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W
W
ORKING
ORKING
E
E
NVIRONMENT
NVIRONMENT
Operator Comfort
Operator comfort is essential for safe and productive work.
The D275A-5 provides a quiet, comfortable environment
where the operator can concentrate on the work at hand.
Hexagonal Pressurized Cab (optional)
● The cab's new hexagonal design and large tinted glass
windows provide excellent front, side, and rear visibility.
● Air filters and a higher internal air pressure combine
to prevent dust from entering the cab.
Photo may include optional equipment
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Comfortable Ride with New Cab Damper Mounting
and K-Bogie Undercarriage
D275A-5's cab mount uses a newly designed cab damper
which provides excellent shock and vibration absorption
capacity with its long stroke. Cab damper mounts
combined with new K-bogie undercarriage, softens shocks
and vibration while traveling over adverse conditions, that
are impossible to absorb with conventional cab mounting
methods. The soft spring of cab damper isolates the cab
from machine body, suppressing vibration and providing a
quiet, comfortable operating environment.
Boot
Rubber
Cab Damper Mounting
Silicon oil
Spring
New suspension seat
D275A-5 uses a newly designed suspension seat. Fore and
aft sliding rails
and suspension spring
have been newly
designed to increase
strength and rigidity,
reducing movement of
seat components. The
new seat provides
excellent support,
improving riding
comfort. Fore and aft
seat travel has been
designed for all
operator sizes.
E
E
ASY
ASY
M
M
AINTENANCE
AINTENANCE
Preventative Maintenance
Preventative maintenance is the only way to ensure long service life from your equipment. That's why Komatsu designed the
D275A-5 with conveniently located maintenance points to make necessary inspections and maintenance quick and easy.
Centralized Service Station
To assure convenient maintenance, the power train oil filter,
power train oil level gauges and hydraulic tank are arranged
on the right side of the machine.
All warning and monitor lights are lit for photo shooting.
Monitor With Self-Diagnostic Function
With the starting switch turned ON, the monitor displays P
on the display, check-before-starting and caution items
appear on the right lower part of the panel. The monitor
finds abnormalities, corresponding warning light blinks and
a warning buzzer sounds. The monitor displays engine rpm
and forward/reverse gear speed on the upper part of the
monitor during operation. When abnormalities occur during
operation, user code and service meter are displayed
alternately. When a high importance user code is displayed,
the caution light blinks and a warning buzzer sounds to
prevent the development of serious problems.
Enclosed Hydraulic Piping
Hydraulic piping for the blade tilt cylinder is completely
housed in the push arm, ensuring damage protection from
materials.
Low Maintenance Costs
New Track Link Design
New D275A-5 track links feature increased link tread and link height and track
guiding guard shape is improved. The result is improved undercarriage life
and reduced cost through maintenance man-hours when turning pins and
bushings.
D275A-5
CRAWLER DOZER
Modular Power Train Design
Power train components are sealed in a modular design that
allows the components to be dismounted and mounted
without oil spillage.
Oil Pressure Checking
Ports
Pressure checking ports for
power train components are
centralized to promote quick
and simple diagnosis.
Maintenance Free Disc Brakes
Wet disc brakes require less maintenance.
Enlarged Engine Room
Engine room space is enlarged by increasing engine hood
height, facilitating maintenance of the engine and related
equipment.
Gull-wing Engine Side Covers (optional)
The opening area is further enlarged when gull-wing engine
side covers are opened, facilitating engine maintenance and
filter replacement. Side covers have been changed to a thick
one-piece structure with a bolt-on catch to improve durability.
Wide link tread
Track
guiding
guard
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