Komatsu
Komatsu
Komatsu
Air cleaner, double element with dust indicator Alternator, 60 ampere Backup alarm Batteries, 2 x 12V 170 Ah Blower cooling fan Color monitor Decelerator pedal Electric priming pump Fenders Horn, warning
HORSEPOWER Gross: 268 kW 360 HP @ 1900 rpm Net: 264 kW 354 HP @ 1900 rpm
Track shoe assembly Sealed and lubricated track Underguards, oil pan and transmission 560 mm 22" single grouser shoe
Hydraulics for dozer Lighting system (includes 2 front, 1 rear) Muffler with rain cap Open ROPS Palm lever steering control Radiator with reserve tank Rear cover Starting motor, 11kW/24V Suspension seat Track roller guard, end sections
OPERATING WEIGHT 41700 kg 91,930 lb BLADE CAPACITY Semi-U DOZER: 9.4 m3 12.3 yd3
D155A-6
Additional weight -0 kg +200 kg +410 kg +610 kg +450 kg +690 kg +920 kg -0 lb +440 lb +900 lb +1,340 lb +990 lb +1,520 lb +2,030 lb Ground contact area
OPTIONAL EQUIPMENT ROPS cab Additional weight: 430 kg 948 lb All-weather, enclosed pressurized cab Dimensions: Length: 1735 mm 5'8" Width: 1755 mm 5'9" Height from floor: 1635 mm 5'4" Meets ISO 3471, SAE J/ISO 3471 ROPS standards, and ISO 3449 FOPS standard. Variable multi-shank ripper Additional weight (including hydraulic control unit): 3760 kg 8,290 lb Beam length: 2320 mm 7'7" Hydraulically-controlled parallelogram-type ripper with three shanks. Digging angle infinitely adjustable. Standard digging angle: 45 Maximum digging depth: 900 mm 2'11" Maximum lift above ground: 950 mm 3'1" Variable giant ripper Additional weight (including hydraulic control unit): 3380 kg 7,450 lb Beam length: 1410 mm 4'8" Hydraulically-controlled parallelogram-type ripper with one shank. Digging angle infinitely adjustable. Standard digging angle: 45 Maximum digging depth: 1370 mm 4'6" Maximum lift above ground: 945 mm 3'1" SIGMADOZER
Overall length with dozer SIGMADOZER Strengthened SIGMADOZER 6125 mm 20'1" 6125 mm 20'1" Blade capacity 9.4 m3 12.3 yd3 9.4 m3 12.3 yd3 Blade length x height 4060 mm x 1850 mm 13'4" x 6'1" 4060 mm x 1850 mm 13'4" x 6'1" Maximum lift Maximum drop Maximum tilt above ground below ground adjustment 1320 mm 4'4" 1320 mm 4'4" 617 mm 2' 617 mm 2' 920 mm 3' 920 mm 3' Additional weight 4940 kg 10,890 lb 5360 kg 11,820 lb
D
Shoes
Shoes (optional) 560 mm 22" single-grouser shoes 610 mm 24" single-grouser shoes 660 mm 26" single-grouser shoes 710 mm 28" single-grouser shoes 560 mm 22" extreme service shoes 610 mm 24" extreme service shoes 660 mm 26" extreme service shoes
155A
CRAWLER DOZER
35280 cm2 38430 cm2 41580 cm2 44730 cm2 35280 cm2 38430 cm2 41580 cm2
5,468 in2 5,957 in2 6,445 in2 6,933 in2 5,468 in2 5,957 in2 6,445 in2
Other Air conditioner Cab heater and defroster Engine side cover Large pre-cleaner Locks, filler caps and covers Rear view monitoring system Rigid drawbar Tool kit
SIGMADOZER
www.Komatsu.com
CEN00255-02
Materials and specifications are subject to change without notice is a trademark of Komatsu Ltd. Japan
D155A-6
C R AW L E R D O Z E R
New integrated ROPS cab includes: Large quiet operator environment Comfortable ride with new cab damper Excellent visibility without ROPS post Two-position seat High capacity air conditioning system
(optional) Pressurized cab (optional) Adjustable armrests and suspension seat (optional) See page 7.
