Komatsu D85PX-18 WH Bulldozer

Komatsu D85PX-18 WH Bulldozer

Rated rpm 1900 rpm
Operating Weight 32070 kg 70,702 lb
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Tank Guard

9.5 mm 0.375" thick guarding protects the sides and rear of the fuel tank and hydraulic tank from damage and debris.

D85-18 WH  

Additional Engine Hood Perforations

Additional perforated material increases air flow to the radiator and prevents large airborne materials from entering the engine compartment.

D85-18 WH  

Door Seal Guards

These sheet metal guards are welded to the perimeter of the engine compartment doors, providing an overlapping barrier against material intrusion into the engine compartment.

D85-18 WH  

Front Striker Bars

Front striker bars are designed to prevent debris from riding up on the tracks and damaging the chassis or cab glass. The bolt-on design allows for easy servicing.

D85-18 WH  

HD Counterweight with Rear Striker Bars

The 1682 kg 3,708 lb for the PX model and the 2000 kg 4,409 lb for the EX model counterweight optimizes machine balance for landfill applications.

D85-18 WH  

Relocated Hydraulic Cooler

The hydraulic oil cooler is relocated to the rear to increase cooling efficiency. It features a flexible core heat exchanger for easier cleaning and maintenance.

D85-18 WH  

Roof Mounted AC Condenser

The AC condenser is mounted to the roof to protect it from debris and to increase cooling efficiency.

D85-18 WH  

Engine Thermal Guard

The thermal guard covers the exhaust manifold, hot side of the turbocharger, KDPF, and SCR system, reducing the potential for combustible debris to come in contact with hot surfaces.

D85-18 WH  

Engine Pre-cleaner with Screen

A protective screen is added to the standard centrifugal engine air pre-cleaner to remove large particles from the air before they reach the filter elements.

D85-18 WH  

Powered Engine Underguard

The electric winch located on the inside of the main frame lowers and raises the underguard, providing easy access to the engine compartment for cleaning accumulated trash.

D85-18 WH  

Two Piece Radiator Doors and Auto Reversing Fan

The two-piece radiator guard doors allow access to the standard wide-core radiator for cleaning. Adjustable fan reversing interval and duration allow the operator to concentrate on productivity, while helping to keep the radiator clean.

D85-18 WH  

Additional Work Lights

The two hood-mounted lights are replaced with four LED work lights mounted high on the blade lift cylinders, casting light over the trash rack.

D85-18 WH  

Trash Rack

The see-through vertical bars of the trash rack are designed to ensure good operator visibility. The trash rack and blade are both painted matte black to reduce glare.

D85-18 WH  

Cab Air Pre-cleaner

The optional, cab air-filtration system provides pre-cleaned, filtered air to the HVAC system. The cab is pressurized to minimize odors and dust.

D85-18 WH  

Engine

Model
Komatsu SAA6D125E-7*
Type
4-cycle, water-cooled, direct injection
Aspiration
Komatsu variable geometry turbocharged, air-to-air aftercooled
No. of cylinders
6
Bore x stroke125 mm x 150 mm4.49" x 5.69"
Piston displacement11.04 ltr674 in³
Governor
All-speed and mid-range, electronic
Horsepower:

   SAE J1995 / Gross199 kW267 HP
   ISO 9249 / SAE J1349* / Net197 kW264HP
Rated rpm
1900 rpm
Fan drive type
Hydraulic
Lubrication system:

   Method
Gear pump, force lubrication
   Filter
Full-flow
**EPA Tier 4 Final emissions certified

TORQFLOW Transmission

Komatsu TORQFLOW transmission consists of a water-cooled, 3-element, 1-stage, 1-phase and a planetary gear, multipledisc clutch transmission which is electronically controlled, hydraulically actuated and force-lubricated for optimum heat dissipation. Shift lock lever and neutral safety switch.

Travel speed:Forward:Reverse:
1st3.3 km/h
2.1 mph
4.4 km/h
2.7 mph
2nd6.1 km/h
3.8 mph
8.0 km/h
5.0 mph
3rd L7.8 km/h
4.8 mph
9.2 km/h
5.7 mph
3rd10.1 km/h
6.3 mph
13.0 km/h
8.1 mph

Steering System

Palm Command Control System (PCCS) lever controls for all directional movements. Pushing the PCCS lever forward results in forward machine travel, while pulling it rearward reverses the machine. Simply tilt the PCCS lever to left to make a left turn. Tilt it to the right for a right turn.

Hydrostatic Steering System (HSS) is powered by steering planetary units and an independent hydraulic pump and motor. Counterrotation turns are also available. Wet, multiple-disc, pedal-controlled service brakes are spring-actuated and hydraulically released. Gear shift lock lever also applies parking brake.

Minimum turning radius:

D85EX-182.0 m6'6"
D85PX-182.2 m7'3"

Undercarriage

Suspension
Oscillating equalizer bar and pivot shaft
Track roller frame
Monocoque, large section, durable construction
Rollers and idlers
Lubricated
Track shoes
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 grease gun.
Number of track rollers (each side)
8
Type of shoes (standard)
Single grouser
Number of shoes (each side)
45
Grouser height72 mm2.8"
Shoe width (standard)910mm36"
Ground contact area63340 cm²9,820 in²
Ground pressure
(with dozer, cab and ROPS)
0.40 kg/cm²
39.8 kPa
5.77 psi
Track gauge2250 mm7'5"
Length of track on ground3480 mm11'5"

Final Drive

Double-reduction final drive of spur and planetary gear sets to increase tractive effort and reduce gear tooth stresses for long final drive life. Segmented sprocket teeth are bolt-on for easy replacement. Triple labyrinth protects seals and improves durability.

Hydraulic System

Closed-center load sensing system (CLSS) designed for precise            and responsive control, and for efficient simultaneous operation.

Hydraulic control units:

All spool valves externally mounted beside the hydraulic tank.            Piston type hydraulic pump with capacity (discharge flow) of            331 ltr/min 87.4 U.S. gal/min at rated engine rpm.

Relief valve setting22.6 MPa
3,270 psi
Control valves:

Spool control valves for semi-u tilt or straight tilt dozer

Positions:  
   Blade lift
Raise, hold, lower, and float
   Blade tilt
Right, hold, and left
   Rear attachment
Raise, hold, and lower

Service Refill Capacities

Fuel tank470 ltr124.1 U.S. gal
DEF tank23.5 ltr6.2 U.S. gal
Coolant65 ltr17.2 U.S. gal
Engine38 ltr10.0 U.S. gal
Damper case
1.6 ltr0.42 U.S. gal
Torque converter, transmission, bevel gear, and steering system60 ltr15.8 U.S. gal
Final drive (each side)36 ltr9.5 U.S. gal

Operating Weight

Tractor weight:

Including ROPS cab, rated capacity of lubricant, hydraulic control unit, coolant, full fuel tank, operator, and standard equipment.25700 kg56,660 lb
Operating weight:

Including SEMI-U (EX) or straight tilt dozer (PX), landfill counterweight, rear striker bars, standard waste handler equipment, ROPS cab, rated capacity of lubricant, hydraulic control unit, coolant, and full fuel tank.32070 kg70,702 lb

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