Page 1
STANDARD EQUIPMENT FOR BASE MACHINE
OPTIONAL EQUIPMENT
Engine and related items
● Air cleaner, dry, double element type with
caution lamp on monitor
● Decelerator pedal
● Engine, KOMATSU SAA4D107E-1,
net output of 79 kW 105 HP direct
injection, turbocharged, air-to-air
aftercooler, EPA Tier 3 emissions certified
● Fan, hydraulic driven, electronic control
● Fuel pre-filter (10 micron) and fuel filter
(2 micron)
● Intake pipe with precleaner
● Radiator mask grid
● Radiator reserve tank
● Ribbon heater
● Water separator
Electric system
● Alternator, 35 amp (24 V)
● Back-up alarm
● Batteries, large capacity 92 Ah
● Starting motor, 5.5 kW
Power train and controls
● Brake pedal
● Counter rotation
● Electronically controlled Hydrostatic
Tr ansmission (HST) with Quick-shift and
variable speed settings
● Palm Command Control System (PCCS)
with electronic control for travel control
● Reverse speed presets
Undercarriage
● Idler cushions
● Sprockets, bolt-on
● Tr ack roller guards, end section
● Tr ack shoe assembly w/sealed and
lubricated link assembly:
—D39EX-22:
460 mm 18.1" single
grouser shoes
—D39PX-22: 635 mm 25.0" single
grouser shoes
Guards and covers
● Crankcase guard and underguard
● Engine hood and side panels
● ROPS/FOPS*
● Sprocket inner guard
Operator environment
● Cup holder
● Electronic monitor panel with on-board
diagnostics
● Foot rest, high mounted
● Horn
● Seat belt, 76 mm 3" retractable
● Seat, low back vinyl, suspension type
Dozer assembly
● Var iable pitch and power angle tilt dozer
assembly, inside arms (EX: 2710 mm
8'11" blade, PX: 3250 mm 10'8" blade)
Hydraulics and controls
● Accumulator for Proportional Pressure
Control (PPC)
● Hydraulics for PAT dozer
● Palm Command Control System (PCCS)
with Proportional Pressure Control (PPC)
for blade control
Vandalism protection
● Filler cap locks and cover locks
● Instrument panel lock and cover
(canopy only)
Other standard equipment
● Grease gun holder
● High altitude arrangement (no fuel
adjustment up to 2300 m 7,546 ft)
● Lighting package - (3 front, 1 rear
cab/canopy)
● Marks and plates, English
● Pullhook, front
Track shoe assembly with sealed and
lubricated link assembly
● D39PX-22
– 700 mm 27.6" single grouser, link
Track rail assembly with Abrasion
Resistant (AR) bushings and sealed and
lubricated link assembly
● D39EX-22
– 460 mm 18.1" single grouser,
shoe with AR link
– 510 mm 20" single grouser,
with AR link
● D39PX-22
– 635 mm 25.0" single grouser,
with AR link
– 700 mm 27.6" single grouser,
with AR link
Dozer assembly
● D39PX-22 – 2980 mm 9'9" blade
Track roller guards
● Tr ack roller guards, segmented, full
length
Operator environment
● 12 amp (12V) power port (cab only)
● Cab machine
– Cigarette lighter (24 V, standard for cab)
– Lunch box holder (standard for cab)
– Provision for radio (cab only)
– Seat, suspension type, fabric, high back
– Seat, suspension type, fabric low back
– Seat, air suspension type, fabric high
back
● Lunch box holder (option for canopy)
Rear equipment and hydraulics
● Rear, hydraulics (D39EX/PX-22)
● Ripper, multi-shank (D39EX-22 only)
● Hitch
ROPS canopy and ROPS cab equipment
● ROPS cab (includes air conditioner with
heater, defroster, pressurizer)
– Optional radio, AM/FM, cassette
● ROPS canopy with lower heater
Operator environment
● Forestry guards for cab and canopy
www.Komatsu.com Printed in Japan 200803 IP.AD (10)
CEN00321-00
Materials and specifications are subject to change without notice.
is a trademark of Komatsu Ltd. Japan.
NET HORSEPOWER
79 kW
105 HP @ 2200 rpm
OPERATING WEIGHT
D39EX-22: 9040 kg 19,930 lb
D39PX-22:
9480 kg 20,900 lb
D39E X-22
D39PX-22
C
RAWLER
D
OZER
Photo may include optional equipment.
D
39
*ROPS cab or ROPS canopy must be ordered for
all machines. Cab and canopy FOPS Level 2.
