**Komatsu PC128UU-2 Excavator**

**Unveiling the Epitome of Excavator Excellence**

Introducing the Komatsu PC128UU-2 Excavator, a technological marvel that sets the benchmark for uncompromising performance, efficiency, and reliability. This state-of-the-art machine is meticulously engineered to empower operators with exceptional productivity and profitability.

**Power and Unmatched Efficiency**

* **Komatsu SAA4D107E-2 Engine:** The heart of the PC128UU-2 is its advanced Komatsu SAA4D107E-2 engine, delivering an impressive 98 horsepower (73 kW).
* **Closed-Center Load Sensing Hydraulic System:** This advanced hydraulic system provides unparalleled precision and power, optimizing performance for demanding applications.
* **Optimized Fuel Consumption:** The PC128UU-2's fuel-efficient design ensures maximum profitability, reducing operating costs and environmental impact.

**Enhanced Control and Maneuverability**

* **Joystick Control with Fingertip Hydraulics:** Operators experience effortless control with the intuitive joystick levers, providing precise movements and rapid response times.
* **Variable Flow Hydraulics:** This innovative feature allows operators to tailor hydraulic flow to suit the specific requirements of each task, maximizing efficiency and performance.
* **Compact Dimensions:** Despite its exceptional power, the PC128UU-2 boasts compact dimensions, facilitating maneuverability in confined spaces and urban work environments.

**Superior Comfort and Ergonomics**

* **Spacious Cab:** The spacious and ergonomically designed cab provides operators with an unparalleled level of comfort, reducing fatigue and enhancing productivity.
* **Air Conditioning:** The integrated air conditioning system ensures a pleasant work environment, even in extreme temperatures.
* **Suspension Seat:** The advanced suspension seat absorbs vibrations, minimizing operator discomfort and maximizing focus during prolonged work sessions.

**Uncompromising Durability and Reliability**

* **Robust Construction:** The PC128UU-2 is built to withstand the rigors of heavy-duty excavation work, featuring a robust undercarriage and durable components.
* **Advanced Monitoring System:** The comprehensive monitoring system provides real-time diagnostics and alerts, ensuring early detection of potential issues and minimizing downtime.
* **Extensive Service Network:** Komatsu's global service network ensures prompt and reliable support, maximizing uptime and reducing maintenance costs.

**Innovative Technology for Enhanced Performance**

* **KOMTRAX Telematics System:** This advanced telematics system provides remote monitoring and data analysis, enabling owners to optimize fleet management, improve productivity, and reduce operating costs.
* **ECO Mode:** The ECO Mode feature automatically adjusts engine speed and hydraulic output to minimize fuel consumption without compromising performance.
* **Power Boost:** When additional power is required, the Power Boost mode delivers an instant increase in engine torque, enabling operators to tackle demanding tasks with ease.

**A Versatile Solution for Demanding Applications**

The Komatsu PC128UU-2 Excavator is the ultimate solution for a wide range of applications, including:

* **Trenching and Excavating:** With its powerful hydraulics and precision control, the PC128UU-2 excels in trenching, excavation, and backfilling operations.
* **Foundation Work:** The stability and durability of the PC128UU-2 make it ideal for foundation work, providing a solid base for buildings and structures.
* **Grading and Landscaping:** The versatility and maneuverability of the PC128UU-2 allow for efficient grading and landscaping tasks, creating beautiful outdoor spaces.
* **Urban Construction:** The compact dimensions and low emissions of the PC128UU-2 make it well-suited for urban construction projects, where space is at a premium.

**Experience Excavating Excellence**

The Komatsu PC128UU-2 Excavator is a testament to Komatsu's unwavering commitment to innovation and customer satisfaction. With its exceptional power, superior control, industry-leading fuel efficiency, and uncompromising durability, the PC128UU-2 empowers operators to achieve maximum productivity and profitability in even the most challenging excavation environments.

This manual has been prepared as an aid to improve the quality of repairs by giving the serviceman an accurate understanding of the product and by showing him the correct way to perform repairs and make judgements. Make sure you understand the contents of this manual and use it to full effect at every opportunity.

APPLICABLE MODELS :
Komatsu PC128UU-2 Excavator SN: 5001 and up
PC128UU-2 mounts the S4D102E-1 engine.
For details of the engine, see the 102 Series Engine Shop Manual.

TABLE OF CONTENTS :
GENERAL
STRUCTURE AND FUNCTION
TESTING AND ADJUSTING
DISASSEMBLY AND ASSEMBLY
MAINTENANCE STANDARD
OTHERS

Downloadable : YES
File Format : PDF
Requirements : PDF Reader
Compatible : Windows & Mac
Language : English
Total pages : 623

This manual mainly contains the necessary technical information for operations performed in a service workshop.
For ease of understanding, the manual is divided into chapters for each main group of components; these chapters are further divided into the following sections.

STRUCTURE AND FUNCTION
This section explains the structure and function of each component. It serves not only to give an understanding of the structure, but also serves as reference material for troubleshooting.

TESTING AND ADJUSTING
This section explains checks to be made before and after performing repairs, as well as adjustments to be made at completion of the checks and repairs.
Troubleshooting charts correlating "Problems" with "Causes" are also included in this section.

DISASSEMBLY AND ASSEMBLY
This section explains the procedures for removing, installing, disassembling and assembling each component, as well as precautions for them.

MAINTENANCE STANDARD
This section gives the judgment standards for inspection of disassembled parts.
The contents of this section may be described in STRUCTURE AND FUNCTION.

OTHERS
This section mainly gives hydraulic circuit diagrams and electric circuit diagrams.
In addition, this section may give the specifications of attachments and options together.

* This Manual PDF Compatible with All version Windows PC OS, MAC OS and Linux OS.
* Compression utility needed to extract it first, if PDF locate in the archive (e.g. 7-zip).