D155AX - Komatsu Ltd.

1 HORSEPOWER. Gross: 268 kW 360 HP @ 1900 rpm STANDARD EQUIPMENT FOR BASE MACHINE. Net: 264 kW 354 HP @ 1900 rpm Air cleaner, double element with dust Hydraulics for dozer Track roller guard, end sections indicator Hydrostatic steering (HSS) system Track shoe assembly OPERATING WEIGHT. Alternator, 50 ampere Lighting system (includes 2 front, 1 rear) Sealed and lubricated track 39500 kg 87,100 lb Batteries, 2 x 12V 170 Ah Muffler with rain cap Underguards, oil pan and transmission Blower cooling fan Palm lever steering control 560 mm 22" single grouser shoe Color monitor Radiator with reserve tank D155AX -6. Decelerator pedal Rear cover Fenders Starting motor, 11kW/24V. Horn, warning Suspension seat OPTIONAL EQUIPMENT. ROPS cab Shoes D. Additional weight: 700 kg 1,545 lb All-weather, enclosed pressurized cab Dimensions: Shoes (optional). 560 mm 22". Additional weight Ground contact area 155AX. Length: 1735 mm 5'8" single-grouser shoes 0 kg 0 lb 36680 cm2 5,685 in2. Width: 1755 mm 5'9" 610 mm 24".

2 CRAWLER DOZER. single-grouser shoes +200 kg +440 lb 39955 cm2 6,193 in2. Height from floor: 1635 mm 5'4". Meets ISO 3471, SAE J1040 APR88 ROPS standards, and ISO 660 mm 26". single-grouser shoes +410 kg +905 lb 43230 cm2 6,700 in2. 3449 FOPS standard. 710 mm 28". Variable multi-shank ripper single-grouser shoes +620 kg +1,370 lb 46505 cm2 7,208 in2. Additional weight (including hydraulic control unit): 3760 kg 8,290 lb 560 mm 22". Beam length: 2320 mm 7'7" extreme service shoes +460 kg 1,015 lb 36680 cm2 5,685 in2. Hydraulically-controlled parallelogram-type ripper with three shanks. 610 mm 24". Digging angle infinitely adjustable. extreme service shoes +700 kg +1,545 lb 39955 cm2 6,193 in2. Standard digging angle*: 49 660 mm 26". extreme service shoes +940 kg +2,070 lb 43230 cm2 6,700 in2. Maximum digging depth: 900 mm 2'11". Maximum lift above ground: 950 mm 3'1". Variable giant ripper Other Additional weight (including hydraulic control unit): 2440 kg 5,380 lb Air conditioner Beam length: 1400 mm 4'7" Backup alarm Hydraulically-controlled parallelogram-type ripper with one shank.

3 Cab heater and defroster Digging angle infinitely adjustable. Engine side cover Standard digging angle*: 49 Locks, filler caps and covers Maximum digging depth: 1240 mm 4'1" Rear view monitoring system Maximum lift above ground: 950 mm 3'1" Rigid drawbar Tool kit * Measured with ripper point on ground and shank vertical. Printed in Japan 200809 (05). Photo may include optional equipment. CEN00103-02 Materials and specifications are subject to change without notice. is a trademark of Komatsu Ltd. Japan. D155AX -6 C R AW L E R D O Z E R CRAWLER DOZER. D155AX -6. WALK-AROUND New integrated ROPS cab includes: HORSEPOWER. Gross: 268 kW 360 HP @ 1900 rpm Net: 264 kW 354 HP @ 1900 rpm Large quiet operator environment OPERATING WEIGHT. Comfortable ride with new cab damper 39500 kg 87,100 lb OUTSTANDING PRODUCTIVITY & Excellent visibility without ROPS post BLADE CAPACITY. FUEL ECONOMY PCCS (Palm Command Control System) High capacity air conditioning system (optional). SIGMADOZER: m3 yd3.

4 Electronic controlled PCCS travel control Pressurized cab (optional). Innovative SIGMADOZER reduces digging Electronic controlled PCCS blade/ripper control Adjustable armrests and suspension seat resistance and demonstrates smooth material roll up Fuel control dial See page 8. to increase blade load. Automatic/manual gearshift selectable mode Blade capacity m3 yd3. See page 4. Gearshift pattern preset function HSS (Hydrostatic Steering System). Automatic transmission with lockup torque ECMV controlled transmission provides smooth, quick, and powerful control See page 7. in various ground conditions. converter increases speed and power to improve fuel consumption and productivity. See page 5. SAA6D140E-5 turbocharged after-cooled Large TFT LCD monitor diesel engine provides an output of 264 kW 354 HP Easy-to-see and use 7" large multi-color with excellent productivity, while meeting EPA Tier 3 and monitor. EU stage 3A emission regulations. See page 6. Can be displayed in 10 languages for global support.

5 TFT : Thin Film Transistor LCD : Liquid Crystal Display Hydraulic drive radiator cooling See page 8. fan controlled automatically, reduces fuel consumption and operating noise levels. See page 6. Gull-wing engine side covers for easy and efficient engine servicing See page 9. Blade tilt lines completely protected. Newly designed ripper offers excellent ripper visibility. Increased-track length, Photos may include optional equipment. See page 8. seven roller undercarriage ensures outstanding grading ability and stability. Modular power train for increased serviceability and durability. Forward mounted pivot shafts isolate final drives from blade loads. High-rigidity, simple hull frame Extra-low machine profile K-Bogie undercarriage system and monocoque track frame with pivot See page 9. provides excellent machine balance and low center of gravity. improves traction, component durability, and shaft for greater reliability. operator comfort. See page 9. Wet disc brakes require less maintenance.

