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ORKING
ORKING
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NVIRONMENT
NVIRONMENT
Operator Comfort
Operator comfort is essential for safe and productive work. The D375A-5
provides the operator with a quiet, comfortable environment where he can
concentrate on the work at hand.
Hexagonal Pressurized Cab
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.
Comfortable Ride with New Cab Damper Mounting
and K-Bogie Undercarriage
D375A-5's cab mount uses a newly designed cab damper
mounting which further improves viscous damper and
provides excellent shock and vibration absorption capacity
with its long stroke. The cab damper mounting, combined
with new K-bogie undercarriage, softens shocks and
vibrations while traveling over ripped ground that are
impossible to absorb with conventional cab mounting
methods. The soft spring cab damper isolates the cab
from machine body, suppressing vibrations and providing
a quiet, comfortable operating environment.
New Suspension Seat
D375A-5 uses a newly designed suspension seat. Fore
and aft sliding rails and suspension spring are newly designed,
increasing strength and rigidity and reducing play of joints.
New seat provides excellent support and riding comfort. Fore and aft sliding amount is
designed to fit all operators.
Fresh Air Intake from Rear of Engine Hood
The air conditioner air intake port is now located at the rear of the engine hood where
there is minimal dust. As a result, the air inside the cab is always clean. Cleaning interval
of the filter is greatly extended, and use of a new structure filter element facilitates
cleaning and replacement.
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Photo may include optional equipment.
Photo may include optional equipment.
Cab Damper Mounting
Rubber Boot
Rubber
Silicon Oil
Spring
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ASY
ASY
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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
D375A-5 with conveniently located maintenance points to make necessary inspections and maintenance quick and easy.
Centralized Service Station
To ensure convenient maintenance, the transmission
and torque converter oil filters are both arranged next to
the power train oil level gauge.
Monitor with Self-Diagnostic Function
Starting switch turned ON, the monitor displays P on the
upper part of the display, service meter on the lower part of
the display and Check-before-starting and caution items
appear on the right part of the liquid crystal panel. The
monitor finds abnormalities, corresponding warning lamp
blinks and warning buzzer sounds. The monitor displays
engine rpm and forward/reverse gear speed on the upper
part of the display during operation. When error occurs
during operation, user code and service meter are displayed
alternately. When a high importance user code is displayed,
a caution lamp blinks and warning buzzer sounds to
prevent the
Mode for operator
Mode for operator
development
When normally operated
When normally operated
When error occurred
When error occurred
of serious
Engine tachometer
Engine tachometer
problems.
h
Displayed alternately
Displayed alternately
h
Service meter
Service meter
User code
User code
Low Maintenance Costs
Track Link with Wedge Ring
New D375A-5 track links feature reduced press-fit force and
a wedge ring. Conventional track pins are retained only with
a large press-fit force. The new track link divides pin forces
between the wedge ring and press-fit force. This results in
easier service with reduced pin damage when turning pins
and bushings. The result is improved undercarriage life and
reduced maintenance cost through reduced wear, greater pin
reusability, and reduced maintenance man-hours.
D375A-5
CRAWLER DOZER
Enclosed Hydraulic Piping
Hydraulic piping for the blade tilt cylinder is completely
housed in the push arm protecting it from damage.
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, making servicing work clean, smooth,
and easy.
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. Solid engine hood prevents dust
and rain from entering and keeps the engine clean.
Gull-wing Engine Side Covers
Gull-wing engine side covers facilitate engine maintenance
and replacement of each filter. Side covers are a thick
one-piece structure with bolt-on latch to improve durability and
repairability.
Pin press fitting
force +
wedge ring
holding force
Track
guiding
guard
Wedge ring
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