Multi-monitor with troubleshooting function to
prevent critical machine troubles
Various meters, gauges, and warning functions are centrally
arranged on the multi-monitor. Offers ease of start-up
inspection and promptly warns the operator with a lamp
and buzzer if any abnormalities should occur. In addition,
countermeasures are indicated in 4 stage codes to ensure
safety and prevent the machine from major problems.
Replacement times for oil and filters are also indicated.
Easy radiator cleaning with hydraulic drive fan
The radiator can be cleaned by utilization of the reversible,
hydraulically driven cooling fan. The fan can be reversed
from inside the cab by simply turning the switch to reverse.
Oil pressure checking ports
Pressure checking ports for power train components are
centralized to promote quick and simple diagnosis.
Gull-wing engine side covers
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.
9
8
M
AINTENANCE
F
EATURES
D155AX
-6
CRAWLER DOZER
D155AX
-6
C
R A W L E R
D
O Z E R
Preventative maintenance
Preventative maintenance is the only way to ensure long service life from your equipment. That’s why Komatsu designed the
D155AX-6 with conveniently located maintenance points to make necessary inspections and maintenance quick and easy.
Increased undercarriage component life
K-Bogie track rollers having
a large oscillation travel
always follow the track link
even on uneven ground.
This feature keeps the
correct alignment between
the rollers and links to
contribute long
undercarriage component life.
Reliable simple hull frame
Simple hull structure main frame design increases durability
and reduces stress concentration at critical areas. The track
frame has a large cross section and utilizes pivot shaft
mounting for greater reliability.
Sealed DT connectors
Main harnesses and controller connectors are equipped with
sealed DT connectors providing high reliability, as well as
water and dust resistance.
Flat face O-ring seals
Flat face O-ring seals are used to securely seal all hydraulic
hose connections and to prevent oil leakage.
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 removed
and installed without oil
spillage, making servicing
work clean, smooth and
easy.
Maintenance free disc brakes
Wet disc brakes require less maintenance.
New integrated ROPS cab
A newly designed cab is integrated with ROPS according to
the latest computer analysis. High rigidity and superb sealing
performance sharply reduce noise and vibration for the
operator and prevents dust from entering the cab. Relaxed
operation in comfortable environment. In addition, side
visibility is increased because external ROPS structure and
posts are not required. Outstanding visibility has been
achieved.
Spring
Silicon oil
Rubber
Boot
W
ORKING
E
NVIRONMENT
Pivot shaft
Final drive
Hull frame
Track frame
Engine
Low maintenance costs
Ripper visibility
Ripper cylinders were reduced
from four to two, greatly
improving rear visibility during
ripping.
Also, expanded ripper
movement offers a wider range
of operation.
Comfortable ride with cab damper mounting
The D155AX-6’s cab mount uses a cab damper which
provides excellent shock and vibration absorption capacity
with its long stroke. Cab damper mounts soften shocks and
vibration while traveling over adverse conditions, which
conventional mounting systems are unable to absorb. The
cab damper spring isolates the cab from the machine body,
suppressing vibration and providing a quiet, comfortable
operating environment.
Air conditioner
switches
Basic operation
switches
Function
switches
Indicators
Large multi-lingual LCD color monitor
A large user-friendly color monitor enables safe, accurate
and smooth work. Improved screen visibility is achieved by
use of TFT liquid crystal display that can easily be read at
various angles and lighting conditions. Simple and easy to
operate switches. Industry first function keys facilitate multi-
function operations.
Display data in 10 languages to globally support operators
around the world.
D155AX-6
D155AX-5
G.L
Ripper point
penetration
area