CRAWLER DOZER
D155A-6
HORSEPOWER Gross: 268 kW 360 HP @ 1900 rpm Net: 264 kW 354 HP @ 1900 rpm OPERATING WEIGHT 41700 kg 91,930 lb BLADE CAPACITY Semi-U DOZER: 9.4 m3 12.3 yd3
WALK-AROUND
Large blade capacity:
9.4 m3 12.3 yd3 (Semi-U dozer) and 11.9 m3 15.6 yd3 (U dozer) See page 4.
PCCS (Palm Command Control System) Electronic controlled PCCS travel control Hydraulic controlled PCCS blade/ripper control Fuel control dial Automatic/manual gearshift selectable mode Gearshift pattern preset function ECMV (Electronic Controlled Modulation Valve)
controlled transmission See page 6.
Torque converter
having ample powertransmitting capacity in reserve. See page 4.
Large TFT LCD monitor Easy-to-see and use 7" large multi-color monitor Can be displayed in 10 languages for global support Advanced monitoring system for early troubleshooting
TFT : Thin Film Transistor LCD : Liquid Crystal Display
See page 7.
Extra-low machine profile provides excellent machine balance and low center of gravity. Wet disc brakes require less maintenance.
See page 8.
Filtration
Further enhanced reliability of the machine against fuel contamination thanks to the improvement in filtration. See page 9.
2
High-rigidity, simple hull frame and monocoque track frame with pivot shaft for greater reliability. See page 8.
D155A-6
C R AW L E R D O Z E R
CRAWLER DOZER
PRODUCTIVITY FEATURES
Automatic transmission with torque converter
Greater power train efficiency is achieved by the new automatic gearshift transmission. The automatic gearshift transmission selects the optimal gear range depending on the working conditions and load placed on the machine. This means the machine is always operating at maximum efficiency. (Manual gearshift mode is selectable with a switch)
D155A-6 WA380-6
Engine
Fuel-efficient electronic controlled engine
The Komatsu SAA6D140E-5 engine delivers 264 kW 354 HP at 1900 rpm. The fuel-efficient, powerful Komatsu engine makes the D155A superior in both ripping and dozing operations. The engine is turbocharged and features direct fuel injection and air-to-air aftercooling to maximize power. To minimize noise and vibration, the engine is mounted to the main frame with rubber cushions.
Fan drive hydraulic motor Coolant temperature sensor Radiator
Hydraulic pump
Controller
Ripper performance
Ripper cylinders are reduced from four to two, greatly improving rear visibility during ripping. Also, expanded ripper movement offers a wider range of operation.
Undercarriage
Field-proven low-drive, rigid type undercarriage
Komatsus unique low-drive undercarriage features less shoe slippage compared with other types of undercarriage. The undercarriage follows the ground firmly for increased drawbar pull. Large strengthened shoes have been proven to be highly durable in various job sites all over the world. Length of track on ground: 3150 mm (104)
D155A-2
D155A-6
D155A-6
C R AW L E R D O Z E R
CRAWLER DOZER
CONTROL FEATURES
D155A-6 WA380-6
WORKING ENVIRONMENT
A large user-friendly color monitor enables, accurate and smooth work. Improved screen visibility is achieved by use of TFT liquid crystal display that can easily be read at various angles and lighting conditions. Simple and easy to operate switches. Industry first function keys facilitate multifunction operations. Display data in 10 languages to globally support operators around the world.
Silicon oil Spring
F1-R1 MODE
Press DOWN switch Press UP switch
F1-R2 MODE
Press DOWN switch
DOWN
F1-R2 MODE
Press DOWN switch Press UP switch
Press UP switch
F2-R2 MODE
Press DOWN switch Press UP switch
F2-R2 MODE
F2-R3L MODE
Indicators
Deceleration pedal
Brake pedal potentiometer Air conditioner controller Engine controller Steering and transmission controller
Function switches
Engine
Torque converter
D155A-6
C R AW L E R D O Z E R
CRAWLER DOZER
MAINTENANCE FEATURES
Preventative maintenance
Preventative maintenance is the only way to ensure long service life from your equipment. Thats why Komatsu designed the D155A-6 with conveniently located maintenance points to make necessary inspections and maintenance quick and easy.
D155A-6 WA380-6
Dust-proof measures
Large fresh air pre-cleaner is also provided as optional equipment. The hydraulic tank and the fuel tank are equipped with a high-filtration breather with pressure valve to help prevent dust from entering.
