P
RODUCTIVITY
F
EATURES
D39-22
CRAWLER DOZER
D39-22
C
R A W L E R
D
O Z E R
M
AINTENANCE
F
EATURES
8
9
This engine is EPA Tier 3, EU
Stage 3A and Japan emissions
certified; "ecot3" - ecology and
economy combine with Komatsu
technology to create a high performance engine without
sacrificing power or productivity.
Fuel efficient electronic controlled engine
The Komatsu SAA4D107E-1 engine delivers a net output of
79 kW
105 HP at 2200 rpm. The powerful Komatsu engine
incorporated into the D39-22 makes this dozer fuel efficient
and the logical choice in both grading and dozing operations.
The engine is turbocharged and features direct fuel injection
and air-to-air aftercooling to maximize power, fuel efficiency,
and emission compliance. To minimize noise and vibration,
the engine is iso-mounted to the main frame.
Hydraulically-driven cooling fan
The engine cooling fan rotation speed and direction is
electronically controlled. The fan rotation speed depends on
engine coolant and hydraulic oil temperatures; the higher
the temperature, the higher the fan speed. This system
increases fuel efficiency, reduces operating noise levels,
and requires less horsepower than a belt-driven fan.
Long track-on-ground
Long track-on-ground improves machine stability and
grading/dozing performance.
Pitch-Adjustable PAT dozer blade
Blade pitch angle can be easily adjusted by changing the
length of the pitch rod on the top of the blade. This enables
to provide maximum job efficiency in various material and
ground conditions.
Hydrostatic Transmission (HST) control system
The HST controller monitors engine output and work
equipment/travel load. It controls HST pump and motor
displacement to provide the optimum speed and drawbar
pull. Power to both tracks during turns and counter-rotation
makes the D39 extremely maneuverable.
Hydraulically-driven swing-up fan
The D39-22 utilizes a swing-up fan with a gas strut-assisted
lift locking system to provide easy access to the radiator, oil
cooler, and charge air cooler. The swing-up feature makes it
easier to access cooling cores. The hydraulic fan has a
“cleaning” mode. The fan rotates in the reverse direction
and helps to clear off objects in front of the cooling areas.
Remote grease points
Remote grease points facilitate lubrication of the C-frame
pivots and angle cylinder bearing.
Adjustment-free parking disc brake
An adjustment-free spring-applied hydraulic release wet
parking brake is located in each final drive.
New monitor with self-diagnostic function
The monitor system provides critical information about the
machine. It provides operating condition status and notifies
the operator with a lamp and buzzer when an abnormality
occurs. In addition, fault codes are indicated to aid
troubleshooting and help reduce machine downtime.
Service reminders for fluids and filters are also indicated.
Daily checks
All daily checks can be performed efficiently at ground level.
Photo may include optional equipment.
Photo may include optional equipment.
Photo may include optional equipment.
Photo may include optional equipment.
