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Komatsu D37PX-24 SMALL DOZERS

BladeCapacityMax	2.79
BladeCapacityMin	2.79
Horsepower	89 @2200 rpm
OperatingWeightMax	20503
OperatingWeightMin	20503

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Feature Parameter

Komatsus New Emission Regulations-compliant Engine

New regulations effective in 2014 require the reduction of NOx emissions. In addition to refining the U.S. EPA Tier 4 Interim technologies, Komatsu developed a new Selective Catalytic Reduction (SCR) device in-house.

Auto Idle Shutdown Function

Komatsu auto idle shutdown automatically shuts the engine down after idling for a set period of time to reduce unnecessary fuel consumption and exhaust emissions. The amount of time before the engine is shutdown can be easily programmed from 5 to 60 minutes.

HST with Electronic Control

The D37EX/PX-24 is equipped with Komatsu-designed HST that allows for Quick-Shift or variable speed selection. The HST consists of dual-path closed-circuits, with two variable displacement piston pumps and two variable displacement travel motors. Hydrostatic steering eliminates steering clutches and brakes, providing smooth, powerful turns. Fully electronic control provides complete automatic shifting and enables smooth control. Engine speed is controlled using an electronic fuel control dial.

Selectable Working Mode

P mode is the mode designed for powerful operation and maximum production. E mode is designed for general dozing applications, providing adequate speed and power, while saving energy. For fuel reduction and energy savings, the monitor panel allows the operator to easily switch between working modes, depending on working conditions.

Unrivaled Blade Visibility

The D37EX/PX-24 incorporates Komatsu's super-slant nose design. Komatsu's innovative design provides excellent blade visibility for improved machine control and increased efficiency and productivity.

Palm Command Control System (PCCS) Levers

Komatsu’s ergonomically designed PCCS handles create an operating environment with complete operator control.

Single Pedal (Decelerator/Brake Pedal) to be operated for Speed Control, during Operation

Machine operation is simple because brake function has been integrated into the decelerator pedal. Machine travel speed can be controlled using one pedal. The pedal function can be changed by a mode selector switch.

Large Multi-Lingual High Resolution LCD Monitor

A large, user-friendly color monitor provides easy-tounderstand information for the operator. Excellent screen visibility is achieved with a high resolution LCD monitor that is easy to read at various angles and lighting conditions. Simple and easy-to-operate switches and function keys facilitate multi-function operations. The monitor displays data in 26 languages.

Energy Saving Operation

Ecology guidance

In order to support efficient operation, the following four messages are displayed for fuel saving operation. These can be displayed by the operator, if desired.

Avoid Excessive Engine Idling
Use Economy Mode to Save Fuel
Avoid Hydraulic Relief Pressure
Avoid Over Load

Ecology gauge

To help the operator to perform in an environmentally friendly way and minimize energy consumption, an easy-to-read “Ecology gauge” is displayed on the left of the multi-monitor screen.

Fuel consumption display

Average fuel consumption during the day is displayed and updated every 10 seconds.

Additional Operator Convenience Equipment

Rear view monitor system

On the large LCD color monitor, the operator can view, through one camera, areas directly behind the machine. This camera can be synchronized with reverse operation.

Secondary engine shutdown switch

A new secondary switch has been added at the side of the front console to shut down the engine in an emergency.

PAT Dozer with Adjustable Pitch

A power angle power tilt dozer blade with adjustable blade pitch system is available on the D37EX/PX-24. The hydraulic blade tilt and angling function expands versatility and productivity in a variety of applications and manually adjustable blade pitch.

Rear, hydraulically-driven, swing-up fan

The D37EX/PX-24 utilizes a swing-up fan with a gas strut-assisted lift system to provide easy access to the (side-by-side) radiator, oil cooler and charge air cooler. The hydraulic fan has a cleaning mode which enables the fan to rotate in the reverse direction to help clear off objects that are restricting air flow.

Modular design

One of the design goals behind the creation of the D37EX/PX-24 was to manufacture a more durable machine. This was achieved by reducing component complexity and using a strong modular design for increased serviceability and durability. Steel castings reduce the number of welds, improving rigidity and strength.

Parallel Link Undercarriage System (PLUS)

Komatsu's PLUS rotating bush design provides less downtime, longer wear, and with up to 40% lower undercarriage maintenance costs. Rotating bushings eliminate the cost and downtime for bushing turns, and strengthened rollers and links increase wear life up to two times. With PLUS, individual links can be replaced with common track tools.

Easy Maintenance

Planned maintenance and daily checks are the only way to ensure long service life from equipment. That’s why Komatsu designed the D37EX/PX-24 with conveniently located maintenance points to make necessary inspections and maintenance quick and easy.

