Page 1
OPTIONAL EQUIPMENT
STANDARD EQUIPMENT FOR BASE MACHINE
Photo may include optional equipment.
www.Komatsu.com Printed in Japan 200802 IP.AD (05)
CEN00163-01
Materials and specifications are subject to change without notice.
is a trademark of Komatsu Ltd. Japan.
HORSEPOWER
Net: 149 kW
200 HP @ 1950 rpm
OPERATING WEIGHT
20670 kg
45,570 lb
D
85ESS
D85ESS-2A
WITH STEERING CLUTCH/BRAKE SYSTEM
● Air cleaner, double element with
dust indicator
● Alternator, 35 ampere/24V
● Batteries, 140 Ah/2 x 12V
● Blower cooling fan
● Decelerator pedal
● Engine hood
● Fenders
● Lighting system, (includes 2 front, 1 rear)
● Mono-lever steering
● Muffler with curved exhaust pipe
● Radiator guard door, flat
● Radiator reserve tank
● Rear cover
● ROPS mounting brackets
● Starting motor, 7.5 kW/24V
● Seat, adjustable
● Tr ack roller guard, end sections
● Tr ack shoe assembly
—Sealed and lubricated track
● 510 mm 20" single grouser shoe
● Underguards, oil pan and transmission
● Wet, multiple-disc steering clutch/blake
● Air conditioner
● Backup alarm
● Cab
● Cab accessories
—Cup holder
—Rear view mirror
● Cooling fan, reversible
● Electronic instrument monitor panel
● Engine side covers, gull-wing
● Front pull hook
● Heater and defroster
● Hitch type drawbar
● High mount foot rests
● Hydraulics for ripper
● Hydraulics for tilt dozer
● Intake pipe with precleaner
● Light working, cab additional
● Locks, filler caps and covers
● Pressure check ports for power train
● Radiator core protective grid
● Rigid type drawbar
● ROPS canopy
● ROPS canopy with sweep
● Seat belt, retractable
● Suspension seat, with high-back
● Suspension seat, reclining with fabric
material (cab only)
● Tr ack roller guard, full length
● Underguard, heavy-duty
● Vandalism protection cover
for instrument panel
● Water separator
ROPS CANOPY
● Additional weight 420 kg 930 lb
● Meets ISO 3471 and SAE J1040 APR88,
ROPS standards, and ISO 3449 FOPS
standard.
● Roof dimensions:
—Length: 1830 mm 6'0"
—Width: 1600 mm 5'3"
—Height from operator compartment
floor: 1700 mm 5'7"
STEEL CAB
● Additional weight 285 kg 630 lb
● All-weather, enclosed pressurized cab
● Dimensions:
—Length: 1765 mm 5'9"
—Width: 1720 mm 5'8"
—Height: 1625 mm 5'4"
—Height from floor to celling:
1515 mm 5'0"
MULTI-SHANK RIPPER
● Additional weight (including hydraulic
control unit): 1680 kg 3,700 lb
● Beam length: 2170 mm 7'1"
●
Maximum digging depth: 595 mm 1'11"
●
Maximum lift above ground: 640 mm 2'1"
SHOES
Shoe Additional weight
Ground contact
area
560 mm 22.0"
+120 kg 33380 cm
2
single-grouser
+260 lb 5,170 in
2
shoe
610 mm 24.0"
+230 kg 36360 cm
2
single-grouser
+510 lb 5,640 in
2
shoe
660 mm 26.0"
+360 kg 39340 cm
2
single-grouser
+790 lb 6,100 in
2
shoe
ROPS CANOPY FOR CAB
● Additional weight 340 kg 750 lb
● Meets ISO 3471 and SAE J1040 APR88,
ROPS standards, and ISO 3449 FOPS
standard.
● Roof dimensions:
—Length: 1270 mm 4'2"
—Width: 1490 mm 4'11"
—Height from operator compartment
floor: 1705 mm 5'7"
C
RAWLER
D
OZER
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HORSEPOWER
Net: 149 kW 200 HP @ 1950 rpm
OPERATING WEIGHT
20670 kg 45,570 lb
BLADE CAPACITY (SAE)
Straight Tilt Dozer:
4.4 m35.8 yd
3
Angle Dozer:
3.4 m34.4 yd
3
32
Photo may include optional equipment.
W
ALK
-A
ROUND
D85ESS
CRAWLER DOZER
D85ESS-2A C RAWLER D OZER
Electronic monitoring system prevents
minor problems from developing into major ones.
