User manual ZENOAH KOMATSU PC138US-8 BROCHURE

[. . . ] By reducing tail swing, the PC138US-8 is perfect for work on road ways, bridges, in urban areas, or anywhere space is limited. The PC138US-8 Series provides the performance and productivity you expect from Komatsu equipment. · Excellent operation in tight quarters with small tail swing radius design · Round profile provides short protrusion of front and rear portion of the upper structure. See pages 6 and 7. Ecology and Economy Features Low Emission Engine A powerful turbocharged and air-to-air aftercooled Komatsu SAA4D95LE-5 provides 68. 4 kW 91. 7 HP. This engine is EPA Tier 3 and EU Stage 3A emissions ready, without sacrificing power or machine productivity. · Wider Working Ranges : Job sites that require a long upper reach, such as demolition and slope cutting also benefit from the increased digging and dumping ranges of the PC138US-8. [. . . ] To achieve both high levels of productivity and economical performance, Komatsu has developed the main components with a total control system. The result is a new generation of high performance and environment-friendly excavators. Engine Heavy duty HPCR (High Pressure Common Rail) system Electronic control unit for engine Main pump Single pump with double flow system Hydraulic control valve Flow divide/merge control with EPC The PC138US-8 exceptional travel performance is provided by single pump with double flow, and it demonstrates superb maneuverability while operating at its optimum travel speed. It exhibits a large drawbar pull for moving on job sites, traveling in rough terrain and climbing steep slopes. P E L B ATT Work priority P mode Fuel priority E mode L mode B mode ATT mode Eco-gauge that Assists Energy-saving Operations Low Emission Engine Komatsu SAA4D95LE-5 is EPA Tier 3 and EU Stage 3A emissions ready. Low Operation Noise Enables low noise operation using the low-noise engine and methods to cut noise at source. Electronically controlled common rail type engine · Multi-staged injection · Highly rigid cylinder block Low noise design · Optimal arrangement of sound absorbing materials · Partition between the cab and engine room · Airtight valve room Weight of counterweight Lifting capacity* The Eco-gauge on the right side of the multi-function color monitor provides environment-friendly energy-saving High Stability The PC138US-8 offers exceptional lifting capacity and high stability with a large cast-iron counterweight that requires no additional clearance. PC138US-8 1290 kg 2, 850 lb 3250 kg 7, 160 lb PC120-6 1150 kg 2, 500 lb 2255 kg 4, 960 lb operation. Allows focus on operation in the green range with reduced CO2 emissions and efficient fuel consumption. Eco-gauge *At maximum reach, ground level height and overside. Idling Caution To prevent unnecessary fuel consumption, an idling caution is displayed on the monitor, if the engine idles for 5 minutes or more. 4 5 PC138US-8 H Y D R A U L I C E X C AVAT O R HYDRAULIC EXCAVATOR PC138US-8 0 OPERATION FEATURES Safe Operation with Small Tail Swing Even in Confined Areas Short Implement Swing Radius: 1980 mm 6'6" boom raising angle of the PC138US-8 is larger than a conventional profile excavator. digging reach 8300 mm 27'3" Wider Working Ranges Raising the boom on the PC138US-8 to a wider angle enhances overall working performance. Job sites that require a long upper reach, such as demolition and slope cutting, also benefit from the increased digging and dumping ranges of the PC138US-8. Round Profile of both Front and Rear Portion of the Upper Structure Komatsu hydraulic excavators with small tail swing radius design adopt the round profile for both left and right corners of the front portion of the upper structure as well as its rear portion that features less protrusion from the track at swing. The round profile design allows the machine to work in tight quarters. Short Tail Swing Radius: 3460 mm 11'4" 1480 mm 4'10" The short tail swing radius of the PC138US-8 allows the machine to work in more confined areas than a conventional machine. Minimum implement swing radius 1980 mm 6'6" Tail swing radius 1480 mm 4'10" PC138US-8 351mm 13. 8'' Protrusion from the track (mirror) 295 mm 11. 6" (hand rail) Reduced implement swing radius 350 mm 1'2" PC120 Reduced tail swing radius 650 mm 2'2" Max. digging height 9340 mm 30'8" 235mm 9. 3'' Protrusion from the track (rear) 235mm 9. 3'' Protrusion from the track (rear) PC138US-8 Max. digging depth 5480 mm 18'0" 144mm 5. 7'' Protrusion from the track (handrail) Roadwork When performing roadwork, protrusion of the machine into the unoccupied lane is kept minimal since the rear portion of the upper structure protrudes slightly from the track at swing. This allows a dump truck to be positioned closer to the track of the machine. The operator is able to load materials efficiently onto the front of the dump body at ease since ample dumping reach is assured for the loading. Large working space is not required for the machine. Logging and forest roadwork Since the protrusion of the rear portion of the upper structure is kept minimal, there is less possibility of the counterweight hitting against a tree or a slope, allowing the operator to operate the machine at ease. The cab mount system absorbs shocks and aids vibration reduction to provide comfortable ride. Retractable Seat Belt Easy-to-use retractable seat belt is employed. Lock Lever When lock lever is placed in lock position all hydraulic controls (travel, swing, boom, arm and Sliding Convex Door The sliding convex door facilitates easy entrance in confined areas. Tempered and Tinted Glass The glass features high strength and Rubber Silicon Oil bucket) are inoperable. Skylight Skylight with window can be opened for overhead visibility. Lever shown in lock position blocks ultraviolet rays. Pressurized Cab Auto air conditioner, air filter and a higher internal air pressure prevent external dust from entering the cab. 8 9 PC138US-8 H Y D R A U L I C E X C AVAT O R MAINTENANCE FEATURES Easy Maintenance Komatsu designed the PC138US-8 to have easy service access. By doing so, routine maintenance and servicing are less likely to be skipped, which can mean a reduction in costly downtime later on. Here are some of the many service features found on the PC138US-8. Large TFT LCD Monitor Equipped with the Fuel Pre-filter (with Water Separator) Removes water and contaminants in the fuel to prevent fuel problems. Side-by-side Cooling The oil cooler, aftercooler and radiator are installed side by side. In addition, the operator can remove and install the aftercooler, radiator and oil cooler in a short time. Oil cooler Aftercooler Radiator Dust-proof net Large multi-lingual LCD Monitor A large user-friendly color monitor enables safe, accurate and smooth work. Improved screen visibility is achieved by the use of TFT liquid crystal display that can easily be read at various angles and lighting conditions. Displays data in 12 languages to globally support operators around the world. Indicators 1 Auto-decelerator Working mode EMMS (Equipment Management Monitoring System) Monitor function Controller monitors engine oil level, coolant temperature and battery charge, etc. If controller finds any abnormality, it is displayed on the LCD. Washable Floor Optimum Maintenance Layout With the left and right side service doors, it is possible to access the major maintenance points from ground level. [. . . ] 7 each side COOLANT AND LUBRICANT CAPACITY (REFILLING) HYDRAULICS SYSTEM Type . HydrauMind (Hydraulic Mechanical Intelligence New Design) system, Closed-center system with load-sensing valve and pressure-compensated valve Main pump: Type . 1 x piston motor with swing holding brake Relief valve setting: Implement, travel circuit . 3. 2 MPa 33 kgf/cm2 470 psi Hydraulic cylinders: (Number of cylinders ­ bore x stroke) Boom . [. . . ]