Two counterweight options provide improved lifting performance as well as versatility to meet transportation requirements. New engine and hydraulic pump control technology improves operational efficiency and lowers fuel consumption by up to 10%. A powerful Komatsu SAA4D107E-2 engine provides a net output of 86 kW 115 HP. This engine is EPA Tier 4 Interim and EU stage 3B emissions certified. Komatsu Diesel Oxidation Catalyst (KDOC) reduces particulate matter using 100% passive regeneration. No DPF is required. Komatsu Variable Flow Turbocharger provides optimum air flow under all speed and load conditions. Komatsu's Closed Center Load Sensing (CLSS) hydraulic system provides quick response and smooth operation to maximize productivity. Enhanced working modes are designed to match engine speed, pump delivery, and system pressure to the application. Large LCD color monitor panel: ■ 7" high resolution screen ■ Provides "Eco-Guidance" for fuel efficient operation ■ Enhanced attachment control ■ Aux jack and (2) 12V Outlets Rearview monitoring system (standard) Equipment Management Monitoring System (EMMS) continuously monitors machine operation and vital systems to identify machine issues and assist with troubleshooting. Enhanced working environment ■ High back, heated, and airsuspension operator seat ■ Integrated ROPS cab design (ISO 12117-2) ■ Cab meets ISO Level 1 Operator Protective Guard (OPG) top guard (ISO 10262) The standard counterweight increases lifting performance up to 5%, while an optional heavier counterweight provides up to 15% more lift capacity when compared to the previous series. Wide access service doors provide easy access for ground level maintenance. Guardrails (standard) provide convenient access to the upper structure. Battery disconnect switch allows a technician to disconnect the power supply before servicing the machine. Komatsu designed and manufactured components Swing out cooler design provides easy access to service and clean the cooler assembly. Swing out cooler design provides easy access to service and clean the cooler assembly. KOMTRAX equipped machines can send location, SMR and operation maps to a secure website utilizing wireless technology. Machines also relay error codes, cautions, maintenance items, fuel levels, and much more.

Engine

Model		Komatsu SAA4D107E-2*
Type		Water cooled, 4-cycle, direct injection
Aspiration		Turbocharged, air-to-air aftercooled
Number of cylinders		4
Bore	4.21"	107 mm
Stroke	4.88"	124 mm
Piston displacement	272 in³	4.46 ltr
Horsepower:
Gross (SAEJ1995) @ 2100 rpm	121 HP	90 kW
Net (ISO 9249/SAEJ1349) @ 2100 rpm	115 HP	86 kW
Governor		All speed control, electronic
Lubrication system :
Method		Gear pump, force-lubrication
Filter		Full-flow
Air cleaner		Air cleaner, double element and auto dust evacuator
*EPA Tier 4 Interim and EU stage 3B emissions certified

Hydraulics

Type		HydrauMind (Hydraulic Mechanical Intelligence) system, closed-center system with load sensing valve and pressure compensated valve
Main pump:
Type		Variable capacity piston type
Pumps for		Boom, arm, bucket, swing, and travel circuits
Maximum flow	79 gal/min	298 ltr/min
Hydraulic motors:
Travel		2 x piston motor with parking brake
Swing		1 x axial piston motor with swing holding brake
Relief valve setting:
Implement circuits	5,450 psi	380 kgf/cm² / 37.3 MPa
Swing circuit	4,195 psi	295 kgf/cm² / 28.9 MPa
Pilot circuit	470 psi	33 kgf/cm² / 3.2 MPa
Hydraulic cylinders:
Number of cylinders	bore x stroke x rod diameter	bore x stroke x rod diameter
Boom / 2	4.3" x 46.3" x 3.0"	110 mm x 1175 mm x 75 mm
Arm / 1	4.7" x 52.8" x 3.3"	120 mm x 1342 mm x 85 mm
Bucket / 1	4.1" x 40.4" x 2.8"	105 mm x 1027 mm x 70 mm

Drives & Brakes

Steering control		Two levers with pedals
Drive method		Fully hydrostatic
Maximum drawbar pull	35,164 lb	15950 kgf / 156 kN
Gradeability	35°	70%
Maximum travel speed:
High	3.4 mph	5.5 km/h
Low (Auto-Shift)	1.9 mph	3.0 km/h
Service brake		Hydraulic lock
Parking brake		Mechanical disc

Swing System

Drive method		Hydraulic motor
Swing reduction		Planetary gear
Swing circle lubrication		Grease-bathed
Swing lock		Mechanical disc brake
Swing speed		12.0 rpm
Swing torque	31,314 ft lbs	4331 kg•m

Undercarriage

Center frame		X-frame leg
Track frame		Box-section
Track type		Sealed
Track adjuster		Hydraulic
Number of shoes (each side)		44
Number of carrier rollers (each side)		2
Number of track rollers (each side)		7

Coolant & Lubricant Capacity (refilling)

Fuel tank	79.25 U.S. gal	300 ltr
Coolant	4.9 U.S. gal	23.5 ltr
Engine	4.8 U.S. gal	18 ltr
Final drive, each side	1.43 U.S. gal	5.4 ltr
Swing drive	1.2 U.S. gal	4.5 ltr
Hydraulic tank	32.0 U.S. gal	121 ltr

Operating Weight (APROXIMATE)

Shoes:	Operating Weight:	Ground Pressure:
24" 600 mm	38,600 lb 17500 kg	5.98 psi 0.42 kgf/cm² / 41.2 kPa
28" 700 mm	39,104 lb 17739 kg	5.06 psi 0.37 kgf/cm² / 36.2 kPa