Preventative Maintenance - Komatsu D155A-6 Brochure

D155A
C D
-6 R A W L E R
M
AINTENANCE

Preventative maintenance

Preventative maintenance is the only way to ensure long service life from your equipment. That's why Komatsu designed the
D155A-6 with conveniently located maintenance points to make necessary inspections and maintenance quick and easy.
Multi-monitor with troubleshooting function to
keep operator informed
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.
Replacement times for oil and filters are also indicated.
Low maintenance costs
Reliable simple hull frame
Simple hull structure main frame design increases durability
and reduces stress concentration at critical areas. The
monocoque 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 help prevent oil leakage.
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O Z E R
F
EATURES
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.
Electric priming pump
Simply pressing the button enables bleeding air from the
fuel circuit at the time of filter replacement, etc.
Enclosed hydraulic piping
Hydraulic piping for the blade tilt cylinder is completely
housed in the push arm, helping protect it from damage.
Modular power train design
Power train components
Engine
are sealed in a modular
design, making servicing
work clean, smooth and
easy.
Pivot shaft
Disc brakes
Wet disc brakes require
less maintenance.
Measures against poor quality fuel
In order to help protect the engine against dust and water
contained in the fuel, the machine is equipped with an
additional main fuel filter and a large water separator. In
addition, fuel tank drain valve, water drain valve of the water
separator and fuel drain valve are concentrated at one place.
Large water separator
Hull frame
Final drive
Track frame
CRAWLER DOZER
Dust-proof measures
Large fresh air pre-cleaner is also provided as optional
equipment. The hydraulic tank and the fuel tank are
equipped with a high-filtration breather with pressure valve
to help prevent dust from entering.
Large fresh air pre-cleaner
Additional main fuel filter
D155A
-6
WA380
-6
High-filtration breather
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