ROPS/FOPS meets all OSHA/MSHA standards
and regulations criteria.
Dozer assembly and rear-mounted equipment are
not included in base machine price.
Page 2
2 3
D275AX-5
CRAWLER DOZER
W
ALK
-A
ROUND
D39-22
CRAWLER DOZER
D39-22 C RAWLER D OZER
NET HORSEPOWER
79 kW 105 HP @ 2200 rpm
OPERATING WEIGHT
D39EX-22: 9040 kg 19,930 lb
D39PX-22: 9480 kg 20,900 lb
All-around visibility
● Super-slant nose design
● Cab-forward design
● Integrated ROPS/FOPS
Increased productivity
● Highest HP in its class
● Electronically-controlled hydraulically-driven fan
● In-shoe final drive
● High capacity Pitch- Adjustable Power-Angle-Tilt
dozer blade
Easy operation/Increased operator
comfort
● Hydrostatic Transmission (HST) with electronic
control
● Palm Command Control System (PCCS)
● Large and quiet pressurized cab (optional)
● New cab damper mounting system (for cab)
Improved durability
● Heavy-plate steel used throughout
● Modular design
Easy maintenance
● Electronic monitor panel with on-board diagnostics
● Rear-mount radiator with swing-up hydraulically-
driven fan
● Ground-level daily service checks
Photo may include optional equipment.
Page 3
D39-22
CRAWLER DOZER
D39-22 C RAWLER D OZER
See what you have been missing!
See what you have been missing!
Unrivaled blade visibility
The D39EX/PX-22 incorporates Komatsu’s super-slant nose design.
Komatsu’s innovative design provides excellent blade visibility for
improved machine control and increased efficiency and productivity.
54
Photo may include optional equipment.
Page 4
OPERATOR COMFORT
D39-22
CRAWLER DOZER
D39-22 C RAWLER D OZER
DURABILITY FEATURES
HST with electronic control
The D39 is equipped with Komatsu-designed Hydrostatic
Tr ansmission (HST) that allows for Quick-Shift or variable
speed selection. The HST consists of dual-path closed-
circuits with two variable displacement piston pumps and
two variable displacement travel motors. Hydrostatic
steering eliminates steering clutches and brakes, providing
smooth powerful turns. Fully electronic control provides full
automatic shifting and enables smooth control. Engine
speed is controlled using an electronic fuel control dial.
Comfortable ride with cab damper mounting
The D39’s cab mount uses a cab damper system that
provides excellent shock and vibration absorption which
conventional mounting systems are unable to match. The
silicon oil filled cab damper mount helps to isolate the cab
from the machine body, suppressing vibration and providing
a quiet, comfortable operating environment.
Palm command Proportional Pressure Control
(PPC)
PPC-controlled palm command joystick provides blade
control. Combined with the highly reliable Komatsu
hydraulic system, precise control is the result.
Closed-center Load Sensing System (CLSS)
hydraulic system
With CLSS hydraulics, blade lever stroke is directly
proportional to blade speed, regardless of the load and
travel speed. This results in superb fine controllability.
Palm Command Control System (PCCS)
The low-effort PCCS joystick controls all directional
movements including machine travel speed as well as
counter-rotation.
Spring
Silicon oil
Rubber
Boot
Heavy-duty undercarriage
Large link, large bushing diameter, and wider sprocket teeth
extend undercarriage life.
Protected travel motors and final drives
Tr avel motors and final drives are mounted within the track
shoe width for protection from rocks and stumps, and for
improving durability.
Monocoque track frame
Komatsu’s monocoque track frame design using thicker box
section material and fewer welded components provides
increased rigidity and strength.
One-piece nose guard
Simplified high-rigidity structure with thicker plates reduces
vibration and noise.
Main frame
High-rigidity simple main frame structure combined with
thick plates and steel castings provide increased reliability
and durability.
Modular design
One of the design goals behind the creation of the D39 was
to manufacture a more durable machine. This was achieved
by reducing component complexity and using a strong
modular design for increased serviceability and durability.
6 7
Photo may include optional equipment.
Photo may include optional equipment.
Motor cover
Motor cover
Up Shift
LH
F
R
RH
Down Shift
Page 5
PRODUCTIVITY FEATURES
D39-22
CRAWLER DOZER
D39-22 C RAWLER D OZER
MAINTENANCE FEATURES
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.
Page 6
SPECIFICATIONS
D39-22
CRAWLER DOZER
D39-22 C RAWLER D OZER
10 11
STEERING SYSTEM
Palm Command Control System (PCCS) joystick control for all
directional movements. Pushing the joystick forward results in
forward machine travel, while pulling it rearward reverses the
machine. Simply tilt the joystick to the left or right to make a turn.
