Productivity Features • High performance Komatsu SSDA16V160 engine Gross horsepower 2014 kW / 2,700 HP • Komatsu IGBT AC electric drive system • 3469 kW / 4,650 HP continuous retarding capability • Automatic retard speed control • Traction (spin-slide) control • Application specific body designed to hold rated payload • Tight turning radius 15.5 m / 51' • Payload Meter III^® (standard) • Hill Start Environmentally Friendly • Komatsu SSDA16V160 engine is certified to US EPA Tier 2 emissions regulations • Lead-free radiator design • Fuel efficient engine with 2-stage turbocharging • Electronically controlled drive system blower to increase efficiency of power use • Factory installed trolley (optional) • Less fluids compared to mechanical drive trucks Reliability Features • Frame structurally enhanced for 254 ton / 280 short ton payload • Komatsu designed wheelmotor • Simple and reliable hydraulic system • Fully-hydraulic controlled multiple-disc wet brakes • Steering and brake accumulators Operator Environment • Ergonomically designed spacious cab with excellent visibility • Fully adjustable driving position settings • Komatsu Hydrair II suspensions designed for optimum ride • Four post ROPS/FOPS Level 2 • Automotive style dash panel with user friendly operator interface display • Isolated cab mounts Easy Maintenance • KOMTRAX Plus allows remote diagnostics of key engine and drive system components • Fully hydraulic braking system reduces wear and improves replacement intervals • Extended oil change intervals with Centinel^® and Oil Reserve System • Automatic lubrication system • Flange-type tire rims • Eliminator^® oil filtration system

Engine

Make and model		Komatsu SSDA16V160 Tier 2
Fuel		Diesel
Number of cylinders		16
Operating cycle		4 cycle
Gross horsepower* @ 1900 rpm	2,700 HP	2014 kW
Net flywheel power** @ 1900 rpm	2,550 HP	1902 kW
Weight (wet)	21,182 lb	9608 kg
* Gross horsepower is the output of the engine as installed in this machine, at governed rpm and with engine manufacturer’s approved fuel setting. Accessory losses included are water pump, fuel pump and oil pump.
**Net flywheel power is the rated power at the engine flywheel minus the average accessory losses. Accessories include fan and charging alternator. Rating(s) represent net engine performance in accordance with SAE J1349 conditions.

Electric Drive

AC/DC CURRENT
Drive System*		Komatsu AC Drive
Alternator		DRLDZ5010-AL
Dual Fan Main Blower	14,800 cfm	419 m³/min
Control		IGBT AC Torque Control System
Ratio		35.52:1
Speed (maximum)	40 mph	64.5 km/h
* Wheel motor drive system application depends upon gross vehicle weight, haul road grade, haul road length, rolling resistance and other parameters. Komatsu must analyze each job condition to assure proper application.

Tires and Rims

Rock service, tubeless, radial tires:
Standard tire*		50/80 R57
Optional tire*		50/90 R57
Flange mount rim	34'' x 57'' x 6'' rim assembly	864 mm x 1448 mm x 152 mm rim assembly
Typical total tire weight	50,780 lb	23033 kg
* Tires should meet application requirements for tkph/tmph, tread, compound, inflation pressure, ply rating or equivalent, etc.

Body

Floor sheet 200,000 psi / 1379 mPa tensile strength steel / Outer	0.63''	16 mm
Floor sheet 200,000 psi / 1379 mPa tensile strength steel / Center	0.75''	19 mm
Front sheet 200,000 psi / 1379 mPa tensile strength steel / Outer	0.39'	10 mm
Front sheet 200,000 psi / 1379 mPa tensile strength steel / Center	0.39'	10 mm
Side sheet 200,000 psi / 1379 mPa tensile strength steel	0.31''	8 mm
Canopy sheet 100,000 psi / 690 mPa tensile strength steel	0.24''	6 mm
Capacity struck	160 yd³	122 m³
SAE heaped 2:1	221 yd³	169 m³
Standard Komatsu body weight	74,171 lb	33643 kg

Cab

Plate material tensile strength steel	70,000 psi	482.6 mPa
Casting material tensile strength steel	90,000 psi	620.5 mPa
Rail width	12''	305 mm
Rail depth (minimum)	34''	864 mm
Top and bottom plate thickness	1.57''	40 mm
Side plate thickness / Rear	0.75''	19 mm
Side plate thickness / Front	0.87''	22 mm
Drive axle mounting		Pin and spherical bushing
Drive axle alignment		Swing link between frame and axle

Frame

Plate material tensile strength steel	70,000 psi	482.6 mPa
Casting material tensile strength steel	90,000 psi	620.5 mPa
Rail width	12''	305 mm
Rail depth (minimum)	34''	864 mm
Top and bottom plate thickness	1.57''	40 mm
Side plate thickness / Rear	0.75''	19 mm
Side plate thickness / Front	0.87''	22 mm
Drive axle mounting		Pin and spherical bushing
Drive axle alignment		Swing link between frame and axle

Braking System

Max. service apply pressure	2,400 psi	16547 kPa
Total friction area per brake	11,693 in²	75439 cm²
Secondary brakes		Automatically applied prior to hydraulic system pressure dropping below level required to meet secondary stopping requirements.
Wheel brake locks		Switch activated
Parking brakes		Multiple disc, spring-applied, hydraulically-released, dry brakes on inboard end of each wheel motor rotor shaft. Rated to hold on ±15% grade at maximum gross vehicle weight.
Electric dynamic retarder	4,650 hp	3469 kW
Continuously rated high-density blown grids w/retard capacity at low speeds and retard in reverse propulsion.

Suspension

Max. front stroke	12.32''	313 mm
Max. rear stroke	11.50''	292 mm
Max. rear axle oscillation		±10.4°

Cooling System

Radiator frontal area

62.5 ft²

5.81 m²

Service Capacities

Cooling System	125 U.S. gal	473 L
Crankcase	74 U.S. gal	280 L
Hydraulic system	350 U.S. gal	1325 L
Motor gear box (each)	32 U.S. gal	121 L
Inverter cooling system	6.5 U.S. gal	25 L
Fuel	1,200 U.S. gal	4542 L
Reserve Oil® System	30 U.S. gal	114 L

Hydraulic System

Steering		Accumulator assisted with twin double acting cylinders provide constant rate steering. Secondary steering automatically supplied by accumulator.
Turning circle diameter (SAE)	102'	31 m
Reservoir	250 U.S. gal	947 L
Filtration		In-line replaceable elements
Suction		Single, full flow, 100 mesh
Hoist and steering		Dual, in-line, high pressure
Brake component cabinet		Above deck, easily accessible with diagnostic test connections
Hoist		Two 3-stage dual-acting outboard cylinders, internal cushion valve, over-center dampening
Hoist times:
Power-up loaded		22 sec
Power-down (high idle)		13 sec
Float-down (low idle)		23 sec
Pumps		Two pumps, single package, end of alternator
Hoist and brake cooling		Tandem gear pump with output of 931 lpm / 246 gpm at 1900 rpm and 17237 kPa / 2,500 psi
Steering and brake		Pressure-compensating piston pump with output of 246 lpm / 65 gpm at 1900 rpm and 18960 kPa / 2,750 psi
System relief pressures:
Hoist and brake cooling	2,500 psi	17237 kPa
Steering and brake	3,000 psi	20685 kPa
Quick disconnects standard for powering disabled truck and for systems diagnostics.

Electric System

Alternator		24 volt, 140 amp
Lighting		24 volt
Cranking motors		Two/24 volt