Komatsu D65PX-18 WH Bulldozer

Komatsu D65PX-18 WH Bulldozer

Rated rpm 1950 rpm
Operating Weight
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Tank Guard

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

D65EX-18 WH  

Chassis Seal Package

Additional sealing is added to chassis components to help reduce the amount of debris entering the bellypan.

D65EX-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.

D65EX-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.

D65EX-18 WH  

HD Counterweight with Rear Striker Bars

The 1046 kg 2,306 lbcounterweight optimizes machine balance for landfill applications. Counterweight required unless winch or ripper is ordered.

D65EX-18 WH  

Raised Cab Air Inlet with Pre-cleaner

The standard turbine type pre-cleaner removes large particles and extends cab air filter life.

D65EX-18 WH  

Roof Mounted AC Condenser

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

D65EX-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.

D65EX-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.

D65EX-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.

D65EX-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.

D65EX-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 keeping the radiator clean.

D65EX-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.

D65EX-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.

D65EX-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.

D65EX-18 WH  

Engine

Model
Komatsu SAA6D114E-6*
Type
4-cycle, water-cooled, direct injection
Aspiration
Komatsu variable geometry turbocharged, air-to-air aftercooled
Number of cylinders
6
Bore x stroke114 mm x 144.5 mm4.49" x 5.69"
Piston displacement8.85 ltr540 in³
Governor
All-speed and mid-range, electronic
Horsepower:

   SAE J1995 - Gross164 kW220 HP
   ISO 9249 / SAE J1349 - Net162 kW217 HP
Rated rpm
1950 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, 2-phase, torque converter with lockup clutch, and a planetary gear, multiple-disc clutch transmission which is electronically controlled, hydraulically actuated and force-lubricated for optimum heat dissipation. Shift lock lever and neutral safety switch.

Travel speedForwardReverse
1st3.7 km/h
2.3 mph
4.5 km/h
2.8 mph
2nd5.6 km/h
3.5 mph
6.7 km/h
4.2 mph
3rdL7.3 km/h
4.5 mph
8.7 km/h
5.4 mph
3rd11.3 km/h
7.0 mph
13.6 km/h
8.5 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 a hydraulic pump and motor. Counterrotation turns are also available. Wet, multiple-disc, pedalcontrolled service brakes are spring-actuated and hydraulically released. Gear shift lock lever also applies parking brake.

Minimum turning radius:

D65EX-181.9 m6'3"
D65EX-18 with PAT2.0 m6'7"
D65PX-182.2 m7'3"
D65WX-182.1 m6'11"


Undercarriage

SuspensionOscillating equalizer bar and pivot shaft
Track roller frameMonocoque, large section, durable construction
Rollers and idlersLubricated
Track shoesParallel Link Undercarriage System (PLUS) with lubricated rotating bushings for extended system wear life and lower maintenance costs. Track tension is easily adjusted with grease gun.

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.

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 248 ltr/min 65.5 U.S. gal/min at rated engine rpm.

Relief valve setting27.9 MPa / 285 kg/cm²4,050 psi
Control valves:

Spool control valves for SIGMADOZER® 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 tank415 ltr109.6 U.S. gal
DEF tank23.5 ltr
6.2 U.S. gal
Coolant49 ltr12.9 U.S. gal
Engine30.5 ltr8.1 U.S. gal
Torque converter, transmission, bevel gear, and steering system48 ltr12.7 U.S. gal
Final drive (each side)

D65EX-18 non PAT
16.5 ltr4.4 U.S. gal
D65EX-18 with PAT22 ltr5.8 U.S. gal
D65PX-1822 ltr5.8 U.S. gal
D65WX-1822 ltr5.8 U.S. gal

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