Komatsu's PC228USLC-8 Hydraulic Excavators have a short tail swing profile, designed specifically for work in confined areas. By reducing the tail swing, the PC228USLC-8 is perfect for work on roadways, bridges, urban areas, or anywhere space is limited. The PC228USLC-8 provides the performance and productivity you expect from Komatsu equipment. Ecology and Economy • Low emission engine A powerful turbocharged and air-to-air aftercooled Komatsu SAA6D107E-1 engine provides 110 kW 148 HP(net). This engine is EPA Tier 3 and EU stage 3A emissions certified, without sacrificing power or machine productivity. • Economy mode for lower fuel consumption • Low operational noise The dynamic noise is reduced when compared to the previous model. Performance Features • Increased lift capacity and stability The counterweight mass has increased by 1300 kg 2865 lb for increased lift capacity over the front and side of the machine. • Improved hydraulic system efficiency Enhancements made to the Closed Center Load Sensing system result in faster cycle times and lower fuel consumption. • Wide working range • Powerful digging forces Maintenance Features • Long replacement interval for hydraulic oil and hydraulic filter • Remote mounted engine oil filter and fuel drain valve • Standard fuel pre-filter (with water separator) • Side-by-side cooling concept for improved serviceability • Equipped with self-diagnostic Equipment Management Monitoring System (EMMS) 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. Large TFT LCD Monitor • Easy-to-see 7" large multi-function color monitor panel • Can be displayed in 12 languages for global support TFT: Thin Film Transistor LCD: Liquid Crystal Display Versatility • Rounded cab design The cab swings within the same swing radius as the counterweight. • Short tail swing radius More compact than conventional models for improved performance in tight working conditions. Large Comfortable Cab • Low noise cab design with viscous mounts • Sliding convex door - easy entrance in confined areas • Large and comfortable cab space Reliability Features • High rigidity work equipment • Sturdy frame structure • Reliable Komatsu designed and manufactured components • Highly reliable electronic devices General Features • Standard rearview monitoring system (1 camera) • Improved attachment flow control • Slip resistant plates for improved grip • New cab design for hydraulic excavators

Engine

Model		Komatsu SAA6D107E-1*
Type		Water-cooled, 4-cycle, direct injection
Aspiration		Turbocharged and air-to-air aftercooled
Number of cylinders		6
Bore	4.21"	107 mm
Stroke	4.88"	124 mm
Piston displacement	408 in³	6.69 ltr
Power rating
Gross (SAEJ1995)	155 HP @ 2000 rpm	116 kW @ 2000 rpm
Net (ISO 9249/SAEJ1349)	148 HP @ 2000 rpm	110 kW @ 2000 rpm
Fan drive type		Mechanical
Governor		All-speed control, electronic
*EPA Tier 3 and EU Stage 3A emissions certified.

Hydraulics

Type		HydrauMind (Hydraulic Mechanical Intelligence New Design) system, closed-center system with load sensing valves and pressure compensated valves
Number of selectable working modes		5
Main pump		Variable-capacity piston pump.
Pumps for		Boom, arm, bucket, swing, and travel circuits.
Maximum flow	116 u.s. gal/min	439 ltr/min
Supply for control circuit		Self-reducing valve
Hydraulic motors:
Travel		2 x axial piston motor with parking brake
Swing		1 x axial piston motor with swing holding brake
Relief valve setting:
Implement circuits	5,400 psi	37.3 MPa 380 kgf/cm²
Travel circuits	5,400 psi	37.3 MPa 380 kgf/cm²
Swing circuits	4,120 psi	28.4 MPa 290 kgf/cm²
Pilot circuit	470 psi	3.2 MPa 33 kgf/cm²
Hydraulic cylinders:
(Number of cylinders – bore x stroke x rod diameter)
Boom / 2	4.7" x 54.5" x 3.3"	120 mm x 1385 mm x 85 mm
Arm / 1	5.3" x 58.7" x 3.7"	135 mm x 1490 mm x 95 mm
Bucket / 1	4.5" x 44.1" x 3.2"	115 mm x 1120 mm x 80 mm

Swing System

Drive method		Hydrostatic
Swing reduction		Planetary gear type, double reduction
Swing circle lubrication		Grease-bathed
Swing lock		Mechanical disc brake
Swing speed		11.0 rpm
Swing torque	48,124 ft lbs	6656 kg.m

Drive and Brakes

Steering control		Two-lever with pedals
Drive method		Hydrostatic
Maximum drawbar pull	45,410 lb	202 kN 20600 kgf
Travel motor		Axial piston motor, in-shoe design
Reduction system		Planetary gear type, double reduction
Gradeability		70%, 35°
Maximum travel speed (Auto-Shift):
High	3.4 mph	5.5 km/h
Mid	2.5 mph	4.1 km/h
Low	1.9 mph	3.0 km/h
Service brake		Hydraulic lock
Parking brake		Mechanical disc brake

Undercarriage

Center frame		X-frame
Track frame		Box-section
Seal of track		Sealed track
Track adjuster		Hydraulic
Number of shoes (each side):		49
Number of carrier rollers (each side):		2
Number of track rollers (each side):		9

Service Refill Capacities

Fuel tank	84.5 U.S. gal	320 ltr
Coolant	5.5 U.S. gal	21.0 ltr
Engine	6.1 U.S. gal	23.1 ltr
Final drive, each side	1.4 U.S. gal	5.2 ltr
Swing drive	1.9 U.S. gal	7.1 ltr
Hydraulic tank	33.3 u.s. gal	126 ltr 33.3 u.s. gal

Operating Weight (approximate)

Shoes	Operating Weight	Ground Pressure
600 mm 24"	24130 kg 53,195 lb	0.51 kg/cm² 7.28 psi
700 mm 28"	24395 kg 53,785 lb	0.44 kg/cm² 6.21 psi
800 mm 31.5"	24675 kg 54,405 lb	0.39 kg/cm² 5.62 psi