Tilting the joystick fully to the left or right activates counter-rotation.
Hydrostatic Transmission (HST) eliminates steering clutches and
brakes, providing smooth powerful turns. Fully electronic control
enables smooth control. The PCCS utilizes shift buttons to increase
and decrease speed.
Minimum turning radius:
D39EX-22 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2.2 m 7'3"
D39PX-22 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2.4 m 7'10"
As measured by track marks on the ground at pivot turn.
UNDERCARRIAGE
Suspension . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Rigid type
Tr ack roller frame . . . . . . . . . . . . . . . . . . . Monocoque, large section,
durable construction
Rollers and idlers. . . . . . . . . . . . . . . . . . . . . . Lubricated track rollers
Lubricated tracks
Unique seals prevent entry of foreign abrasive material into pin to
bushing clearances to provide extended service life. Track tension
is easily adjusted with a grease gun.
ENGINE
Model. . . . . . . . . . . . . . . . . . . . . . . . . . . . . Komatsu SAA4D107E-1*
Type. . . . . . . . . . . . . . . . . . . . . 4-cycle, water-cooled, direct injection
Aspiration . . . . . . . . . . . . . . . . . . Turbocharged, air-to-air aftercooled
Number of cylinders . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Bore x stroke . . . . . . . . . . . . . . . . 107 mm x 124 mm 4.21" x 4.88"
Piston displacement. . . . . . . . . . . . . . . . . . . . . . . . . . 4.46 ltr 272 in
3
Governor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . All-speed, electronic
Horsepower
SAE J1995 . . . . . . . . . . . . . . . . . . . . . . . . Gross 79.9 kW 107 HP
ISO 9249 / SAE J1349 . . . . . . . . . . . . . . . . . . Net 79 kW 105 HP
Hydraulic fan at maximum speed. . . . . . . . . . . Net 71 kW 95 HP
Rated rpm . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2200 rpm
Fan drive type . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Hydraulic
Lubrication system
Method . . . . . . . . . . . . . . . . . . . . . . . Gear pump, force lubrication
Filter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Full-flow
*EPA Tier 3 emissions certified
HYDROSTATIC TRANSMISSION
Dual-path, hydrostatic transmission provides infinite speed changes
up to 8.5 km/h 5.3 mph. The variable capacity travel motors allow
the operator to select the optimum speed to match specific jobs.
Tr avel control lock lever and neutral switch.
FINAL DRIVES
Tw o-stage planetary gear integrated into axial piston travel motors.
Compact in-shoe mount reduces risk of damage by debris. Bolt-on
sprocket for easy replacement.
Travel speed
(quick shift mode)
Forward Reverse
1st 0–3.4 km/h 0–2.1 mph 0–4.1 km/h 0–2.5 mph
2nd 0–5.6 km/h 0–3.5 mph 0–6.5 km/h 0–4.0 mph
3rd
0–8.5 km/h 0–5.3 mph 0–8.5 km/h 0–5.3 mph
Travel speed
(variable mode)
Forward Reverse
0–8.5 km/h
0–5.3 mph 0–8.5 km/h 0–5.3 mph
0
012345mp/h
00
5
10
15
US ton
5
10
15
ton
2468km/h
Drawbar Pull
Tra vel Speed
COOLANT AND LUBRICANT
CAPACITY (REFILL)
Coolant. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23 ltr 6.1 U.S. gal
Fuel tank. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 195 ltr 51.5 U.S. gal
Engine oil . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15 ltr 4.0 U.S. gal
Hydraulic tank. . . . . . . . . . . . . . . . . . . . . . . . . . 60 ltr 15.9 U.S. gal
Final drive (each side) . . . . . . . . . . . . . . . . . . . 3.5 ltr 0.9 U.S. gal
D39-22
Drawbar pull vs. speed.
maximum usable pull depends on
traction and weight of tractor.
DIMENSIONS
OPERATING WEIGHT (
APPROXIMATE)
Tractor weight:
Including ROPS canopy, rated capacity of lubricant, coolant, full fuel
tank, operator, and standard equipment.
D39EX-22. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7800 kg 17,196 lb
D39PX-22. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8160 kg 17,990 lb
Operating weight:
Including power angle tilt dozer, ROPS canopy, operator, standard
equipment, rated capacity of lubricant, coolant, and full fuel tank.
