komatsu D275A-5 SPECIFICATIONS

ROPS canopy:*

Weight . . . . . . . . . . . . . . . . 650 kg 1,430 lb

Roof dimensions

Length . . . . . . . . . . . . . . . 1405 mm 4'7"

Width . . . . . . . . . . . . . . . . 2035 mm 6'8"

Height from

compartment floor . . . . . . . 1830 mm 6'0"

*Meets ISO 3471 and SAE J1040 APR88, ROPS

standards, as well as ISO 3449 FOPS standard

Additional ground

pressure . . 2.0 kPa 0.02 kg/cm20.28 psi

Steel Cab:

Weight. . . . . . . . . . . . . . . . . . 415 kg 910 lb

Dimensions:

Length. . . . . . . . . . . . . . . 1790 mm 5'10"

Width . . . . . . . . . . . . . . . . 1455 mm 4'9"

Height from compartment

floor to ceiling . . . . . . . . . . 1530 mm 5'0"

Additional ground

pressure . . 1.0 kPa 0.01 kg/cm20.14 psi

Variable giant ripper:

Var iable, parallelogram single-shank ripper
ideal for ripping up tough material. Ripping
angle is variable. Ripping depth is adjustable
in three stages by a hydraulically controlled
pin puller.

Weight (including hydraulic

control unit) . . . . . . . . . 3600 kg 7,940 lb

Beam length . . . . . . . . . . . . . 1252 mm 4'1"

Maximum lift above ground . 1195 mm 3'11"

Maximum digging depth . . . . 1420 mm 4'8"

Additional ground

pressure . . 7.8 kPa 0.88 kg/cm21.14 psi

Multi-shank ripper:

Hydraulically controlled parallelogram ripper
with three shanks. Ripping angle available
stepless adjustable.

Weight (including hydraulic

control unit) . . . . . . . . . 4462 kg 9,840 lb

Beam length . . . . . . . . . . . . . 2495 mm 8'2"

Maximum lift above ground . . . 955 mm 3'2"

Maximum digging depth . . . . 900 mm 2'11"

Additional ground

pressure . . 9.8 kPa 0.10 kg/cm21.42 psi

CEN00024-01 Printed in Japan 200807 IP.AD (10)

www.Komatsu.com Materials and specifications are subject to change without notice

is a trademark of Komatsu Ltd. Japan

● Alternator 75 ampere/24V

● Backup alarm

● Batteries 170 Ah/2 x 12V

● Blower fan

● Decelerator pedal

● Dry-type air cleaner with dust evacuator

and dust indicator

● Final drive case wear guard

● Hinged front mask

● Hinged underguard with front pull hook

● Hydraulic track adjusters

● Lighting system (including four front

and two rear lights)

● Torque converter

● Muffler with rain cap

● Palm lever steering control

● Radiator reserve tank

● ROPS brackets

● Segmented sprockets

● Shoes, 610 mm 24" extreme service,

single-grouser

● Seven-roller track frames

● Starting motor 11 kW/24 V

● Suspension seat, synthetic leather

● TORQFLOW transmission

● Tr ack roller guards

● War ning horn

● Wet steering clutches/brakes

● Air conditioner with heater and defroster

● Alternator 90 ampere/24 V

● Batteries 200 Ah/2 x 12V

● Car stereo

● Counterweight

● Dual tilt dozer

● Fire extinguisher

● Hitch

● Hydraulics for ripper

● Light for ripper point

● Mirror, rearview

● Panel cover

● Perforated side covers

● Perforated single radiator mask

● Pusher plate

● Seat belt

● Shoes:

—710 mm 28"

—760 mm 30"

● Spill guard for semi-U dozer

● Spill guard for U-dozer

● Sun visor

● Suspension seat

—Fabric seat
—Fabric seat, high backrest

● Strengthened Semi-U blade

● Strengthened U blade

● Tr ack shoe slip control system

● Vandalism protection kit

STANDARD EQUIPMENT

OPTIONAL EQUIPMENT

NET HORSEPOWER

306 kW 410 HP

OPERATING WEIGHT

49850 kg 109,900 lb

Photo may include optional equipment

D275A-5

C

RAWLER

D

OZER

D

275A

W

ALK

-A

ROUND

W

ALK

-A

ROUND

2

D275A-5 Crawler Dozer

Simple Hull Frame

and monocoque track frame
with pivot shaft for greater
reliability.

Large Blade Capacities:

13.7 m317.9 yd3(Semi-U dozer) and

16.6 m321.7 yd3(U dozer)

Komatsu-integrated design for the best value, reliability, and versatility. Hydraulics, power train, frame, and

all other major components are engineered by Komatsu. You get a machine whose components are designed to
work together for higher production, greater reliability, and more versatility.

Extra-low Machine Profile provides excellent

machine balance and low center of gravity.

Preventative Maintenance

● Centralized Service Station

● Enclosed Hydraulic Piping

● Modular Power Train Design

● Oil Pressure Checking Ports

See page 9.

306 kW 410 HP turbocharged, aftercooled

engine provides ample power.

See page 6.

New Track Link Design

Track link height and link tread width are
increased, providing extended wear life.

See page 9.

3

K-Bogie Undercarriage
System improves traction,

component durability, and
operator comfort.

See page 6.

NET HORSEPOWER

306 kW 410 HP @ 2000 rpm

OPERATING WEIGHT

49850 kg 109,900 lb

BLADE CAPACITY

Semi-U: 13.7 m317.9 yd

3

Full-U: 16.6 m321.7 yd

3

D275A-5

CRAWLER DOZER

New Hexagonal Designed Cab includes:

● Spacious interior

● Comfortable ride with new cab damper and K-bogie undercarriage

● Excellent visibility

● High capacity air conditioning system (optional)

● PCCS (Palm Command Control System) lever

● Pressurized cab (optional)

● Adjustable armrest

● Travel control console integrated with operator seat

Low-drive, long-track,
seven roller undercarriage

ensures outstanding gradeability
and stability.

Photo may include optional equipment

Hydrostatic Driven Engine Cooling Fan

controlled automatically, reduces fuel consumption and
operating noise levels.

See page 6

ECMV (Electronic Controlled
Modulation Valve) controlled

steering clutches/brakes facilitating
steering operation.

See page 5.

Rippers (option) :

● Variable giant

● Multi-shank

Unique Komatsu exclusive
linkage provides excellent
productivity.

See page 7.