7
Engine
The Komatsu SAA12V140E-3 engine delivers
664 kW
890 HP
at 2000 rpm. These features, together with the heavy
machine weight, make the D475ASD-5E0 a superior crawler
dozer in both ripping and dozing production. The engine is
EPA Tier 2 emission regulation certified, and features direct
fuel injection, turbocharger, and air-to-air aftercooler to
maximize fuel efficiency.
To minimize noise and vibration, the engine is mounted
to the main frame with rubber cushions.
Hydraulic drive radiator cooling fan
Fan rotation is automatically controlled depending on
coolant and hydraulic oil temperature, saving fuel
consumption and providing great productivity with a quiet
operating environment.
Automatic torque converter lockup system
For greater efficiency during long pushes, the lockup
mode allows the system to automatically engage the torque
converter lockup clutch. Locking up the torque converter
transmits all the engine power directly to the transmission,
increasing ground speed thus achieving efficiencies equal
to a direct drive. The result is efficient use of engine power,
less fuel consumption, and faster cycle times.
K-Bogie undercarriage system
New K-Bogie Undercarriage System combines prior
advantages with new additional features.
Current features:
●
K-Bogies that oscillate with two fulcrums assure large
amount of track roller vertical travel. Impact load to
undercarriage components is minimized and durability of
components is improved since track rollers are always in
contact with track link.
●
Track rollers follow track link movement to extend the
undercarriage life.
●
Excellent riding comfort is provided due to less vibration
and shock when traveling over rough terrain.
Features on new K-Bogie undercarriage system:
●
New K-Bogies with front and rear single bogies are utilized
providing increased length of track on ground to improve
machine stability.
●
The oscillating idler and increased sprocket lead angle
improve riding comfort when travelling over rough terrain.
6
Fulcrum of major bogie
Fulcrum of minor bogie
Torque
converter
Engine
Transmission
Lockup “ON”
Lockup “OFF”
P
RODUCTIVITY
F
EATURES
D475ASD
-5E0
SUPER DOZER
D475ASD
-5E0
S
U P E R
D
O Z E R
When it comes to crawler dozers, bigger really is better.
Bigger dozers are more efficient—they push more material per miner, per hour, and
per shift, for a lower overall cost per yard.
Presenting the most efficient of them all—the Komatsu D475ASD-5E0 Super dozer.
Super Dozer Blade
Thanks to an exclusive, proprietary
blade design, the Super dozer
answers a fundamental challenge
of dozer design—how to push more
load without a proportionate increase
in operating weight and horsepower.
The D475ASD’s massive
45.0 m
3
58.9 yd
3
. Super Dozer Blade gives you
15% more production than
conventional U-blade in level dozing.
DUMP
DIG
CARRY
81
68 -96
D475ASD-5E0
Super Dozer Blade
Conventional
34.4m
3
3
45.0yd
U-Blade
Unlike ordinary dozer blades, the Super Blade has a full range of movement.
Three basic positions—dig, carry and dump—create previously unheard-of
levels of efficiency. It also includes auto-dump and auto-reposition features.
Photo may include optional equipment.
