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* Net flywheel power is the rated power at the engine flywheel minus the average accessory losses. Accessories include fan and charging alternator.
Power ratings above represent engine performance in accordance with SAE J1995 and J1349 conditions. 
Make and model    Komatsu SSDA18V170 
Fuel    Diesel 
Number of cylinders    18 
Operating cycle    4 cycle 
Gross horsepower @ 1900 rpm  3,500 HP  2611 kW 
Net flywheel power* @ 1900 rpm  3,429 HP  2558 kW 
Weight (wet)  22,266 lb  10100 kg 
Electric Drive   
* 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.
** Optional ratios available. 
Alternator    GTA-39 
Dual impeller in-line blower  16,000 cfm  453 m/min 
Control    AC Torque Control System 
Motorized wheels*    GDY106 AC Induction Traction Motors 
Ratio**    32.62:1 
Speed (maximum)  40 mph  64.5 km/h 
Tires and Rims   
*Tires should meet application requirements for tkph/tmph, tread, compound, inflation pressure, ply rating or equivalent, etc. 
Rock service, tubeless, radial tires     
Standard tire*    53/80 R63 
Taper Lock    914 mm x 1600 mm x 127 mm (36'' x 63'' x 5.0'') rim assembly Rated at 758 kPa (110 psi) cold inflation pressure for rims, 600 kPa (87 psi) for tires. 
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
200,000 psi / 1379 mPa tensile strength steel (two-piece) 
0.63''  16 mm 
Front sheet
200,000 psi / 1379 mPa tensile strength steel 
0.35''  9 mm 
Side sheet
200,000 psi / 1379 mPa tensile strength steel 
0.31''  8 mm 
Canopy sheet
100,000 psi / 690 mPa 
0.19''  5 mm 
Standard SAE heaped 2:1  276 yd  211 m 
Standard Komatsu body weight  66,936 lb  30362 kg 
*Komatsu must approve all bodies through a Body Application Worksheet.     
Advanced Operator Environment with integral 4-post ROPS/FOPS structure (meets J1040 Apr88), adjustable air suspension seat w/lumbar support and arm rests, 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 heater and defroster, 21,600 Btu/hr air conditioning (HFC - 134A refrigerant). 
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
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  1.77''  45 mm 
Side plate thickness  0.98''  25 mm 
Drive axle mounting    Pin and spherical bushing 
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  2500 psi  17237 kPa 
Total friction area per brake  15,038 in  97025 cm 
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 @ maximum gross vehicle weight. 
Electric dynamic retarder  Max 5400 hp
4026 kW 
Continuous 3900 hp
2909 kW 
Continuously rated high-density blown grids w/retard at engine idle and retard in reverse propulsion.     
Variable rate hydro-pneumatic with integral rebound control 
Max. front stroke  12.92''  328 mm 
Max. rear stroke  9.40''  239 mm 
Max. rear axle oscillation    6.5 
*Rear suspensions are inverted.     
Cooling System   
L&M radiator assembly, split-flow, with deareation-type top tank measuring 3277 mm x 2164 (10'9'' x 7'1''). 
Service Capacities   
Cooling System  190 U.S. gal  719 L 
Crankcase*  90 U.S. gal  341 L 
Hydraulic system  350 U.S. gal  1325 L 
Motor gear box (each)  25 U.S. gal  95 L 
Fuel  1400 U.S. gal  5300 L 
*Includes lube oil filters     
Hydraulic System   
Steering    Accumulator assisted with twin double acting cylinders provide constant rate steering. Secondary steering automatically supplied by accumulator. 
Turning circle diameter (SAE)  97'7''  29.7 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    21 sec 
Power-down    23 sec 
Float-down empty    24 sec 
Pumps    Two pumps, single package, end of alternator 
Hoist and brake cooling    Tandem gear pump with output of 1022 lpm (270 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 18961 kPa (2,750 psi) 
System relief pressures:     
Hoist and brake cooling  2,500 psi  17237 kPa 
Steering and brake  4,000 psi  27579 kPa 
Quick disconnects standard for systems diagnostics and buddy dump.     
Electrical System   
4 x 8D and 2 x 30H, 220-ampere-hour batteries, bumper-mounted with disconnect switch. 
Alternator    24 volt, 140 amp 
Lighting    24 volt 
Cranking motor    two/24 volt 
Weight Distribution   
Empty Vehicle:  lb  kg 
Front axle (48.5%)  230,293  104459 
Rear axle (51.5%)  244,377  110847 
Total (wet, 100% fuel)  474,670  215307 
Loaded Vehicle at maximum GVW rating     
Front axle (32.8%)  365,871  165956 
Rear axle (67.2%)  748,799  339649 
Total  1,115,000  505755 
NOTE: GVW shall not exceed 505755 kg 1,115,000 lb including options, liners, fuel and payload, subject to application approval by Komatsu.     
NOTE: Komatsu trucks comply with SAE specifications for cab noise, ROPS, steering and braking. Cover photos and illustrations may show optional equipment. Materials and specifications subject to change without notice.     

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