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Komatsu Dozers D37PXi-23

Komatsu Dozers D37PXi-23
D37PXi-23 Crawler Dozer
iMC (intelligent machine control) machines have the following advantages over dozers with external grade control systems.

Innovative
Automated operation from rough dozing to finish grade.

Intelligent
New dozing mode, load control performance features.

Integrated
Standard factory installed integrated system.

No Cables
No coiled cables between machine and blade.

No Climbing
GNSS antenna and mast removed from blade.

No Connections
No daily connections required between machine and blade.

Engine
Model Komatsu SAA4D95LE-6*
Type 4-cycle, water-cooled, direct injection
Aspiration Variable flow, turbocharged, air-to-air aftercooled
Number of cylinders 4
Bore x stroke 3.75" x 4.52" 95 mm x 115 mm
Piston displacement 199 i³ 3.26 ltr
Governor All-speed, electronic
Horsepower
SAE J1995 - Gross 91 HP 68 kW
ISO 9249 / SAE J1349 - Net 89 HP 66 kW
Rated rpm 2200 rpm
Fan drive type Hydraulic
Lubrication system:
Method Gear pump, force lubrication
Filter Full-flow
*EPA Tier 4 Interim and EU stage 3B emissions certified
Hydrostatic transmission
Dual-path, hydrostatic transmission provides infinite speed changes up to 5.3 km/h / 8.5 mph. The variable capacity travel motors allow the operator to select the optimum speed to match specific jobs. Travel control lock lever and neutral switch.
Travel speed (quick shift mode)* Forward Reverse
1st 0–2.1 mph
0–3.4 km/h
0–2.5 mph
0–4.1 km/h
2nd 0–3.5 mph
0–5.6 km/h
0–4.0 mph
0–6.5 km/h
3rd 0–5.3 mph
0–8.5 km/h
0–5.3 mph
0–8.5 km/h
Travel speed (variable mode) Forward Reverse
0–5.3 mph
0–8.5 km/h
0–5.3 mph
0–8.5 km/h
*Quick shift speeds are adjustable in the monitor.
FINAL DRIVE
In-shoe mounted axial piston type travel motors with integrated twostage planetary gear reduction. Compact in-shoe mount reduces risk of damaged by debris. Bolt-on sprocket ring.
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) provides smooth powerful turns. Fully electronic control enables smooth control that can be adjusted in the monitor. The PCCS utilizes shift buttons to increase and decrease speed

Minimum turning radius* 91" 2.3 m
*As measured by track marks on the ground at pivot turn.

 

Undercarriage
Suspension Rigid track frame
Track roller frame Monocoque, large section, durable construction
Rollers and idlers Lubricated track rollers
Sealed and lubricated track Track tension is easily adjusted with grease gun.
Tractor for inside mounted blade (PAT)
Number of track rollers (each side) 6
Number of carrier rollers (each side) 1
Type of shoes (standard) Single grouser
Number of shoes (each side) 41
Grouser height 1.9" 47 mm
Shoe width (standard) 24" 600 mm
Ground contact area 4,148 in² 26760 cm²
Ground pressure
(with standard shoe)
4.67 psi 0.33 kgf/cm² / 32.2 kPa
Track gauge 5'7" 1710 mm
Length of track on ground 7'4" 2230 mm
Link pitch 6.1" 154 mm
SERVICE REFILL CAPACITIES
Coolant 9.0 U.S. gal 34 ltr
Fuel tank 50.2 U.S. gal 190 ltr
Engine oil 2.9 U.S. gal 11 ltr
Hydraulic tank 16.9 U.S. gal 64 ltr
Final drive (each side) 0.9 U.S. gal 3.5 ltr
Operating Weight (approximate)
Tractor weight: Including ROPS cab, U frame for power angle tilt dozer, rated capacity of lubricant, coolant, full fuel tank, operator, and standard equipment. 17,064 lb 7740 kg
Operating weight: Operating weight: Including power angle tilt dozer, ROPS cab, operator, standard equipment, rated capacity of lubricant, coolant, and full fuel tank. 19,533 lb 8860 kg
HYDRALIC 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 U.S. gal/min at rated engine rpm.
Relief valve setting 3,974 psi 27.4 MPa / 280 kg/cm²
Hydraulic cylinders Double-acting, piston type
Number of cylinders: Bore Bore
Blade lift / 2 3.0" 75 mm
Blade tilt / 1 3.5" 90 mm
Blade angle / 2 3.1" 80 mm
Blade pitch 1 adjustable linkage
Hydraulic oil capacity (refilling):
Power angle tilt dozer 15.9 U.S. gal 60 ltr
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

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