HM300-3

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Engine   
Model    Komatsu SAA6D125E-6* 
Type    Water-cooled, 4-cycle 
Aspiration    Komatsu variable geometry, turbo-charged, after-cooled, cooled EGR 
Number of cylinders   
Bore  4.92"  125 mm 
Stroke  5.91"  150 mm 
Piston displacement  674 in  11.04 ltr 
Horsepower :     
SAE J1995  332 HP  248 kW 
ISO 9249 / SAE J1349  324 HP  242 kW 
Rated rpm    2000 rpm 
Fan drive type    Hydraulic 
Maximum torque  1239 ft lbs  1680 Nm
71 kgm 
Fuel system    Direct injection 
Governor    Electronically controlled 
Lubrication system:     
Method    Gear pump, force-lubrication 
Filter    Full-flow type 
*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  36.4 mph  58.6 km/h 
Axles   
Full time all wheel drive 
Final drive type    Planetary gear 
Ratios:     
Differential    3.154 
Planetary    4.667 
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 
Minimum turning radius, wall to wall  26'7"  8.10 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  17.5 yd  13.4 m 
Heaped (2:1, SAE)  22.4 yd  17.1 m 
Payload  30.9 U.S. tons  28.0 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)  17'3" x 8'10"  5250 mm x 2685 mm 
Heating    Exhaust heating (optional) 
Hydraulic System   
Hoist cylinder    Twin, telescopic type 
Relief pressure  4264 psi  300 kg/cm / 29.4 Mpa 
Hoist time    10.5 sec 
Weight (approximate)   
Empty weight  54,917 lbs  24,910 kg 
Gross vehicle weight  116,823 lbs  52,990 kg 
Weight distribution:     
Empty:     
Front axle    57.0% 
Center axle    23.0% 
Rear axles    20.0% 
Loaded:     
Front axle    29.0% 
Center axle    36.5% 
Rear axles    34.5% 
Tires   
Standard tire    23.5 R25 
Service Refill Capacities   
Fuel tank  102.6 U.S. gal  388.3 L 
Engine oil  9.2 U.S. gal  35 L 
Torque converter, transmission and retarder cooling  25.9 U.S. gal  98 L 
Differentials (total)  18.9 U.S. gal  71.5 L 
Final drives (total)  6.1 U.S. gal  23 L 
Hydraulic system  27.2 U.S. gal  103 L 
Suspension (total)  2.7 U.S. gal  10.4 L 

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