6 See page 9. 2 3. D155AX -6 C R AW L E R D O Z E R CRAWLER DOZER. D155AX -6. PRODUCTIVITY & FUEL ECONOMY FEATURES Outstanding fuel economy Automatic transmission with lockup torque Automatic transmission with lockup torque converter converter Fuel consumption decreased by 10%. A sharp reduction in fuel consumption and greater power (compared with our conventional model). train efficiency is achieved by the new automatic gearshift Lockup mechanism of torque 70. transmission and lock up torque converter. The automatic Travel performance curve converter is automatically gearshift transmission selects the optimal gear range actuated to transfer engine 60. depending on the working conditions and load placed on power directly to the Fuel economy through transmission in usual dozing effective usage of engine the machine. This means the machine is always operating speed range. Locking up the 50 power (Decreased by 10%). at maximum efficiency. (Manual gearshift mode is selectable torque converter eliminates Drawbar pull ton loss of horsepower by 10%.)

7 40. with a switch). Because the electronically Automatic lockup Engine Torque Transmission controlled engine is extremely ON in the practical 30. converter efficient, a decrease in fuel dozing work range consumption is realized while Komatsu 20. Automatic gearshift mode also maintaining machine SAA6D140E-5 engine Lockup OFF Manual power. gearshift mode 10. SIGMADOZER. 0. 5 10. Lockup ON Travel speed (km/h). New fuel efficient bulldozer SIGMADOZER. New D155AX -6 has achieved both high levels of PRODUCTION: Automatic/manual gearshift selectable mode productivity and fuel economy through usage of 15%. increase FUEL Automatic or manual gearshift modes can be selected with ease to suit the work at hand by simply pressing the switch on SIGMADOZER and automatic transmission with EFFICIENCY: the multi-monitor (selection at neutral). lockup torque converter. SIGMADOZER developed Automatic gearshift mode based on completely new digging theory dramatically increases production. New transmission with high power transmission efficiency greatly reduces fuel Automatic transmission with lockup torque converter FUEL.

8 CONSUMPTION: 25%. increase The mode for general dozing. When a load is applied, the gear automatically shifts down, and when the load is off, it automatically shifts up to a set maximum gear speed. This mode economizes both fuel and production where the torque converter lockup mechanism is actuated according to load, automatically selecting the optimum gear speed. consumption. This bulldozer significantly improves 10%. decrease (Compared with our conventional model) Manual gearshift mode fuel efficiency compared with our conventional model. The mode for dozing and ripping rough ground. When loaded, the gear automatically shifts down, but does not shift up when the load is off. Outstanding productivity Production increased by 15%. SIGMADOZER (compared with our conventional model). Automatic gearshift Manual gearshift Based on a completely new digging theory, SIGMADOZER flow of earth, enabling the dozing of larger quantities of soil mode screen mode screen dramatically improves dozing performance and increases with less power.

9 In addition, adoption of a new blade linkage productivity. A new frontal design concept adopted for system holds the blade closer to the tractor for improved digging and rolling up at the center of the blade increases visibility, enhanced digging force and reduced lateral sway soil holding capacity, simultaneously reducing sideway of the blade. This is the new generation blade. spillage. Reduced digging resistance produces smoother D155AX -6 D155AX -5. SIGMADOZER Semi-U blade Shape of Shape of dozed material dozed material SIGMADOZER Semi-U blade 4 5. D155AX -6 C R AW L E R D O Z E R CRAWLER DOZER. D155AX -6. ECOLOGY FEATURES CONTROL FEATURES. Human-Machine Interface PCCS (Palm Command Control System). Komatsu 's ergonomically designed control system PCCS creates an operating environment with complete operator control .. Palm command electronic controlled travel Palm command electronic controlled blade/ripper control joystick control joystick UP SHIFT. Engine Palm command travel joystick provides the operator with a relaxed LH.

10 F Electronically- controlled palm Blade control joystick Ripper control joystick posture and superb fine control command joystick is Fuel efficient electronic controlled engine R RH. without operator fatigue. equipped for blade/. DOWN SHIFT. The Komatsu SAA6D140E-5 engine delivers 264 kW 354 Transmission gear shifting is ripper control. HP at 1900 rpm. The fuel-efficient, powerful Komatsu engine simplified with thumb push buttons. Combined with the Multi-monitor makes the D155AX superior in both ripping and dozing highly reliable Controller operations. The engine is EPA Tier 3 and EU stage 3A Gearshift pattern preset function Komatsu hydraulic emission regulation certified. The engine is turbocharged When the gearshift pattern is set to either <F1-R2>, <F2- system, superb control and features direct fuel injection and air-to-air aftercooling to R2> or <F2-R3L> in automatic gearshift mode, the gear is is the result. maximize power, fuel efficiency and emission compliance. automatically shifted, reducing round trip repetition work Komatsu develops and produces all major components, To minimize noise and vibration, the engine is mounted to time and operator's efforts.