D39EX-22. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9040 kg 19,930 lb
D39PX-22. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9480 kg 20,900 lb
DOZER EQUIPMENT
Use of high tensile strength steel in moldboard for strengthened blade construction.
HYDRAULIC SYSTEM
Closed-center Load Sensing System (CLSS) designed for precise
and responsive control and for efficient simultaneous operation.
Hydraulic control unit:
All spool control valves externally mounted remote to the hydraulic
tank. Piston-type hydraulic pump with capacity (discharge flow) of 99
ltr/min 26.2 U.S. gal/min at rated engine rpm.
Relief valve setting . . . . . . . . . . . . . 27.4 MPa, 280 kg/cm23,983 psi
Hydraulic cylinders . . . . . . . . . . . . . . . . . . Double-acting, piston type
Hydraulic oil capacity (refilling):
Power angle tilt dozer . . . . . . . . . . . . . . . . . . . . . 60 ltr 15.9 U.S. gal
Control valves:
3-spool control valve for power angle tilt dozer.
Positions:
Blade lift. . . . . . . . . . . . . . . . . . . . . . . Raise, hold, lower, and float
Blade tilt . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Right, hold, and left
Blade angle . . . . . . . . . . . . . . . . . . . . . . . . . . Right, hold, and left
Additional control valve required for ripper.
Positions:
Ripper lift. . . . . . . . . . . . . . . . . . . . . . . . . . . Raise, hold and lower
Number of cylinders Bore
Blade lift 2 75 mm 2.95"
Blade tilt 1 90 mm 3.54"
Blade angle 2 80 mm 3.15"
D39EX-22 D39PX-22
A 1280 mm 4'2" 1280 mm 4'2"
B 2710 mm 8'11" 3250 mm 10'8"
B—2980 mm 9'9"
C 370 mm 1'3" 445 mm 1'5"
C— 405 mm 1'4"
D 2730 mm 8'11" 2730 mm 8'11"
E 900 mm 2'11" 900 mm 2'11"
F 450 mm 1'6" 450 mm 1'6"
G 2360 mm 7'9" 2360 mm 7'9"
H 4335 mm 14'3" 4335 mm 14'3"
I 2245 mm 7'4" 2245 mm 7'4"
J 2835 mm 9'4" 2835 mm 9'4"
K 53 mm 2.1" 53 mm 2.1"
L 1650 mm 5'5" 1790 mm 5'10"
M 460 mm 18.1" 635 mm 25.0"
N 2110 mm 6'11" 2425 mm 7'11"
O 2490 mm 8'2" 2980 mm 9'9"
O—2750 mm 9'0"
*Narrow blade for D39PX-22
* Including Hitch
Ground clearance . . . . . . . . . . . . . . . . . . . . . . . . . . . . 385 mm 15.2"
D39EX-22 D39PX-22
Number of track rollers (each side) 6 6
Type of shoes (standard) Single grouser Single grouser
Number of shoes (each side) 39 39
Grouser height 53 mm 2.1" 53 mm 2.1"
Shoe width (standard) 460 mm 18.1" 635 mm 25.0"
Ground contact area
21710 cm
2
29970 cm
2
3,365 in
2
4,645 in
2
Ground pressure 40.8 kPa 31.0 kPa
(with dozer, ROPS cab) 0.42 kgf/cm
2
0.32 kgf/cm
2
5.92 psi 4.50 psi
Track gauge 1650 mm 5'5" 1790 mm 5'10"
Length of track on ground
2360 mm 7'9" 2360 mm 7'9"
25
25
B
GL
C
F
E
D
G
I
J
K
M
LN
O
H
A
Overall length Blade Blade Maximum lift Maximum drop Maximum tilt Blade
with dozer* capacity (SAE) width x height above ground below ground adjustment angle
D39EX-22 PAT 4325 mm 2.21 m
3
2710 mm x 980 mm 900 mm 450 mm 370 mm
25
Standard Blade 14'2" 2.89 yd
3
8'11" x 3'3" 2'11" 1'6" 1'3"
D39PX-22 PAT 4325 mm 2.30 m
3
3250 mm x 910 mm 900 mm 450 mm 440 mm
25
Standard Blade 14'2" 3.00 yd
3
10'8" x 3'0" 2'11" 1'6" 1'5"
D39PX-22 PAT 4325 mm 2.08 m
3
2980 mm x 910 mm 900 mm 450 mm 405 mm
25
Narrow Blade 14'2" 2.72 yd
3
9'9" x 3'0" 2'11" 1'6" 1'4"
*
*
*
Loading...