High-filtration breather
Sealed DT connectors
Main harnesses and controller connectors are equipped with sealed DT connectors providing high reliability, as well as water and dust resistance.
Disc brakes
Wet disc brakes require less maintenance.
Track frame
D155A-6
C R AW L E R D O Z E R
DIMENSIONS A B 4130 mm 2140 mm 3510 mm 1790 mm 3150 mm 8680 mm 3100 mm 1370 mm 900 mm 3395 mm 13'7" 7' 11'6" 5'10" 10'4" 28'6" 10'2" 4'6" 2'11" 11'2"
CRAWLER DOZER
SPECIFICATIONS
ENGINE Model . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Komatsu SAA6D140E-5 Type. . . . . . . . . . . . . . . . . . . . . 4-cycle, water-cooled, direct injection Aspiration . . . . . . . . . . . . . . . . . . Turbocharged, air-to-air aftercooled Number of cylinders . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 Bore x stroke . . . . . . . . . . . . . . . . . 140 mm x 165 mm 5.51" x 6.50" Piston displacement. . . . . . . . . . . . . . . . . . . . . . . . . 15.24 ltr 930 in3 Governor . . . . . . . . . . . . . . . . . . All-speed and mid-range, electronic Horsepower SAE J1995 . . . . . . . . . . . . . . . . . . . . . . . . . Gross 268kW 360HP ISO 9249 / SAE J1349* . . . . . . . . . . . . . . . . . . Net 264kW 354HP Rated rpm. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1900rpm Fan drive type . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Hydraulic Lubrication system Method . . . . . . . . . . . . . . . . . . . . . . . Gear pump, force lubrication Filter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Full-flow
*Net horsepower at the maximum speed of radiator cooling fan . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 239kW 320HP
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. Simply tilt the PCCS lever to the left to make a left turn. Tilt it to the right for a right turn. Wet, multiple-disc, pedal-controlled service brakes are springactuated and hydraulically released. Gearshift lock lever also applies parking brakes. Minimum turning radius . . . . . . . . . . . . . . . . . . . . . . . . . . 2.14 m 7'0"
C D E F G H I J
UNDERCARRIAGE Suspension. . . . . . . . . . . . . . . . . . Oscillation-type with equalizer bar and forward mounted pivot shafts Track roller frame . . . . . . . . . . . . . . . . . . . . Monocoque, high-tensilestrength steel construction Track shoes Lubricated tracks. Unique dust seals for helping prevent entry of foreign abrasives into pin-to-bushing clearance for extended service. Track tension easily adjusted with grease gun. Number of shoes (each side) . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41 Grouser height . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 80 mm 3.1" Shoe width (standard/maximum) . . . . . . . . 560 mm 22"/710 mm 28" Ground contact area . . . . . . . . . . . . . . . . . . . . . 35280 cm2 5,468 in2 Ground pressure (tractor only) . . . . . . 90.2 kPa 0.92 kg/cm2 13.1 psi Number of track rollers (each side) . . . . . . . . . . . . . . . . . . . . . . . . . 7 Number of carrier rollers (each side) . . . . . . . . . . . . . . . . . . . . . . . . 2 COOLANT AND LUBRICANT CAPACITY (REFILL)
Ground clearance: 500 mm 1' 8"
C D I
G.L
TORQFLOW TRANSMISSION Komatsus automatic TORQFLOW transmission consists of a watercooled, 3-element, 1-stage, 1-phase torque converter, and a planetary gear, multiple-disc clutch transmission which is hydraulically actuated and force-lubricated for optimum heat dissipation. Gearshift lock lever and neutral switch prevent machine from accidental starts. Travel speed 1st 2nd 3rd L 3rd
US ton kN
E F
G H
