User manual ZENOAH KOMATSU D275A-5R BROCHURE

[. . . ] See page 9. Low-drive, long-track, seven roller undercarriage ensures outstanding grading ability and stability. Track shoe slip control system (option) See page 7. K-Bogie undercarriage system improves traction, component durability, and operator comfort. See page 6. Photo may include optional equipment. 2 3 D275A-5R C R AW L E R D O Z E R CRAWLER DOZER D275A-5R PALM COMMAND CONTROL SYSTEM (PCCS) Komatsu's ergonomically designed control system "PCCS" creates an operating environment with Power Train Electronic Control System Smooth and soft operation D275A-5R utilizes a newly designed power train electronic control system. The controller registers the amount of operator control (movements of lever and operation of switches) along with machine condition signals from each sensor, to calculate accurately the control of the transmission, steering clutches and brakes for optimal machine operation. The ease of operation and productivity of new D275A-5R is greatly improved through these new features. "complete operator control" . Human-machine Interface Palm command electronic controlled travel control joystick Palm command travel joystick provides the operator with a relaxed posture and superb fine control. [. . . ] The multi-shank ripper is a hydraulically controlled parallelogram ripper with three shanks. Engine The Komatsu SAA6D140E-5 engine delivers 335 kW 449 HP at 2000 rpm. The fuel-efficient Komatsu engine, together with the heavy machine weight, make the D275A-5R a superior crawler dozer in both ripping and dozing production. The engine features direct fuel injection, turbocharger and air-toair aftercooler to maximize fuel efficiency. To minimize noise and vibration, the engine is mounted to the main frame with rubber cushions. remains stable for increased productivity. New features on K-Bogie undercarriage system: K-Bogies oscillate with two fulcrums, and track roller vertical travel is greatly increased. Impact load on all undercarriage components has been reduced and durability of components is improved since track rollers are always in contact with track link. Undercarriage life is improved due to better control of track chain alignment with track rollers. Riding comfort is improved by reducing vibration and shock when traveling over rough terrain. Track shoe slip control system (option) Eliminates the need for the operator to constantly control engine power output with the decelerator while ripping. Maneuverability is improved because the operator is free to focus on the ripping application without having to monitor the track shoe slippage. Repair costs are significantly lowered and undercarriage life is prolonged with the reduction in track shoe slippage. Track shoe slip control panel The track shoe slip control system will contribute to lower fuel costs, because the engine output is automatically controlled to optimum levels for operation. Hydraulic drive radiator cooling fan Fan rotation is automatically controlled depending on coolant and hydraulic oil temperature, saving fuel consumption and providing great productivity with a quiet operating environment. Fulcrum of major bogie Radiator Fan drive hydraulic motor Coolant temperature sensor Hydraulic pump Controller Power train oil temperature sensor Fulcrum of minor bogie 6 7 Photo may include optional equipment. D275A-5R C R AW L E R D O Z E R CRAWLER DOZER D275A-5R WORKING ENVIRONMENT Operator Comfort Operator comfort is essential for productive work. The D275A-5R provides a quiet, comfortable environment where the operator can concentrate on the work at hand. MAINTENANCE Preventative Maintenance Preventative maintenance is the only way to ensure long service life from your equipment. That's why Komatsu designed the D275A-5R with conveniently located maintenance points to make necessary inspections and maintenance quick and easy. Comfortable ride with new cab damper mounting and K-Bogie undercarriage D275A-5R's cab mount uses a new cab damper which provides excellent shock and vibration absorption capacity with its long stroke. Fore and aft sliding rails and suspension spring are reinforced and play of joints is reduced. In addition to turning function for ripper operation, the seat is also tiltable to facilitate down hill dozing. Air suspension seat is also available. Electric priming pump Simply pressing the button enables bleeding air from the fuel circuit at the time of filter replacement, etc. Enclosed hydraulic piping Hydraulic piping for the blade tilt cylinder is completely housed in the push arm, ensuring damage protection from materials. Modular power train design Power train components are sealed in a modular design that allows the components to be dismounted and mounted without oil spillage. Wide link tread Photo may include optional equipment. Low Maintenance Costs New Track Link Design New D275A-5R track links feature increased link tread and link height and track guiding guard shape is improved. The result is improved undercarriage life and reduced cost through maintenance man-hours when turning pins and bushings. Track guiding guard 8 9 High link height D275A-5R C R AW L E R D O Z E R CRAWLER DOZER D275A-5R RELIABILITY FEATURES Filtration Engine Newly added main fuel filter of 2µ and water separator protect the engine against dirt and water in the fuel. SPECIFICATIONS ENGINE STEERING SYSTEM PCCS lever controls for all directional movements. Pushing the PCCS lever forward results in forward machine travel, while pulling it rearward reverses the machine. PCCS lever, joystick controlled wet multiple-disc steering clutches, hydraulically loaded and hydraulically released. Wet multiple-disc, pedal/lever controlled steering brakes are spring loaded hydraulically released and require no adjustment. [. . . ] When calculating the operating weight of dual tilt dozer, add the 50 kg weight of additional hydraulic system to the tractor weight. 12 D275A-5R C R AW L E R D O Z E R STANDARD EQUIPMENT Alternator 75 ampere/24V Backup alarm Batteries 170 Ah/2 x 12V Blower fan Decelerator pedal Dry-type air cleaner with dust evacuator and dust indicator Electric priming pump Final drive case wear guard Hinged front mask ROPS:* Weight . 605 kg 1, 330 lb Hinged underguard with front pull hook Hydraulic track adjusters Lighting system (including four front and two rear lights) Muffler with rain cap Palm lever steering control Perforated side covers Radiator reserve tank ROPS brackets Segmented sprockets Dimensions Width . 1980 mm 6'6" Seven-roller track frames Shoes, 610 mm 24" extreme service, single-grouser Starting motors 11 kW/24 V Suspension seat TORQFLOW transmissions Torque converter Track roller guards Warning horn Wet steering clutches/brakes Height from compartment floor . 1835 mm 6'0" *Meets ISO 3471 and SAE J/ISO 3471 ROPS standards. OPTIONAL EQUIPMENT Air conditioner with heater and defroster Alternator 90 ampere/24 V Batteries 200 Ah/2 x 12V Counterweight Cushion push block Dual tilt dozer Fire extinguisher Hitch Hydraulics for ripper Light for ripper point Mirror, rearview Panel cover Perforated single radiator mask Pusher plate Radio, stereo Seat Air suspension seat Suspension seat --Fabric seat --Fabric seat, high backrest Seat belt Shoes: --710 mm 28" --760 mm 30" Spill guard for Semi-U dozer Spill guard for U dozer Strengthened Semi-U blade Strengthened U blade Sun visor Track shoe slip control system Vandalism protection kit Steel cab:* Weight . [. . . ]