HM400-3

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Engine   
Model    Komatsu SAA6D140E-6* 
Type    Water-cooled, 4-cycle 
Aspiration    Komatsu variable geometry, turbo-charged, after-cooled, cooled EGR 
Number of cylinders   
Bore  5.51"  140 mm 
Stroke  6.5"  165 mm 
Piston displacement  928 in  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 Nm
231 kgm 
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   
Full time all wheel drive 
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 yd  18.2 m 
Heaped (2:1, SAE)  31.4 yd  24 m 
Payload  44.1 U.S. tons  40 metric tons 
Material - high tensile strength steel  184,925 psi  130 kg/mm 
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/cm / 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 

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