Specifications - Komatsu D155A-6 Brochure

D155A
C D
-6 R A W L E R
S
PECIFICATIONS
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 in
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
TORQFLOW TRANSMISSION
Komatsu's automatic TORQFLOW transmission consists of a water-
cooled, 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 Forward Reverse
1st 3.9 km/h 2.4 mph 4.7 km/h 2.9 mph
2nd 5.7 km/h 3.5 mph 6.8 km/h 4.2 mph
3rd L 7.5 km/h 4.7 mph 9.2 km/h 5.7 mph
3rd 11.4 km/h 7.1 mph 13.7 km/h 8.5 mph
US ton kN ton
70
70
600
60
60
500
50
F1
50 D155A-6
Power Shift
400
40
40 DRAWBAR PULL VS SPEED.
MAXIMUM USABLE PULL
300
30
DEPENDS ON TRACTION AND
30
WEIGHT OF TRACTOR INCLUDING
MOUNTED EQUIPMENT.
200 20
20
F2
100 10
10
F3
F3L
0 0 0
0 2 4 6 8 10
0 1 2 3 4 5 6 7
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
O Z E R
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 spring-
3
actuated and hydraulically released. Gearshift lock lever also applies
parking brakes.
Minimum turning radius . . . . . . . . . . . . . . . . . . . . . . . . . . 2.14 m 7'0"
UNDERCARRIAGE
Suspension. . . . . . . . . . . . . . . . . . Oscillation-type with equalizer bar
and forward mounted pivot shafts
Track roller frame . . . . . . . . . . . . . . . . . . . . Monocoque, high-tensile-
strength 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 cm
Ground pressure (tractor only) . . . . . . 90.2 kPa 0.92 kg/cm
Number of track rollers (each side) . . . . . . . . . . . . . . . . . . . . . . . . . 7
Number of carrier rollers (each side) . . . . . . . . . . . . . . . . . . . . . . . . 2
COOLANT AND LUBRICANT
CAPACITY ( )
REFILL
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
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.
12 km/h
Ground pressure. . . . . . . . . . . . . . 115.8 kPa 1.18 kg/cm
mph
DIMENSIONS
A 4130 mm
B 2140 mm
C 3510 mm
D 1790 mm
E 3150 mm
F 8680 mm
G 3100 mm
H 1370 mm
I 900 mm
J 3395 mm
Ground clearance: 500 mm 1' 8"
HYDRAULIC SYSTEM
Closed-center load sensing system (CLSS) designed for precise and
responsive control, and for efficient simultaneous operation.
2 5,468 in 2
2 13.1 psi
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/cm
Control valves:
Spool control valve for Semi-U tilt dozer and Full-U tilt dozer.
165 U.S. gal
Positions: Blade lift . . . . . . . . . . . . . . . Raise, hold, lower, and float
21.7 U.S. gal
Blade tilt . . . . . . . . . . . . . . . . . . . . . Right, hold, and left
9.8 U.S. gal
0.4 U.S. gal
Additional control valve required for variable digging angle
multi-shank ripper and giant ripper.
23.8 U.S. gal
Positions: Ripper lift . . . . . . . . . . . Raise, hold, and lower and float
8.2 U.S. gal
Ripper tilt . . . . . . . . . . . . . Increase, hold, and decrease
Hydraulic cylinders . . . . . . . . . . . . . . . . . . . . . . Double-acting, piston
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
2 16.8 psi
with dozer
Semi-U 6010 mm
Tilt Dozer 19'9"
Strengthened 6010 mm
Semi-U Tilt Dozer 19'9"
Full-U 6430 mm
Tilt Dozer 21'1"
Angle 6580 mm
Dozer 21'7"
CRAWLER DOZER
13'7"
7'
11'6"
5'10"
10'4"
A
28'6"
10'2"
4'6"
2'11"
11'2"
C
D
E
F
Number of cylinders
Blade Lift
Blade Tilt
Ripper Lift
Ripper Tilt
2 3,980 psi
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
Blade Blade Maximum lift Maximum drop
capacity length x height above ground below ground
9.4 m 3 4130 mm x 1790 mm 1250 mm 590 mm
12.3 yd 3 13'7" x 5'10" 4'1"
9.4 m 3 4130 mm x 1790 mm 1250 mm 590 mm
12.3 yd 3 13'7" x 5'10" 4'1"
11.9 m 3 4225 mm x 1790 mm 1250 mm 590 mm
15.6 yd 3 13'10" x 5'10" 4'1"
4.6 m 3 4850 mm x 1170 mm 1560 mm 660 mm
6.0 yd 3 15'11" x 3'10" 5'1"
D155A
WA380-6 -6
WA380
-6
B
J
I
G.L
G
H
Bore
2 110 mm 4.33"
1 160 mm 6.30"
1 180 mm 7.09"
1 200 mm 7.87"
22.5 U.S. gal
22.5 U.S. gal
9.8 U.S. gal
9.8 U.S. gal
Maximum tilt Additional
adjustment weight
950 mm 4960 kg
1'11" 3'1" 10,940 lb
950 mm 5620 kg
1'11" 3'1" 12,390 lb
970 mm 5630 kg
1'11" 3'2" 12,410 lb
520 mm 5170 kg
2'2" 1'8" 11,400 lb
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