine, torque converter, up rear grill and bottom flush-out gates allow the operator to transmission, hydraulic units, and electrical parts on this easily clean the radiator system in adverse operating condi- wheel loader. tions. The variable speed hydraulic fan is temperature acti- Komatsu loaders vated to provide cooling on demand and reduce fuel con- Komatsu Components are manufactured torque converter sumption. with an integrated Full Side-Opening Gull-Wing Engine Doors production sys- Ground level engine service and daily service checks are tem under a made easy with the gas spring assisted full side opening strict quality con- gull-wing doors. trol system. transmission engine front axle rear axle Reversible Extended Service Intervals Hydraulic The new clean running Komatsu SAA6D114E-2 emission- Radiator Fan and Swing-Out Coolers ized engine provides fuel efficient power and extended engine oil and filter service intervals; increased from 250 The new Komatsu cooling system is isolated from the engine hours to 500 hours. to provide more efficient cooling and easier cleaning. The variable speed hydraulic fan is reversible to allow the opera- Improved drive-shaft seals also allow extended greasing tor to quickly clean out the cooling system by turning on a intervals from 1000 hours to 4000 hours. switch located on the right side control panel. The reversible 6 WA380-5 WHEEL LOADER Sealed DT Connectors Wet multi-disc brakes and fully hydraulic braking Main harnesses and controller connectors are equipped system results in lower maintenance costs and higher with sealed DT connectors providing high reliability, dust and reliability. The wet disc service and parking brakes are fully corrosion resistance. sealed and adjustment-free to reduce contamination, wear and maintenance. Added reliability is designed into the Flat Face-to-Face O-Ring nipple braking system by the use of two independent hydraulic cir- Seals cuits providing hydraulic backup should one of the circuits Flat face-to-face O-ring seals are fail. If the brake oil pressure drops, a warning lamp flashes used to securely seal all and an alarm sounds intermittently. If the brake pressure hydraulic hose connections continues to drop, the parking brake is automatically applied hose O-ring and prevent oil leakage. providing a double safety system. Cylinder Buffer Rings Buffer rings are installed to the head-side of the all-hydraulic cylinders to lower the load on the rod seals, prolong cylin- der life by 30% and maximize overall reliability. buffer rings High-Rigidity Frames dust seal rod packing The front and rear frames along with the loader linkage have high rigidity to withstand repeated twisting and bending loads to the loader body and linkage.
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