(optional)
Optional hexagonal, low noise cab
with viscous damping mounts provides unsurpassed
operator comfort and visibility.
Wet, multiple-disc brakes
eliminates brake-band adjustments
for maintenance-free operation.
Modular power train for increased
serviceability and durability.
Bolt-on segmented sprocket teeth
for easy in-the-field replacement
Gull-wing engine side covers
for easy and safer servicing.
(optional)
The Komatsu S6D125E-2 diesel engine
provides an output of 149 kW 200 HP with
excellent productivity.
High capacity
Straight tilt dozer
combined the highest power in its class
with outstanding productivity.
Komatsu Torqflow transmission
offers single lever control of speed (3 forward
and 3 reverse) and directional changes.
Blade tilt lines
completely protected.
Forward mounted
pivot shafts
isolate final drives from blade loads.
Left hand
joystick controls all
tractor motion. Right hand joystick
controls all blade movements.
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4 5
OPERATOR’S COMPARTMENT
D85ESS
CRAWLER DOZER
D85ESS-2A C RAWLER D OZER
Electronic monitoring
system (optional)
An electronic monitoring
system prevents minor
problems from developing
into major ones. All meters
and gauges are controlled by
a microcomputer, which
provides a wide indication
range for an easier, more precise reading.
Hexagonal pressurized cab (optional)
Air filters and a higher internal air pressure combine to
prevent external dust from entering the cab. In addition, the
cab’s hexagonal design provides excellent front, side, and
rear visibility. The viscous damper cab suspension softens
shocks for operator comfort and extends component life.
Low-noise design
For smoother riding comfort, power train components and
hydraulic control valves are mounted to the frame with
rubber pads to soften vibration and shut out noise.
Since the D85ESS employs joysticks, the walk-through
operator compartment is uncluttered for smooth entry
and exit. An adjustable seat with backrest is standard
equipment.
Three-stage height adjustable armrests
Three-stage height adjustable armrests and relocated fuel
control lever provide
comfortable operation and
increased leg space.
Easy-to-operate work equipment control lever
With the Closed-center Load Sensing (CLSS) hydraulic
system, blade lever stroke is directly proportional with blade
speed, regardless of the load and travel speed. This results
in superb, fine controllability.
Benefits of CLSS
● More precise and responsive operation due to the
pressure compensation valve.
● Reduced fuel consumption by discharging only the
required amount of oil from the pump.
● The work equipment moves smoothly for operations such
as side-cutting even when priority is given to steering.
All steering, direction, and speed changes are made by a left-hand single joystick control. If the operator wants to
move the machine forward and to the left, he simply moves the joystick forward and to the left. If he desires a gear change,
he merely twists his wrist. The machine responds to the movement of the lever providing the operator with the feeling of
natural control with Komatsu’s joystick.
Cylinder
Unload
valve
Tank
Cylinder
Unload
valve
Tank
PPC
PPC
CLSS for D85ESS-2A
Steering
functions
Forward and
reverse
Right and left
steering
First, to second,
to third shifting
Left Hand
Right Hand
Blade
functions
Lifting and
lowering
Tilting
RELIABILITY FEATURES
E
ASY
M
AINTENANCE
Field-proven engine
Powerful S6D125E-2 diesel engine provides a massive
output of
149 kW 200 HP. The engine power is transmitted
smoothly to the final drives via a high-efficiency torque
converter.
Modular designed power train units
The modular design allows easy removal and installation of
any individual unit for shorter downtime.
Flat bottom frame
A flat bottom frame, the monocoque track frames and
forward-mounted pivot shafts provide good maneuverability
in muddy terrain by preventing mud from building up under
the frame.
Sturdy design
Because fewer components mean greater reliability, we’ve
designed a simple hull frame made of a thick, single plate.
Tr ack frames have a large-section construction for maximum
rigidity. Even the box-section construction of the blade back
beam is reinforced, all with durability in mind.
Wet, multiple-disc brakes
Eliminate brake-band
adjustments for
maintenance-free operation.
Coolant reservoir
A radiator coolant reservoir makes it easier to
check the coolant level and eliminates
frequent refilling.
Oil pressure check ports
(optional)
Oil pressure check ports for the
power train are centralized on the
right hand side of the operator
platform for easy access.
Gull-wing engine side covers (optional)
A gas-spring cylinder opens the gull-wing engine side covers
widely, allowing the engine and auxiliary components to be
easily checked.
Tough undercarriage
Large-diameter bushings, increased track link heights, and
improved oil-seals help to increase undercarriage durability.
Serviceability has also been improved with the addition of
remote greasing of the equalizer bar center pin.