Robust Guarding And Attachments

Komatsu offers a full guarding package to help protect your machine and operator in severe applications.

Engine

Model		Komatsu SAA4D95LE-7*
Type		4-cycle, watercooled, direct injection
Aspiration		Variable flow, turbocharged, air-to-air aftercooled
Number of cylinders		4
Bore x stroke	95 mm x 115 mm	3.75" x 4.52"
Piston displacement	3.26 ltr	199 in³
Governor		All-speed, electronic
Horsepower:
SAE J1995 - Gross	67 kW	91 HP
ISO 9249 / SAE J1349 - Net	66 kW	89 HP
Rated rpm		2200 rpm
Fan drive type		Hydraulic
Lubrication system:
Method		Gear pump, force lubrication
Filter		Full-flow
*EPA Tier 4 Final 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 two-stage planetary gear reduction. Compact, in-shoe mount reduces risk of damage by debris. Bolt-on sprocket ring with triple labyrinth seal design.

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 back 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*

2.3 m

91"

*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.
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	47 mm	1.9"
Shoe width (standard)	600 mm	24"
Ground contact area	26760 cm²	4,148 in²
Ground pressure (with standard shoe) (ISO 16754)	29.9 kPa 0.30 kgf/cm²	4.33 psi
Track gauge	1710 mm	5'7"
Length of track on ground	2230 mm	7'4"

Service Refill Capacities

Coolant	34 ltr	9.0 U.S. gal
Fuel tank	190 ltr	50.2 U.S. gal
Engine oil	11 ltr	2.9 U.S. gal
Hydraulic tank	64 ltr	17 U.S. gal
Final drive (each side)	3.5 ltr	0.9 U.S. gal
Diesel Exhaust Fluid (DEF) tank	10 ltr	2.6 U.S. gal

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.	8170 kg	18,012 lb
Operating weight: Operating weight: Including power angle tilt dozer, ROPS cab, operator, standard equipment, rated capacity of lubricant, coolant, and full fuel tank.	9300 kg	20,503 lb

Hydraulic System

Closed-Center Load Sensing System (CLSS) designed for precise and responsive control, and for efficient simultaneous operation.

Parameter

Model		Komatsu SAA4D95LE-7*
Type		4-cycle, watercooled, direct injection
Aspiration		Variable flow, turbocharged, air-to-air aftercooled
Number of cylinders		4
Bore x stroke	95 mm x 115 mm	3.75" x 4.52"
Piston displacement	3.26 ltr	199 in³
Governor		All-speed, electronic
Horsepower:
SAE J1995 - Gross	67 kW	91 HP
ISO 9249 / SAE J1349 - Net	66 kW	89 HP
Rated rpm		2200 rpm
Fan drive type		Hydraulic
Lubrication system:
Method		Gear pump, force lubrication
Filter		Full-flow
*EPA Tier 4 Final emissions certified

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

Minimum turning radius*

2.3 m

91"

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.
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	47 mm	1.9"
Shoe width (standard)	600 mm	24"
Ground contact area	26760 cm²	4,148 in²
Ground pressure (with standard shoe) (ISO 16754)	29.9 kPa 0.30 kgf/cm²	4.33 psi
Track gauge	1710 mm	5'7"
Length of track on ground	2230 mm	7'4"

Coolant	34 ltr	9.0 U.S. gal
Fuel tank	190 ltr	50.2 U.S. gal
Engine oil	11 ltr	2.9 U.S. gal
Hydraulic tank	64 ltr	17 U.S. gal
Final drive (each side)	3.5 ltr	0.9 U.S. gal
Diesel Exhaust Fluid (DEF) tank	10 ltr	2.6 U.S. gal

Tractor weight: Including ROPS cab, U frame for power angle tilt dozer, rated capacity of lubricant, coolant, full fuel tank, operator, and standard equipment.	8170 kg	18,012 lb
Operating weight: Operating weight: Including power angle tilt dozer, ROPS cab, operator, standard equipment, rated capacity of lubricant, coolant, and full fuel tank.	9300 kg	20,503 lb

Relief valve setting	27.4 MPa / 280 kg/cm²	3,974 psi
Hydraulic cylinders		Double-acting, piston type
Number of cylinders:	Bore	Bore
Blade lift / 2	75 mm	3.0"
Blade tilt / 1	90 mm	3.5"
Blade angle / 2	80 mm	3.1"
Hydraulic oil capacity (refill):
Power angle tilt dozer	64 ltr	17 U.S. gal
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