PC238USLC-11 Komatsu excavator specs & Dimensions (2017 - 2026)

Heavy-duty cooled Exhaust Gas Recirculation (EGR) system

The system recirculates a portion of exhaust gas into air intake and lowers combustion temperatures to reduce NOx emissions. Furthermore, while EGR gas flow is increased, by incorporating a high-efficiency and compactly designed cooling system, the system achieves a dynamic reduction of NOx while helping reduce fuel consumption.

High Pressure Common Rail (HPCR) fuel injection system

High pressure fuel injection with computerized control attains close-to-complete combustion, reducing Particulate Matter (PM) emissions. While this technology is already used in current engines, the new system uses a higher-pressure injection, thereby reducing both PM emissions and fuel consumption at all engine load conditions.

Efficient Hydraulic System

The PC238USLC-11 uses a Closed-Center Load Sensing System (CLSS) that improves fuel efficiency and provides quick response to the operator's demands. The control system matches engine and hydraulic demand at the most efficient point under any load condition. There have also been improvements in the main valve and hydraulic circuit to reduce hydraulic loss, resulting in higher efficiency and lower fuel consumption.

Viscous Fan Clutch

A temperature controlled viscous fan clutch improves engine efficiency and reduces engine power requirements when operating in cooler temperatures.

Komatsu Auto Idle Shutdown

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 countdown to engine shutdown can be easily programmed from five to 60 minutes.

Standard high-efficiency fuel filter and fuel pre-filter with water separator

A high-efficiency fuel filter and a pre-filter with water separator increase reliability. The fuel pre-filter is also equipped with a priming pump.

Arm Quick Return Valve

When the arm is extended, the quick return valve directs additional oil through a second line directly back to tank which reduces back pressure. This reduces fuel consumption and improves efficiency.

Pattern Change Valve (Standard)

A pattern change valve is conveniently located at the front of the machine, making switching from excavator controls to backhoe controls quick and easy.

Side-by-side Cooling

Since the radiator, aftercooler, and oil cooler are arranged in parallel, it is easy to clean, remove, and install them. Additionally, the radiator, aftercooler, and oil cooler, made of aluminum, have high cooling efficiency and are easily recycled.

DEF Tank

The DEF tank is installed on the right front platform for easy access. It includes a sight glass and a fold-down shelf to support a DEF container during filling. Furthermore, a separated pump provides excellent serviceability.

Conventional Performance in a Tight Tail Body

Heavy counterweight mass provides equal or better lift capacity than most conventional excavators in the same size class. Rounded cab profile with a sliding door, allows the cab to swing within the same swing radius as the counterweight for true tight tail performance.

Ideal for Confined Applications

The PC238USLC-11 is an ideal machine for applications such as road work, underground utilities or other applications where a conventional excavator will not fit. The contoured cab design and convex sliding door allow the cab to swing within the same radius as the counterweight. Trucks can be positioned closer to the machine when working within one lane of traffic, improving operator confidence and job efficiency.

Short Implement Swing Radius

A higher boom raise angle than a standard excavator reduces the minimum front implement swing radius down to 2310 mm 7'7". The result is greater front swing clearance when space is limited.

Short Tail Swing Radius

1810 mm 5'11" short tail swing radius of the PC238USLC-11 allows the machine to work in more confined areas than a conventional machine.

Greater Working Ranges

Raising the boom on the PC238USLC-11 to a greater angle enhances overall working performance. Job sites that require a taller upper reach, such as demolition and slope cutting, also benefit from the increased digging and dumping ranges of the PC238USLC-11.

KomVision (Optional)

An optional three camera system provides a bird’s eye view (including cab visibility) of the machine and surrounding area. This system improves operation and situational awareness on the jobsite. KomVision benefits operators working in urban environments, confined spaces, and high traffic jobsites from increased visibility and situational awareness.

Optional Equipment

Hydraulic System Hydraulic quick unit One additional actuator Proportional control handles Guards and Covers Cab guards Full front guard, OPG level 1 (ISO 10262) Full front guard, OPG level 2 (ISO 10262) Bolt-on top guard, OPG level 2 (ISO 10262) Lower front window guard Undercarriage Shoes 800 mm 31.5" triple grouser 600 mm 24" road liner Operator Environment Cab accessories Rain visor Sun visor Other Equipment KomVision Right side view monitor system Working light, two on cab

Washable cab floor mat

The PC238USLC-11’s floor is easy to keep clean. The gently inclined surface has a flanged floor mat and drainage holes to facilitate run off.

Komatsu Oil and Wear Analysis (KOWA)

KOWA detects fuel dilution, coolant leaks, and measures wear metals. Proactively maintain your equipment Maximize availability and performance Can identify potential problems before they lead to major repairs Reduce life cycle cost by extending component life