Low drive and long track undercarriage
Komatsu’s design is extraordinarily tough and offers excellent
grading ability and stability.
Engine
Hull frame
Power train unit
Final drive
Pivot shaft
Tr ac k frame
Shoe
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76
S
PECIFICATIONS
D85ESS
D85ESS-2A C RAWLER D OZER
CRAWLER DOZER
ENGINE
Model. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Komatsu S6D125E-2
Type . . . . . . . . . . . . . . . 4-stroke cycle, water-cooled, direct injection
Aspiration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Turbocharged
Number of cylinders . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Bore x stroke. . . . . . . . . . . . . . . . . 125 mm x 150 mm 4.92" x 5.91"
Piston displacement. . . . . . . . . . . . . . . . . . . . . . . . . 11.04 ltr 674 in
3
Governor . . . . . . . . . . . . . . . . . . . . . . . . . . . . All-speed, mechanical
Horsepower
ISO 9249 / SAE J1349 . . . . . . . . . . . . . . . . . . Net 149kW 200HP
Rated rpm. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1950rpm
Fan drive type . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Mechanical
Lubrication system
Method . . . . . . . . . . . . . . . . . . . . . . Gear pump, forced lubrication
Filter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Full-flow
Net maximum torque. . . . . 981 N•m 100 kg•m 723 lb ft @ 1200 rpm
TORQFLOW TRANSMISSION
Komatsu’s TORQFLOW transmission consists of a water-cooled,
3-element, 1-stage, 1-phase torque converter and a planetary gear,
multiple-disc clutch transmission which is hydraulically actuated and
force-lubricated for optimum heat dissipation. Joystick control of
gears (3 forward and 3 reverse) and directional steering changes.
Gearshift lock lever and neutral safety switch prevent machine
from accidental starts.
Travel speed Forward Reverse
1st 0–3.9 km/h 0–2.4 mph 0–5.0 km/h 0–3.1 mph
2nd 0–6.8 km/h 0–4.2 mph 0–8.6 km/h 0–5.3 mph
3rd 0–10.6 km/h 0–6.6 mph 0–13.4 km/h 0–8.3 mph
0
14
12
10
86
4
2
km/h
0
10
30
20
mph
0 8642
0
40
80
120
280
160
320
200
240
0
8
16
24
56
32
64
40
48
Drawbar pull
Travel speed
lb x 10
3
kg x 10
3
kN
F1
F2
F3
D85ESS-2A
Power Shift
DRAWBAR PULL VS. SPEED.
MAXIMUM USABLE PULL
DEPENDS ON TRACTION AND
WEIGHT OF TRACTOR
INCLUDING MOUNTED
EQUIPMENT.
FINAL DRIVES
Double-reduction final drives of spur gear and planetary gears to
minimize transmission of shocks to power train components.
Segmented sprocket are bolt-on for easy in-the-field replacement.
COOLANT AND LUBRICANT
CAPACITY (REFILL)
Coolant. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52 ltr 13.7 U.S. gal
Fuel tank . . . . . . . . . . . . . . . . . . . . . . . . . . . . 406 ltr 107.3 U.S. gal
Engine oil . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38 ltr 10.0 U.S. gal
Damper . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.7 ltr 0.4 U.S. gal
Tr ansmission, bevel gear,
and steering system . . . . . . . . . . . . . . . . . . . 48 ltr 12.7 U.S. gal
Final drive (each side). . . . . . . . . . . . . . . . . . . . 27 ltr 7.1 U.S. gal
STEERING SYSTEM
Joystick controls 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 to make a
left turn. Tilt it to the right for a right turn.
Wet, multiple-disc steering clutches are hydraulically loaded and
hydraulically released. Wet, multiple-disc brakes are spring-actuated
and hydraulically released.
Steering brakes also function as service and parking brakes.
Minimum turning radius*:. . . . . . . . . . . . . . . . . . . . . . . . . 3.4 m 11'2"
*As measured by track marks on ground.
UNDERCARRIAGE
Suspension . . . . . . . . . . . . . . . . . . . . . Oscillation with equalizer bar
and forward mounted pivot shafts
Tr ack roller frame . . . . . . . . . . . . . . . . . . . Monocoque, large section,
durable construction
Tr ack shoes. . . . . . . . . . . . . . . . Lubricated tracks. Unique dust seals
for preventing entry of foreign abrasives into
pin-to-bushing clearances for extended service.
Tr ack tension is easily adjusted with a grease gun.
