ENGINE
Make and model Komatsu SSDA18V170
Fuel Diesel
Number of cylinders 18
Operating cycle 4 cycle
Gross horsepower* 2610 kW 3,500 HP @ 1900 rpm
Net flywheel power** 2495 kW 3,346 HP @ 1900 rpm
Weight (wet) 10340 kg 22,795 lb
* 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
Alternator GTA-39
Dual impeller in-line blower 340 m3/min 12,000 cfm
Control AC Torque Control System
Motorized wheels* GDY108 Induction Traction Motors
Ratio 32.62:1 Max.
Speed (maximum) 64.5 km/h 40 mph
* Wheel motor application depends upon gross vehicle weight, haul road grade, haul road length, rolling resistance and other parameters. Komatsu and G.E. must analyze each job condition to assure proper application.
TIRES AND RIMS
Rock service, tubeless, radial tires
Standard tire* 56/80 R63
Flange mount rim
1041 mm x 1600 mm x 140 mm 41'' x 63'' x 5.5'' rim assembly.
Rims rated at 758 kPa 110 psi cold inflation pressure.
Typical tire weight 29553 kg 65,154 lb
* Tires should meet application requirements for tkph/tmph, tread, compound, inflation pressure, ply rating or equivalent, etc.
BODY
All-welded steel flat floor body with horizontal bolsters and full canopy. Eyebrow, rear wheel rock ejectors, body up sling and rubber mounts on frame are standard. Pivot exhaust heating optional.
Floor sheet 16 mm 0.63'' Outer
19 mm 0.75'' Center
1379 MPa 200,000 psi tensile strength steel
Front sheet 10 mm 0.39'' Outer
12 mm 0.47'' Center
1379 MPa 200,000 psi tensile strength steel
Side sheet 10 mm 0.39''
1379 MPa 200,000 psi tensile strength steel
Canopy sheet 6 mm 0.24''
690 MPa 100,000 psi tensile strength steel
Capacity struck 149m3 195 yd
SAE heaped 2:1 214m3 280 yd3
Standard Komatsu body weight 40823 kg 90,000 lb
CABIN
Advanced Operator Environment with integral 4-post ROPS/FOPS Level 2 structure, adjustable air suspension seat w/lumbar support and arm rests, full-size passenger seat, maximum R-value insulation, tilt and telescoping steering wheel, electric windshield wipers w/washer, tinted safety glass, power windows, Komatsu Payload Weighing System, 55,000 Btu/hr 11,891 ft-lbs/sec heater and defroster, 21,600 Btu/hr 4,670 ft-lbs/sec air conditioning (HFC - 134A refrigerant).
FRAME
Advanced technology, full butt-welded box sectional ladder-type frame with integral ROPS supports,integral front bumper, rear tubular cross members, steel castings at all critical stress transition zones, rugged continuous horsecollar.
Plate material 482.6 MPa 70,000 psi tensile strength steel
Casting material 620.5 MPa 90,000 psi tensile strength steel
Rail width 305mm 12''
Rail depth (minimum) 864 mm 34''
Top and bottom plate thickness 45 mm 1.77''
Side plate thickness 25 mm 0.98'' Rear
32 mm 1.26'' Front
Drive axle mounting Pin and spherical bushing
ELECTRIC Drive axle alignment Swing link between frame and axle
BRAKING SYSTEM
Service brakes: oil-cooled, hydraulic-actuated, multiple disc brakes at each wheel. Traction system wheel slip/slide control.
Max service apply pressure 18960 kPa 2750 psi
Total friction area per brake 103729 cm2 16,078 in2
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 Continuous 4476 kW 6000 hp
Continuously rated high-density blown grids w/retard capacity at low speeds and retard in reverse propulsion.
SUSPENSION
Variable rate hydro-pneumatic with integral rebound control
Max. front stroke 328 mm 12.92''
Max. rear stroke 239 mm 9.40''
Max. rear axle oscillation ±6.5°
COOLING SYSTEM
L&M radiator assembly, split-flow, with deaerator-type top tank.
Radiator frontal area 7.02 m2 75.5 ft2
SERVICE CAPACITIES
Cooling System 719 L 190 U.S. gal
Crankcase* 341 L 90 U.S. gal
Hydraulic system 1325 L 350 U.S. gal
Motor gear box (each) 95 L 25 U.S. gal
Fuel 5300 L 1400 U.S. gal
* Includes lube oil filters