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Komatsu D65PXi-18 Dozer

D65PXi-18

A workhorse for your fleet



  • Horsepower: 217 HP @ 1,950 rpm
  • Operating weight: 48,620 lbs.
  • Blade capacity: 4.8 yd³

Specifications

Engine

ModelKomatsu SAA6D114E-6*
Type4-cycle, water-cooled, direct injection
AspirationKomatsu variable geometry turbocharged, air-to-air aftercooled
Number of cylinders6
Bore x stroke4.49 x 5.69 in
Piston displacement540 in³
GovernorAll-speed and mid-range, electronic
Horsepower: 
SAE J1995 - Gross220 HP
ISO 9249 / SAE J1349 - Net   217 HP
Rated rpm1,950 rpm
Fan drive typeHydraulic
Lubrication system: 
MethodGear pump, force lubrication
FilterFull-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 speed   ForwardReverse
1st2.3 mph2.8 mph
2nd3.5 mph4.2 mph
3rdL4.5 mph5.4 mph
3rd7.0 mph8.5 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 the left for a left turns, tilt it right for right turns.

Hydrostatic Steering System (HSS) power has been increased 25% by a larger HSS motor, greater hydraulic pump flow, and more engine power while steering. The result is more powerful turns and quicker counter-rotation. Wet, multiple-disc, pedalcontrolled service brakes are spring-actuated and hydraulically released. Gear shift lock lever also applies parking brake.

Minimum turning radius:    
D65EX-186 ft. 3 in
D65EXi-186 ft. 3 in
D65PX-187 ft. 3 in
D65PXi-18 7 ft. 3 in 
D65WX-186 ft. 11 in

Undercarriage

Suspension   Oscillating equalizer bar and pivot shaft
Track roller frame   Monocoque, large section, durable construction
Rollers and idlers   Lubricated
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.

Tractor for inside mounted blade (Requires Waste Package)*

 D65PX-18
Number of track rollers (each side)   8
Type of shoes (standard)  ES PLUS clipped
Number of shoes (each side) 45
Grouser height 2.6 in
Shoe width (standard) 30 in
Ground contact area
(ISO 16754) 
8,619 in2
Ground pressure (tractor)
(ISO 16754) 
5.51 psi
Track gauge 7 ft. 4 in
Length of track on ground 10 ft. 9 in

*See page 17 of spec sheet for tractor/blade combinations.

Final Drive

Double-reduction planetary gear final drives increase drawbar pull and reduce stresses for longer life. Segmented sprocket teeth are bolt-on for easy replacement. Triple labyrinth housing protects the final drive seals.

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 65.5 US gpm at rated engine rpm.

Relief valve setting   4,050 psi
Control valves: 
Spool control valves for SIGMADOZER® or straight tilt dozer    
Positions: 
Blade liftRaise, hold, lower, and float
Blade tiltRight, hold, and left
Rear attachment   Raise, hold, and lower

Service Refill Capacities

Fuel tank109.6 US gal
DEF tank6.2 US gal
Coolant12.9 US gal
Engine8.1 US gal
Torque converter, transmission, bevel gear, and steering system   
 
12.7 US gal 
Final drive (each side)   
 
7.1 US gal 
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