Komatsu Traction Control System (KTCS) Automatically engages the inter axle differential locks and the KTCS braking to provide optimal traction in soft ground conditions. Increased body capacity yields a 40 metric ton / 44.1 US ton payload. High performance and environment-friendly SAA6D140E-6 engine: • EPA Tier 4 Interim and EU Stage 3B emissions certified. • Engine power mode selection system realizes both greater productivity and improved fuel economy. Komatsu Variable Geometry Turbocharger (KVGT) uses a hydraulic actuator to provide optimum air flow under all speed and load conditions. Komatsu Diesel Particulate Filter (KDPF) captures 90% of particulate matter and provides automatic regeneration that does not interfere with daily operation. Advanced diagnostic system continuously monitors machine operation and vital systems to identify machine issues and assist with troubleshooting. Large LCD color monitor panel: • 7" high resolution screen • Provides "Eco-Guidance" for fuel efficient operation Wide, spacious cab with excellent visibility: • Center-located operator's seat • Short nose design • The rounded engine hood provides improved front visibility • Color rearview monitoring system • The wide cab offers a comfortable operator and passenger environment For operator comfort: • Low noise cab through improved sealing with integrated floor. Interior noise level 72 dB(A) • Air suspension seat • Radio with AUX terminal Komatsu designed, electronically controlled transmission for a comfortable ride. F6-R2 counter-shaft type transmission with K-ATOMiCS (Komatsu Advanced Transmission with Optimum Modulation Control System). High capacity, reliable, continuously cooled, wet type multiple-disc brakes and retarder: • Fully hydraulic controlled wet multiple-disc brakes • Retarder absorbing capacity (continuous descent) 510 kW / 693 HP Hydro-pneumatic suspension for all terrains. The hydro-pneumatic suspension on both front and rear suspensions assures a comfortable ride even over rough terrain. Easy-to-load body: • Heaped capacity 24 m³ / 34.1 yd³ • Low loading height 3164 mm / 10'5" • High strength body constructed of thick wear-resistant steel having 400 Brinell hardness KOMTRAX equipped machines can send location, SMR and operation maps to a secure website utilizing wireless technology. Machines also relay error codes, cautions, maintenance items, fuel levels, and much more.

Engine

Model		Komatsu SAA6D140E-6*
Type		Water-cooled, 4-cycle
Aspiration		Komatsu variable geometry, turbo-charged, after-cooled, cooled EGR
Number of cylinders		6
Bore	5.51"	140 mm
Stroke	6.5"	165 mm
Piston displacement	928 in³	15.24 ltr
Horsepower :
SAE J1995	473 HP	353 kW
ISO 9249 / SAE J1349	469 HP	350 kW
Rated rpm		2000 rpm
Fan drive type		Hydraulic
Maximum torque	1669 ft lbs	2263 N•m 231 kg•m
Fuel system		Direct injection
Governor		Electronically controlled
Lubrication system:
Method		Gear pump, force-lubrication
Filter		Full-flow type
Air cleaner		Dry type with double elements and precleaner (cyclonpack type), plus dust indicator
*EPA Tier 4 Interim and EU stage 3B emissions certified

Transmission

Torque converter		3-elements, 1-stage, 2-phase
Transmission		Full-automatic, counter-shaft type
Speed range		6 speeds forward and 2 reverse
Lockup clutch		Wet, single-disc clutch
Forward		Torque converter drive in 1st gear, direct drive in 1st lockup and all higher gears
Reverse		Torque converter drive and direct drive in all gear
Shift control		Electronic shift control with automatic clutch modulation in all gear
Maximum travel speed	34.7 mph	55.9 km/h

Axles

Final drive type		Planetary gear
Ratios:
Differential		3.727
Planetary		4.941

Suspension System

Front		Hydro-pneumatic suspension
Rear		Combined hydro-pneumatic and rubber suspension system

Steering System

Type		Articulated type, fully hydraulic power steering with two double-acting cylinders
Supplementary steering		Automatically actuated, electrically powered
Standard		ISO5010, SAE J1511
Minimum turning radius, wall to wall	28' 10"	8.8 m
Articulation angle		45° each direction

Cab

Standard

ISO3449 (FOPS) ISO3471 (ROPS)

Brakes

Service brakes		Full-hydraulic control, oil-cooled multiple-disc type on front and center axles
Standard		ISO3450
Parking brake		Spring applied, caliper disc type
Retarder		Front and center axle brakes act as retarder

Main Frame

Type

Articulated type, box-sectioned construction on front and rear Connected by strong torque tubes.

Body

Capacity:
Struck16.9	23.8 yd³	18.2 m³
Heaped (2:1, SAE)	31.4 yd³	24 m³
Payload	44.1 U.S. tons	40 metric tons
Material - high tensile strength steel	184,925 psi	130 kg/mm²
Material thickness:
Bottom	0.55"	14 mm
Front	0.31"	8 mm
Sides	0.47"	12 mm
Target area - (inside length x width)	18' 7" x 10' 6"	5667 mm x 3194 mm
Heating		Exhaust heating (optional)

Hydraulic System

Hoist cylinder		Twin, telescopic type
Relief pressure	4264 psi	275 kg/cm² / 27 Mpa
Hoist time		12.0 sec

Weight (approximate)

Empty weight	74,207 lbs	33,660 kg
Gross vehicle weight	162,569 lbs	73,740 kg
Weight distribution:
Empty:
Front axle		56.4%
Center axle		22.5%
Rear axles		21.1%
Loaded:
Front axle		29.4%
Center axle		35.4%
Rear axles		35.2%

Tires

Standard tire

29.5 R25

Service Refill Capacities

Fuel tank	136.8 U.S. gal	518 L
Engine oil	9.3 U.S. gal	35 L
Torque converter, transmission and retarder cooling	33 U.S. gal	125 L
Differentials (total)	28.5 U.S. gal	108 L
Final drives (total)	8.5 U.S. gal	32 L
Hydraulic system	44.1 U.S. gal	167 L
Suspension (total)	5.7 U.S. gal	21.4 L