Number of carrier rollers (each side) . . . . . . . . . . . . . . . . . . . . . . . . 2
Number of track rollers (each side) . . . . . . . . . . . . . . . . . . . . . . . . . 8
Ground contact area . . . . . . . . . . . . . . . . . . . . . 30400 cm24,710 in
2
Ground pressure . . . . . . . . . . . . . . . . 50.0 kPa 0.50 kg/cm27.25 psi
OPERATING WEIGHT
Tractor weight:
Including rated capacity of lubricant, coolant, full fuel tank, operator
and standard equipment. . . . . . . . . . . . . . . . . . . 15420 kg 34,000 lb
Operating weight:
Including angle dozer, multi-shank ripper, FRP canopy(optional),
operator, standard equipment, and rated capacity of lubricants,
coolant, and full fuel tank. . . . . . . . . . . . . . . . . . . 20670 kg 45,570 lb
HYDRAULIC SYSTEM
Closed-center load sensing system (CLSS) designed for precise
and responsive control, and for efficient simultaneous operation.
Hydraulic control units:
All spool control valves externally mounted beside the hydraulic tank.
Type of pump:
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Gear pump
Capacity (discharge flow at rated engine rpm):
. . . . . . . . . . . . . . . . . . . . . . . . . . . . 180 ltr/min 47.6 U.S. gal/min
Relief valve setting . . . . . . . . . . . . . 20.6 MPa 210 kgf/cm22,990 psi
Hydraulic cylinders . . . . . . . . . . . . . . . . . . . . . . Double-acting, piston
Control valves:
Spool control valve for semi-U tilt dozer and straight tilt dozer.
Positions: Blade lift . . . . . . . . . . . . . . . Raise, hold, lower, and float
Blade tilt . . . . . . . . . . . . . . . . . . . . . Right, hold, and left
Spool control valve for angle dozer.
Positions: Blade lift . . . . . . . . . . . . . . . Raise, hold, lower, and float
Additional control valve for multi-shank ripper
Positions:Ripper lift. . . . . . . . . . . . . . . . . . . Raise, hold, and lower
Hydraulic oil capacity (refilling):
Straight tilt dozer. . . . . . . . . . . . . . . . . . . . . .
55.0 ltr 14.5 U.S. gal
Angle tilt dozer . . . . . . . . . . . . . . . . . . . . . . . 55.0 ltr 14.5 U.S. gal
Multi-shank ripper . . . . . . . . . . . . . . . . . . . . . 55.0 ltr 14.5 U.S. gal
Number of cylinders Bore
Blade lift 2 95 mm 3.74"
Blade tilt 1 140 mm 5.51"
Ripper lift 1 140 mm 5.51"
Remarks:
* Blade capacities are based on the SAE recommendation practice J1265.
DOZER EQUIPMENT
Use of high tensile strength steel in moldboard for strengthened blade construction.
Overall Maximum Maximum
Additional weight
length
Blade Blade Maximum lift
drop tilt
Angling
Dozer Hydraulic
with dozer
capacity* length x height above ground
below ground adjustment
angle
equipment control unit
5930 mm 3.4 m34370 mm x 1070 mm 1255 mm 485 mm 400 mm 2890 kg 540 kg
AngleDozer
19'5" 4.4 yd
3
14'4" x 3'6" 4'1" 1'7" 1'4"
25 degree
6,370 lb 1,190 lb
Straight 5615 mm 4.4 m33620 mm x 1295 mm 1070 mm 590 mm 460 mm 2220 kg 590 kg
Tilt Dozer 18'5" 5.8 yd
3
11'11" x 4'3" 3'6" 1'11" 1'6"
-4,890 lb 1,300 lb
Semi-U 5770 mm 6.8 m33640 mm x 1565 mm 1070 mm 590 mm 460 mm 2520 kg 590 kg
Tilt Dozer 18'11" 8.9 yd
3
11'11" x 5'2" 3'6" 1'11" 1'6"
-5,560 lb 1,300 lb
DIMENSIONS
Ground clearance . . . . . . . . . . . . . .400 mm 1'4"
A 2050 mm 6'9" H 5615 mm 18'5"
B 3620 mm 11'11" I 3160 mm 10'4"
C 1295 mm 4'3" J 65 mm 2.6"
D 2980 mm 9'9" K 1220 mm 4'0"
E 1070 mm 3'6" L 2170 mm 7'1"
F 590 mm 1'11" M 950 mm 3'1"
G 2980 mm 9'9"
Dimension with straight tilt dozer and multi-shank ripper.
A
C
D
E
F
J
I
HK
G
G.L.
B
L
MM
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