D37EXi-23

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Engine   
Model    Komatsu SAA4D95LE-6* 
Type    4-cycle, water-cooled, direct injection 
Aspiration    Variable flow, turbocharged, air-to-air aftercooled 
Number of cylinders   
Bore x stroke  3.75" x 4.52"  95 mm x 115 mm 
Piston displacement  199 in³  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*  83"  2.1 m 
*As measured by track marks on the ground at pivot turn.     
 
Undercarriage   
Suspension    Rigid type 
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)   
Number of carrier rollers (each side)   
Type of shoes (standard)    Single grouser 
Number of shoes (each side)    41 
Grouser height  1.9"  47 mm 
Shoe width (standard)  18"  460 mm 
Ground contact area  3,180 in²  20516 cm² 
Ground pressure
(with standard shoe) 
5.93 psi  0.42 kgf/cm² / 40.9 kPa 
Track gauge  5'2"  1570 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 (APROXIMATE)   
Tractor weight: Including ROPS cab, U frame for power angle tilt dozer, rated capacity of lubricant, coolant, full fuel tank, operator, and standard equipment.  16,491 lb  7480 kg 
Operating weight: Operating weight: Including power angle tilt dozer, ROPS cab, operator, standard equipment, rated capacity of lubricant, coolant, and full fuel tank.  18,872 lb  8560 kg 
 
Hydraulic 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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