HYDRAULIC SYSTEM Closed-center load sensing system (CLSS) designed for precise and responsive control, and for efficient simultaneous operation. Hydraulic control unit: All spool control valves externally mounted beside the hydraulic tank. Variable piston pump with capacity (discharge flow) of 200 ltr/min 52.8 U.S. gal/min for implement at rated engine rpm. Relief valve setting . . . for implement 27.5 MPa 280 kg/cm2 3,980 psi Control valves: Spool control valve for Semi-U tilt dozer and Full-U tilt dozer. Positions: Blade lift . . . . . . . . . . . . . . . Raise, hold, lower, and float Blade tilt . . . . . . . . . . . . . . . . . . . . . Right, hold, and left Additional control valve required for variable digging angle multi-shank ripper and giant ripper. Positions: Ripper lift . . . . . . . . . . . Raise, hold, and lower and float Ripper tilt . . . . . . . . . . . . . Increase, hold, and decrease Hydraulic cylinders . . . . . . . . . . . . . . . . . . . . . . Double-acting, piston Blade Lift Blade Tilt Ripper Lift Ripper Tilt
Forward 3.9 km/h 2.4 mph 5.7 km/h 3.5 mph 7.5 km/h 4.7 mph 11.4 km/h 7.1 mph
ton 70
Reverse 4.7 km/h 2.9 mph 6.8 km/h 4.2 mph 9.2 km/h 5.7 mph 13.7 km/h 8.5 mph
Number of cylinders 2 1 1 1
Bore 110 mm 4.33" 160 mm 6.30" 180 mm 7.09" 200 mm 7.87" 22.5 U.S. gal 22.5 U.S. gal 9.8 U.S. gal 9.8 U.S. gal
70 600 60 500 50 60
F1
Drawbar Pull
Fuel tank . . . . . . . . . . . . . . . . . . . . . . . . . . . . 625 ltr Coolant. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 82 ltr Engine oil . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37 ltr Damper . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.5 ltr Transmission, bevel gear and steering system . . . . . . . . . . . . . . . . . . . 90 ltr Final drive (each side). . . . . . . . . . . . . . . . . . . . 31 ltr
165 U.S. gal 21.7 U.S. gal 9.8 U.S. gal 0.4 U.S. gal 23.8 U.S. gal 8.2 U.S. gal
Hydraulic oil capacity (refill): Semi-U tilt dozer . . . . . . . . . . . . . . . . . . . . . . 85 ltr U-tilt dozer . . . . . . . . . . . . . . . . . . . . . . . . . . 85 ltr Ripper equipment (additional volume): Multi-shank ripper . . . . . . . . . . . . . . . . . . . . 37 ltr Giant ripper . . . . . . . . . . . . . . . . . . . . . . . . . 37 ltr
OPERATING WEIGHT Tractor weight . . . . . . . . . . . . . . . . . . . . . . . . . . . 32300 kg 71,200 lb Including rated capacity of lubricant, coolant, full fuel tank, operator and standard equipment Operating weight . . . . . . . . . . . . . . . . . . . . . . . . 41700 kg 91,930 lb Including Strengthened Semi U, giant ripper, cab, operator, standard equipment, rated capacity of lubricant, coolant, and full fuel tank.
F2
100 10
DOZER EQUIPMENT Use of high-tensile-strength steel in moldboard for strengthened blade construction. Blade tilt hose piping is mounted inside the dozer push arm to help prevent damage. Overall length with dozer 6010 mm 19'9" 6010 mm 19'9" 6430 mm 21'1" 6580 mm 21'7" Blade capacity 9.4 m3 12.3 yd3 9.4 m3 12.3 yd3 11.9 m3 15.6 yd3 4.6 m3 6.0 yd3 Blade length x height 4130 mm x 1790 mm 13'7" x 5'10" 4130 mm x 1790 mm 13'7" x 5'10" 4225 mm x 1790 mm 13'10" x 5'10" 4850 mm x 1170 mm 15'11" x 3'10" Maximum lift above ground 1250 mm 4'1" 1250 mm 4'1" 1250 mm 4'1" 1560 mm 5'1" Maximum drop below ground 590 mm 1'11" 590 mm 1'11" 590 mm 1'11" 660 mm 2'2" Maximum tilt adjustment 950 mm 3'1" 950 mm 3'1" 970 mm 3'2" 520 mm 1'8" Additional weight 4960 kg 10,940 lb 5620 kg 12,390 lb 5630 kg 12,410 lb 5170 kg 11,400 lb
10
F3 F3L
0 0
0 0 1
2 2
4 3
6 4
8 5 6
10 7
12 km/h mph
Ground pressure. . . . . . . . . . . . . . 115.8 kPa 1.18 kg/cm2 16.8 psi Semi-U Tilt Dozer Strengthened Semi-U Tilt Dozer Full-U Tilt Dozer Angle Dozer
Travel Speed
FINAL DRIVES Double-reduction, spur and planetary final drives increase tractive effort. Segmented sprockets are bolt-on for easy in-the-field replacement.
10
11