HD405-7

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Engine   
EPA Tier 3 and EU Stage 3A emission certified. 
Model    KOMATSU SAA6D140E-5 
Type    Water-cooled, 4-cycle 
Aspiration    Turbo-charged and air-to-air after-cooled 
Number of cylinders   
Bore x stroke  5.5" x 6.5"  140 mm x 165 mm 
Piston displacement  930 in3  15.24 ltr. 
Horsepower:     
SAE J1995  518 HP  386 kW 
ISO 9249 /SAE J1349  498 HP  371 kW 
Rated rpm    2,000 rpm 
Fan drive type.    Mechanical 
Maximum torque.  1600 Ibft  221 kgm 
Fuel system    Direct injection 
Governor    Electronically controlled 
Lubrication system:     
Method    Gear pump, force-Iubric 
Filter    Full-flow type 
Air cleaner    Dry type with double elements and precleaner, plus dust indicator 
Transmission   
Torque converter    3-elements, 1-stage, 2-phase 
Transmission    Full-automatic, planetary type 
Speed range    7 speeds forward and 1 reverse 
Lockup clutch    Wet, single-disc clutch 
Forward    Torque converter drive in 1st gear, direct drive in 1st lockup and all higher gear 
Reverse    Torque converter drive 
Shift control    Electronic shift control with automatic clutch modulation in all gear 
Maximum travel speed  43.5 mph  70.0 km/h 
Axles   
Rear Axle    Full-floating 
Final drive type    Planetary gear 
Ratios:     
Differential    3.125 
Planetary    4.737 
Suspension System   
Independent, hydropneumatic suspension cylinder with fixed throttle to dampen vibration.     
Effective cylinder stroke (front suspension)  9.8"  250 mm 
Rear axle oscillation:     
Oil stopper    6.8 
Mechanical stopper    8.1 
Steering System   
Type    Fully hydraulic power steering with two double-acting cylinders 
Supplementary steering    Manually controlled (meets ISO 5010, SAE J1511 and SAE J53) 
Minimum turning radius  23'7"  7.2 m 
Maximum steering angle (outside tire)    43 
Cab   
Dimensions comply with ISO 3471 and SAE J1040-1988c ROPS (Roll-Over Protective Structure) standards. 
Main Frame   
Type    Box-sectioned structure 
Brakes   
Brakes meet ISO J3450 and SAE J1473 standards.     
Service brakes:     
Front    Full-hydraulic control, caliper disc type 
Rear    Full-hydraulic control, oil-cooled multiple-disc type 
Parking brake    Spring applied, multiple-disc type 
Retarder    Oil-cooled, multiple-disc rear brakes act as retarder. 
Secondary brake    Manual pedal operation When hydraulic pressure drops below the rated level, parking brake is automatically actuated 
Brake surface:     
Front  150 in  968 cm 
Rear  7,881 in  50847 cm 
Body   
Capacity:     
Struck  26.2 yd  20 m 
Heaped (2:1, SAE)  35.7 yd  27.3 m 
Payload  45.2 U.S. tons  41.0 metric tons 
Material (high tensile strength steel)  227,520 psi  160 kg/mm 
Structure    V-shape body 
Material thickness:     
Bottom  0.98"  25 mm 
Front  0.63"  16 mm 
Sides  0.55"  14 mm 
Target area: (inside length x width)  18'4" x 11'1"  5590 mm x 3380 mm 
Dumping angle    48 
Height at full dump  26'0"  7925 mm 
Heating    Exhaust heating 
Hydraulic System   
Hoist cylinder    Twin, 2-stage telescopic type 
Relief pressure  2,990 psi  210 kg/cm
20.6 MPa 
Hoist time    10 sec 
Weight (approximate)   
Empty weight  75,840 lb  34400 kg 
Gross vehicle weight with 41 metric ton 45.2 U.S. ton payload  164,200 lb  74480 kg 
Max. gross vehicle weight Standard tire  165,520 lb  75080 kg 
Not to exceed max. gross vehicle weight, including options, fuel     
Weight distribution:     
Empty:     
Front axle    50.7% 
Rear axles    49.3% 
Loaded:     
Front axle    32.8% 
Rear axles    67.2% 
Tires   
Standard tire    18.00 R33 
Service Refill Capacities   
Fuel tank  127.9 U.S. Gal  484 ltr. 
Engine oil  13.2 U.S. Gal  50 ltr. 
Torque converter, transmission and retarder cooling  23.8 U.S. Gal  90 ltr. 
Differentials (total)  11.9 U.S. Gal  45 ltr. 
Final drives (total)  7.9 U.S. G  30 ltr. 
Hydraulic system  34.1 U.S. Gal  129 ltr. 
Suspension (total)  11.7 U.S. Gal  44.2 ltr. 

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